EP0392405A3 - Process for dewaxing and improving the properties of injection molded metallic articles - Google Patents

Process for dewaxing and improving the properties of injection molded metallic articles Download PDF

Info

Publication number
EP0392405A3
EP0392405A3 EP19900106728 EP90106728A EP0392405A3 EP 0392405 A3 EP0392405 A3 EP 0392405A3 EP 19900106728 EP19900106728 EP 19900106728 EP 90106728 A EP90106728 A EP 90106728A EP 0392405 A3 EP0392405 A3 EP 0392405A3
Authority
EP
European Patent Office
Prior art keywords
dewaxing
improving
properties
injection molded
metallic articles
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
Application number
EP19900106728
Other languages
German (de)
Other versions
EP0392405A2 (en
EP0392405B1 (en
Inventor
Martin Bloemacher
Reinhold Schlegel
Dieter Dr. Weinand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP0392405A2 publication Critical patent/EP0392405A2/en
Publication of EP0392405A3 publication Critical patent/EP0392405A3/en
Application granted granted Critical
Publication of EP0392405B1 publication Critical patent/EP0392405B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • B22F3/1021—Removal of binder or filler
    • 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
    • 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
    • C22C33/0235—Starting from compounds, e.g. oxides
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Process for dewaxing injection-moulded metal parts consisting of a metal/binder mixture, characterised in that a metal oxide is added to the metal/binder mixture.
EP90106728A 1989-04-14 1990-04-07 Process for dewaxing and improving the properties of injection molded metallic articles Expired - Lifetime EP0392405B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3912298A DE3912298A1 (en) 1989-04-14 1989-04-14 METHOD FOR DEWARNING AND IMPROVING THE PROPERTIES OF INJECTION MOLDED METAL PARTS
DE3912298 1989-04-14

Publications (3)

Publication Number Publication Date
EP0392405A2 EP0392405A2 (en) 1990-10-17
EP0392405A3 true EP0392405A3 (en) 1990-12-05
EP0392405B1 EP0392405B1 (en) 1994-07-27

Family

ID=6378681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106728A Expired - Lifetime EP0392405B1 (en) 1989-04-14 1990-04-07 Process for dewaxing and improving the properties of injection molded metallic articles

Country Status (7)

Country Link
US (1) US5009841A (en)
EP (1) EP0392405B1 (en)
JP (1) JPH02294405A (en)
AT (1) ATE109049T1 (en)
DE (2) DE3912298A1 (en)
DK (1) DK0392405T3 (en)
ES (1) ES2057239T3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5746960A (en) * 1988-04-15 1998-05-05 Citizen Watch Co., Ltd. Method of manufacturing powder injection molded part
US5366679A (en) * 1992-05-27 1994-11-22 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for thermal debinding and sintering of a workpiece
US5401292A (en) * 1992-08-03 1995-03-28 Isp Investments Inc. Carbonyl iron power premix composition
CA2307109C (en) * 1997-10-21 2009-09-08 Hoeganaes Corporation Improved metallurgical compositions containing binding agent/lubricant and process for preparing same
US6280683B1 (en) 1997-10-21 2001-08-28 Hoeganaes Corporation Metallurgical compositions containing binding agent/lubricant and process for preparing same
CN101617079B (en) * 2007-02-20 2012-06-27 巴斯夫欧洲公司 Method for producing metallised textile surfaces using electricity-generating or electricity-consuming elements
CN103464759B (en) * 2013-09-05 2015-10-21 北京科技大学 A kind of method preparing high-performance complicated shape pure iron soft magnetic products
US10022845B2 (en) 2014-01-16 2018-07-17 Milwaukee Electric Tool Corporation Tool bit
CN106735242A (en) * 2017-01-20 2017-05-31 杭州铭赫科技有限公司 It is a kind of by oxalic acid apply to it is metal injection molded during method
US11638987B2 (en) 2017-12-01 2023-05-02 Milwaukee Electric Tool Corporation Wear resistant tool bit
USD921468S1 (en) 2018-08-10 2021-06-08 Milwaukee Electric Tool Corporation Driver bit
CN111940740A (en) * 2020-08-25 2020-11-17 兰州金浩机械制造有限公司 Powder metallurgy material injection molding method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1483694A1 (en) * 1965-07-16 1969-02-27 Feldmuehle Ag Process for the production of molded bodies from powders of metals or metal alloys
EP0177772A2 (en) * 1984-10-09 1986-04-16 International Business Machines Corporation Processes for fabricating a sintered powdered metal component

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB779242A (en) * 1952-08-11 1957-07-17 Standard Telephones Cables Ltd Improvements in or relating to the formation of moulded articles from sinterable materials
FR1090014A (en) * 1952-08-11 1955-03-25 Int Standard Electric Corp Methods and process for molding materials, especially ceramic parts
US4197118A (en) * 1972-06-14 1980-04-08 Parmatech Corporation Manufacture of parts from particulate material
US3989518A (en) * 1975-05-08 1976-11-02 United States Steel Corporation Production of powder metallurgical parts by formation of sintered preforms in thermally degradable molds
US4113480A (en) * 1976-12-09 1978-09-12 Cabot Corporation Method of injection molding powder metal parts
US4431449A (en) * 1977-09-26 1984-02-14 Minnesota Mining And Manufacturing Company Infiltrated molded articles of spherical non-refractory metal powders
US4404166A (en) * 1981-01-22 1983-09-13 Witec Cayman Patents, Limited Method for removing binder from a green body
DE3120501C2 (en) * 1981-05-22 1983-02-10 MTU Motoren- und Turbinen-Union München GmbH, 8000 München "Process and device for the production of molded parts"
US4604259A (en) * 1983-10-11 1986-08-05 Scm Corporation Process for making copper-rich metal shapes by powder metallurgy

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1483694A1 (en) * 1965-07-16 1969-02-27 Feldmuehle Ag Process for the production of molded bodies from powders of metals or metal alloys
EP0177772A2 (en) * 1984-10-09 1986-04-16 International Business Machines Corporation Processes for fabricating a sintered powdered metal component

Also Published As

Publication number Publication date
ES2057239T3 (en) 1994-10-16
ATE109049T1 (en) 1994-08-15
JPH02294405A (en) 1990-12-05
DE59006550D1 (en) 1994-09-01
US5009841A (en) 1991-04-23
DE3912298A1 (en) 1990-10-18
EP0392405A2 (en) 1990-10-17
EP0392405B1 (en) 1994-07-27
DK0392405T3 (en) 1994-08-22

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