GB917251A - Improvements in or relating to sintered iron components and their production - Google Patents

Improvements in or relating to sintered iron components and their production

Info

Publication number
GB917251A
GB917251A GB2764861A GB2764861A GB917251A GB 917251 A GB917251 A GB 917251A GB 2764861 A GB2764861 A GB 2764861A GB 2764861 A GB2764861 A GB 2764861A GB 917251 A GB917251 A GB 917251A
Authority
GB
United Kingdom
Prior art keywords
powder
coarse
fine
particle size
relating
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
GB2764861A
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.)
Huettenwerk Oberhausen AG
Original Assignee
Huettenwerk Oberhausen AG
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 Huettenwerk Oberhausen AG filed Critical Huettenwerk Oberhausen AG
Publication of GB917251A publication Critical patent/GB917251A/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

Landscapes

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

Abstract

A sintered iron component is formed from a mixture of fine iron powder with a particle size of at least 90% below 0.1 mm. and at least 70% below 0.06 mm. and a coarse iron powder with a particle size of at least 80% over 0.06 mm. and at least 70% over 0.1 mm., the fine iron powder having been deformed to a greater extent than the coarse powder prior to the mixing. The mixture contains 5-40% of the fine powder and 60-95% of the coarse, the fine powder having first been deformed by compacting followed by crushing to the requisite particle size. The coarse powder may also be stress relieved by heating at 600 DEG C. prior to mixing. The mixed powders after compaction at 3 tons/cm.2 are sintered at 1000-1200 DEG C.
GB2764861A 1960-10-20 1961-07-31 Improvements in or relating to sintered iron components and their production Expired GB917251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0040731 1960-10-20

Publications (1)

Publication Number Publication Date
GB917251A true GB917251A (en) 1963-01-30

Family

ID=7154335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2764861A Expired GB917251A (en) 1960-10-20 1961-07-31 Improvements in or relating to sintered iron components and their production

Country Status (1)

Country Link
GB (1) GB917251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124699A2 (en) * 1983-05-09 1984-11-14 Kloster Speedsteel Aktiebolag Method of producing a sintered body without communicating porosity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124699A2 (en) * 1983-05-09 1984-11-14 Kloster Speedsteel Aktiebolag Method of producing a sintered body without communicating porosity
EP0124699A3 (en) * 1983-05-09 1985-11-27 Kloster Speedsteel Aktiebolag Method of producing a sintered body without communicating porosity

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