EP1563931A1 - Verfahren zum Verbinden von anorganischen, aus Pulverspritzgussmassen durch Spritzgiessen hergestellten Formkörpern mit nach einem anderen Verfahren als Spritzgiessen hergestellten anorganischen Formkörpern - Google Patents
Verfahren zum Verbinden von anorganischen, aus Pulverspritzgussmassen durch Spritzgiessen hergestellten Formkörpern mit nach einem anderen Verfahren als Spritzgiessen hergestellten anorganischen Formkörpern Download PDFInfo
- Publication number
- EP1563931A1 EP1563931A1 EP05002766A EP05002766A EP1563931A1 EP 1563931 A1 EP1563931 A1 EP 1563931A1 EP 05002766 A EP05002766 A EP 05002766A EP 05002766 A EP05002766 A EP 05002766A EP 1563931 A1 EP1563931 A1 EP 1563931A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inorganic
- injection molding
- shaped body
- powder
- parts
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Definitions
- the present invention relates to a method for connecting at least one of Powder injection molding compounds produced by injection molding first inorganic shaped body with at least one produced by a method other than injection molding second inorganic molded article and the use of this method.
- the moldings produced by the known method have over others Among other things, manufacturing processes have the advantages of offering a wide range of bandwidth of available materials that complex geometries are made can be and that tight tolerances without post-processing (accuracy about +/- 0.3%) and good surfaces can be achieved.
- the object of the present invention is to provide an improved Process for the permanent joining of powder injection molding compounds by injection molding produced inorganic moldings with other methods than Injection molding produced inorganic moldings.
- first a first inorganic molded article is produced by injection molding Powder injection molding materials produced.
- the powder injection molding compounds are, for example as injection-moldable granules containing both an inorganic powder (for Example metal powder), as well as a binder.
- injection molding compound a product from the Catamold® product range of BASF AG, Ludwigshafen, Germany Germany, used.
- Such injection molding compounds are for example from the DE 197 00 277 A1 or DE 40 21 739 A1.
- For injection molding of the first inorganic moldings can be standard machines for thermoplastic injection molding be used. If necessary, the injection molding machine to the Material properties of the powder injection molding compound of the first inorganic molding be adapted, for example by special screw geometries or nozzles, by installing a backflow lock or by increasing the wear protection.
- step b) of the process according to the invention the first inorganic molded body binder removal.
- Debinding is understood to mean the removal of the binder as far as possible from the first inorganic molded article produced by injection molding (Green compact). The debinding method depends on that in the powder injection molding compound contained binder.
- binder systems with thermally decomposable binders in particular To grow. These are made by a thermal debinding process (Melt out or decompose via the gas phase) from the first inorganic Molded body removed.
- Another debinding option is solvent extraction, in which the binder is removed with solvents such as water or acetone.
- the most common method is catalytic debinding, which allows for short debinding times.
- the Catamold® powder injection molding compounds from BASF AG contain polyacetal as a binder.
- polyacetal can be depolymerized in non-molten state in gaseous components and thus remove without residue from the injection molded part. This is made possible by the special chemical structure of the polyacetal.
- Polyacetal unlike polyethylene, is characterized by recurrent carbon-oxygen bonds. At the oxygen atom of this group, acids can attack and split the macromolecule into the basic building blocks CH 2 O (formaldehyde).
- the catalyst used is preferably gaseous nitric acid (> 99%).
- the particular suitability of this chemical reaction for debindering in powder injection molding is to be seen in the conditions under which it takes place.
- the polymer has a melting temperature of about 165 ° C. Debindering takes place well below the melting point at 110 to 140 ° C.
- the reaction proceeds in the form of a front from outside to inside through the part to be debinded. In the reaction, the polymer goes directly from the solid to the gas state. The reaction gas can thus easily escape through the already porous shaped body zones. A pressure build-up and the resulting destruction of the molding can be avoided.
- the resulting monomer has a boiling point of -21 ° C and is thus under degassing conditions in any case gaseous. In principle, a 100% debinding could be achieved in this way.
- the debindered first inorganic shaped body is called a Braunling.
- step c) of the process according to the invention is a sintering process with the assembled first and second inorganic moldings performed.
- the second inorganic molded article is a method other than injection molding produced inorganic shaped body, for example one by press-sintering, Casting, forging, milling or turning manufactured molding.
- sintering is meant a heat treatment process in which the loose powder framework of the debindered first inorganic shaped body (Braunling) to the finished Component compacted and simultaneously with the second inorganic molded body is connected.
- a thermally activated material transport takes place, the leads to a decrease in the specific surface area of the inorganic powder particles.
- the first inorganic shaped body shrinks during sintering in step c) of the invention Process.
- Shaped body Particle contacts between the particles of the first inorganic shaped body and the second inorganic molded article. It creates a cohesive Composite between the two moldings.
- the inventive method thus allows the cost-effective connection of inorganic injection molded articles with inorganic non-injection molded articles in large quantities.
- the first inorganic molded body and the second inorganic molded body can in the present invention before step b) of the method according to the invention or before step c) of the method according to the invention are joined together. If the Moldings are assembled before step b), they go through the together Debinding step b).
- the process steps b) according to the invention are and c) in two different furnaces (debinding and sintering furnace) or one after the other performed in a single oven.
- the joining of the moldings before step b) has the advantage that the brittle Braunling (the debinded first molding) not must be moved individually before performing the sintering process and Thus, a possible breakage of the Braunlings is avoided.
- the inorganic sinterable powder A can be made of any known suitable inorganic sinterable powders are selected. It is preferably made of metal powders, Metal alloy powders, metal carbonyl powders and mixtures thereof.
- metals which may be in powder form are iron, cobalt, Called nickel and silicon. Alloys are, for example, light metal alloys based on aluminum and titanium as well as alloys of copper or bronze. Hard metals such as tungsten carbide, boron carbide or titanium nitride come in combination with metals such as cobalt and nickel into consideration. Suitable powders are, for example in EP-A 0 465 940, EP-A 0 710 516, DE-A 39 36 869, DE-A 40 00 278 and EP-A 0 114,746 and the literature cited therein.
- the particle sizes of the powders are preferably from 0.1 to 50 ⁇ m, more preferably 0.2 to 8 ⁇ m.
- the metal powders, metal alloy powders, metal carbonyl powders can also be used in a mixture.
- component C dispersing aid can be known from Dispergiertosmitteln be selected.
- examples are oligomeric polyethylene oxide having an average molecular weight of 200 to 600, stearic acid, stearic acid amide, Hydroxystearic acid, fatty alcohols, fatty alcohol sulfonates and block copolymers of ethylene and propylene oxide, as well as particularly preferred polyisobutylene.
- Especially Polyisobutylene is preferred in an amount of 1 to 6% by volume, based on the Component A, B and C used.
- thermoplastic compositions may also contain conventional additives and processing aids, the rheological properties of the mixtures during deformation influence favorably.
- the at least one second inorganic molding contains at least a material from the group of low-alloy steels, stainless steels, tool steel, soft magnetic alloys, light metals, heavy metals, copper base materials or precious metals.
- This sintering process is particularly suitable for powder injection molding compounds from the Catamold® product range BASF AG suitable.
- the sintering process needs be tuned to the respective material to be sintered.
- the above Temperature program is taken into account that after debindering in Step b) still a small proportion of residual binder in the first inorganic molding located.
- the maximum to be reached Sintering temperature depends on the material of the first and second inorganic shaped body.
- the sintering process preferably takes place in inert gas or in a vacuum.
- the Inert gas atmosphere or the vacuum are necessary to unwanted prevent chemical reactions during sintering.
- Possible shielding gases are hydrogen, argon or nitrogen or a mixture thereof.
- the sliding aid serves to shrink the first inorganic shaped body during the sintering process without hindrance and without an undesirable in certain places ensure cohesive connection of the moldings.
- the slip aid will Therefore, before the sintering step applied to surface portions of the moldings, the touching each other after being joined, but not firmly connected by sintering but on which the first inorganic molding through the shrinkage during sintering slides along.
- a necessary feature of the slip aid is therefore its sliding action at the maximum sintering temperature (second Holding temperature).
- Preferred slip aids for the process according to the invention are Boron nitride, molybdenum sulfide or molybdenum disulfide.
- a polymer film between certain sixteenzusinternde Surfaces prior to performing the sintering process, a polymer film between certain fauxzusinternde Surfaces inserted.
- the polymer film can have different functions fulfill. You can for a better bond between the first inorganic Shaped body and the second inorganic shaped body, since they have a lower Melting point than the maximum sintering temperature possesses and therefore during the sintering process unfolds an adhesive effect between the moldings. Further can it release carbon, which diffuses into the surfaces of both moldings, the melting temperature is reduced there, and thus sintering closer to the melting temperature allows.
- the polymer film can be made from any known suitable polymer films to be selected. Preferably, it contains a polymer from the group Polyethylene (PE), polypropylene (PP) or polyvinyl chloride (PVC).
- the present invention further includes the use of the invention Method for the production of gear parts, gears, jewelery, levers, nozzles, Covers, pump parts, electric motor parts, ball bearings, valves, parts of weapons, sports equipment, Household appliances, medical devices, tools or parts thereof.
- the use of the method according to the invention is not based on the production limited said workpieces.
- Figure 1 shows in Figure i a section through two moldings, which with the aid of the invention Process are to be firmly connected.
- the first inorganic molded body 1 is an annular workpiece shown in FIG i is present as a green compact, so produced by injection molding from a powder injection molding material was, or is present as a brownling, so is already released.
- the powder injection molding compound For example, was an injection-moldable granules for the production of sintered moldings from a low alloy, case - hardenable steel from Type 8620.
- the second inorganic molded part is for example a forged part of highly alloyed Stole. It has a cylindrical portion 3 whose radius is smaller than the radius of the first inorganic molding 1 is.
- the first shaped body 1 is a debonded Braunling, can after joining the two moldings 1, 2 next, the sintering process be performed.
- a surface 6 of the second molded body is preferably before sintering a polymer film (not shown) which is thus interposed between them Surfaces 6 and 7 of the two moldings 2 and 1, respectively located.
- Figure iii of Figure 1 shows the connected according to the inventive method Shaped body 1, 2 after performing the sintering process. Shaped body 1 is during sintering onto the cylindrical portion 3 of the second molded body 2 "shrunk” and sintered together with this on the surfaces 6, 7. That so manufactured workpiece 8 is for example a gear part.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
Description
- Figur 1
- zeigt schematisch den Ablauf des erfindungsgemäßen Verfahrens in seiner bevorzugten Ausführungsform.
- 1
- erster anorganischer Formkörper
- 2
- zweiter anorganischer Formkörper
- 3
- zylinderförmiger Abschnitt
- 4
- Symmetrielinien
- 5
- Berührungsflächen
- 6
- zusammenzusinternde Oberfläche des zweiten Formkörpers
- 7
- zusammenzusinternde Oberfläche des ersten Formkörpers
- 8
- Werkstück
Claims (10)
- Verfahren zum dauerhaften Verbinden mindestens eines aus Pulverspritzgussmassen durch Spritzgießen hergestellten ersten anorganischen Formkörpers (1) mit mindestens einem nach einem anderen Verfahren als Spritzgießen hergestellten zweiten anorganischen Formkörper (2) mit den Verfahrensschritten:a) Spritzgießen des ersten anorganischen Formkörpers (1) aus Bindemittel enthaltenden Pulverspritzgussmassen,b) Entbindern des ersten anorganischen Formkörpers (1) undc) Durchführen eines Sinterverfahrens mit den aneinandergefügten ersten und zweiten anorganischen Formkörpern (1, 2),
- Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass die Pulverspritzgussmasse zum Spritzgießen des ersten anorganischen Formkörpers (1)i) 40 bis 85 Vol-% mindestens eines anorganischen sinterbaren Pulvers A,ii) 15 bis 60 Vol-% mindestens eines Bindemittels B undiii) 0 bis 5 Vol-% mindestens eines Dispergierhilfsmittels C
- Verfahren gemäß Anspruch 2, dadurch gekennzeichnet, dass das Pulver A ausgewählt ist aus Metallpulvern, Metalllegierungspulvern, Metallcarbonylpulvern und Gemischen davon.
- Verfahren gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der mindestens eine zweite anorganische Formkörper (2) mindestens einen Werkstoff aus der Gruppe niedrig legierte Stähle, rostfreie Stähle, Werkzeugstahl, weichmagnetische Legierungen, Leichtmetalle, Schwermetalle, Kupferbasiswerkstoffe oder Edelmetalle enthält.
- Verfahren gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Sinterverfahren in einem Ofen durchgeführt wird und folgende Schritte umfasst:A) Aufheizen des Ofens mit den zusammengefügten ersten und zweiten anorganischen Formkörpern (1, 2) von Raumtemperatur auf eine erste Haltetemperatur von 300 bis 700°C mit einer Rate zwischen 2 und 10 K/min,B) Halten der ersten Haltetemperatur,C) Aufheizen des Ofens auf eine zweite Haltetemperatur von 1000 bis 1400°C, mit einer Rate zwischen 2 und 10 K/min,D) Halten der zweiten Haltetemperatur undE) Abkühlen des Ofens mit einer Rate zwischen 2 und 20 K/min.
- Verfahren gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass auf mindestens Teilen der Berührungsflächen (5) der zusammengefügten ersten und zweiten anorganischen Formkörper (1, 2) vor dem Durchführen des Sinterverfahrens ein Gleithilfsmittel aufgetragen wird.
- Verfahren gemäß Anspruch 6, dadurch gekennzeichnet, dass das Gleithilfsmittel Bornitrid, Molybdänsulfid oder Molybdändisulfid ist
- Verfahren gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass vor dem Durchführen des Sinterverfahrens eine Polymerfolie zwischen bestimmte zusammenzusinternde Oberflächen (6, 7) eingefügt wird.
- Verfahren gemäß Anspruch 8, dadurch gekennzeichnet, dass die Polymerfolie ein Polymer aus der Gruppe Polyethylen, Polypropylen oder Polyvinylchlorid enthält.
- Verwendung des Verfahrens nach einem der Ansprüche 1 bis 9 zur Herstellung von Getriebeteilen, Zahnrädern, Schmuck, Hebeln, Düsen, Deckeln, Pumpenteilen, Elektromotorenteilen, Kugellagern, Ventilen, Waffenteilen, Sportgeräten, Haushaltsgeräten, medizinischen Geräten, Werkzeugen oder Teilen davon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05002766T PL1563931T3 (pl) | 2004-02-12 | 2005-02-10 | Sposób łączenia nieorganicznych kształtek wytwarzanych z proszkowych mas wtryskowych przez formowanie wtryskowe z nieorganicznymi kształtkami wytwarzanymi innym sposobem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004006954 | 2004-02-12 | ||
DE102004006954A DE102004006954A1 (de) | 2004-02-12 | 2004-02-12 | Verfahren zum Verbinden von anorganischen, aus Pulverspritzgussmassen durch Spritzgießen hergestellten Formkörpern mit nach einem anderen Verfahren als Spritzgießen hergestellten anorganischen Formkörpern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1563931A1 true EP1563931A1 (de) | 2005-08-17 |
EP1563931B1 EP1563931B1 (de) | 2007-04-18 |
Family
ID=34684026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05002766A Active EP1563931B1 (de) | 2004-02-12 | 2005-02-10 | Verfahren zum Verbinden von anorganischen, aus Pulverspritzgussmassen durch Spritzgiessen hergestellten Formkörpern mit nach einem anderen Verfahren als Spritzgiessen hergestellten anorganischen Formkörpern |
Country Status (9)
Country | Link |
---|---|
US (1) | US20050182176A1 (de) |
EP (1) | EP1563931B1 (de) |
JP (1) | JP2005226160A (de) |
AT (1) | ATE359889T1 (de) |
DE (2) | DE102004006954A1 (de) |
ES (1) | ES2285580T3 (de) |
PL (1) | PL1563931T3 (de) |
PT (1) | PT1563931E (de) |
SG (1) | SG114696A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113860883A (zh) * | 2020-06-30 | 2021-12-31 | 比亚迪股份有限公司 | 一种多色陶瓷及其注塑方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7583489B2 (en) * | 2006-05-22 | 2009-09-01 | Andrew Llc | Tungsten shorting stub and method of manufacture |
JP2009215881A (ja) * | 2006-07-05 | 2009-09-24 | Mitsubishi Electric Corp | バルブタイミング調整装置 |
DE102006060338A1 (de) | 2006-12-13 | 2008-06-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Haftfester Metall-Keramik-Verbund und Verfahren zu seiner Herstellung |
US8679598B2 (en) | 2010-10-08 | 2014-03-25 | Guardian Industries Corp. | Vacuum insulated glass (VIG) unit including nano-composite pillars, and/or methods of making the same |
US9162927B2 (en) * | 2011-03-16 | 2015-10-20 | Basf Se | Process for producing metallic or ceramic shaped bodies |
DE102011106950A1 (de) * | 2011-07-08 | 2013-01-10 | Wdt-Wolz-Dental-Technik Gmbh | Verfahren zur Herstellung eines metallischen Körpers aus mindestens zwei optisch unterschiedlichen Metallen |
CN109676141B (zh) * | 2017-12-06 | 2020-10-23 | 全亿大科技(佛山)有限公司 | 异形复杂金属制品的制造方法及异形复杂金属制品 |
JP7567460B2 (ja) * | 2020-12-25 | 2024-10-16 | セイコーエプソン株式会社 | 製品の製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4681733A (en) * | 1984-02-24 | 1987-07-21 | Nitto Electric Industrial Co., Ltd.: Mazda Motor Corporation | Process for fixing alloy powder molding at sintering |
EP0491950A1 (de) * | 1990-07-12 | 1992-07-01 | Seiko Epson Corporation | Verfahren zur herstellung von druckkopfbauteile für nadelpunktanschlagdrucker |
US20020005085A1 (en) * | 1997-07-16 | 2002-01-17 | Macki James M. | Method to form dense complex shaped articles |
DE10127626A1 (de) * | 2001-06-07 | 2002-12-19 | Alliance S A | Verfahren zur Herstellung gebauter Werkstücke |
EP1464874A1 (de) * | 2003-04-04 | 2004-10-06 | Polymer-Chemie GmbH | Verfahren zur Herstellung eines Gangrades |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5487865A (en) * | 1993-04-08 | 1996-01-30 | Corning Incorporated | Method of making complex shaped metal bodies |
JPH08310878A (ja) * | 1995-05-17 | 1996-11-26 | Juki Corp | 焼結体と異種材料体との結合方法 |
US6033788A (en) * | 1996-11-15 | 2000-03-07 | Case Western Reserve University | Process for joining powder metallurgy objects in the green (or brown) state |
US6551551B1 (en) * | 2001-11-16 | 2003-04-22 | Caterpillar Inc | Sinter bonding using a bonding agent |
-
2004
- 2004-02-12 DE DE102004006954A patent/DE102004006954A1/de not_active Withdrawn
-
2005
- 2005-02-03 SG SG200500628A patent/SG114696A1/en unknown
- 2005-02-10 PT PT05002766T patent/PT1563931E/pt unknown
- 2005-02-10 ES ES05002766T patent/ES2285580T3/es active Active
- 2005-02-10 AT AT05002766T patent/ATE359889T1/de not_active IP Right Cessation
- 2005-02-10 EP EP05002766A patent/EP1563931B1/de active Active
- 2005-02-10 DE DE502005000591T patent/DE502005000591D1/de active Active
- 2005-02-10 PL PL05002766T patent/PL1563931T3/pl unknown
- 2005-02-10 JP JP2005033803A patent/JP2005226160A/ja active Pending
- 2005-02-11 US US11/054,939 patent/US20050182176A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4681733A (en) * | 1984-02-24 | 1987-07-21 | Nitto Electric Industrial Co., Ltd.: Mazda Motor Corporation | Process for fixing alloy powder molding at sintering |
EP0491950A1 (de) * | 1990-07-12 | 1992-07-01 | Seiko Epson Corporation | Verfahren zur herstellung von druckkopfbauteile für nadelpunktanschlagdrucker |
US20020005085A1 (en) * | 1997-07-16 | 2002-01-17 | Macki James M. | Method to form dense complex shaped articles |
DE10127626A1 (de) * | 2001-06-07 | 2002-12-19 | Alliance S A | Verfahren zur Herstellung gebauter Werkstücke |
EP1464874A1 (de) * | 2003-04-04 | 2004-10-06 | Polymer-Chemie GmbH | Verfahren zur Herstellung eines Gangrades |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113860883A (zh) * | 2020-06-30 | 2021-12-31 | 比亚迪股份有限公司 | 一种多色陶瓷及其注塑方法 |
CN113860883B (zh) * | 2020-06-30 | 2022-12-09 | 比亚迪股份有限公司 | 一种多色陶瓷及其注塑方法 |
Also Published As
Publication number | Publication date |
---|---|
PL1563931T3 (pl) | 2007-09-28 |
US20050182176A1 (en) | 2005-08-18 |
SG114696A1 (en) | 2005-09-28 |
JP2005226160A (ja) | 2005-08-25 |
ATE359889T1 (de) | 2007-05-15 |
EP1563931B1 (de) | 2007-04-18 |
PT1563931E (pt) | 2007-05-31 |
DE502005000591D1 (de) | 2007-05-31 |
ES2285580T3 (es) | 2007-11-16 |
DE102004006954A1 (de) | 2005-09-01 |
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