WO2016088888A1 - アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス、ならびにアルミニウム合金線材の製造方法 - Google Patents
アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス、ならびにアルミニウム合金線材の製造方法 Download PDFInfo
- Publication number
- WO2016088888A1 WO2016088888A1 PCT/JP2015/084196 JP2015084196W WO2016088888A1 WO 2016088888 A1 WO2016088888 A1 WO 2016088888A1 JP 2015084196 W JP2015084196 W JP 2015084196W WO 2016088888 A1 WO2016088888 A1 WO 2016088888A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mass
- aluminum alloy
- wire
- alloy wire
- heat treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
- B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/003—Aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/005—Continuous casting of metals, i.e. casting in indefinite lengths of wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/012—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing wire harnesses
- H01B13/01209—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/02—Single bars, rods, wires, or strips
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
Definitions
- the present invention relates to an aluminum alloy wire, an aluminum alloy twisted wire, a covered electric wire and a wire harness used as a wire of an electric wiring body, and a method for producing an aluminum alloy wire.
- the wire material of the electric wiring body As one of means for achieving the weight reduction of such a moving body, for example, it is considered to replace the wire material of the electric wiring body with a lighter aluminum or aluminum alloy instead of the conventionally used copper or copper alloy. It is being advanced.
- the specific gravity of aluminum is about 1/3 of the specific gravity of copper
- the electrical conductivity of aluminum is about 2/3 of the electrical conductivity of copper (pure aluminum is about 66% IACS when pure copper is used as a standard of 100% IACS).
- the cross-sectional area of the aluminum conductor needs to be about 1.5 times the cross-sectional area of the copper conductor.
- the above% IACS represents the electrical conductivity when the resistivity 1.7241 ⁇ 10 ⁇ 8 ⁇ m of universal standard annealed copper (International Annealed Copper Standard) is 100% IACS.
- pure aluminum wires represented by aluminum alloy wires for power transmission lines are generally inferior in tensile durability, impact resistance, bending characteristics, and the like. Therefore, for example, a load that is unexpectedly applied by an operator or industrial equipment during installation work on a vehicle body, a pull at a crimping portion at a connection portion between an electric wire and a terminal, or a repeated loading at a bending portion such as a door portion. It cannot withstand stress.
- materials alloyed by adding various additive elements can increase the tensile strength, it causes a decrease in conductivity due to the solid solution phenomenon of the additive elements in aluminum, and excessive metal in the aluminum.
- the intermetallic compound By forming the intermetallic compound, disconnection due to the intermetallic compound may occur during wire drawing. Therefore, by limiting or selecting the additive element, it is essential that it has sufficient elongation characteristics, so that it is not necessary to break, and further, impact resistance and bending characteristics are improved while ensuring the conventional level of conductivity and tensile strength. It was necessary to let them.
- an aluminum alloy wire having such characteristics for example, an aluminum alloy wire containing Mg and Si is known.
- a typical example of the aluminum alloy wire is a 6000 series aluminum alloy (Al-Mg-Si series alloy).
- a wire is mentioned.
- the 6000 series aluminum alloy wire can be strengthened by subjecting it to a solution treatment and an aging treatment.
- Patent Document 1 As a conventional 6000 series aluminum alloy wire used for an electric wiring body of a moving body, for example, it is described in Patent Document 1 proposed by the present applicant.
- the aluminum alloy wire described in Patent Document 1 controls the crystal grain size of the outer peripheral portion and the inside, and in particular, although it is a very fine wire, it has high conductivity, high bending fatigue resistance, appropriate proof strength, and even higher An aluminum alloy wire excellent in extensibility is realized.
- An object of the present invention is to provide an aluminum alloy wire, an aluminum alloy twisted wire, a covered electric wire, and a wire that are used as a wire material of an electric wiring body that has high strength and excellent impact resistance and can be used even for a thin wire and is not easily broken. It is in providing the manufacturing method of a harness and an aluminum alloy wire.
- the present inventors have made various studies, control the heat treatment conditions when producing the aluminum alloy wire, and optimize the crystal grain structure, thereby maintaining excellent tensile strength while maintaining high tensile strength.
- the inventors have found that an aluminum alloy wire can be produced, and have completed the present invention based on this finding.
- the gist configuration of the present invention is as follows. (1) Mg: 0.10 to 1.00 mass%, Si: 0.10 to 1.00 mass%, Fe: 0.01 to 1.40 mass%, Ti: 0 to 0.100 mass%, B : 0 to 0.030 mass%, Cu: 0 to 1.00 mass%, Ag: 0 to 0.50 mass%, Au: 0 to 0.50 mass%, Mn: 0 to 1.00 mass%, Cr : 0 to 1.00 mass%, Zr: 0 to 0.50 mass%, Hf: 0 to 0.50 mass%, V: 0 to 0.50 mass%, Sc: 0 to 0.50 mass%, Sn : 0 to 0.50% by mass, Co: 0 to 0.50% by mass, Ni: 0 to 0.50% by mass, balance: Al and inevitable impurities (crystal grain size of aluminum alloy wire) Ratio of (standard deviation of) / (average grain size of aluminum alloy wire) is 0.57 or less, and (diameter of aluminum alloy wire)
- any of the elements whose lower limit value of the content range is described as “0% by mass” are optionally added as necessary. Means. That is, when the predetermined additive element is “0 mass%”, it means that the additive element is not included.
- the chemical composition is Cu: 0.01 to 1.00% by mass, Ag: 0.01 to 0.50% by mass, Au: 0.01 to 0.50% by mass, Mn: 0.01 to 1.00% by mass, Cr: 0.01-1.00% by mass, Zr: 0.01-0.50% by mass, Hf: 0.01-0.50% by mass, V: 0.01-0. 50% by mass, Sc: 0.01 to 0.50% by mass, Sn: 0.01 to 0.50% by mass, Co: 0.01 to 0.50% by mass and Ni: 0.01 to 0.50% by mass % Aluminum alloy wire according to the above (1) or (2).
- An aluminum alloy wire manufacturing method wherein the solution heat treatment is performed by a two-stage heat treatment of a first step of heating and holding at a temperature of 300 to 400 ° C. and a second step of heating to 500 ° C. or higher. Manufacturing method of alloy wire.
- an aluminum alloy wire, an aluminum alloy twisted wire which is used as a wire of an electric wiring body that has high strength and excellent impact resistance and can be used for a thin wire and is not easily broken. It becomes possible to provide the manufacturing method of a covered electric wire, a wire harness, and an aluminum alloy wire.
- the present invention is particularly useful as a battery cable mounted on a moving body, a harness or a conductor for a motor, and a wiring body for an industrial robot. Furthermore, since the aluminum alloy wire of the present invention has high tensile strength and excellent impact resistance, it is possible to make the wire diameter thinner than that of a conventional wire.
- An aluminum alloy wire of an embodiment of the present invention (hereinafter simply referred to as “this embodiment”) has Mg: 0.10 to 1.00 mass%, Si: 0.10 to 1.00 mass%, Fe: 0 0.01 to 1.40 mass%, Ti: 0 to 0.100 mass%, B: 0 to 0.030 mass%, Cu: 0 to 1.00 mass%, Ag: 0 to 0.50 mass%, Au : 0 to 0.50 mass%, Mn: 0 to 1.00 mass%, Cr: 0 to 1.00 mass%, Zr: 0 to 0.50 mass%, Hf: 0 to 0.50 mass%, V : 0 to 0.50 mass%, Sc: 0 to 0.50 mass%, Sn: 0 to 0.50 mass%, Co: 0 to 0.50 mass%, Ni: 0 to 0.50 mass%, the balance : Al and an inevitable impurity composition, (standard deviation of crystal grain size of aluminum alloy wire) / (average crystal of aluminum alloy wire) The ratio of the diameter) is 0.57 or less, and (
- Mg manganesium
- Si silicon
- the Mg content is 0.10 to 1.00% by mass.
- the Mg content is preferably 0.50 to 1.00% by mass when importance is placed on high strength, and 0.10% by mass or more and 0.50% by mass when conductivity is important. From such a viewpoint, the total content is preferably 0.30 to 0.70% by mass.
- Si is an element having an effect of improving the tensile strength by combining with Mg to form a precipitate.
- Si silicon
- the Si content is preferably 0.50 to 1.00% by mass when importance is attached to high strength, and 0.10% by mass or more and 0.50% by mass when conductivity is important. From such a viewpoint, the total content is preferably 0.30 to 0.70% by mass.
- Fe is an element that contributes to refinement of crystal grains and mainly improves tensile strength by forming an Al—Fe-based intermetallic compound. Fe can only dissolve at 0.05% by mass in Al at 655 ° C. and is even less at room temperature. Therefore, the remaining Fe that cannot be dissolved in Al is Al—Fe, Al—Fe—Si, Al—Fe. -Crystallizes or precipitates as an intermetallic compound such as Si-Mg. This intermetallic compound contributes to the refinement of crystal grains and improves the tensile strength. Moreover, Fe has the effect
- the Fe content is 0.01 to 1.40 mass%, preferably 0.10 to 0.70 mass%, and more preferably 0.10 to 0.45 mass%.
- the aluminum alloy wire of the present embodiment contains Mg, Si and Fe as essential components, but if necessary, any one of Ti and B, Cu, Ag, Au, Mn, Cr , Zr, Hf, V, Sc, Sn, Co, and Ni can be contained.
- Ti titanium is an element having an effect of refining the structure of the ingot at the time of melt casting. If the structure of the ingot is coarse, the ingot cracking in the casting or disconnection occurs in the wire processing step, which is not industrially desirable. If the Ti content is less than 0.001% by mass, the above-mentioned effects cannot be fully exhibited, and if the Ti content exceeds 0.100% by mass, the conductivity tends to decrease. It is. Accordingly, the Ti content is set to 0.001 to 0.100 mass%, preferably 0.005 to 0.050 mass%, more preferably 0.005 to 0.030 mass%.
- B boron
- B is an element having an effect of refining the structure of the ingot at the time of melt casting, like Ti.
- a coarse ingot structure is not industrially desirable because it tends to cause ingot cracking and disconnection in the wire processing step during casting.
- the B content is 0.001 to 0.030 mass%, preferably 0.001 to 0.020 mass%, more preferably 0.001 to 0.010 mass%.
- ⁇ Cu 0.01 to 1.00% by mass>, ⁇ Ag: 0.01 to 0.50% by mass>, ⁇ Au: 0.01 to 0.50% by mass>, ⁇ Mn: 0.01 to 1 .00 mass%, ⁇ Cr: 0.01 to 1.00 mass%> and ⁇ Zr: 0.01 to 0.50 mass%>, ⁇ Hf: 0.01 to 0.50 mass%>, ⁇ V : 0.01 to 0.50 mass%>, ⁇ Sc: 0.01 to 0.50 mass%>, ⁇ Sn: 0.01 to 0.50 mass%>, ⁇ Co: 0.01 to 0.50 At least one of ⁇ mass%> and ⁇ Ni: 0.01 to 0.50 mass%> Cu (copper), Ag (silver), Au (gold), Mn (manganese), Cr (chromium) Zr (zirconium), Hf (hafnium), V (vanadium), Sc (scandium), Sn (tin), Co (cobalt) and Ni (Nickel) is an element
- the total content of these elements is preferably 2.00% by mass or less. Since Fe is an essential element in the aluminum alloy wire of the present invention, the total content of Fe, Ti, B, Cu, Ag, Au, Mn, Cr, Zr, Hf, V, Sc, Sn, Co and Ni is 0. 01 to 2.0% by mass. The content of these elements is more preferably 0.05 to 1.0% by mass. However, when these elements are added alone, the larger the content, the more the compound containing the elements tends to become coarser, which deteriorates the wire drawing workability and easily causes disconnection. The element content is within the range specified above.
- Al and inevitable impurities The balance other than the components described above is Al (aluminum) and inevitable impurities.
- the inevitable impurities referred to here mean impurities in a content level that can be unavoidably included in the manufacturing process. Depending on the content of the inevitable impurities, it may be a factor for reducing the electrical conductivity. Therefore, it is preferable to suppress the content of the inevitable impurities to some extent in consideration of the decrease in the electrical conductivity. Examples of components listed as inevitable impurities include Ga (gallium), Zn (zinc), Bi (bismuth), and Pb (lead).
- the present invention has a ratio of (standard deviation of crystal grain size of aluminum alloy wire) / (average crystal grain size of aluminum alloy wire) of 0.57 or less. And the ratio of (aluminum alloy wire diameter) / (average crystal grain size of aluminum alloy wire) needs to be 10 or more. In this invention, it can have the outstanding impact resistance, maintaining high tensile strength by limiting to such a structure. In the study by the present inventors, it has been found that the ease of deformation of the material is due to the crystal grain size, and when the crystal grain structure is uniformly dispersed, excellent impact resistance can be obtained. I understood.
- the ratio of (standard deviation of crystal grain size of aluminum alloy wire) / (average crystal grain size of aluminum alloy wire) is higher than 0.57, deformation is likely to occur from large crystal grains, and disconnection is likely to occur. It cannot be suitably used for small-diameter electric wires that require impact resistance. Further, when the ratio of (aluminum alloy wire diameter) / (aluminum alloy average crystal grain size) is less than 10, the crystal grain size becomes relatively large in relation to the wire diameter, and the deformation of the material is not uniform. This is because the properties appear remarkably and the impact resistance decreases.
- the “standard deviation of crystal grain size” and “average crystal grain size” can be measured by the following methods.
- the cross section of the test material cut out in parallel so as to include the center line of the wire in the longitudinal direction of the wire is filled with resin, and after mechanical polishing, electrolytic polishing is performed.
- the image can be taken with a 400 ⁇ optical microscope, and the particle size can be measured by a cutting method in accordance with JIS H 0501-1986 (a method for testing the crystal grain size of copper products).
- JIS H 0501-1986 a method for testing the crystal grain size of copper products.
- a straight line having an angle of 45 ° with the longitudinal direction of the wire is drawn on the photographed photo, and the linear distance between each grain boundary intersecting the straight line
- the calculated value obtained by dividing by the photographing magnification was taken as the crystal grain size.
- the crystal grain size of 50 crystal grains can be obtained, and the standard deviation and the average crystal grain size can be calculated from the obtained crystal grain sizes (of 50 crystal grains).
- the crystal grain size (50 pieces) can be measured by adjusting the length and number of straight lines by using a plurality of straight lines.
- Patent Document 1 a wire material of an electric wiring body that exhibits high conductivity, high bending fatigue resistance, appropriate proof stress, and high elongation by controlling the outer peripheral portion and the internal crystal grain structure.
- Patent Document 1 a wire material of an electric wiring body that exhibits high conductivity, high bending fatigue resistance, appropriate proof stress, and high elongation by controlling the outer peripheral portion and the internal crystal grain structure.
- an aluminum alloy wire having a crystal grain structure as in this embodiment it can be realized by controlling the production conditions of the aluminum alloy wire as follows.
- the suitable manufacturing method of the aluminum alloy wire of this embodiment is demonstrated.
- An aluminum alloy wire according to an embodiment of the present invention has Mg: 0.10 to 1.00% by mass, Si: 0.10 to 1.00% by mass, Fe: 0.01 to 1.40% by mass, Ti: 0 to 0.100 mass%, B: 0 to 0.030 mass%, Cu: 0 to 1.00 mass%, Ag: 0 to 0.50 mass%, Au: 0 to 0.50 mass%, Mn: 0 to 1.00 mass%, Cr: 0 to 1.00 mass%, Zr: 0 to 0.50 mass%, Hf: 0 to 0.50 mass%, V: 0 to 0.50 mass%, Sc: 0 to 0.50% by mass, Sn: 0 to 0.50% by mass, Co: 0 to 0.50% by mass, Ni: 0 to 0.50% by mass, balance: Al and aluminum having a composition that is an inevitable impurity After melting and casting the alloy material, hot drawing is performed to form a rough drawn wire, and then wire
- a method of manufacturing an aluminum alloy wire comprising sequentially performing each step of heat treatment, wherein the solution heat treatment is a first step of heating and holding at a temperature of 300 to 400 ° C., and a second step of heating to 500 ° C. or more. It can manufacture by the manufacturing method performed by a two-step heat treatment with a step.
- the aluminum alloy wire of the present embodiment include [1] melting, [2] casting, [3] hot working (groove roll machining, etc.), [4] first wire drawing, [5]
- the production method includes sequentially performing steps of intermediate heat treatment, [6] second wire drawing, [7] solution heat treatment, and [8] aging heat treatment.
- a step of forming a stranded wire or a step of coating a wire with a resin may be provided before or after solution heat treatment or after aging heat treatment. The steps [1] to [8] will be described below.
- Intermediate heat treatment An intermediate heat treatment is applied to the cold-drawn workpiece.
- the heat treatment for softening the drawn wire that has been hardened by processing is preferably maintained at 300 to 450 ° C. for heat treatment.
- the time is not particularly limited as long as soaking is obtained, but it is preferable to set the holding time to 5 hours or less in consideration of productivity.
- Solution heat treatment A solution heat treatment is performed on the cold-drawn workpiece.
- the solution treatment is a process in which compounds such as Mg and Si are dissolved in aluminum.
- the solution heat treatment of the present invention needs to be performed by a two-stage heat treatment of a first step of heating and holding at a temperature of 300 to 400 ° C. and a second step of heating to 500 ° C. or higher. If the heat treatment temperature in the first step is less than 300 ° C., recrystallization will not be sufficient, and non-uniform crystal grain growth will occur in the second step, resulting in variations in crystal grain size and low impact resistance. Become.
- the solution heat treatment of the present invention is performed by a two-step heat treatment of a first step of heating and holding at a temperature of 300 to 400 ° C.
- the upper limit of the heat treatment temperature in the second step is higher than 580 ° C., it tends to be preferentially melted from the crystal grain boundary and the tensile strength and impact resistance tend to be lowered, so that it may be set to 580 ° C. preferable.
- the cooling in the solution heat treatment is preferably performed at an average cooling rate of 10 ° C./s or more up to a temperature of at least 200 ° C.
- the average cooling rate is preferably 15 ° C./s or more, and more preferably 20 ° C./s or more.
- the aging heat treatment is performed in order to make Mg and Si aggregates or precipitates appear.
- the heating temperature in the aging heat treatment is preferably 100 to 250 ° C. If the heating temperature is less than 100 ° C., Mg and Si aggregates or precipitates cannot sufficiently appear, and the tensile strength and conductivity tend to be insufficient. On the other hand, when the heating temperature is higher than 250 ° C., the size of precipitates of Mg and Si becomes too large, so that the electrical conductivity increases, but the tensile strength tends to be insufficient.
- the heating temperature in the aging heat treatment is preferably 100 to 200 ° C. The heating time varies depending on the temperature.
- Heating at a low temperature for a long time and heating at a high temperature for a short time is preferable for improving the tensile strength.
- the short time is good, preferably 15 hours or shorter, more preferably 10 hours or shorter.
- the cooling in the aging heat treatment is preferably as fast as possible in order to prevent variations in characteristics.
- the aging conditions can be appropriately set taking into consideration that the amount of Mg and Si precipitates changes during cooling.
- the wire diameter is not particularly limited and can be appropriately determined according to the application.
- a thin wire for example, it is 0.10 to 0.50 mm ⁇ , and in the case of a medium thin wire, it is 0.50 to 1.50 mm ⁇ .
- the aluminum alloy wire of this embodiment is one of the advantages that it can be used as an aluminum alloy wire by thinning it with a single wire, but it can also be used as an aluminum alloy twisted wire obtained by bundling a plurality of wires, Of the steps [1] to [8] constituting the manufacturing method of the present embodiment described above, a plurality of aluminum alloy wires obtained by sequentially performing the steps [1] to [6] are bundled and twisted together. Later, [7] solution heat treatment and [8] aging heat treatment may be performed.
- the homogenization heat treatment is preferably performed at a heating temperature of 450 ° C. to 600 ° C. and a heating time of 1 to 10 hours, more preferably 500 to 600 ° C.
- the cooling in the homogenization heat treatment is preferably slow cooling at an average cooling rate of 0.1 to 10 ° C./min from the viewpoint of easily obtaining a uniform compound.
- the aluminum alloy wire of the present embodiment can be used as an aluminum alloy wire or an aluminum alloy stranded wire obtained by twisting a plurality of aluminum alloy wires, and further an aluminum alloy wire or an aluminum alloy stranded wire. It can also be used as a covered electric wire having a coating layer on the outer periphery, and in addition, it is used as a wire harness (assembled electric wire) comprising a covered electric wire and a terminal attached to the end of the covered electric wire from which the coating layer has been removed. It is also possible to do.
- the aluminum alloy stranded wire of the present invention is constructed so as not to be broken at a load of 2.94 N (300 gf) by a method for evaluating impact resistance.
- the wire harness of the present invention is crimped to a terminal. It is preferable that the wire is not broken at a load of 4.90 N (500 gf) by a method for evaluating the impact resistance of the electric wire.
- Examples and comparative examples Content shown in Table 1 for Mg, Si, Fe and Al, and Ti, B, Cu, Ag, Au, Mn, Cr, Zr, Hf, V, Sc, Sn, Co, and Ni that are selectively added
- the molten metal was prepared using a Properti-type continuous casting and rolling machine so that the mass was (mass%), and rolled while continuously casting with a water-cooled mold to obtain a bar of about 9.5 mm ⁇ .
- the cooling rate during casting at this time was about 15 ° C./s.
- the first wire drawing was performed, an intermediate heat treatment was performed at 350 ° C. for 2 hours, and the second wire drawing was further performed to a wire diameter of 0.31 mm ⁇ .
- solution heat treatment was performed under the conditions shown in Table 2.
- the wire temperature was measured by winding a thermocouple around the wire.
- an aging heat treatment was performed under the conditions shown in Table 2 to produce an aluminum alloy wire.
- a straight line having an angle of 45 ° with the longitudinal direction of the wire is drawn on the photographed photo, and the linear distance between each grain boundary intersecting the straight line
- the calculated value obtained by dividing by the photographing magnification was taken as the crystal grain size.
- the crystal grain size of 50 crystal grains was obtained by this measurement method, and the standard deviation and the average crystal grain size were calculated from the obtained crystal grain sizes (of 50 crystal grains).
- the crystal grain size (50) was measured by adjusting the length and the number of straight lines by using a plurality of straight lines.
- TS tensile strength
- the aluminum alloy stranded wire 11 after the aging heat treatment has one end 12 fixed and the other end 13 attached with a 300 g weight.
- the length of the stranded wire from one end 12 to the other end 13 is set to 300 mm, and whether or not the stranded wire breaks when it is dropped freely after lifting the weight vertically up to a height of 300 mm is tested to determine whether the wire is broken. evaluated.
- the impact resistance shown in Table 3 is shown as “ ⁇ ” as a pass when the twisted wire is not broken, and “x” as a NG product when the wire is broken.
- Table 3 shows the results of measurement and evaluation of the examples and comparative examples by the above methods.
- an aluminum alloy wire, an aluminum alloy twisted wire, and a coating that have high strength and excellent impact resistance are used as an electric wiring body that can be used for a thin wire and is difficult to break. It becomes possible to provide the manufacturing method of an electric wire and a wire harness, and an aluminum alloy wire.
- the present invention is particularly useful as a battery cable mounted on a moving body, a harness or a conductor for a motor, and a wiring body for an industrial robot. Furthermore, since the aluminum alloy wire of the present invention has high tensile strength and excellent impact resistance, it is possible to make the wire diameter thinner than that of a conventional wire.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
- Non-Insulated Conductors (AREA)
- Insulated Conductors (AREA)
Abstract
Description
(1)Mg:0.10~1.00質量%、Si:0.10~1.00質量%、Fe:0.01~1.40質量%、Ti:0 ~0.100質量%、B:0~0.030質量%、Cu:0~1.00質量%、Ag:0~0.50質量%、Au:0~0.50質量%、Mn:0~1.00質量%、Cr:0~1.00質量%、Zr:0~0.50質量%、Hf:0~0.50質量%、V:0~0.50質量%、Sc:0~0.50質量%、Sn:0~0.50質量%、Co:0~0.50質量%、Ni:0~0.50質量%、残部:Alおよび不可避不純物である組成を有し、(アルミニウム合金線材の結晶粒径の標準偏差)/(アルミニウム合金線材の平均結晶粒径)の比が0.57以下であり、かつ(アルミニウム合金線材の直径)/(アルミニウム合金線材の平均結晶粒径)の比が10以上であることを特徴とするアルミニウム合金線材。なお、上記化学組成に含有範囲が挙げられている元素のうち、含有範囲の下限値が「0質量%」と記載されている元素はいずれも、必要に応じて任意に添加される選択添加元素を意味する。すなわち所定の添加元素が「0質量%」の場合、その添加元素が含まれないことを意味する。
<Mg:0.10~1.00質量%>
Mg(マグネシウム)は、アルミニウム母材中に固溶して強化する作用を有すると共に、その一部はSiと化合して析出物を形成して引張強度を向上させる作用を有する元素である。しかしながら、Mg含有量が0.10質量%未満だと、上記作用効果が不十分であり、また、Mg含有量が1.00質量%を超えると、導電率が低下する。したがって、Mg含有量は0.10~1.00質量%とする。なお、Mg含有量は、高強度を重視する場合には0.50~1.00質量%にすることが好ましく、また、導電率を重視する場合には0.10質量%以上0.50質量%未満とすることが好ましく、このような観点から総合的に0.30~0.70質量%が好ましい。
Si(ケイ素)は、Mgと化合して析出物を形成して引張強度を向上させる作用を有する元素である。Si含有量が0.10質量%未満だと、上記作用効果が不十分であり、また、Si含有量が1.00質量%を超えると、導電率が低下する。したがって、Si含有量は0.10~1.00質量%とする。なお、Si含有量は、高強度を重視する場合には0.50~1.00質量%にすることが好ましく、また、導電率を重視する場合には0.10質量%以上0.50質量%未満とすることが好ましく、このような観点から総合的に0.30~0.70質量%が好ましい。
Fe(鉄)は、主にAl-Fe系の金属間化合物を形成することによって結晶粒の微細化に寄与すると共に、引張強度を向上させる元素である。Feは、Al中に655℃で0.05質量%しか固溶できず、室温では更に少ないため、Al中に固溶できない残りのFeは、Al-Fe、Al-Fe-Si、Al-Fe-Si-Mgなどの金属間化合物として晶出又は析出する。この金属間化合物は、結晶粒の微細化に寄与すると共に、引張強度を向上させる。また、Feは、Al中に固溶したFeによっても引張強度を向上させる作用を有する。Fe含有量が0.01質量%未満だと、これらの作用効果が不十分であり、また、Fe含有量が1.40質量%超えだと、晶出物または析出物の粗大化により伸線加工性が悪くなり、導電率も低下する。したがって、Fe含有量は0.01~1.40質量%とし、好ましくは0.10~0.70質量%、更に好ましくは0.10~0.45質量%とする。
Ti(チタン)は、溶解鋳造時の鋳塊の組織を微細化する作用を有する元素である。鋳塊の組織が粗大であると、鋳造において鋳塊割れや線材加工工程において断線が発生して工業的に望ましくない。Ti含有量が0.001質量%未満であると、上記作用効果を十分に発揮することができず、また、Ti含有量が0.100質量%超えだと導電率が低下する傾向があるからである。したがって、Ti含有量は0.001~0.100質量%とし、好ましくは0.005~0.050質量%、より好ましくは0.005~0.030質量%とする。
B(ホウ素)は、Tiと同様、溶解鋳造時の鋳塊の組織を微細化する作用を有する元素である。鋳塊の組織が粗大であると、鋳造において鋳塊割れや線材加工工程において断線が発生しやすくなるため工業的に望ましくない。B含有量が0.001質量%未満であると、上記作用効果を十分に発揮することができず、また、B含有量が0.030質量%超えだと導電率が低下する傾向がある。したがって、B含有量は0.001~0.030質量%とし、好ましくは0.001~0.020質量%、より好ましくは0.001~0.010質量%とする。
Cu(銅)、Ag(銀)、Au(金)、Mn(マンガン)、Cr(クロム)、Zr(ジルコニウム)、Hf(ハフニウム)、V(バナジウム)、Sc(スカンジウム)、Sn(錫)、Co(コバルト)およびNi(ニッケル)は、いずれも結晶粒を微細化する作用を有する元素であり、さらに、Cu、AgおよびAuは、粒界に析出することで粒界強度を高める作用も有する元素であって、これらの元素の少なくとも1種を0.01質量%以上含有していれば、上述した作用効果が得られ、引張強度および伸びを向上させることができる。一方、Cu、Ag、Au、Mn、Cr、Zr、Hf、V、Sc、Sn、CoおよびNiの含有量のいずれかが、それぞれ上記の上限値を超えると、該元素を含有する化合物が粗大になり、伸線加工性を劣化させるため断線が生じやすく、また、導電率が低下する傾向がある。したがって、Cu、Ag、Au、Mn、Cr、Zr、Hf、V、Sc、Sn、CoおよびNiの含有量の範囲は、それぞれ上記の範囲とする。
上述した成分以外の残部はAl(アルミニウム)および不可避不純物である。ここでいう不可避不純物は、製造工程上、不可避的に含まれうる含有レベルの不純物を意味する。不可避不純物は、含有量によっては導電率を低下させる要因にもなりうるため、導電率の低下を加味して不可避不純物の含有量をある程度抑制することが好ましい。不可避不純物として挙げられる成分としては、例えば、Ga(ガリウム)、Zn(亜鉛)、Bi(ビスマス)、Pb(鉛)などが挙げられる。
本発明は、上記化学組成を有することに加えて、(アルミニウム合金線材の結晶粒径の標準偏差)/(アルミニウム合金線材の平均結晶粒径)の比が0.57以下であり、かつ(アルミニウム合金線材の直径)/(アルミニウム合金線材の平均結晶粒径)の比が10以上であることが必要である。本発明では、このような構成に限定することにより、高い引張強度を保ちつつ、優れた耐衝撃性を有することができる。本発明者らの検討では、材料の変形のしやすさが結晶粒サイズに起因していることを見出し、結晶粒組織が均一に分散している場合において、優れた耐衝撃性が得られることがわかった。(アルミニウム合金線材の結晶粒径の標準偏差)/(アルミニウム合金線材の平均結晶粒径)の比が0.57よりも高い場合、大きな結晶粒から変形が起こりやすく、断線が発生しやすくなり、耐衝撃性が要求される細径電線に好適に用いることができない。また、(アルミニウム合金線材の直径)/(アルミニウム合金の平均結晶粒径)の比が10未満であると、線径との関係で結晶粒径が相対的に大きくなり、材料の変形の不均一性が顕著に現れ、耐衝撃性が低下するからである。なお、「結晶粒径の標準偏差」および「平均結晶粒径」の測定は、以下の方法によって行うことができる。まず、線材長手方向にて線材の中心線を含むように平行に切り出した供試材の断面を樹脂で埋め、機械研磨後、電解研磨を行い、その後、この供試材の断面組織を200~400倍の光学顕微鏡で撮影し、JIS H 0501-1986(伸銅品結晶粒度試験方法)に準じて切断法による粒径測定によって行うことができる。具体的には、測定方法に偏りが出ないようにするため、撮影された写真に線材長手方向と45°の角度を持たせた直線を引き、その直線と交わるそれぞれの粒界間の直線距離を撮影倍率で除して得られた算出値を結晶粒径とした。この測定方法によって、例えば50個の結晶粒の結晶粒径を求め、求めた(50個の結晶粒の)結晶粒径から、標準偏差および平均結晶粒径を算出することができる。また、(50個の)結晶粒径は、複数本の直線を用いるなどして、直線の長さと本数を調節して測定することができる。
本発明の一実施例によるアルミニウム合金線材は、Mg:0.10~1.00質量%、Si:0.10~1.00質量%、Fe:0.01~1.40質量%、Ti:0 ~0.100質量%、B:0~0.030質量%、Cu:0~1.00質量%、Ag:0~0.50質量%、Au:0~0.50質量%、Mn:0~1.00質量%、Cr:0~1.00質量%、Zr:0~0.50質量%、Hf:0~0.50質量%、V:0~0.50質量%、Sc:0~0.50質量%、Sn:0~0.50質量%、Co:0~0.50質量%、Ni:0~0.50質量%、残部:Alおよび不可避不純物である組成を有するアルミニウム合金素材を、溶解、鋳造後に、熱間加工を経て荒引線を形成し、その後、伸線加工を行い、溶体化処理および時効熱処理の各工程を順次行うことを含むアルミニウム合金線材の製造方法であって、溶体化熱処理は、300~400℃の温度に加熱して保持する第1ステップと、500℃以上に加熱する第2ステップとの2段熱処理で行なう製造方法によって製造することができる。
溶解工程では、上述したアルミニウム合金組成になるように各成分の分量を調整した材料を用意し、それを溶解する。
次いで、鋳造輪とベルトを組み合わせたプロペルチ式の連続鋳造圧延機を用いて、溶湯を水冷した鋳型で鋳造し、連続して圧延を行い、例えば直径5~13mmφの適宜の太さの棒材とする。このときの鋳造時の冷却速度は、Fe系晶出物の粗大化の防止とFeの強制固溶による導電率低下の防止の観点から、好ましくは1~20℃/sであるが、これに制限されるものではない。鋳造及び熱間圧延は、ビレット鋳造及び押出法などにより行ってもよい。
次いで、例えば直径5~12.5mmφの適宜の太さの棒材とし、これを冷間で伸線加工する。伸線加工前に表面の皮むきを行う場合もあり表面の清浄化がなされるが、行わなくてもよい。
冷間伸線した加工材に中間熱処理を施す。加工して硬くなった伸線材の柔軟性を取り戻すために軟化させる熱処理として、好ましくは300~450℃に保持する。時間は均熱が得られれば特に制限しないが、生産性を考え5時間以下の保持時間とすることが好ましい。
上記中間熱処理の後、さらに冷間で伸線加工を施す。
冷間伸線した加工材に溶体化熱処理を行う。溶体化とはMg及びSiなどの化合物をアルミニウム中に溶け込ませる工程である。本発明の溶体化熱処理は、300~400℃の温度に加熱して保持する第1ステップと、500℃以上に加熱する第2ステップとの2段熱処理で行なうことが必要である。第一ステップの熱処理温度が300℃未満であると、再結晶が十分になされず、第二ステップにて不均一な結晶粒成長をしてしまい結晶粒径にばらつきが生じて耐衝撃性が低くなる。また、第一ステップの熱処理温度が400℃よりも高いと、結晶粒が大きくなりすぎて第二ステップにて線材の線径との関係で結晶粒径が相対的に大きくなってしまい、やはり耐衝撃性が低くなる。第一ステップの熱処理時間は、結晶粒サイズのばらつきを抑えるため10分以上が好ましく、また、生産性を考えると5時間以内が好ましい。第二ステップの熱処理温度が500℃未満であると溶体化が十分になされず固溶元素による強化が見込めないばかりか、その後の時効熱処理において十分な析出物が得られず強度が低くなる。よって、本発明の溶体化熱処理は、300~400℃の温度に加熱して保持する第1ステップと、500℃以上に加熱する第2ステップとの2段熱処理で行なうこととする。なお、第2ステップの熱処理温度の上限値は、580℃よりも高いと、結晶粒界から優先的に溶融し、引張強度及び耐衝撃性が低くなる傾向があるため、580℃とすることが好ましい。
次いで、時効熱処理を施す。時効熱処理は、Mg及びSiの集合体または析出物を出現させるために行う。時効熱処理における加熱温度は、好ましくは100~250℃である。前記加熱温度が100℃未満であると、Mg及びSiの集合体または析出物を十分に出現させることができず、引張強度および導電率が不足しがちである。また、前記加熱温度が250℃よりも高いと、Mg及びSiの析出物のサイズが大きくなりすぎるため、導電率は上昇するが、引張強度が不足しがちである。時効熱処理における加熱温度は、好ましくは100~200℃である。なお、加熱時間は、温度によって最適な時間が変化する。低温では長時間、高温では短時間の加熱が引張強度を向上させる上で好ましい。生産性を考慮すると短時間が良く、好ましくは15時間以下、更に好ましくは10時間以下である。なお、時効熱処理における冷却は、特性のバラつきを防止するために、可能な限り冷却速度を速くすることが好ましい。しかし、製造工程上、速く冷却できない場合は、冷却中にMg及びSiの析出物量の変化が起こることも考慮に入れて時効条件を適宜設定することができる。
Mg、Si、Fe及びAlと、選択的に添加するTi、B、Cu、Ag、Au、Mn、Cr、Zr、Hf、V、Sc、Sn、Co、Niを、表1に示す含有量(質量%)になるようにプロペルチ式の連続鋳造圧延機を用いて、溶湯を調合し、水冷した鋳型で連続的に鋳造しながら圧延を行い、約9.5mmφの棒材とした。このときの鋳造時の冷却速度は約15℃/sとした。次に、第1伸線加工を施し、350℃、2時間の中間熱処理を施し、さらに0.31mmφの線径まで第2伸線加工を行った。次に、表2に示す条件で溶体化熱処理を施した。中間熱処理及び溶体化熱処理とも、線材に熱電対を巻きつけて線材温度を測定した。溶体化熱処理後に、表2に示す条件で時効熱処理を施し、アルミニウム合金線を製造した。
「結晶粒径の標準偏差」および「平均結晶粒径」の測定は、以下の方法によって行った。まず、線材長手方向にて線材の中心線を含むように平行に切り出した供試材の断面を樹脂で埋め、機械研磨後、電解研磨を行い、その後、この供試材の断面組織を200~400倍の光学顕微鏡で撮影し、JIS H 0501-1986(伸銅品結晶粒度試験方法)に準じて切断法による粒径測定によって行った。具体的には、測定方法に偏りが出ないようにするため、撮影された写真に線材長手方向と45°の角度を持たせた直線を引き、その直線と交わるそれぞれの粒界間の直線距離を撮影倍率で除して得られた算出値を結晶粒径とした。この測定方法によって、例えば50個の結晶粒の結晶粒径を求め、求めた(50個の結晶粒の)結晶粒径から、標準偏差および平均結晶粒径を算出した。また、(50個の)結晶粒径は、複数本の直線を用いるなどして、直線の長さと本数を調節して測定した。
JIS Z 2241:2011に準じて各3本ずつの供試材(アルミニウム合金線)について引張試験を行い、それらの平均値を求めた。従来同様、断面積が小さい細径線に適用しても断線することなく使用可能とするために、高い引張強度が求められていることから、本発明においても200MPa以上を合格レベルとした。
時効熱処理が完了したアルミニウム合金撚線11は、図1に示すように、一端12を固定し、他端13に300gの錘をつけ、一端12から他端13までの撚線長を300mmとし、錘を300mmの高さまで垂直上方に持ち上げた後に自由落下させたときに撚線が断線するか否かを試験し、耐衝撃性を評価した。なお、表3中に示す耐衝撃性は、撚線が断線しなかった場合を合格として「○」、断線した場合をNG品として「×」として示す。
端子圧着されたワイヤーハーネスのアルミ電線21の端子固定部分22を固定し、電線端23に500gの錘をつけ、端子固定部分22から電線端23までの電線長を300mmとし、錘を300mmの高さまで垂直上方に持ち上げた後に自由落下させたときにアルミ電線21が断線するか否かを試験し、耐衝撃性を評価した。なお、表3中に示す耐衝撃性は、電線が断線しなかった場合を合格として「○」、断線した場合をNG品として「×」として示す。
12 アルミニウム合金撚線の一端
13 アルミニウム合金撚線の他端
21 ワイヤーハーネスのアルミ電線
22 ワイヤーハーネスのアルミ電線の端子固定部分
23 ワイヤーハーネスのアルミ電線の電線端
Claims (10)
- Mg:0.10~1.00質量%、Si:0.10~1.00質量%、Fe:0.01~1.40質量%、Ti:0 ~0.100質量%、B:0~0.030質量%、Cu:0~1.00質量%、Ag:0~0.50質量%、Au:0~0.50質量%、Mn:0~1.00質量%、Cr:0~1.00質量%、Zr:0~0.50質量%、Hf:0~0.50質量%、V:0~0.50質量%、Sc:0~0.50質量%、Sn:0~0.50質量%、Co:0~0.50質量%、Ni:0~0.50質量%、残部:Alおよび不可避不純物である組成を有し、(アルミニウム合金線材の結晶粒径の標準偏差)/(アルミニウム合金線材の平均結晶粒径)の比が0.57以下であり、かつ(アルミニウム合金線材の直径)/(アルミニウム合金線材の平均結晶粒径)の比が10以上であることを特徴とするアルミニウム合金線材。
- 前記化学組成が、Ti:0.001~0.100質量%とB:0.001~0.030質量%のうち両方かいずれかひとつを含有する、請求項1に記載のアルミニウム合金線材。
- 前記化学組成が、Cu:0.01~1.00質量%、Ag:0.01~0.50質量%、Au:0.01~0.50質量%、Mn:0.01~1.00質量%、Cr:0.01~1.00質量%、Zr:0.01~0.50質量%、Hf:0.01~0.50質量%、V:0.01~0.50質量%、Sc:0.01~0.50質量%、Sn:0.01~0.50質量%、Co:0.01~0.50質量%およびNi:0.01~0.50質量%のうち、少なくともひとつを含有する、請求項1または2に記載のアルミニウム合金線材。
- 直径が0.10~0.50mmである、請求項1、2または3に記載のアルミニウム合金線材。
- 請求項1~4のいずれか1項に記載のアルミニウム合金線材を複数本撚り合わせてなるアルミニウム合金撚線。
- 前記アルミニウム合金撚線の耐衝撃性を評価する手法にて、荷重2.94N(300gf)にて断線しないことを特徴とする、請求項5に記載のアルミニウム合金撚線。
- 請求項1~4のいずれか1項に記載のアルミニウム合金線材または請求項5に記載のアルミニウム合金撚線の外周に被覆層を有する被覆電線。
- 請求項7に記載の被覆電線と、該被覆電線の、前記被覆層を除去した端部に装着された端子とを備えるワイヤーハーネス。
- 端子圧着された電線の耐衝撃性を評価する手法にて、荷重4.90N(500gf)にて断線しないことを特徴とする、請求項8に記載のワイヤーハーネス。
- Mg:0.10~1.00質量%、Si:0.10~1.00質量%、Fe:0.01~1.40質量%、Ti:0 ~0.100質量%、B:0~0.030質量%、Cu:0~1.00質量%、Ag:0~0.50質量%、Au:0~0.50質量%、Mn:0~1.00質量%、Cr:0~1.00質量%、Zr:0~0.50質量%、Hf:0~0.50質量%、V:0~0.50質量%、Sc:0~0.50質量%、Sn:0~0.50質量%、Co:0~0.50質量%、Ni:0~0.50質量%、残部:Alおよび不可避不純物である組成を有するアルミニウム合金素材を、溶解、鋳造後に、熱間加工を経て荒引線を形成し、その後、伸線加工を行い、溶体化処理および時効熱処理の各工程を順次行うことを含むアルミニウム合金線材の製造方法であって、溶体化熱処理は、300~400℃の温度に加熱して保持する第1ステップと、500℃以上に加熱する第2ステップとの2段熱処理で行なう、アルミニウム合金線材の製造方法。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016562702A JP6782168B2 (ja) | 2014-12-05 | 2015-12-04 | アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス、ならびにアルミニウム合金線材の製造方法 |
| CN201580059392.1A CN107109545B (zh) | 2014-12-05 | 2015-12-04 | 铝合金线材、铝合金绞线、包覆电线、线束以及铝合金线材的制造方法 |
| KR1020177012002A KR102474539B1 (ko) | 2014-12-05 | 2015-12-04 | 알루미늄 합금 선재, 알루미늄 합금연선, 피복전선 및 와이어 하네스, 및 알루미늄 합금 선재의 제조방법 |
| EP15864798.2A EP3228720B1 (en) | 2014-12-05 | 2015-12-04 | Aluminum alloy wire rod, aluminum alloy stranded wire, covered wire and wire harness, and method of manufacturing aluminum alloy wire rod |
| US15/597,753 US10096394B2 (en) | 2014-12-05 | 2017-05-17 | Aluminum alloy wire rod, aluminum alloy stranded wire, covered wire and wire harness, and method of manufacturing aluminum alloy wire rod |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-247327 | 2014-12-05 | ||
| JP2014247327 | 2014-12-05 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/597,753 Continuation US10096394B2 (en) | 2014-12-05 | 2017-05-17 | Aluminum alloy wire rod, aluminum alloy stranded wire, covered wire and wire harness, and method of manufacturing aluminum alloy wire rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016088888A1 true WO2016088888A1 (ja) | 2016-06-09 |
Family
ID=56091823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2015/084196 Ceased WO2016088888A1 (ja) | 2014-12-05 | 2015-12-04 | アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス、ならびにアルミニウム合金線材の製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10096394B2 (ja) |
| EP (1) | EP3228720B1 (ja) |
| JP (1) | JP6782168B2 (ja) |
| KR (1) | KR102474539B1 (ja) |
| CN (1) | CN107109545B (ja) |
| WO (1) | WO2016088888A1 (ja) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106868352A (zh) * | 2017-03-09 | 2017-06-20 | 昆山市长发铝业有限公司 | 一种异型材及其制备方法和应用 |
| JP2017218645A (ja) * | 2016-06-09 | 2017-12-14 | 矢崎総業株式会社 | アルミニウム合金電線及びそれを用いた自動車用ワイヤーハーネス |
| KR101915585B1 (ko) | 2017-04-28 | 2018-11-07 | (주)메탈링크 | 고장력 및 고내열성의 알루미늄합금, 이에 의해 제조된 알루미늄합금선 및 가공송전선 |
| WO2018212412A1 (ko) * | 2017-05-17 | 2018-11-22 | 엘에스전선 주식회사 | 케이블 도체용 알루미늄 합금 |
| US10192649B2 (en) | 2017-03-02 | 2019-01-29 | Hitachi Metals, Ltd. | Aluminum alloy conductor, insulated wire including the conductor, and method for manufacturing the insulated wire |
| US10920306B2 (en) | 2018-05-09 | 2021-02-16 | Hitachi Metals, Ltd. | Aluminum alloy wire rod and producing method thereof |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2981329C (en) * | 2015-12-18 | 2021-04-20 | Novelis Inc. | High-strength 6xxx aluminum alloys and methods of making the same |
| CN113278851A (zh) * | 2015-12-18 | 2021-08-20 | 诺维尔里斯公司 | 高强度6xxx铝合金和其制造方法 |
| JP6684176B2 (ja) * | 2016-07-13 | 2020-04-22 | 古河電気工業株式会社 | アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス |
| JP6927685B2 (ja) * | 2016-10-25 | 2021-09-01 | 矢崎総業株式会社 | アルミニウム素線、並びにそれを用いたアルミニウム電線及びワイヤーハーネス |
| JP6599061B1 (ja) * | 2018-03-27 | 2019-10-30 | 古河電気工業株式会社 | アルミニウム合金材ならびにこれを用いた導電部材、電池用部材、締結部品、バネ用部品および構造用部品 |
| JP6599062B1 (ja) * | 2018-03-27 | 2019-10-30 | 古河電気工業株式会社 | アルミニウム合金材ならびにこれを用いた導電部材、電池用部材、締結部品、バネ用部品および構造用部品 |
| US11559860B2 (en) * | 2018-04-30 | 2023-01-24 | General Cable Technologies Corporation | Welding wires formed from improved aluminum-magnesium alloys |
| KR102517599B1 (ko) | 2018-05-15 | 2023-04-05 | 노벨리스 인크. | 고강도 6xxx 및 7xxx 알루미늄 합금 및 이의 제조 방법 |
| CN108715953A (zh) * | 2018-05-30 | 2018-10-30 | 安徽尼古拉电子科技有限公司 | 一种电缆铝合金材料 |
| CN108538428A (zh) * | 2018-05-30 | 2018-09-14 | 安徽尼古拉电子科技有限公司 | 一种电缆用耐热铝合金材料 |
| CN108707786A (zh) * | 2018-05-30 | 2018-10-26 | 安徽尼古拉电子科技有限公司 | 一种高导电率铝合金材料 |
| RU2760026C1 (ru) * | 2021-06-30 | 2021-11-22 | Акционерное общество "Москабельмет" (АО "МКМ") | Кабель силовой с экструдированными токопроводящими жилами (варианты) и способ его производства |
| WO2023090634A1 (ko) * | 2021-11-22 | 2023-05-25 | 삼원동관(주) | 송전선용 고내열성 알루미늄 합금 도체 및 그 제조 방법 |
| CN116555608B (zh) * | 2023-07-12 | 2023-10-13 | 中铝材料应用研究院有限公司 | 光学铝合金和其制备方法 |
| CN117568677B (zh) * | 2023-12-28 | 2026-01-06 | 长沙经阁新材料有限公司 | 一种耐热良好尺寸稳定的Al-Mg-Si合金及其制备方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004134212A (ja) * | 2002-10-10 | 2004-04-30 | Furukawa Electric Co Ltd:The | 自動車ワイヤハーネス用アルミ電線 |
| WO2012141041A1 (ja) * | 2011-04-11 | 2012-10-18 | 住友電気工業株式会社 | アルミニウム合金線およびそれを用いたアルミニウム合金撚り線、被覆電線、ワイヤーハーネス |
| WO2014155820A1 (ja) * | 2013-03-29 | 2014-10-02 | 古河電気工業株式会社 | アルミニウム合金導体、アルミニウム合金撚線、被覆電線、ワイヤーハーネスおよびアルミニウム合金導体の製造方法 |
| JP2015124409A (ja) * | 2013-12-26 | 2015-07-06 | 住友電気工業株式会社 | アルミニウム合金線材、アルミニウム合金線材の製造方法、及びアルミニウム合金部材 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567853B2 (ja) | 1973-11-02 | 1981-02-20 | ||
| JP4609866B2 (ja) * | 2009-01-19 | 2011-01-12 | 古河電気工業株式会社 | アルミニウム合金線材 |
| CN101994072A (zh) * | 2010-08-17 | 2011-03-30 | 苏州有色金属研究院有限公司 | 改善7系高强铝合金强韧性的热处理方法 |
| US9779849B2 (en) * | 2011-09-05 | 2017-10-03 | Dyden Corporation | Aluminum-based conductive material and electric wire and cable using the same |
| KR20140077737A (ko) * | 2012-12-14 | 2014-06-24 | 현대자동차주식회사 | 알루미늄 전선, 알루미늄 전선 제조방법 및 차량 |
| EP2896708B1 (en) * | 2013-03-29 | 2017-09-13 | Furukawa Electric Co., Ltd. | Aluminum alloy wire rod, alum1inum alloy stranded wire, sheathed wire, wire harness, and method for manufacturing aluminum alloy conductor |
| KR20150092385A (ko) | 2014-02-03 | 2015-08-13 | 씨제이헬스케어 주식회사 | 솔리페나신을 포함하는 안정한 제제 및 이의 제조방법 |
| JP6716191B2 (ja) * | 2014-08-22 | 2020-07-01 | 株式会社トーキン | フェライトコア |
| SG10201408302QA (en) * | 2014-12-11 | 2016-07-28 | Heraeus Materials Singapore Pte Ltd | COATED COPPER (Cu) WIRE FOR BONDING APPLICATIONS |
| SG10201509913XA (en) * | 2015-12-02 | 2017-07-28 | Heraeus Materials Singapore Pte Ltd | Silver alloyed copper wire |
-
2015
- 2015-12-04 WO PCT/JP2015/084196 patent/WO2016088888A1/ja not_active Ceased
- 2015-12-04 CN CN201580059392.1A patent/CN107109545B/zh active Active
- 2015-12-04 KR KR1020177012002A patent/KR102474539B1/ko active Active
- 2015-12-04 JP JP2016562702A patent/JP6782168B2/ja active Active
- 2015-12-04 EP EP15864798.2A patent/EP3228720B1/en active Active
-
2017
- 2017-05-17 US US15/597,753 patent/US10096394B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004134212A (ja) * | 2002-10-10 | 2004-04-30 | Furukawa Electric Co Ltd:The | 自動車ワイヤハーネス用アルミ電線 |
| WO2012141041A1 (ja) * | 2011-04-11 | 2012-10-18 | 住友電気工業株式会社 | アルミニウム合金線およびそれを用いたアルミニウム合金撚り線、被覆電線、ワイヤーハーネス |
| WO2014155820A1 (ja) * | 2013-03-29 | 2014-10-02 | 古河電気工業株式会社 | アルミニウム合金導体、アルミニウム合金撚線、被覆電線、ワイヤーハーネスおよびアルミニウム合金導体の製造方法 |
| JP2015124409A (ja) * | 2013-12-26 | 2015-07-06 | 住友電気工業株式会社 | アルミニウム合金線材、アルミニウム合金線材の製造方法、及びアルミニウム合金部材 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3228720A4 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017218645A (ja) * | 2016-06-09 | 2017-12-14 | 矢崎総業株式会社 | アルミニウム合金電線及びそれを用いた自動車用ワイヤーハーネス |
| US10246762B2 (en) | 2016-06-09 | 2019-04-02 | Yazaki Corporation | Aluminum alloy electric wire and automotive wire harness using the same |
| US10192649B2 (en) | 2017-03-02 | 2019-01-29 | Hitachi Metals, Ltd. | Aluminum alloy conductor, insulated wire including the conductor, and method for manufacturing the insulated wire |
| CN106868352A (zh) * | 2017-03-09 | 2017-06-20 | 昆山市长发铝业有限公司 | 一种异型材及其制备方法和应用 |
| KR101915585B1 (ko) | 2017-04-28 | 2018-11-07 | (주)메탈링크 | 고장력 및 고내열성의 알루미늄합금, 이에 의해 제조된 알루미늄합금선 및 가공송전선 |
| WO2018212412A1 (ko) * | 2017-05-17 | 2018-11-22 | 엘에스전선 주식회사 | 케이블 도체용 알루미늄 합금 |
| US11508493B2 (en) | 2017-05-17 | 2022-11-22 | Ls Cable & System Ltd. | Aluminum alloy for cable conductor |
| US10920306B2 (en) | 2018-05-09 | 2021-02-16 | Hitachi Metals, Ltd. | Aluminum alloy wire rod and producing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3228720B1 (en) | 2019-09-25 |
| JPWO2016088888A1 (ja) | 2017-11-16 |
| US10096394B2 (en) | 2018-10-09 |
| EP3228720A1 (en) | 2017-10-11 |
| CN107109545B (zh) | 2020-05-08 |
| US20170250000A1 (en) | 2017-08-31 |
| EP3228720A4 (en) | 2018-06-20 |
| KR102474539B1 (ko) | 2022-12-06 |
| JP6782168B2 (ja) | 2020-11-11 |
| CN107109545A (zh) | 2017-08-29 |
| KR20170094131A (ko) | 2017-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6782168B2 (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス、ならびにアルミニウム合金線材の製造方法 | |
| JP6499190B2 (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線、ワイヤーハーネスおよびアルミニウム合金線材の製造方法 | |
| JP5607855B1 (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線、ワイヤーハーネスおよびアルミニウム合金線材の製造方法 | |
| JP5607853B1 (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線、ワイヤーハーネスおよびアルミニウム合金線材の製造方法 | |
| US9899118B2 (en) | Aluminum alloy wire rod, alluminum alloy stranded wire, coated wire, wire harness, method of manufacturing aluminum alloy wire rod, and method of measuring aluminum alloy wire rod | |
| JP5607854B1 (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線、ワイヤーハーネスおよびアルミニウム合金線材の製造方法 | |
| KR102474538B1 (ko) | 알루미늄 합금 선재, 알루미늄 합금연선, 피복전선 및 와이어 하네스 및 알루미늄 합금 선재의 제조방법 | |
| JP6678579B2 (ja) | アルミニウム合金線及びアルミニウム合金線の製造方法 | |
| JP6147167B2 (ja) | アルミニウム合金導体、アルミニウム合金撚線、被覆電線およびワイヤーハーネス | |
| JPWO2016088889A1 (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線、ワイヤーハーネス、並びにアルミニウム合金線材の製造方法 | |
| JP6440476B2 (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス、ならびにアルミニウム合金線材の製造方法 | |
| JP2017179545A (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス | |
| WO2018012208A1 (ja) | アルミニウム合金線材、アルミニウム合金撚線、被覆電線およびワイヤーハーネス | |
| US10553327B2 (en) | Aluminum alloy conductor wire, aluminum alloy stranded wire, coated wire, wire harness and method of manufacturing aluminum alloy conductor wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15864798 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2016562702 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 20177012002 Country of ref document: KR Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| REEP | Request for entry into the european phase |
Ref document number: 2015864798 Country of ref document: EP |