GB779949A - Improvements in or relating to the production of powder metal compacts - Google Patents

Improvements in or relating to the production of powder metal compacts

Info

Publication number
GB779949A
GB779949A GB3465454A GB3465454A GB779949A GB 779949 A GB779949 A GB 779949A GB 3465454 A GB3465454 A GB 3465454A GB 3465454 A GB3465454 A GB 3465454A GB 779949 A GB779949 A GB 779949A
Authority
GB
United Kingdom
Prior art keywords
per cent
powder
relating
production
powder metal
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
GB3465454A
Inventor
Peter Robert Marshall
Philip James Ridout
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.)
Birmingham Small Arms Co Ltd
Original Assignee
Birmingham Small Arms Co 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 Birmingham Small Arms Co Ltd filed Critical Birmingham Small Arms Co Ltd
Priority to GB3465454A priority Critical patent/GB779949A/en
Publication of GB779949A publication Critical patent/GB779949A/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
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • 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%

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

Powder metal compacts of stainless steel powder are produced by mixing the powder with a lubricant, e.g. paraffin wax and calcium stearate, and with a quantity of nickel powder, preferably 5-30 per cent of a size smaller than 300 mesh British Standard Sieve. In an example the mixture is compacted at 35 tons/sq. in. and sintered for one hour at 1300 DEG C., the stainless steel having a composition C 0.14-0.19 per cent; Mn up to 2.0 per cent; Si at least 0.2 per cent; S up to 0.05 per cent; P up to 0.05 per cent; Ni 7.0 - 10.0 per cent; Cr 17.0-20.0 per cent; Fe the balance.
GB3465454A 1954-11-30 1954-11-30 Improvements in or relating to the production of powder metal compacts Expired GB779949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3465454A GB779949A (en) 1954-11-30 1954-11-30 Improvements in or relating to the production of powder metal compacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3465454A GB779949A (en) 1954-11-30 1954-11-30 Improvements in or relating to the production of powder metal compacts

Publications (1)

Publication Number Publication Date
GB779949A true GB779949A (en) 1957-07-24

Family

ID=10368330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3465454A Expired GB779949A (en) 1954-11-30 1954-11-30 Improvements in or relating to the production of powder metal compacts

Country Status (1)

Country Link
GB (1) GB779949A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279332B (en) * 1962-08-18 1968-10-03 Krebsoege Gmbh Sintermetall Process for the powder-metallurgical production of precision parts from stellite or stellite-like alloys
DE3421858A1 (en) * 1983-06-15 1985-01-03 Nippon Dia Clevite Co., Ltd., Narashino, Chiba Process for manufacturing a porous body from stainless steel
US4552719A (en) * 1980-12-03 1985-11-12 N.D.C. Co., Ltd. Method of sintering stainless steel powder
WO2003106077A1 (en) * 2002-06-14 2003-12-24 Höganäs Ab Composition and process for warm compaction of stainless steel powders

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279332B (en) * 1962-08-18 1968-10-03 Krebsoege Gmbh Sintermetall Process for the powder-metallurgical production of precision parts from stellite or stellite-like alloys
US4552719A (en) * 1980-12-03 1985-11-12 N.D.C. Co., Ltd. Method of sintering stainless steel powder
DE3421858A1 (en) * 1983-06-15 1985-01-03 Nippon Dia Clevite Co., Ltd., Narashino, Chiba Process for manufacturing a porous body from stainless steel
WO2003106077A1 (en) * 2002-06-14 2003-12-24 Höganäs Ab Composition and process for warm compaction of stainless steel powders
AU2003239021B2 (en) * 2002-06-14 2006-09-07 Hoganas Ab Composition and process for warm compaction of stainless steel powders
CN1299859C (en) * 2002-06-14 2007-02-14 霍加纳斯股份有限公司 Composition and process for warm compaction of stainless steel powders

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