EP0853995A1 - Metalloxide enthaltende Spritzgiessmassen zur Herstellung von Metallformkörpern - Google Patents
Metalloxide enthaltende Spritzgiessmassen zur Herstellung von Metallformkörpern Download PDFInfo
- Publication number
- EP0853995A1 EP0853995A1 EP98100066A EP98100066A EP0853995A1 EP 0853995 A1 EP0853995 A1 EP 0853995A1 EP 98100066 A EP98100066 A EP 98100066A EP 98100066 A EP98100066 A EP 98100066A EP 0853995 A1 EP0853995 A1 EP 0853995A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal
- molding
- powder
- hydrogen
- binder
- 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
Links
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
- B22F3/001—Starting from powder comprising reducible metal compounds
-
- 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
-
- 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
-
- 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
- B22F2998/10—Processes characterised by the sequence of their 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
Description
Besonders bevorzugt wird ein Gemisch aus 75 bis 89 Gew.-% Polyoximethylencopolymer, das 2 Mol.-% Butandiolformal als Comonomer enthält und einen Schmelzindex von etwa 45 g/10 min bei 190°C und 2,16 kg Auflagegewicht aufweist, und 11 bis 25 Gew.-% Polybutandiolformal mit einem Molekulargewicht Mn von etwa 20.000 eingesetzt.
(Zusammensetzung in Gramm) Beispiel Nr. | ||||||||||
Eingesetze Oxide | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Fe2O3 9m2/g | 2257 | |||||||||
Fe2O3 20m2/g | 1890 | 2000 | 197 | |||||||
Fe2O3 40m2/g | 1050 | |||||||||
NiO 7 m2/g | 155 | 2264 | 679 | |||||||
Cu2O 9m2/g | 2700 | 2112 | 1974 | |||||||
MoO3 11m2/g | 1890 | |||||||||
WO3 10m2/g | 2721 | |||||||||
SnO2 13m2/g | 423 | 968 | ||||||||
Organische Komponenten | ||||||||||
Polyoximethylen | 653 | 681 | 848 | 567 | 625 | 584 | 560 | 592 | 507 | 684 |
Polybutandiolformal | 53 | 85 | 106 | 106 | 53 | 85 | 101 | 85 | 106 | 90 |
Solsperse 17.000 | 51 | 71 | 92 | 92 | 51 | 82 | 87 | 82 | 92 | 77 |
Sintertemp. in °C, linearer | 700 | 700 | 600 | 850 | 980 | 1450 | 1450 | 820 | 1090 | 1170 |
Schrumpf in % | 41,3 | 44,3 | 54,2 | 42,3 | 42,5 | 49,8 | 49,3 | 42,2 | 32,9 | 41,4 |
Claims (10)
- Formmasse, enthaltend in einem fließfähigen Bindemittel 20 bis 50 Vol.-%, bezogen auf das Gesamtvolumen der Formmasse, eines Pulvers aus einem oder mehreren Metalloxiden und gegebenenfalls nicht mit Wasserstoff reduzierbaren Metallcarbiden und/oder Metallnitriden, wobei mindestens 65 Vol.-% des Pulvers eine Teilchengröße von maximal 0,5 µm und der Rest des Pulvers eine Teilchengröße von maximal 1 µm aufweisen, und mindestens 90 Vol.-% des Pulvers aus mit Wasserstoff reduzierbaren Metalloxiden bestehen.
- Formmasse nach Anspruch 1, dadurch gekennzeichnet, daß mindestens 65 Vol.-% des Pulvers eine BET-Oberfläche von mindestens 5 m2/g aufweisen.
- Formmassse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das fließfähige Bindemittel ein organisches Polymer enthalt.
- Formmasse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sie ein Dispergiermittel für das Pulver enthält.
- Formmasse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß als mit Wasserstoff reduzierbare Metalloxide Fe2O3, FeO, Fe3O4, NiO, CoO, Co3O4, CuO, Cu2O, Ag2O, Bi2O3, WO3, MoO3, SnO, SnO2, CdO, PbO, Pb3O4, PbO2, Cr2O3 oder Gemische davon eingesetzt werden.
- Formmasse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Pulver 1 bis 10 Vol.-% nicht mit Wasserstoff reduzierbare Metalloxide, Metallcarbide, Metallnitride oder deren Gemische mit einer Teilchengröße von maximal 0,5 µm enthält.
- Verwendung von Formmassen nach einem der Ansprüche 1 bis 6 als Spritzgießmassen zur Herstellung von Metallformkörpern.
- Verwendung von mit Wasserstoff reduzierbaren Metalloxiden mit einer Teilchengröße von maximal 0,5 µm zur Herstellung von Spritzgießmassen.
- Verfahren zur Herstellung von Metallformkörpern durch Spritzgießen einer Formmasse nach einem der Ansprüche 1 bis 6 in eine Form, Entfernung des Bindemittels aus dem so erhaltenen Formling und Reduzieren und Sintern des entbinderten Formlings zu einem Metallformkörper in Gegenwart von Wasserstoff.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß das Entfernen des Bindemittels thermisch in einem Schritt mit dem Reduzieren und Sintern durch Aufheizen des Formlings auf die Sintertemperatur in Gegenwart von Wasserstoff erfolgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19700277A DE19700277A1 (de) | 1997-01-07 | 1997-01-07 | Metalloxide enthaltende Spritzgießmassen zur Herstellung von Metallformkörpern |
DE19700277 | 1997-01-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0853995A1 true EP0853995A1 (de) | 1998-07-22 |
EP0853995B1 EP0853995B1 (de) | 2001-11-21 |
Family
ID=7816902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98100066A Expired - Lifetime EP0853995B1 (de) | 1997-01-07 | 1998-01-05 | Metalloxide enthaltende Spritzgiessmassen zur Herstellung von Metallformkörpern |
Country Status (8)
Country | Link |
---|---|
US (1) | US6080808A (de) |
EP (1) | EP0853995B1 (de) |
JP (1) | JPH10298606A (de) |
KR (1) | KR100516081B1 (de) |
AT (1) | ATE209076T1 (de) |
DE (2) | DE19700277A1 (de) |
ES (1) | ES2168690T3 (de) |
TW (1) | TW495532B (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013113880A1 (de) | 2012-02-02 | 2013-08-08 | Basf Se | Thermoplastische pom-masse |
WO2014170242A1 (en) | 2013-04-18 | 2014-10-23 | Basf Se | Polyoxymethylene copolymers and thermoplastic pom composition |
US10961384B2 (en) | 2014-05-21 | 2021-03-30 | Basf Se | Process for improving the flexural toughness of moldings |
WO2021132854A1 (ko) | 2019-12-24 | 2021-07-01 | 코오롱플라스틱 주식회사 | 금속분말 사출 성형용 결합제 조성물 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10014403A1 (de) * | 2000-03-24 | 2001-09-27 | Wolfgang Kochanek | Verfahren zur Fertigung von Metallteilen |
US6641776B1 (en) * | 2000-11-15 | 2003-11-04 | Scimed Life Systems, Inc. | Method for preparing radiopaque surgical implement |
WO2004089563A1 (ja) * | 2003-04-03 | 2004-10-21 | Taisei Kogyo Co., Ltd. | 粉体焼結成形体の製造方法、粉体焼結成形体、粉体射出成形体の製造方法、粉体射出成形体及び粉体射出成形用金型 |
KR100966754B1 (ko) * | 2008-01-31 | 2010-06-29 | 한양대학교 산학협력단 | 환원-소결 일체형 공정을 통한 나노 금속 소결체 제조 방법 |
JP6848521B2 (ja) | 2017-02-24 | 2021-03-24 | セイコーエプソン株式会社 | 金属粉末射出成形用コンパウンド、焼結体の製造方法および焼結体 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4415528A (en) * | 1981-03-20 | 1983-11-15 | Witec Cayman Patents, Limited | Method of forming shaped metal alloy parts from metal or compound particles of the metal alloy components and compositions |
US4604259A (en) * | 1983-10-11 | 1986-08-05 | Scm Corporation | Process for making copper-rich metal shapes by powder metallurgy |
US5190898A (en) * | 1990-08-25 | 1993-03-02 | Basf Aktiengesellschaft | Pourable molding compound containing sinterable powders |
JPH05254945A (ja) * | 1992-03-13 | 1993-10-05 | Hitachi Ltd | 反応焼結セラミックスの製造法 |
US5417917A (en) * | 1991-09-04 | 1995-05-23 | Nihon Millipore Kabushiki Kaisha | Metallic porous membrane and method of manufacture |
US5686676A (en) * | 1996-05-07 | 1997-11-11 | Brush Wellman Inc. | Process for making improved copper/tungsten composites |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4421660A (en) * | 1980-12-15 | 1983-12-20 | The Dow Chemical Company | Colloidal size hydrophobic polymers particulate having discrete particles of an inorganic material dispersed therein |
JP2842536B2 (ja) * | 1988-08-31 | 1999-01-06 | 三菱化学株式会社 | 樹脂組成物 |
-
1997
- 1997-01-07 DE DE19700277A patent/DE19700277A1/de not_active Withdrawn
-
1998
- 1998-01-05 US US09/002,833 patent/US6080808A/en not_active Expired - Lifetime
- 1998-01-05 EP EP98100066A patent/EP0853995B1/de not_active Expired - Lifetime
- 1998-01-05 ES ES98100066T patent/ES2168690T3/es not_active Expired - Lifetime
- 1998-01-05 AT AT98100066T patent/ATE209076T1/de active
- 1998-01-05 DE DE59802182T patent/DE59802182D1/de not_active Expired - Lifetime
- 1998-01-07 TW TW087100140A patent/TW495532B/zh not_active IP Right Cessation
- 1998-01-07 KR KR10-1998-0000178A patent/KR100516081B1/ko not_active IP Right Cessation
- 1998-01-07 JP JP10001570A patent/JPH10298606A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4415528A (en) * | 1981-03-20 | 1983-11-15 | Witec Cayman Patents, Limited | Method of forming shaped metal alloy parts from metal or compound particles of the metal alloy components and compositions |
US4604259A (en) * | 1983-10-11 | 1986-08-05 | Scm Corporation | Process for making copper-rich metal shapes by powder metallurgy |
US5190898A (en) * | 1990-08-25 | 1993-03-02 | Basf Aktiengesellschaft | Pourable molding compound containing sinterable powders |
US5417917A (en) * | 1991-09-04 | 1995-05-23 | Nihon Millipore Kabushiki Kaisha | Metallic porous membrane and method of manufacture |
JPH05254945A (ja) * | 1992-03-13 | 1993-10-05 | Hitachi Ltd | 反応焼結セラミックスの製造法 |
US5686676A (en) * | 1996-05-07 | 1997-11-11 | Brush Wellman Inc. | Process for making improved copper/tungsten composites |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 018, no. 015 (C - 1151) 12 January 1994 (1994-01-12) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013113880A1 (de) | 2012-02-02 | 2013-08-08 | Basf Se | Thermoplastische pom-masse |
WO2014170242A1 (en) | 2013-04-18 | 2014-10-23 | Basf Se | Polyoxymethylene copolymers and thermoplastic pom composition |
US10961384B2 (en) | 2014-05-21 | 2021-03-30 | Basf Se | Process for improving the flexural toughness of moldings |
WO2021132854A1 (ko) | 2019-12-24 | 2021-07-01 | 코오롱플라스틱 주식회사 | 금속분말 사출 성형용 결합제 조성물 |
Also Published As
Publication number | Publication date |
---|---|
ES2168690T3 (es) | 2002-06-16 |
JPH10298606A (ja) | 1998-11-10 |
KR100516081B1 (ko) | 2005-12-06 |
US6080808A (en) | 2000-06-27 |
KR19980070378A (ko) | 1998-10-26 |
TW495532B (en) | 2002-07-21 |
DE59802182D1 (de) | 2002-01-03 |
DE19700277A1 (de) | 1998-07-09 |
EP0853995B1 (de) | 2001-11-21 |
ATE209076T1 (de) | 2001-12-15 |
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