JPS6425901A - Production of low alloy steel powder for low c and low o powder metallurgy - Google Patents

Production of low alloy steel powder for low c and low o powder metallurgy

Info

Publication number
JPS6425901A
JPS6425901A JP62179709A JP17970987A JPS6425901A JP S6425901 A JPS6425901 A JP S6425901A JP 62179709 A JP62179709 A JP 62179709A JP 17970987 A JP17970987 A JP 17970987A JP S6425901 A JPS6425901 A JP S6425901A
Authority
JP
Japan
Prior art keywords
reduce
low
reduce oxide
oxide
hard
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
JP62179709A
Other languages
Japanese (ja)
Other versions
JPH07113121B2 (en
Inventor
Masaaki Sato
Yoshihiro Igai
Hitoshi Sakuma
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP62179709A priority Critical patent/JPH07113121B2/en
Publication of JPS6425901A publication Critical patent/JPS6425901A/en
Publication of JPH07113121B2 publication Critical patent/JPH07113121B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To obtain the titled low alloy steel powder by reducing hard-to-reduce oxide at high temp. with alloyed C after reducing easy-to-reduce oxide caused by dispersion of O quantity at low temp. under reducing atmosphere containing H2 to remarkably reduce remaining C and O in the steel powder. CONSTITUTION:After melting the low alloy steel containing each forming element of the hard-to-reduce oxide and the easy-to-reduce oxide and beforehand adding the fixed quantity of C in accordance with the quantity of the head-to- reduce oxide, it is atomized to pulverize with water-atomizing method. This heated at 400-600 deg.C under reducing atmosphere containing hydrogen to reduce the easy-to-reduce oxide and then this is heated at 1,100-1,300 deg.C under vacuum or inert gas or reducing gas atmosphere to reduce the hard-to-reduce oxide with decarbonizing and deoxygenizing reactions by the above added C and the titled steel powder is produced. Further, it is desirable to contain one or more kinds of Mn, Cr, Si, Nb, V and B as the hard-to-reduce oxide forming element and one or more kinds of Cu, Co and Mo as the easy-to-reduce oxide forming element.
JP62179709A 1987-07-17 1987-07-17 Method for producing low alloy steel powder for powder metallurgy with low C and low O Expired - Lifetime JPH07113121B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179709A JPH07113121B2 (en) 1987-07-17 1987-07-17 Method for producing low alloy steel powder for powder metallurgy with low C and low O

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179709A JPH07113121B2 (en) 1987-07-17 1987-07-17 Method for producing low alloy steel powder for powder metallurgy with low C and low O

Publications (2)

Publication Number Publication Date
JPS6425901A true JPS6425901A (en) 1989-01-27
JPH07113121B2 JPH07113121B2 (en) 1995-12-06

Family

ID=16070503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179709A Expired - Lifetime JPH07113121B2 (en) 1987-07-17 1987-07-17 Method for producing low alloy steel powder for powder metallurgy with low C and low O

Country Status (1)

Country Link
JP (1) JPH07113121B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049402A (en) * 1990-04-26 1992-01-14 Kawasaki Steel Corp Method for executing reduction-annealing to metal powder
JPH0448002A (en) * 1990-06-18 1992-02-18 Kawasaki Steel Corp Method for raising temperature at the time of executing finish reduction annealing to alloy steel powder
JPH04136101A (en) * 1990-09-27 1992-05-11 Kawasaki Steel Corp Method for finish-reducing alloy steel powder
WO2009085000A1 (en) * 2007-12-27 2009-07-09 Höganäs Ab (Publ) Low alloyed steel powder
WO2009085001A1 (en) * 2007-12-27 2009-07-09 Höganäs Ab (Publ) Low alloyed steel powder
CN113523291A (en) * 2021-07-09 2021-10-22 辽宁冠达新材料科技有限公司 Method for preparing A100 ultrahigh-strength alloy steel powder through gas atomization
CN114147216A (en) * 2021-09-30 2022-03-08 钢铁研究总院 Method for adding low-boiling-point easily-oxidized metal elements into steel product and printing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55138001A (en) * 1979-04-11 1980-10-28 Kobe Steel Ltd Preparation of powder of alloy steel with low oxygen
JPS59211501A (en) * 1983-05-16 1984-11-30 Sumitomo Metal Ind Ltd Manufacture of steel powder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55138001A (en) * 1979-04-11 1980-10-28 Kobe Steel Ltd Preparation of powder of alloy steel with low oxygen
JPS59211501A (en) * 1983-05-16 1984-11-30 Sumitomo Metal Ind Ltd Manufacture of steel powder

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049402A (en) * 1990-04-26 1992-01-14 Kawasaki Steel Corp Method for executing reduction-annealing to metal powder
JPH0448002A (en) * 1990-06-18 1992-02-18 Kawasaki Steel Corp Method for raising temperature at the time of executing finish reduction annealing to alloy steel powder
JPH04136101A (en) * 1990-09-27 1992-05-11 Kawasaki Steel Corp Method for finish-reducing alloy steel powder
WO2009085000A1 (en) * 2007-12-27 2009-07-09 Höganäs Ab (Publ) Low alloyed steel powder
WO2009085001A1 (en) * 2007-12-27 2009-07-09 Höganäs Ab (Publ) Low alloyed steel powder
US8398739B2 (en) 2007-12-27 2013-03-19 Hoganas Ab (Publ) Iron-based steel powder composition, method for producing a sintered component and component
CN113523291A (en) * 2021-07-09 2021-10-22 辽宁冠达新材料科技有限公司 Method for preparing A100 ultrahigh-strength alloy steel powder through gas atomization
CN113523291B (en) * 2021-07-09 2023-08-15 辽宁冠达新材料科技有限公司 Method for preparing A100 ultrahigh-strength alloy steel powder by gas atomization
CN114147216A (en) * 2021-09-30 2022-03-08 钢铁研究总院 Method for adding low-boiling-point easily-oxidized metal elements into steel product and printing device

Also Published As

Publication number Publication date
JPH07113121B2 (en) 1995-12-06

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