WO2003039826A1 - Honeycomb extrusion molding mouth ring - Google Patents
Honeycomb extrusion molding mouth ring Download PDFInfo
- Publication number
- WO2003039826A1 WO2003039826A1 PCT/JP2002/010400 JP0210400W WO03039826A1 WO 2003039826 A1 WO2003039826 A1 WO 2003039826A1 JP 0210400 W JP0210400 W JP 0210400W WO 03039826 A1 WO03039826 A1 WO 03039826A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- die
- honeycomb extrusion
- honeycomb
- cell block
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/346—Manufacture of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
- B28B3/269—For multi-channeled structures, e.g. honeycomb structures
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
- B29C48/3003—Materials, coating or lining therefor
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
Definitions
- the present invention relates to a die for honeycomb extrusion molding.
- a honeycomb extrusion die having a structure in which a groove-shaped slit is provided on a surface by a cell block, and a kneaded material communicating with the slit and a hole is provided on a back surface.
- Such a die for honeycomb extrusion molding adjusts the slit width of each cell block and improves the durability of the die.
- a nickel plating layer of 10 to 70 m is provided on the surface of the cell block body.
- a 5 to 15 m tungsten carbide layer or a hard powder such as SiC, diamond, or CBN is dispersed in the nickel plating film on the surface of the nickel plating layer.
- Surface treatments such as forming a composite plating layer (second coating film) are also being performed.
- the ratio of W to C is apt to change, and the ratio changes the frictional resistance with the extruded clay, so that when the distribution difference of the frictional resistance of the formed film is large, the forming is performed.
- the forming was performed.
- the shape of the molded product was not stable, and the yield was low.
- the hard particles protrude from the surface of the composite plating film, and the friction coefficient with the extruded clay changes depending on the density of the hard particles. If the density distribution difference is large, molding becomes unstable and The shape of the shape was not stable, and the non-defective product ratio was low.
- the clay is partially flowed and adjusted as necessary.
- the present invention has been made in view of such problems of the prior art, and has as its object to eliminate dimensional defects of a die, maintain a stable extrusion frictional force, and improve extrudability and
- An object of the present invention is to provide a honeycomb extrusion die having not only excellent wear resistance but also easy adjustment of the die during extrusion. Disclosure of the invention
- a honeycomb extrusion molding die having a structure in which a groove-like slit is provided on the surface by a cell block and a clay introducing hole communicating with the slit is provided on the back surface, wherein each cell block is Further, there is provided a honeycomb extrusion forming die characterized in that a soft film is formed on a hard film formed on the outermost surface of a slit and a clay introduction hole provided in a cell block main body.
- the soft film preferably has a Pickers hardness of 500 to 150, and a thickness of 2 to 10 m.
- the soft film is more preferably an electroless nickel plating film.
- the hard film is a CVD film containing one or more substances selected from the group consisting of W, WC, W 2 C, W 3 C, or T i C, T i N, It is preferably a CVD or PVD film comprising one or more substances selected from the group consisting of TiCN.
- the hard film is preferably a composite plating film in which a hard powder such as SiC, diamond, or CBN is dispersed in a nickel plating film.
- FIG. 1 is a schematic front view showing an example of a die for honeycomb extrusion molding.
- FIG. 2 is an enlarged front view of part A in FIG.
- FIG. 3 is an enlarged sectional view of a portion A in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- the die of the present invention is a honeycomb extrusion die having a structure in which a groove-shaped slit is provided on the front surface by a cell block and a clay introducing hole communicating with the slit is provided on the back surface.
- the block forms a soft film (for example, an electroless nickel plating film) on the slit provided in the cell block main body and the hard film formed on the outermost surface of the clay introducing hole.
- the die of the present invention eliminates dimensional defects of the die, maintains stable extrusion frictional force, has excellent extrudability and wear resistance, and facilitates adjustment of the die during extrusion. Can be done.
- FIG. 1 is a schematic front view
- FIG. 2 is an enlarged front view of part A in FIG. 1
- FIG. 3 is an enlarged view of part A in FIG. It is sectional drawing.
- the die of the present invention has a structure in which a groove-shaped slit 2 is provided on the surface by a cell block 3 and a clay introduction hole 4 communicating with the slit 2 is provided on the back surface. This is a die 1 for honeycomb extrusion molding.
- Each cell block 3 has a first coating film 12 formed on the surface of the slit 2 and the clay introduction hole 4 provided in the cell block 10 main body, and a first coating film 12 formed on the surface of the first coating film 12.
- a second coating film 14 which is formed and is a hard film for protecting the first coating film 12, and a third coating film which is formed on the surface of the second coating film 14 and is a soft film 1 and 6.
- a third coating which is a soft film, is provided on the surface of the second coating film 14, which is a hard film that protects the first coating film 12.
- Ku is in forming 16
- the die of the present invention can form the third coating film 16 of 10 m or less in size. Dimensional defects can be solved even for bases requiring accuracy of ⁇ 2 Aim.
- the base of the present invention is provided with the third coating on the narrowed portion 6 (see FIG. 3), which is the part where the base is most likely to be worn. Since the film 16 can be formed, a stable extrusion frictional force can be maintained, so that extrudability and abrasion resistance are excellent.
- the narrowed portion 6 is protected by the second coating film even when the third coating film is worn, and the extrudability is affected by the last outlet portion 2. Since the third coating film is large and hard to wear, the third coating film is not easily reduced, so that good formability can be maintained.
- the die according to the present invention has a slit width of each cell block 10 by forming a soft third coating film 16 on the surface of the second coating film 14 which is a hard film. W can be easily adjusted in a short time.
- the thickness a of the entire coating film (first to third coating films) used in the present invention is not particularly limited, but in consideration of the processing difficulty of the base metal mold, 20 to 1 It is preferably 20 / m.
- the first coating film used in the present invention is a base for adjusting the slit width W of each cell block, and is not necessarily formed depending on the hard film formed on the outermost surface.
- a coating film it is preferable to use an electroless nickel plating film because it has appropriate hardness, film formation is relatively easy, and film thickness control is relatively easy.
- the second coating layer used in the present invention is a hard film for protecting the first co one ting film as a base was selected from the group consisting of 1 W, WC, W 2 C , W 3 C CVD or PVD film containing one or more substances selected from the group consisting of T i C, T i N, and T i CN, 3 S i Any of a composite plating film in which a hard powder such as C, diamond, or CBN is dispersed in a nickel plating film can be appropriately selected and used.
- the thickness c of the second coating film is usually preferably 1 to 70 m.
- the third coating film used in the present invention is preferably formed of a material having a Vickers hardness of about 500 to 1500 in order to efficiently correct the dimensional variation of the die before extruding the honeycomb.
- a material having a Vickers hardness of about 500 to 1500 is preferable.
- the thickness d of the third coating film is 2 to 10 in order to exert the effect of the present invention.
- the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.
- a C-450 plate made of stainless steel was machined into a square plate with a thickness of 20 mm and a side length of 200 mm using a grinding machine.
- slits with a width of 150 mm and a depth of 3 mm were formed in a grid pattern at one end face of the square plate at a pitch of 0.9 mm by grinding (see Figs. 2 and 3). Furthermore, holes with a diameter of 9 mm and a depth of 15 mm were formed at the 0.9 mm pitch from the other end face of the square plate at 0.9 mm pitch at the intersections of the slits (one by one).
- Table 1 shows the results of the extrusion length required for adjusting the dimensional variation of the die and the extrusion length during extrusion molding of the honeycomb structure.
- honeycomb extrusion die according to the present invention can be used for extrusion of ceramic honeycomb.
- the honeycomb extrusion forming die of the present invention eliminates dimensional defects of the die and In addition, it maintains stable extrusion frictional force and has not only excellent extrudability and abrasion resistance, but also facilitates adjustment of a die during extrusion.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/451,600 US7094047B2 (en) | 2001-11-05 | 2002-10-07 | Die for extrusion molding of honeycomb |
| DE60234626T DE60234626D1 (de) | 2001-11-05 | 2002-10-07 | Düse zum extrusionsformen von wabenkörpern |
| EP02772977A EP1442859B1 (en) | 2001-11-05 | 2002-10-07 | Die for extrusion molding of honeycomb |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001338823A JP2003136516A (ja) | 2001-11-05 | 2001-11-05 | ハニカム押出成形用口金 |
| JP2001/338823 | 2001-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003039826A1 true WO2003039826A1 (en) | 2003-05-15 |
Family
ID=19153256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2002/010400 Ceased WO2003039826A1 (en) | 2001-11-05 | 2002-10-07 | Honeycomb extrusion molding mouth ring |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7094047B2 (ja) |
| EP (1) | EP1442859B1 (ja) |
| JP (1) | JP2003136516A (ja) |
| CN (1) | CN1232385C (ja) |
| DE (1) | DE60234626D1 (ja) |
| WO (1) | WO2003039826A1 (ja) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4134616B2 (ja) * | 2001-10-02 | 2008-08-20 | 日立金属株式会社 | プレス装置および磁石の製造方法 |
| DE102007027668A1 (de) * | 2007-06-15 | 2008-12-18 | Robert Bosch Gmbh | Extrusionsmundstück zur Herstellung keramischer Wabenkörper |
| US20090110833A1 (en) * | 2007-10-31 | 2009-04-30 | Gala Industries, Inc. | Method for abrasion-resistant non-stick surface treatments for pelletization and drying process equipment components |
| EP2269790B1 (en) * | 2008-03-28 | 2015-01-21 | Hitachi Metals, Ltd. | Die for forming ceramic honeycomb structure |
| CN101780711B (zh) * | 2010-02-23 | 2013-08-28 | 大连塑料研究所有限公司 | 连续直接挤出成型蜂窝板制品的设备 |
| JP5947883B2 (ja) * | 2012-03-29 | 2016-07-06 | イビデン株式会社 | 押出成形用金型、押出成形用金型の製造方法、押出成形装置及びハニカム構造体の製造方法 |
| CN113365791B (zh) | 2019-01-30 | 2024-04-02 | 康宁股份有限公司 | 挤出模头制备方法 |
| CN116710250A (zh) * | 2020-11-30 | 2023-09-05 | 康宁股份有限公司 | 分区涂覆的挤出模头、此类模头的制造方法和陶瓷制品的制造方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0276083A2 (en) * | 1987-01-19 | 1988-07-27 | Ngk Insulators, Ltd. | Extrusion die |
| EP0389253A2 (en) * | 1989-03-23 | 1990-09-26 | Ngk Insulators, Ltd. | A process for the producing of ceramic honeycomb structure-extruding dies |
| US6193497B1 (en) * | 1997-03-10 | 2001-02-27 | Ngk Insulators, Ltd. | Honeycomb extrusion die |
| JP2001172766A (ja) * | 1999-12-16 | 2001-06-26 | Sumitomo Electric Ind Ltd | 被覆摺動部材 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4861626A (en) * | 1979-04-21 | 1989-08-29 | Ngk Insulators, Ltd. | Extrusion die, method of producing the same and method of reclaiming the same |
| JPS55140514A (en) * | 1979-04-21 | 1980-11-04 | Ngk Insulators Ltd | Preparation of mouth piece for extruding and molding honeycomb molding earth discharging foundation |
| US4574459A (en) * | 1983-12-23 | 1986-03-11 | Corning Glass Works | Extrusion die manufacture |
| JP2693716B2 (ja) * | 1994-03-25 | 1997-12-24 | 日本碍子株式会社 | セラミックハニカム押出成形用口金の再生方法 |
| JPH09300326A (ja) * | 1996-05-16 | 1997-11-25 | Denso Corp | ハニカム成形用ダイス及びその製造方法 |
-
2001
- 2001-11-05 JP JP2001338823A patent/JP2003136516A/ja active Pending
-
2002
- 2002-10-07 US US10/451,600 patent/US7094047B2/en not_active Expired - Lifetime
- 2002-10-07 WO PCT/JP2002/010400 patent/WO2003039826A1/ja not_active Ceased
- 2002-10-07 EP EP02772977A patent/EP1442859B1/en not_active Expired - Lifetime
- 2002-10-07 CN CNB028035003A patent/CN1232385C/zh not_active Expired - Fee Related
- 2002-10-07 DE DE60234626T patent/DE60234626D1/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0276083A2 (en) * | 1987-01-19 | 1988-07-27 | Ngk Insulators, Ltd. | Extrusion die |
| EP0389253A2 (en) * | 1989-03-23 | 1990-09-26 | Ngk Insulators, Ltd. | A process for the producing of ceramic honeycomb structure-extruding dies |
| US6193497B1 (en) * | 1997-03-10 | 2001-02-27 | Ngk Insulators, Ltd. | Honeycomb extrusion die |
| JP2001172766A (ja) * | 1999-12-16 | 2001-06-26 | Sumitomo Electric Ind Ltd | 被覆摺動部材 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1442859A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1442859B1 (en) | 2009-12-02 |
| EP1442859A1 (en) | 2004-08-04 |
| US20040052890A1 (en) | 2004-03-18 |
| EP1442859A4 (en) | 2007-03-21 |
| CN1484574A (zh) | 2004-03-24 |
| JP2003136516A (ja) | 2003-05-14 |
| DE60234626D1 (de) | 2010-01-14 |
| US7094047B2 (en) | 2006-08-22 |
| CN1232385C (zh) | 2005-12-21 |
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