WO2005053882A3 - Process for complex transient liquid phase sintering of powder metal - Google Patents

Process for complex transient liquid phase sintering of powder metal Download PDF

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Publication number
WO2005053882A3
WO2005053882A3 PCT/US2004/039720 US2004039720W WO2005053882A3 WO 2005053882 A3 WO2005053882 A3 WO 2005053882A3 US 2004039720 W US2004039720 W US 2004039720W WO 2005053882 A3 WO2005053882 A3 WO 2005053882A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid phase
lubricant
metal powder
sintering
mixture
Prior art date
Application number
PCT/US2004/039720
Other languages
French (fr)
Other versions
WO2005053882A2 (en
Inventor
Richard R Phillips
Ira L Friedman
Original Assignee
Richard R Phillips
Ira L Friedman
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Richard R Phillips, Ira L Friedman filed Critical Richard R Phillips
Publication of WO2005053882A2 publication Critical patent/WO2005053882A2/en
Publication of WO2005053882A3 publication Critical patent/WO2005053882A3/en

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
    • B22F3/10—Sintering only
    • B22F3/1035—Liquid phase sintering
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • 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

Abstract

A process is provided wherein a metal powder of iron or low alloy steel is mixed with a lubricant having a characteristic of becoming liquid under pressure and of evaporating under a sintering temperature and at least one liquid phase former to form a mixture. The mixture is compressed at a pressure sufficient to liquefy and uniformly distribute the lubricant within the compressed mixture with the lubricant effecting a uniform distribution of the liquid phase former on the particles of the metal powder. Upon sintering, the lubricant is evaporated and driven off and a liquid phase sintering of the liquid phase former with the particles of the metal powder occurs to obtain a product having a density of 99+% of theoretical density.
PCT/US2004/039720 2003-11-28 2004-11-22 Process for complex transient liquid phase sintering of powder metal WO2005053882A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/724,248 2003-11-28
US10/724,248 US20050118053A1 (en) 2003-11-28 2003-11-28 Process for complex transient liquid phase sintering of powder metal

Publications (2)

Publication Number Publication Date
WO2005053882A2 WO2005053882A2 (en) 2005-06-16
WO2005053882A3 true WO2005053882A3 (en) 2005-11-03

Family

ID=34620042

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/039720 WO2005053882A2 (en) 2003-11-28 2004-11-22 Process for complex transient liquid phase sintering of powder metal

Country Status (2)

Country Link
US (1) US20050118053A1 (en)
WO (1) WO2005053882A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7892314B2 (en) * 2005-08-26 2011-02-22 Apex Advanced Technologies, Llc Powder metal composition containing micronized deformable solids and methods of making and using the same
US20070077164A1 (en) 2005-10-03 2007-04-05 Apex Advanced Technologies, Llc Powder metallurgy methods and compositions
CN105899315A (en) * 2014-01-22 2016-08-24 Ntn株式会社 Sintered machine part and manufacturing method thereof
CN105033259B (en) * 2015-06-25 2018-02-16 马鞍山市华东粉末冶金厂 A kind of powder metallurgy prepares the method and product of automative seat lift bearing holder (housing, cover)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785801A (en) * 1968-03-01 1974-01-15 Int Nickel Co Consolidated composite materials by powder metallurgy
US3841870A (en) * 1973-03-07 1974-10-15 Carpenter Technology Corp Method of making articles from powdered material requiring forming at high temperature
US3900936A (en) * 1972-10-31 1975-08-26 Parker Pen Co Cemented ferrochrome material
US4002474A (en) * 1975-07-31 1977-01-11 H. L. Blachford Limited Lubricants for powdered metals
US4098608A (en) * 1975-11-12 1978-07-04 B.S.A. Sintered Components Limited Metal powder compositions
US4106932A (en) * 1974-07-31 1978-08-15 H. L. Blachford Limited Lubricants for powdered metals, and powdered metal compositions containing said lubricants
US5538684A (en) * 1994-08-12 1996-07-23 Hoeganaes Corporation Powder metallurgy lubricant composition and methods for using same
US5744433A (en) * 1994-06-02 1998-04-28 Hoganas Ab Metal powder composition for warm compaction and method for producing sintered products
US6235076B1 (en) * 1997-03-19 2001-05-22 Kawasaki Steel Corporation Iron base powder mixture for powder metallurgy excellent in fluidity and moldability, method of production thereof, and method of production of molded article by using the iron base powder mixture

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618473A (en) * 1985-06-14 1986-10-21 General Motors Corporation Iron powder article having improved toughness
SE518986C2 (en) * 2000-04-28 2002-12-17 Metals Process Systems Method of sintering carbon steel using binder as carbon source
DE60131172T2 (en) * 2000-07-12 2008-08-14 Utron Inc. DYNAMIC COMPACTION OF POWDERS USING A PULSED ENERGY SOURCE
US6537489B2 (en) * 2000-11-09 2003-03-25 Höganäs Ab High density products and method for the preparation thereof
US6887295B2 (en) * 2002-10-25 2005-05-03 Hoeganaes Corporation Powder metallurgy lubricants, compositions, and methods for using the same

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785801A (en) * 1968-03-01 1974-01-15 Int Nickel Co Consolidated composite materials by powder metallurgy
US3900936A (en) * 1972-10-31 1975-08-26 Parker Pen Co Cemented ferrochrome material
US3841870A (en) * 1973-03-07 1974-10-15 Carpenter Technology Corp Method of making articles from powdered material requiring forming at high temperature
US4106932A (en) * 1974-07-31 1978-08-15 H. L. Blachford Limited Lubricants for powdered metals, and powdered metal compositions containing said lubricants
US4002474A (en) * 1975-07-31 1977-01-11 H. L. Blachford Limited Lubricants for powdered metals
US4098608A (en) * 1975-11-12 1978-07-04 B.S.A. Sintered Components Limited Metal powder compositions
US5744433A (en) * 1994-06-02 1998-04-28 Hoganas Ab Metal powder composition for warm compaction and method for producing sintered products
US5538684A (en) * 1994-08-12 1996-07-23 Hoeganaes Corporation Powder metallurgy lubricant composition and methods for using same
US6235076B1 (en) * 1997-03-19 2001-05-22 Kawasaki Steel Corporation Iron base powder mixture for powder metallurgy excellent in fluidity and moldability, method of production thereof, and method of production of molded article by using the iron base powder mixture

Also Published As

Publication number Publication date
WO2005053882A2 (en) 2005-06-16
US20050118053A1 (en) 2005-06-02

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