GB1274531A - Method of making alloy steel powder - Google Patents

Method of making alloy steel powder

Info

Publication number
GB1274531A
GB1274531A GB2849869A GB2849869A GB1274531A GB 1274531 A GB1274531 A GB 1274531A GB 2849869 A GB2849869 A GB 2849869A GB 2849869 A GB2849869 A GB 2849869A GB 1274531 A GB1274531 A GB 1274531A
Authority
GB
United Kingdom
Prior art keywords
less
alloy steel
powder
steel powder
june
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.)
Expired
Application number
GB2849869A
Inventor
Robert Amund Huseby
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.)
AO Smith Inland Inc
Original Assignee
AO Smith Inland Inc
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 AO Smith Inland Inc filed Critical AO Smith Inland Inc
Publication of GB1274531A publication Critical patent/GB1274531A/en
Expired 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
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0264—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

1,274,531. Alloy steel powder. A. O. SMITH-INLAND Inc. June 5, 1969 [June 26, 1968], No. 28498/69. Heading C7A. Finely divided alloy steel powder to be annealed and used in powder metallurgy processes consists, by weight of: Impurities may be Ti and Al each less than 0À05%, S less than 0À04% and P less than 0À035%. The powder, which has an apparent density greater than 2À6g/cc and a green density at a compaction pressure of 30 tsi greater than 6À4g/cc with lubricant is made by (1) atomizing a stream of molten steel by directing flat sheets of water thereagainst at an angle of 15-55 degrees with respect to the axis of the stream, (2) annealing the resulting particles in a reducing atmosphere at 1500‹-2100‹F. to soften the particles and reduce C to less than 0À05% and O 2 to less than 0À4%, and (3) breaking up the caked structure.
GB2849869A 1968-06-26 1969-06-05 Method of making alloy steel powder Expired GB1274531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74007068A 1968-06-26 1968-06-26

Publications (1)

Publication Number Publication Date
GB1274531A true GB1274531A (en) 1972-05-17

Family

ID=24974918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2849869A Expired GB1274531A (en) 1968-06-26 1969-06-05 Method of making alloy steel powder

Country Status (6)

Country Link
JP (1) JPS4928827B1 (en)
BR (1) BR6910043D0 (en)
CA (1) CA935305A (en)
DE (1) DE1931809A1 (en)
FR (1) FR2011681A1 (en)
GB (1) GB1274531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115365491A (en) * 2022-08-29 2022-11-22 浙江旗创新材料科技有限公司 Efficient powder premixing process

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676103A (en) * 1971-02-17 1972-07-11 Federal Mogul Corp Pre-alloyed nickel-free silicon-free minimal-oxide low-alloy iron powder and method of making the same
JPS5540097U (en) * 1978-09-11 1980-03-14
US5080712B1 (en) * 1990-05-16 1996-10-29 Hoeganaes Corp Optimized double press-double sinter powder metallurgy method
CN114871437A (en) * 2022-05-20 2022-08-09 辽宁晟钰新材料科技有限公司 Method for manufacturing water-atomized nonmagnetic steel fine powder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115365491A (en) * 2022-08-29 2022-11-22 浙江旗创新材料科技有限公司 Efficient powder premixing process
CN115365491B (en) * 2022-08-29 2024-05-17 浙江旗创新材料科技有限公司 Efficient powder premixing process

Also Published As

Publication number Publication date
DE1931809A1 (en) 1970-01-02
FR2011681A1 (en) 1970-03-06
CA935305A (en) 1973-10-16
JPS4928827B1 (en) 1974-07-30
BR6910043D0 (en) 1973-04-17

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years