PL337637A1 - Method of obtaining shaped workpieces - Google Patents

Method of obtaining shaped workpieces

Info

Publication number
PL337637A1
PL337637A1 PL99337637A PL33763799A PL337637A1 PL 337637 A1 PL337637 A1 PL 337637A1 PL 99337637 A PL99337637 A PL 99337637A PL 33763799 A PL33763799 A PL 33763799A PL 337637 A1 PL337637 A1 PL 337637A1
Authority
PL
Poland
Prior art keywords
mpa
compacting
treated
temperature
under pressure
Prior art date
Application number
PL99337637A
Other versions
PL191806B1 (en
Inventor
Wolf Michajlowicz Leszczynski
Ewgenij Stepanowic Sewastianow
Aleksandr Anatolewicz Stojanow
Jurij Jakowlewicz Kuczma
Hanna Wisniewska-Weinert
Original Assignee
Inst Obrobki Plastycznej
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 Inst Obrobki Plastycznej filed Critical Inst Obrobki Plastycznej
Priority to PL337637A priority Critical patent/PL191806B1/en
Priority to PCT/PL2000/000098 priority patent/WO2001049891A1/en
Priority to DE60004106T priority patent/DE60004106T2/en
Priority to AT00981941T priority patent/ATE245715T1/en
Priority to EP00981941A priority patent/EP1246950B1/en
Publication of PL337637A1 publication Critical patent/PL337637A1/en
Publication of PL191806B1 publication Critical patent/PL191806B1/en

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
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The invention concerns a method of getting shaped elements by pressing, sintering and cold-compacting of powder mixtures of steel with alloy additions, being used for production of machine parts, e.g. gears, bearings and others of high surface pressure strength and wear resistance. The method is characterized in that a preformed semi-final product is treated with presintering, preferably in dissociated-ammonia atmosphere at temperature 700 - 750 DEG C, preferably 720 - 730 DEG C during 20 - 40 min, preferably 30 min, and first compacting under pressure 700 - 800 MPa, preferably 750 MPa, and then second compacting with simultaneous calibration under pressure 900 - 1000 MPa, preferably 950 MPa, then is treated with final sintering at temperature 1100 - 1200 DEG C, preferably 1120 - 1150 DEG C, during 40 - 50 min, preferably 45 min.
PL337637A 1999-12-31 1999-12-31 Method of obtaining shaped workpieces PL191806B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL337637A PL191806B1 (en) 1999-12-31 1999-12-31 Method of obtaining shaped workpieces
PCT/PL2000/000098 WO2001049891A1 (en) 1999-12-31 2000-12-14 Compacting and sintering steel powder
DE60004106T DE60004106T2 (en) 1999-12-31 2000-12-14 PRESSING AND SINTERING STEEL POWDER
AT00981941T ATE245715T1 (en) 1999-12-31 2000-12-14 PRESSING AND SINTING STEEL POWDER
EP00981941A EP1246950B1 (en) 1999-12-31 2000-12-14 Compacting and sintering steel powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL337637A PL191806B1 (en) 1999-12-31 1999-12-31 Method of obtaining shaped workpieces

Publications (2)

Publication Number Publication Date
PL337637A1 true PL337637A1 (en) 2001-07-02
PL191806B1 PL191806B1 (en) 2006-07-31

Family

ID=20075799

Family Applications (1)

Application Number Title Priority Date Filing Date
PL337637A PL191806B1 (en) 1999-12-31 1999-12-31 Method of obtaining shaped workpieces

Country Status (5)

Country Link
EP (1) EP1246950B1 (en)
AT (1) ATE245715T1 (en)
DE (1) DE60004106T2 (en)
PL (1) PL191806B1 (en)
WO (1) WO2001049891A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002714B3 (en) * 2004-01-19 2005-05-19 SCHWäBISCHE HüTTENWERKE GMBH To produce sintered components, of light metal alloys, the powder is compressed into a green compact to be give a low temperature sintering followed by further compression and high temperature sintering

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2648519B2 (en) * 1989-10-03 1997-09-03 日立粉末冶金株式会社 Method of manufacturing synchronizer hub
US5080712B1 (en) * 1990-05-16 1996-10-29 Hoeganaes Corp Optimized double press-double sinter powder metallurgy method
AU723317B2 (en) * 1996-05-13 2000-08-24 Gkn Sinter Metals Inc. Method for preparing high performance ferrous materials

Also Published As

Publication number Publication date
ATE245715T1 (en) 2003-08-15
DE60004106T2 (en) 2004-04-22
PL191806B1 (en) 2006-07-31
EP1246950A1 (en) 2002-10-09
DE60004106D1 (en) 2003-08-28
EP1246950B1 (en) 2003-07-23
WO2001049891A1 (en) 2001-07-12

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