WO2008069252A1 - 高耐食性複合体の製造方法 - Google Patents
高耐食性複合体の製造方法 Download PDFInfo
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- WO2008069252A1 WO2008069252A1 PCT/JP2007/073526 JP2007073526W WO2008069252A1 WO 2008069252 A1 WO2008069252 A1 WO 2008069252A1 JP 2007073526 W JP2007073526 W JP 2007073526W WO 2008069252 A1 WO2008069252 A1 WO 2008069252A1
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- resin
- resin composition
- magnesium alloy
- shaped part
- chemical conversion
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/57—Treatment of magnesium or alloys based thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/22—Orthophosphates containing alkaline earth metal cations
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/22—Acidic compositions for etching magnesium or alloys thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/20—Inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/02—Aluminium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49885—Assembling or joining with coating before or during assembling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31692—Next to addition polymer from unsaturated monomers
Definitions
- the present invention relates to a magnesium component used for a housing of an electronic device, a housing of a home appliance, a structural component, a mechanical component, or the like, or a highly corrosion-resistant composite in which a magnesium alloy component and a resin composition are integrated. It relates to the manufacturing method. More specifically, the present invention relates to a method for producing a highly corrosion-resistant composite in which a resin composition is integrated with a magnesium part or a magnesium alloy part produced by various machining processes. For example, various electronic devices for mopile, home appliances, medical Magnesium parts with excellent corrosion resistance, or magnesium alloy parts and resin compositions, used for equipment, structural parts for vehicles, parts for vehicles, parts for building materials, other structural parts and exterior parts, etc. The present invention relates to a method for producing a highly corrosion-resistant composite in which is integrated.
- PBT polybutylene terephthalate resin
- PPS polyphenylene sulfide resin
- a large hole is provided in the anodized film of aluminum material, and a synthetic resin body is formed in this hole.
- a joining technique for biting in and binding for example, see Patent Document 2.
- Patent Document 1 The principle of injection joining in Patent Document 1 is considered as follows.
- the aluminum alloy was immersed in a dilute aqueous solution of a water-soluble amine compound, and the aluminum alloy was finely etched with a weakly basic aqueous solution. At the same time, amine compound molecules were adsorbed on the surface of the aluminum alloy. .
- the aluminum alloy thus treated is inserted into an injection mold, and the molten thermoplastic resin is injected at a high pressure.
- the amine compound molecule adsorbed on the surface of the thermoplastic resin and the aluminum alloy encounters heat and tries to rapidly cool and solidify in contact with the aluminum alloy maintained at a low mold temperature.
- the resin will dive into the recesses on the surface of the ultrafine aluminum alloy due to delay in solidification. Due to such a phenomenon, the composite composed of the aluminum alloy and the thermoplastic resin is firmly bonded without peeling off the thermoplastic resin from the surface of the aluminum alloy. That is, when an exothermic reaction occurs, strong injection joining can be performed.
- PBT and PPS capable of exothermic reaction with amine compounds can be injection-bonded with this aluminum alloy.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-216425
- Patent Document 2 WO2004-055248 A1
- the present inventors have developed a resin composition suitable for injection joining in order to make the above-described invention more effective.
- a composition in which the properties relating to the crystallinity of PPS are changed is more effective than a simple PPS composition in which the linear expansion coefficient is matched with that of an aluminum alloy. That is, as a result of studying whether the present invention has been developed and the resin composition parts have been improved to limit the pretreatment methods necessary for metal parts, the inventors have determined that specific PPS compositions and PBT compositions have been developed.
- the present invention relates to a hard resin ejection joining technique relating to a magnesium alloy.
- Magnesium alloys are the lightest and most important of all practical metals, and are light and useful! /, Even when compared to the aluminum alloy (specific gravity 2.7), which is a lightweight specific gravity 1.7 It is a neighborhood.
- specific gravity 2.7 which is a lightweight specific gravity 1.7 It is a neighborhood.
- it is more chemically active and harder to handle than aluminum alloys. That is, in a magnesium alloy, a natural oxide layer is generated by oxygen in the air immediately after the metal surface is exposed by polishing or the like, and the strength and stability of the natural oxide layer are more stable than aluminum alloy. Very inferior.
- the magnesium alloy is treated by either chemical conversion treatment or electrolytic oxidation.
- the present inventors have initially confirmed that a certain resin composition can be injection-bonded to a magnesium alloy that has been subjected to chemical conversion treatment S, which is still insufficient to commercialize and commercialize all aspects. was there . That is, the chemical conversion treatment method that obtains the best bonding force by injection bonding has a problem that the corrosion resistance is slightly inferior to the chemical conversion treatment methods currently being carried out.
- the present invention has been made to increase the injection joining force and solve the above-mentioned problems, and achieves the following object.
- the present invention takes the following means in order to achieve the above object.
- the step of chemically etching the shaped part by immersing the shaped part in an acidic aqueous solution and the step of immersing the shaped part that has been chemically etched in an aqueous solution containing permanganate and having a manganese oxide as a component on the surface.
- a resin composition having a resin composition comprising 70 to 97% by mass of polyphenylene sulfide and 3 to 30% by mass of a polyolefin resin;
- a resin composition having a resin component composition comprising 70 to 97% by weight of polybutylene terephthalate resin and 3 to 30% by weight of polyethylene terephthalate resin and / or polyolefin resin, and
- Resin composition having a resin component composed mainly of an aromatic polyamide resin containing both polyamide obtained from hexamethylenediamine and isophthalic acid, and polyamide obtained from hexamethylenediamine and terephthalic acid
- the method for producing the highly corrosion-resistant composite of the present invention 2 comprises
- the step of chemically etching the shaped part by immersing the shaped part in an acidic aqueous solution and the step of immersing the shaped part that has been chemically etched in an aqueous solution containing permanganate and having a manganese oxide as a component on the surface.
- the shaped part formed with the thin layer is inserted into an injection mold, and 70 to 97% by mass of polyphenylene sulfide and 3 to 30% by mass of a polyolefin resin are added.
- a resin composition having a resin component composition comprising 70 to 97% by weight of polybutylene terephthalate resin and 3 to 30% by weight of polyethylene terephthalate resin and / or polyolefin resin, and
- Resin composition having a resin component composed mainly of an aromatic polyamide resin containing both polyamide obtained from hexamethylenediamine and isophthalic acid, and polyamide obtained from hexamethylenediamine and terephthalic acid
- It comprises a step of chemical conversion treatment by immersing the fixed shaped part and the resin composition in a chemical conversion solution for magnesium alloy.
- a resin composition having a resin composition comprising 70 to 97% by weight of polyphenylene sulfide and 3 to 30% by weight of a polyolefin resin;
- a resin composition having a resin component composition comprising 70 to 97% by weight of polybutylene terephthalate resin and 3 to 30% by weight of polyethylene terephthalate resin and / or polyolefin resin, and
- Resin composition having a resin component composed mainly of an aromatic polyamide resin containing both polyamide obtained from hexamethylenediamine and isophthalic acid, and polyamide obtained from hexamethylenediamine and terephthalic acid
- a step of integrally fixing the shaped part and the resin composition is characterized in that it comprises a step of chemical conversion treatment by immersing the fixed shaped part and the resin composition in a chemical conversion treatment solution for a manganese phosphate-based or silicon-based magnesium alloy.
- the magnesium or magnesium alloy used in the present invention is all magnesium or magnesium alloy for which a wrought alloy such as AZ31 and a forging alloy such as AZ91 are commercially available.
- a wrought alloy such as AZ31 and a forging alloy such as AZ91 are commercially available.
- a part shaped by means such as die casting, thixo mold, injection molding or the like, or a part that is further machined to have a shaped shape can be used.
- wrought alloys, etc. it is possible to use plate materials that are intermediate materials, and parts that have been shaped by applying mechanical processing such as hot pressing.
- Magnesium or a magnesium alloy used in the present invention has a thin film containing manganese oxide as a main component on the surface.
- the surface treatment applied to magnesium alloys to improve corrosion resistance is performed by immersing magnesium or a magnesium alloy, which has a high ionization tendency and is easily corroded in air, in an aqueous solution of a salt or acid of a different metal. In this process, a stable layer of a metal oxide, a metal carbonate or a metal phosphate containing a dissimilar metal is formed, and the presence of the layer prevents corrosion of the internal metal.
- such immersion type surface treatment is referred to as chemical conversion treatment, but the present invention uses one method included in chemical conversion treatment.
- chemical conversion treatment including degreasing and chemical etching performed before chemical conversion treatment.
- “chemical conversion treatment” refers to treatment in a narrow sense for forming a corrosion-resistant layer, and before that, processing such as degreasing and etching that is normally performed is “pretreatment”.
- pretreatment processing such as degreasing and etching that is normally performed.
- main treatment The essential process for forming the chemical conversion film including the treatment
- liquid treatment liquid treatment
- the chemical conversion treatment applied to magnesium and magnesium alloys has long been known as a corrosion protection layer that is immersed in an aqueous solution containing chromic acid and contains chromium oxide or chromium phosphate as a main component. It is a chemical conversion treatment provided on the surface and is generally called chromate treatment. This chromate treatment is known from US Pat. No. 2,438,877. Recently, it has been immersed in a mixed aqueous solution of manganese salt and phosphoric acid to prevent corrosion. Many processes for providing layers are used.
- the chromate treatment method has been used for a long time as a treatment method with excellent corrosion resistance, but the use of hexavalent chromium, which is environmentally problematic in the treatment solution, has recently been regarded as a problem and has not been used. Therefore, chemical conversion treatment methods that do not use chromium are required, and methods using the above-described manganese and other metal salts have been developed. Recently, the method using manganese phosphate compounds is often used instead of chromate treatment. However, the present inventors have obtained an experimental result that the chemical conversion treatment method most suitable for injection joining is not based on manganese phosphate.
- the surface obtained by the chemical conversion treatment has irregularities on the order of m (micrometers), and there are minute irregularities with a height difference of 10 nm (nanometers) or more on the concave surface.
- the fine irregularities are 50 to; when there is a difference in height of 50 nm in the OOnm cycle, 50 to; when the diameter is 50 nm in the OOnm cycle, and there are recesses or projections of the same depth or height,
- the injection joining force is strongest and preferable.
- the surface layer is not a natural oxide layer of a magnesium alloy but a metal oxide, carbonate, hydroxide, and / or phosphorus oxide containing magnesium, that is, a high-hardness layer of ceramic.
- the thickness of the chemical conversion film is not too thick.
- the chemical conversion film is as thick as possible. Due to the above circumstances, there is a problem that the chemical conversion treatment method preferable for injection joining is not necessarily appropriate for corrosion resistance. Accordingly, the present inventors have developed a surface treatment method for a metal alloy part that forms a surface with excellent corrosion resistance while exhibiting high bonding strength in injection bonding. Further, the metal / resin integrated product obtained by the resin injection joining to the surface-treated metal alloy part was directly put into a conventional chemical conversion solution.
- Magnesium alloy parts are preferably first immersed in a degreasing tank to remove oils and finger grease adhered by machining. Specifically, it is preferable to put a commercially available magnesium degreasing material in warm water at a concentration as specified by the pharmaceutical manufacturer to prepare an aqueous solution, immerse in this, and wash with water. For normal commercial products, the concentration is 5 ⁇ ; 10%, and the solution temperature is 50 ⁇ 80 ° C. Next, it is immersed in an acidic aqueous solution and etched to dissolve the surface layer of the magnesium alloy part, and remove any dirt and residual oil or surfactant residues.
- the liquid used is an organic carboxylic acid having a pH of 2 to 5, such as acetic acid, propionic acid, citrate, malonic acid, benzoic acid, phthalenoic acid, and inorganic acids such as nitric acid, hydrochloric acid, phosphoric acid, and hydrofluoric acid.
- Aqueous solution can be used
- aliphatic carboxylic acids such as acetic acid, propionic acid, citrate and malonic acid are preferred!
- the alloy contains dissimilar metals. It is rare.
- AZ31 and AZ91 contain about 3 to 9% aluminum and 1% zinc.
- aluminum and zinc are hardly dissolved and deposited on the surface as insoluble materials. A process is required to melt and remove these deposits. This is so-called smut removal.
- the aluminum smut is first dissolved in a weakly basic aqueous solution (first smut treatment), and then immersed in a strong basic aqueous solution to dissolve and remove the zinc smut (second smut). Processing) is preferred! /, The method.
- the aluminum exposed on the surface of the alloy just by removing the rough aluminum smut was also considered to have an effect on the roughness obtained by melting.
- a degreasing agent for an aluminum alloy is used in the first smut removal step of chemical alloying treatment, but the present inventors have tried many other weakly basic aqueous solutions. As a result, it turned out that various things can be used. Particularly excellent ones are shown in the examples.
- the first varnish treatment was performed by immersing a 15 to 25% strength aqueous caustic soda solution at a temperature of 60 to 80 ° C. for 5 to 10 minutes.
- This treatment is preferably a two-stage dipping treatment, that is, a fine etching is performed by dipping in a weakly acidic aqueous solution for a very short time, followed by chemical conversion treatment.
- a weakly acidic aqueous solution of PH4-6 such as organic carboxylic acids such as acetic acid, propionic acid, citrate, benzoic acid, phthalic acid, phenol, phenol derivatives, etc. can be used, and the immersion time is 15-90 seconds. A very short time is preferred.
- This fine etching process is not a normal magnesium alloy chemical conversion treatment! /, But the present inventors Judging from the experimental results, it was determined that including the fine etching process produced a stronger injection joining force.
- the chemical conversion treatment step is the result of trying most of the conventionally known non-chromate type chemical conversion treatments. It is judged that the permanganate potassium chemical conversion treatment is excellent.
- the permanganate potassium chemical conversion treatment is specifically described.
- the pre-treated magnesium alloy part was adjusted to a temperature of around 40 ° C, 0.;! ⁇ 0.3% soaked in a 3% hydrated citrate aqueous solution for 15-60 seconds, finely etched, and then ion exchange Wash with water.
- an aqueous solution containing potassium permanganate 1.5 to 3.0%, acetic acid 0.7 to 1.5%, hydrated sodium acetate 0.3 to 1.0% Is prepared at a temperature of 40 to 50 ° C., and the magnesium alloy part described above is preferably crushed by 0.5 to; and then washed with water.
- This chemical conversion treatment method is an improvement of the technique disclosed in Japanese Patent Application Laid-Open No. 2001-123274 and the like described above in order to improve the injection joining force through trial and error. This is dried for 5 to 20 minutes in a warm air drier at a temperature of 80 to 90 ° C. By this treatment, a thin layer mainly composed of manganese oxide is formed on the surface of the magnesium alloy part.
- the magnesium alloy component is finely etched by penetrating into the weakly acidic aqueous solution for a very short time.
- the surface satisfies the requirements (1) to (3) necessary for the injection joining described above, obtains a strong injection joining force, and has excellent corrosion resistance. It comes to have.
- the resin composition constituting the present invention consists of a resin component composition containing PPS 70 to 97% by mass and polyolefin resin 3 to 30% by mass. % And a resin composition containing 5 to 20% by mass of a polyolefin resin.
- PPS polyolefin resin
- the resin composition constituting the present invention consists of a resin component composition containing PPS 70 to 97% by mass and polyolefin resin 3 to 30% by mass. % And a resin composition containing 5 to 20% by mass of a polyolefin resin.
- the PPS is less than 70% by mass or exceeds 97% by mass, the resulting composite is inferior in the bondability between the metal part and the resin composition part.
- Any PPS may be used as long as it belongs to the category called PPS, and among them, because of its excellent molding processability when used as a resin composition part, a high-diameter with a diameter of 1 mm and a length of 2 mm is installed.
- a chemical flow tester measurement was performed under the conditions of a measurement temperature of 315 ° C and a load of 98 N (10 kgf). It is preferable that the melt viscosity is 100 to 30,000 boise (P).
- PPS may be substituted with an amino group or a carboxyl group, or may be copolymerized with trichlorobenzene or the like during polymerization.
- the PPS may be a linear one, a branched structure introduced, a heat treated in an inert gas, or the like. Furthermore, PPS reduced impurities such as ions and oligomers by deionization (acid cleaning, hot water cleaning, etc.) before or after heat curing, or by cleaning with an organic solvent such as acetone. It may be one that has been cured by heat treatment in an oxidizing gas after completion of the polymerization reaction.
- the polyolefin resin is an ethylene resin, a propylene resin, or the like that is generally known as a polyolefin resin, and may be a commercially available one. Among them, since it becomes possible to obtain a composite having particularly excellent adhesiveness, a maleic anhydride-modified ethylene copolymer, a glycidyl methacrylate-modified ethylene copolymer, a glycidyl ether-modified ethylene copolymer can be obtained.
- the polymer is an ethylene alkyl acrylate copolymer.
- maleic anhydride-modified ethylene copolymer examples include maleic anhydride graft-modified ethylene polymer, maleic anhydride ethylene copolymer, ethylene acrylate esteru maleic anhydride terpolymer, and the like.
- ethylene acrylate, maleic anhydride terpolymer is preferable because a particularly excellent composite can be obtained.
- Specific examples of the ethylene acrylate ester maleic anhydride terpolymer include “Bondyne (manufactured by Arkema)” and the like.
- Examples of the glycidyl metatalylate-modified ethylene copolymer include glycidyl metatalylate graft-modified ethylene polymer and glycidyl methacrylate-ethylene copolymer. Among them, a particularly excellent composite can be obtained. Therefore, glycidyl metatalylate ethylene copolymer is preferable.
- Specific examples of the glycidyl methacrylate-ethylene copolymer include “Bond First” (manufactured by Sumitomo Chemical Co., Ltd.).
- Examples of the glycidyl ether-modified ethylene copolymer include glycidyl ether graft-modified ethylene copolymer and glycidyl ether ethylene copolymer.
- Specific examples of the ethylene alkyl acrylate copolymer include: Rotoril (Arkema) Etc.) ”.
- the resin composition part contains 70 to 97% by mass of PPS and polyolefin series.
- polyfunctional isocyanate compound commercially available non-block type and block type compounds can be used.
- multifunctional non-blocked isocyanate compound examples include 4,4′-diphenyl isocyanate, phenol diisocyanate, bis (4 isocyanate phenolinosulfone), and the like.
- polyfunctional block type isocyanate compound there are two or more isocyanate groups in the molecule, and the isocyanate group is reacted with a volatile active hydrogen compound to be inactive at room temperature.
- the type of polyfunctional block isocyanate compound is not particularly specified.
- isocyanate groups are masked by blocking agents such as alcohols, phenols, ⁇ -force prolatatam, oximes, and active methylene compounds. Has a structure.
- blocking agents such as alcohols, phenols, ⁇ -force prolatatam, oximes, and active methylene compounds.
- Examples of the multifunctional block type isocyanate include “Takenate (manufactured by Mitsui Takeda Chemical Co., Ltd.)”.
- an epoxy resin generally known as a bisphenol ⁇ type, a cresol nopolac type or the like can be used.
- the bisphenol A type epoxy resin for example, “Epicoat (Japan Epoxy Resin Co., Ltd.) )
- Epiclon manufactured by Dainippon Ink and Chemicals
- the composite resin composition of the present invention aims to adjust the difference in linear expansion coefficient between a magnesium part or a magnesium alloy part and the resin composition part and to improve the mechanical strength of the resin composition part.
- the resin component including 70 to 97% by mass of PPS and 3 to 30% by mass of the polyolefin resin
- it further comprises a filler;! To 200 parts by mass, more preferably 10 to 150 parts by mass. It is preferable.
- the filler include fillers such as a fibrous filler, a granular filler, and a plate-like filler.
- fibrous fillers include the ability to mention glass fibers, carbon fibers, aramid fibers, and the like.
- glass fibers include the ability to mention chopped strands having an average fiber diameter of 6 to 14 m. it can.
- the plate-like and granular fillers include calcium carbonate, my strength, glass flakes, glass balloons, magnesium carbonate, silica, talc, clay, and pulverized carbon fiber garamide fibers. .
- the filler is preferably treated with a silane coupling agent or a titanate coupling agent.
- PBT resin composition As the resin composition, those having a PBT composition of 3 to 30% PET and / or polyolefin resin and 70 to 97% are preferable. The same polyolefin resin as described in the section of the PPS resin composition can be used. When the composition ratio of PET and / or polyolefin resin is small! /, And when the resin composition exceeds 30%, the effect on the injection joining force becomes uncertain.
- the resin component composition of PET and / or polyolefin resin is 5 to 20% because the bonding force is particularly strong and stable.
- the ester exchange reaction may occur at a high temperature in the injection cylinder of the injection molding machine, resulting in a decrease in the strength of the resin itself. If it exceeds 30% of the resin composition, gas generation during injection molding will increase, and the possibility of breakage of the runner and the like will worsen, increasing the possibility of breaking the molding cycle.
- Mixing a large amount of filler in order to make the linear expansion coefficient comparable to that of magnesium or magnesium alloy stabilizes the injection joining force over time. This is the same as the PPS system described above.
- the aromatic polyamide resin composition will be described. More preferably, more than 80% of the resin composition is phthalic nylon, and nylon 61 (polyamide obtained from hexamethylene diamine and isophthalic acid) and nylon 6T (hexamethylene diamine and terephthalic acid). (Polyamides obtained from acids) are both included!
- Aromatic nylon is less hygroscopic than aliphatic nylon, meaning that it is suitable for maintaining long-term bonding with metal. Apart from that, similar nylon is mixed as described above. It has been found that the physical properties at the time of quenching are significantly different from those of ordinary thermoplastic resins. That is, when an injection-molded product is obtained for various crystalline thermoplastic resins under predetermined injection molding conditions, most of the resin in the resulting molded product has already crystallized and solidified and is almost in its final stable state. However, it is strange that aromatic nylon, especially aromatic nylon mixed with similar polymers, will remain plastic for several tens of seconds immediately after release!
- nylon can be pulled out.
- the literature was researched for the polymer chemistry analysis, unfortunately, the present inventors were unable to find the published literature.
- the present inventors believe that if there is a crystalline resin with a slow crystallization rate during quenching, this is a resin suitable for injection joining, and PBT or PPS in accordance with that concept. Has improved. From that perspective, it can be judged that “nylon that can be forcibly removed” is a crystalline resin that is clearly slow to crystallize and solidify upon rapid cooling. Aromatic nylon was actually synthesized, mixed, and tested as a resin for injection joining to magnesium alloys.
- the method for producing a highly corrosion-resistant composite according to the present invention is an injection molding method in which a magnesium part or a magnesium alloy part is inserted into an injection mold, and this injection molding method is performed as follows. Prepare an injection mold, open this mold, and apply the above liquid treatment to one of them. A composite is produced by inserting the magnesium part or magnesium alloy part that has been performed, closing the mold, injecting the thermoplastic resin composition described above, solidifying and then releasing the mold.
- the temperature is preferably 100 ° C or higher, more preferably 120 ° C or higher, because it is excellent in production efficiency of the composite with little influence on the resin strength after solidification.
- the injection temperature, injection pressure, and injection speed are not different from those of ordinary injection molding, but speakingly, the injection speed and injection pressure are high.
- the resulting composite should not be touched by hand as much as possible, especially the magnesium or magnesium alloy parts.
- injection joining it is strictly prohibited to spray a mold release agent on the mold, and it is important that the mold before the insert is completely wiped off with the volatile oil.
- the composite obtained by such measures is not soiled, and a clean integrated composite can be obtained if care is taken even in the annealing process.
- Chemical conversion treatment is performed by immersing the magnesium component obtained in the above step or a composite of the magnesium alloy component and the resin composition in a commercially available chemical conversion solution for magnesium alloy.
- the integrated composite has already been subjected to potassium permanganate conversion treatment developed by the present inventors for injection joining, and the surface is covered with a thin layer mainly composed of manganese dioxide.
- the experiment confirmed whether the Nodori force S and the chemical conversion treatment applied to such a surface were effective. This is because, in the light of ordinary chemical knowledge, even if manganese dioxide is immersed in a manganese phosphate aqueous solution, it does not react in particular. However, as a result of the experiment, the chemical conversion treatment of the second layer was actually clearly seen in the corrosion resistance test.
- the products that appeared to be particularly excellent in corrosion resistance were those treated with a manganese phosphate-based chemical conversion treatment solution containing calcium ions and those treated with a commercially available silicon-based chemical conversion treatment solution.
- the corrosion resistance is improved as a result of the chemical conversion film becoming thicker (thick) by reacting with the manganese dioxide layer and stacking on the manganese dioxide layer, or the manganese dioxide layer is thin and contains some ions.
- an improvement effect was recognized in all of the chemical conversion treatment solutions for the commercially available magnesium alloy and the chemical conversion treatment solutions prepared by the inventors from the examples.
- the technique described in JP-A-11-131255 was employed. This describes calcium nitrate, manganese carbonate, and an aqueous solution in which phosphoric acid and a very small amount of sodium chlorate are dissolved (actually, manganese carbonate cannot be dissolved and becomes a suspension).
- chemical conversion treatment solutions for ordinary manganese phosphate or silicon-based magnesium alloys are commercially available from a number of companies. In this embodiment, a commercial product of Meltex (Saitama Prefecture Saitama) is used. did. There are also many other technologies that are published in patent gazettes regarding chemical conversion treatment, and some of them have been implemented. According to the judgments of the present inventors, the manganese phosphate-based chemical conversion treatment or the silicon-based chemical conversion treatment containing force calcium described in the examples of the present invention is superior to the others.
- the composite obtained by integrating the magnesium part or the magnesium alloy part and the resin composition obtained in the above process can be used as it is, but it is applied to form an exterior part.
- a paint capable of coating a resin composition as well as a magnesium part or a magnesium alloy part a baked paint for metal coating can be preferably used. If the temperature is about 200 ° C on the resin composition side, there is no problem at all! / And it has heat resistance! /, So there is no problem with using such high-temperature baking type paints.
- magnesium parts or magnesium alloy parts are to be painted, commercially available paints for coating magnesium alloys can be used.
- paints marketed for magnesium alloys there are urethane paints and acrylic urethane paints, etc., and these have a low baking temperature of 120 ° C or less.
- a dryer can be used.
- coating these on the PBT resin composition or PPS resin composition may result in insufficient adhesion to the resin composition.
- the present invention that is, by improving bondability, improving efficiency, expanding the application range, etc., it is possible to reduce the weight of mopile electronic devices and home appliances, reduce the weight of in-vehicle devices and parts,
- the power S contributes to the lightening of arms and legs of the robot and the supply of parts and housing, weight reduction, and productivity in many other fields.
- the high corrosion-resistant composite produced by the production method of the present invention has been integrated into a magnesium part or magnesium alloy part and the resin composition without being easily peeled off. It was possible to make it excellent in corrosion resistance.
- a resin component composition containing PPS as a main component, a resin component composition containing PBT as a main component, or both nylon 61 and nylon 6T Highly corrosion-resistant composites with excellent corrosion resistance can be easily obtained by injection-bonding using a thermoplastic resin composition having an aromatic polyamide resin composition and containing a chemical conversion treatment. It was possible to manufacture reliably.
- FIG. 1 is a structural diagram schematically showing a cross section of an injection mold.
- the injection mold 10 has a magnesium part or a magnesium alloy part 1 processed into a predetermined shape inserted into one mold 2, and a resin composition 4 is injected into the mold 2 through a pin gate 5.
- the composite 7 is formed.
- a fine recess is formed on the surface of the magnesium component or magnesium alloy component 1.
- the fine concave portion forms a joint surface 6 and fixes the resin composition 4 to the joint surface 6.
- FIG. 2 is an external view showing the composite 7 after bonding. That is, the composite 7 shown in FIG. 2 is obtained by integrating the magnesium part or the magnesium alloy part 1 and the resin composition 4 by the joint surface 6.
- FIG. 1 and FIG. 2 are used as a common thing of each Example mentioned later.
- various joint strengths produced in connection with the present invention are shown by measured values of shear fracture strength, and the effectiveness of the present invention is confirmed.
- XRD X-ray diffraction analyzer
- This electron microscope was mainly used to observe the surface of the part.
- This electron microscope includes a scanning (SEM) electron microscope “S-4800 (product name)” (manufactured by Hitachi, Ltd., Tokyo, Japan) and “JSM-6700F (product name)” (Tokyo, Japan). , Manufactured by JEOL Ltd.) and observed at! ⁇ 2KV.
- a salt spray tester “SPT-90 (product name)” manufactured by Suga Test Instruments Co., Ltd., Tokyo, Japan was used, and 5% salt water was sprayed continuously at a temperature of 35 ° C for 24 hours. Then, it was washed with ion-exchanged water and air-dried to evaluate the corrosion resistance.
- PPS (1) The system was heated to 225 ° C over 2 hours, polymerized at 225 ° C for 2 hours, then heated to 250 ° C over 30 minutes, and further at 250 ° C. Polymerization was carried out in 3 hours. After completion of the polymerization, the mixture was cooled to room temperature and the polymer was isolated using a centrifuge. The polymer was repeatedly washed with warm water and dried at 100 ° C. for one day to obtain a PPS having a melt viscosity of 280 boise (P) (hereinafter referred to as PPS (1)).
- PPS (1) a melt viscosity of 280 boise
- This PPS (1) was further cured under a nitrogen atmosphere at a temperature of 250 ° C for 3 hours to obtain a PPS (hereinafter referred to as PPS (2)).
- the melt viscosity of the obtained PPS (2) was 400 boise (P).
- the glass fiber “RES03-TP91 (Nippon Sheet Glass Co., Ltd.)” with an average fiber diameter of 9 mm and a fiber length of 3 mm was removed from the side feeder by a twin screw extruder “TEM-35B (Toshiba Machine Co., Ltd.)”. Addition amount is 20 mass. While supplying so that / 0, and melt-kneaded at a cylinder temperature of 300 ° C, to give pelletized PPS composition (1). The obtained PPS composition (1) was dried at a temperature of 175 ° C for 5 hours.
- PPS (3) The PPS (l) obtained in Preparation Example 1 was cured for 3 hours under an oxygen atmosphere at a temperature of 250 ° C. to obtain PPS (hereinafter referred to as PPS (3)).
- Pelletized PPS composition (2) was obtained by melt-kneading at a cylinder temperature of 300 ° C. The obtained PPS composition (2) was dried at a temperature of 175 ° C for 5 hours.
- PBT resin “Torcon 1100S (manufactured by Toray Industries, Inc.)” and 4.5 kg of PET resin “TR-4550BH (manufactured by Teijin Chemicals)” of 0.5 kg were mixed uniformly with a tumbler. Then, while feeding the glass fiber “RES03-TP91” having an average fiber diameter of 9 m and a fiber length of 3 mm with a twin-screw extruder “TEM-35BJ” so that the addition amount is 30% by mass, PBT resin composition was obtained by melt-kneading at a cylinder temperature of 270 ° C and pelletizing. The PBT composition (1) was dried at 140 ° C for 3 hours.
- the glass fiber “RES03-TP91 (Nippon Sheet Glass Co., Ltd.)” with an average fiber diameter of 9 mm and a fiber length of 3 mm was removed from the side feeder by a twin screw extruder “TEM-35B (Toshiba Machine Co., Ltd.)”. Addition amount is 30 mass. While supplying so that / 0, and melt-kneaded at a cylinder temperature of 270 ° C, to give pelletized PBT composition (3). The obtained PBT composition (3) was dried at a temperature of 150 ° C for 5 hours.
- Nylon 61 a polyamide from hexamethylenediamine and isophthalic acid
- Nylon 6T a polyamide from hexamethylenediamine and terephthalic acid
- Nylon 66 0.5 kg
- nylon 61 lKg
- nylon 6T 2.5 kg
- the mixture was melt kneaded and pelletized at a cylinder temperature of 280 ° C. Drying was carried out at a temperature of 80 ° C. for 4 hours to obtain an aromatic polyamide composition (1).
- the final treatment is wet buffing, and an average metal crystal grain size of 7 m and a thickness of 1.5 mm AZ31B magnesium alloy (manufactured by Nippon Metal Co., Ltd.) is purchased. . Cut into 8 mm rectangular pieces to form magnesium alloy pieces that are magnesium alloy parts 1. A hole is made at the end of this magnesium alloy piece, and copper wires coated with chlor chloride are passed through dozens, and the copper wire is bent and processed so that the magnesium alloy pieces do not overlap each other, and all can be suspended at the same time. I did it.
- a commercially available magnesium alloy degreasing agent "Cleaner 160 (manufactured by Meltex)" was poured into water to prepare an aqueous solution having a temperature of 75 ° C and a concentration of 10%.
- the magnesium alloy piece was immersed in this for 5 minutes and washed with water.
- a 1% hydrated citrate aqueous solution with a temperature of 40 ° C was prepared in another tank, and a magnesium alloy piece was immersed in this for 4 minutes and washed thoroughly with water. Black smut was attached.
- an aqueous solution containing 1% sodium carbonate at a temperature of 65 ° C.
- the remaining magnesium alloy piece was taken out, and the one with a hole was picked with a glove so that oil and the like would not adhere to it, and inserted into an injection mold at a temperature of 140 ° C.
- the mold was closed and the PPS composition (1) obtained in Preparation Example 1 was injected at an injection temperature of 310 ° C. and injection-bonded.
- the mold was released to obtain 20 integrated composites as shown in FIG.
- the size of the resin part was 10 mm X 45 mm X 5 mm, and the joint surface 6 was 10 mm X 5 mm 0.5 ⁇ 5 «.
- On the day of molding four pieces were subjected to a tensile fracture test, and the average shear fracture strength was 25. OMPa.
- 5 pieces that were annealed by putting them in a hot air dryer at 170 ° C for 1 hour were subjected to a tensile test one day later.
- the average shear breaking force was 24.2 MPa. .
- Example 1 In exactly the same manner as in Example 1, AZ31B magnesium alloy was used, pretreated, finely etched, and subjected to chemical conversion treatment. Further, in exactly the same manner as in Example 1, it was inserted into an injection mold, PPS composition (1) was injected and released, and the integrated composite shown in FIG. 2 was obtained and annealed on the same day. 10 complexes were obtained. Next, the resin part of the integrated composite is sandwiched by clips so that it can be hung, and the commercially available chemical treatment solution for silicon-based magnesium alloys “Magnet SI-5920 (Meltex)” is diluted according to the manufacturer's instructions. The composite obtained by integrating the aqueous solution at a temperature of 50 ° C. was immersed for 1.5 minutes, washed with ion-exchanged water, and dried at a temperature of 90 ° C. for 15 minutes.
- the integrated composite was painted with “Omak / Black (manufactured by Ohashi Chemical Co., Ltd.)” at a thickness of 10 in, dried at 100 ° C. for 1 hour, and then “OMAC / "Silver Metallic” was applied at a thickness of 10 inches, and then baked at a temperature of 170 ° C for 30 minutes. That is, in this example, a commercially available silicon-based chemical conversion treatment agent is used for chemical conversion treatment after integration. Four days after painting and baking, scratches exactly the same as in Example 1 were applied to the coating film with a cutter knife and set in a salt spray tester.
- Example 2 In exactly the same manner as in Example 1, AZ31B magnesium alloy was used, pretreated, finely etched, and subjected to chemical conversion treatment. Further, in exactly the same manner as in Example 1, it was inserted into an injection mold, PPS composition (1) was injected and released from the mold, and an integrated composite as shown in FIG. 2 was obtained. 10 composites were obtained. Next, the resin part of the integrated composite can be hung between clips to form a commercially available manganese phosphate-based magnesium alloy chemical.
- the treatment solution “Magtreat MG-5901 (Meltex)” was diluted as instructed by the manufacturer, the aqueous solution was set at a temperature of 50 ° C., the composite was immersed for 3 minutes, washed with ion-exchanged water and air-dried.
- this composite was painted with “Omak / Black (Ohashi Chemical Co., Ltd.)” at a thickness of 10 m, dried at 100 ° C. for 1 hour, and then “Omak / Silver Metallic”. Was applied at a thickness of 10 ⁇ and then baked at a temperature of 170 ° C for 30 minutes. That is, in this example, a commercially available manganese phosphate chemical conversion treatment agent is used for chemical conversion treatment after integration. Four days after painting and baking, scratches were applied to the coating film in the same manner as in Example 1 with a cutter knife and set in a salt spray tester.
- salt water spray was performed at a temperature of 35 ° C for 24 hours, washed with ion-exchanged water, wiped with a paper napkin, and air-dried.
- the paint film on the side of the cut scratches was slightly lifted, but the wrinkles spread from the scratches.
- the shear fracture strength was 16.2 MPa.
- Example 2 In exactly the same manner as in Example 1, AZ31B magnesium alloy was used, pretreated, finely etched, and subjected to chemical conversion treatment. Further, in exactly the same manner as in Example 1, it was inserted into an injection mold, PPS composition (1) was injected and released, and the integrated composite shown in FIG. 2 was obtained and annealed on the same day. 10 complexes were obtained. Next, the resin part of the integrated composite was sandwiched between clips so that it could be hung. Meanwhile, an aqueous solution containing 1.52% hydrated calcium nitrate, 0.21% manganese carbonate, 1.8% 80% phosphoric acid and 0.04% sodium chlorate at a temperature of 70 ° C, sometimes It was left for 1 hour with stirring!
- Example 1 In exactly the same manner as in Example 1, AZ31B magnesium alloy was used, pretreated, finely etched, and subjected to chemical conversion treatment. Further, in exactly the same manner as in Example 1, it was inserted into an injection mold, PPS composition (1) was injected and released, and the integrated composite shown in FIG. 2 was obtained and annealed on the same day. 10 complexes were obtained. Next, the resin part of the integrated composite was sandwiched between clips so that it could be hung. An aqueous solution containing 2.5% hydrated manganese phosphate, 2.0% 80% phosphoric acid, and 2.0% triethylamine at a temperature of 45 ° C, soaked the product for 3 minutes, and ion-exchanged for 15 seconds. It was washed with water and dried at a temperature of 90 ° C for 15 minutes.
- Example 1 In exactly the same manner as in Example 1, AZ31B magnesium alloy was used, pretreated, finely etched, and subjected to chemical conversion treatment. Further, in exactly the same manner as in Example 1, it was inserted into an injection mold, PPS composition (1) was injected and released, and the integrated composite shown in FIG. 2 was obtained and annealed on the same day. 10 complexes were obtained. Next, “Omak / Black (Ohashi Chemical Co., Ltd.)” was applied to these composites at a thickness of 10 ⁇ , dried at 100 ° C. for 1 hour, and then “Omak / Silver Metallic” was thickened. It was painted at a setting of 10 m and then baked at a temperature of 170 ° C for 30 minutes.
- a magnesium alloy piece was prepared in exactly the same manner as in Example 1, except that the PPS composition (2) obtained in Preparation Example 2 was used instead of the PPS composition (1) obtained in Preparation Example 1. And injection molded to obtain 10 composites. The resulting composite was annealed at a temperature of 170 ° C for 1 hour. In short, this is an experiment using a PPS containing only a small amount of a polyolefin-based polymer and a PPS resin composition containing only a filler. One day later, when this composite was subjected to a tensile test, the shear breaking strength was 13 MPa on an average of 10 pieces. This is only about 50% of the numerical value of Example 1, and the result is the difference in the resin material used.
- the composite was prepared in the same manner as in Example 2, except that the PPS composition (3) obtained in Preparation Example 3 was used instead of the PPS composition (1) obtained in Preparation Example 1. Obtained, annealed, and further processed the complex. Further, the coating was performed in the same manner as in Example 1. Scratch in the same way as in Example 2, using salt water with 5% concentration, spraying salt water at a temperature of 35 ° C for 24 hours, washing with water and drying force S, the coating film on the side of the cut scratches There was no spread of spears from scratches. When this composite was subjected to a tensile fracture test, the shear fracture strength was 19. OMPa.
- a composite was produced in the same manner as in Example 1 except that the PPS composition (4) obtained in Preparation Example 4 was used instead of the PPS composition (1).
- this is an experiment using a PPS resin composition containing a very large amount of polyolefin polymer. However, a large amount of gas was generated during molding, and the molding was interrupted.
- an aqueous solution containing 2% potassium permanganate at a temperature of 45 ° C, 1% acetic acid and 0.5% hydrated sodium acetate was prepared in another tank, and immersed in this for 1 minute. It was washed with water for 15 seconds and then placed in a hot air dryer at 90 ° C for 10 minutes to dry. After drying, the copper wire was pulled out of the magnesium alloy piece on a clean aluminum foil and placed together, wrapped in a plastic bag, and sealed and stored. At this time, work was done so that the fingers did not touch the surfaces to be joined (the end opposite the hole).
- the magnesium alloy piece is taken out, and the one with a hole to prevent oil from adhering to it is picked up with gloves, and the cutting surface is in contact with the resin composition so that the temperature is 140 ° C. Inserted into the mold.
- the mold was closed and the PPS composition (1) obtained in Preparation Example 1 was injected at an injection temperature of 3 10 ° C.
- the mold was released to obtain 20 integrated composites as shown in FIG.
- the size of the resin part was 22 mm X 100 mm X 3 mm, and the joint surface 6 was 1.6 cm 2 of 22 mm X 7.5 mm.
- the average shear fracture strength was 19. OMPa.
- the remaining composite could be hung by holding the resin portion with a clip in exactly the same way as in Example 1, and the commercially available chemical treatment solution for silicon-based magnesium alloys “Magtreat SI-5920 (Meltex Co., Ltd.) ) ”Was diluted according to the manufacturer's instructions, and the composite with the aqueous solution integrated at 50 ° C was immersed for 1.5 minutes, washed with ion-exchanged water, and dried at 90 ° C for 15 minutes.
- a liquid-treated AZ31B piece was prepared and stored in exactly the same manner as in Example 1.
- the magnesium alloy piece was taken out, inserted into an injection mold set at a temperature of 140 ° C, the mold was closed, and the PBT composition (1) obtained in Preparation Example 5 was injected at an injection temperature of 280 ° C. .
- the mold was released to obtain 20 integrated composites as shown in FIG.
- the size of the resin part was 10 mm X 45 mm X 5 mm, and the joint surface 6 was 0.5 cm 2 of 10 mm X 5 mm.
- On the day of molding it was put into a hot air dryer at 150 ° C. for 1 hour for annealing, and one day later, 5 composites were subjected to a tensile test.
- the average shear breaking strength was 23.2 MPa.
- Example 8 An experiment was performed in exactly the same manner as in Example 8, except that instead of using the PBT composition (1), the PBT composition (2) shown in Preparation Example 6 was used.
- a salt spray test in which the coated article was scratched with a cutter knife was also performed in the same manner as in Example 8. As a result, the film on the side of the scratches attached with the cutter knife hardly lifted up, and the spread of the wrinkles from the scratches was not strong.
- the shear fracture strength was 19.3 MPa.
- Example 8 instead of using the PBT composition (1), an experiment was performed in the same manner as in Example 8, except that the PBT composition (3) shown in Preparation Example 7 was used.
- a salt spray test in which the coated article was scratched with a cutter knife was also performed in the same manner as in Example 8. As a result, the film on the side of the scratches attached with the cutter knife hardly lifted up, and the spread of the wrinkles from the scratches was not strong.
- the shear fracture strength was 19.5 MPa.
- a liquid-treated AZ31B piece was prepared and stored in exactly the same manner as in Example 1.
- the magnesium alloy piece was taken out and inserted into an injection mold set at a temperature of 140 ° C.
- the mold was closed and the aromatic polyamide composition (1) obtained in Preparation Example 8 was injected at an injection temperature of 280 ° C. Ejected.
- the mold temperature was 110 ° C., and 20 integrated composites as shown in FIG. 2 were obtained.
- On the day when all the samples were formed they were put into a hot air drier at a temperature of 150 ° C. for 1 hour for annealing, and one day later, 5 composites were subjected to a tensile test.
- the average shear breaking force is 20. OMPa. It was.
- Example 10 Thereafter, in the same manner as in Example 10, the integrated composite was subjected to chemical conversion treatment, paint baked, and after 3 days of paint baking, the coating film was scratched and subjected to a salt spray test. As a result, the coating film on the side of the cut scratch was not lifted, and no wrinkles spread from the scratch. When this composite was subjected to a tensile fracture test, the shear fracture strength was 17.5 Pa.
- FIG. 1 is a mold configuration diagram schematically showing a process of manufacturing a composite body in which a magnesium part or a magnesium alloy part and a resin composition are integrated.
- FIG. 2 is an external view of a single body schematically showing a composite in which a magnesium part or a magnesium alloy part and a resin composition are integrated.
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Abstract
Description
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008548323A JP4927864B2 (ja) | 2006-12-06 | 2007-12-05 | 高耐食性複合体の製造方法 |
| CN2007800451112A CN101547779B (zh) | 2006-12-06 | 2007-12-05 | 高耐蚀性复合体的制造方法 |
| EP20070850150 EP2103406B1 (en) | 2006-12-06 | 2007-12-05 | Process for production of highly corrosion-resistant composite |
| US12/517,578 US8322013B2 (en) | 2006-12-06 | 2007-12-05 | Method for manufacturing composite with high corrosion resistance |
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| JP2006329410 | 2006-12-06 | ||
| JP2006-329410 | 2006-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2007/073526 Ceased WO2008069252A1 (ja) | 2006-12-06 | 2007-12-05 | 高耐食性複合体の製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8322013B2 (ja) |
| EP (1) | EP2103406B1 (ja) |
| JP (1) | JP4927864B2 (ja) |
| KR (1) | KR101115786B1 (ja) |
| CN (1) | CN101547779B (ja) |
| WO (1) | WO2008069252A1 (ja) |
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- 2007-12-05 US US12/517,578 patent/US8322013B2/en active Active
- 2007-12-05 EP EP20070850150 patent/EP2103406B1/en not_active Not-in-force
- 2007-12-05 CN CN2007800451112A patent/CN101547779B/zh not_active Expired - Fee Related
- 2007-12-05 KR KR1020097011319A patent/KR101115786B1/ko not_active Expired - Fee Related
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9017569B2 (en) | 2007-04-06 | 2015-04-28 | Taisei Plas Co., Ltd. | Copper alloy composite and method for manufacturing same |
| US10350857B2 (en) | 2007-04-13 | 2019-07-16 | Taisei Plas Co., Ltd. | Titanium alloy composite and bonding method thereof |
| WO2008133296A1 (ja) | 2007-04-24 | 2008-11-06 | Taisei Plas Co., Ltd. | ステンレス鋼複合体とその製造方法 |
| WO2010016485A1 (ja) * | 2008-08-06 | 2010-02-11 | 大成プラス株式会社 | 金属合金とポリアミド樹脂組成物の複合体とその製造方法 |
| JP5302315B2 (ja) * | 2008-08-06 | 2013-10-02 | 大成プラス株式会社 | 金属合金とポリアミド樹脂組成物の複合体とその製造方法 |
| JP2012000810A (ja) * | 2010-06-15 | 2012-01-05 | Kyocera Chemical Corp | 電子機器用筐体およびその製造方法 |
| US9166212B2 (en) | 2010-11-26 | 2015-10-20 | Taisei Plas Co., Ltd. | Metal-resin complex and process for production thereof |
| DE112011103922T5 (de) | 2010-11-26 | 2013-09-19 | Taisei Plas Co., Ltd. | Metall-Harz-Verbund und Verfahren zu dessen Herstellung |
| DE112011103922B4 (de) * | 2010-11-26 | 2019-11-14 | Taisei Plas Co., Ltd. | Verfahren zur Herstellung eines Metall-Harz-Verbundes und Lithium-Ionen-Batterie-Deckel |
| JP2019116666A (ja) * | 2017-12-27 | 2019-07-18 | 三井化学株式会社 | 表面粗化マグネシウム合金部材の製造方法 |
| JP7030510B2 (ja) | 2017-12-27 | 2022-03-07 | 三井化学株式会社 | 表面粗化マグネシウム合金部材の製造方法 |
| WO2019217831A1 (en) | 2018-05-11 | 2019-11-14 | Memorial Sloan-Kettering Cancer Center | Methods for identifying antigen-specific t cell receptors |
| JP2023024979A (ja) * | 2019-01-29 | 2023-02-21 | 三井化学株式会社 | アルミニウム系金属樹脂複合構造体、アルミニウム系金属部材、アルミニウム系金属部材の製造方法およびアルミニウム系金属樹脂複合構造体の製造方法 |
| JP7585274B2 (ja) | 2019-01-29 | 2024-11-18 | 三井化学株式会社 | アルミニウム系金属樹脂複合構造体、アルミニウム系金属部材、アルミニウム系金属部材の製造方法およびアルミニウム系金属樹脂複合構造体の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2103406B1 (en) | 2013-11-06 |
| EP2103406A1 (en) | 2009-09-23 |
| KR101115786B1 (ko) | 2012-03-09 |
| JPWO2008069252A1 (ja) | 2010-03-25 |
| KR20090085663A (ko) | 2009-08-07 |
| CN101547779B (zh) | 2013-11-06 |
| JP4927864B2 (ja) | 2012-05-09 |
| US8322013B2 (en) | 2012-12-04 |
| EP2103406A4 (en) | 2012-01-04 |
| CN101547779A (zh) | 2009-09-30 |
| US20100018025A1 (en) | 2010-01-28 |
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