EP0503326A3 - Process for preparing a sintered article from steel powder - Google Patents

Process for preparing a sintered article from steel powder Download PDF

Info

Publication number
EP0503326A3
EP0503326A3 EP19920102793 EP92102793A EP0503326A3 EP 0503326 A3 EP0503326 A3 EP 0503326A3 EP 19920102793 EP19920102793 EP 19920102793 EP 92102793 A EP92102793 A EP 92102793A EP 0503326 A3 EP0503326 A3 EP 0503326A3
Authority
EP
European Patent Office
Prior art keywords
preparing
steel powder
sintered article
sintered
article
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
Application number
EP19920102793
Other languages
English (en)
Other versions
EP0503326A2 (de
Inventor
Gundolf Dr. Meyer
Christoph Toennes
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.)
ABB Asea Brown Boveri Ltd
Original Assignee
ABB Asea Brown Boveri Ltd
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 ABB Asea Brown Boveri Ltd filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0503326A2 publication Critical patent/EP0503326A2/de
Publication of EP0503326A3 publication Critical patent/EP0503326A3/de
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • B22F3/101—Changing atmosphere
    • 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
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/01—Reducing atmosphere
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/04—CO or CO2
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/10—Inert gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
EP19920102793 1991-03-13 1992-02-20 Process for preparing a sintered article from steel powder Ceased EP0503326A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH76291 1991-03-13
CH762/91 1991-03-13

Publications (2)

Publication Number Publication Date
EP0503326A2 EP0503326A2 (de) 1992-09-16
EP0503326A3 true EP0503326A3 (en) 1993-06-30

Family

ID=4194582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920102793 Ceased EP0503326A3 (en) 1991-03-13 1992-02-20 Process for preparing a sintered article from steel powder

Country Status (4)

Country Link
US (1) US5162099A (de)
EP (1) EP0503326A3 (de)
JP (1) JPH0625710A (de)
DE (1) DE4113928A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04208512A (ja) * 1990-11-30 1992-07-30 Nec Corp 固体電解コンデンサの製造方法
SE9701976D0 (sv) * 1997-05-27 1997-05-27 Hoeganaes Ab Method of monitoring and controlling the composition of the sintering atmosphere
SE9800153D0 (sv) * 1998-01-21 1998-01-21 Hoeganaes Ab Low pressure process
SE520251C2 (sv) * 1999-05-20 2003-06-17 Sandvik Ab Motståndselement av molybdensilicidtyp för sintring av metallpulver

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386072A (en) * 1944-02-28 1945-10-02 Enos A Stewart Method of making sponge iron
GB638114A (en) * 1946-04-02 1950-05-31 Davide Primavesi Improvements in or relating to the production of sintered bodies from metal powders
EP0038558A1 (de) * 1980-04-21 1981-10-28 Sumitomo Electric Industries Limited Verfahren zur Herstellung von gesinterten Eisenlegierungen
EP0066207A1 (de) * 1981-05-20 1982-12-08 Air Products And Chemicals, Inc. Verfahren zur Erzielung einer gleichmässigen Kohlenstoffverteilung in Eisenformkörpern bei hohen Temperaturen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5873702A (ja) * 1981-10-28 1983-05-04 Sumitomo Metal Ind Ltd 焼入れ性及び靭性にすぐれた粉末鍛造品の製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386072A (en) * 1944-02-28 1945-10-02 Enos A Stewart Method of making sponge iron
GB638114A (en) * 1946-04-02 1950-05-31 Davide Primavesi Improvements in or relating to the production of sintered bodies from metal powders
EP0038558A1 (de) * 1980-04-21 1981-10-28 Sumitomo Electric Industries Limited Verfahren zur Herstellung von gesinterten Eisenlegierungen
EP0066207A1 (de) * 1981-05-20 1982-12-08 Air Products And Chemicals, Inc. Verfahren zur Erzielung einer gleichmässigen Kohlenstoffverteilung in Eisenformkörpern bei hohen Temperaturen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
E.KLAR 'METALS HANDBOOK' 1984 , ASM , OHIO 9th edition vol.7 *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 169 (M-231)(1314) 26. Juli 1983 & JP-A-58 073 702 ( SUMITOMO KINZOKU KOGYO ) 4. Mai 1983 *

Also Published As

Publication number Publication date
DE4113928A1 (de) 1992-09-17
JPH0625710A (ja) 1994-02-01
EP0503326A2 (de) 1992-09-16
US5162099A (en) 1992-11-10

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