GB1349523A - Method of making composite bearing materials - Google Patents

Method of making composite bearing materials

Info

Publication number
GB1349523A
GB1349523A GB1349523DA GB1349523A GB 1349523 A GB1349523 A GB 1349523A GB 1349523D A GB1349523D A GB 1349523DA GB 1349523 A GB1349523 A GB 1349523A
Authority
GB
United Kingdom
Prior art keywords
powder
heated
compact
bearing materials
composite bearing
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
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.)
GKN Group Services Ltd
Original Assignee
GKN Group Services 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 GKN Group Services Ltd filed Critical GKN Group Services Ltd
Publication of GB1349523A publication Critical patent/GB1349523A/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
    • C22C33/0228—Using a mixture of prealloyed powders or a master alloy comprising other non-metallic compounds or more than 5% of graphite

Landscapes

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

Abstract

1349523 Sintered bearings G K N GROUP SERVICES Ltd 5 May 1971 [6 Feb 1970] 5693/70 Heading C7D Sintered bearings are made from a composite powder including 25-30% graphite as lubricant, by cold pressing the powder, heating the green compact and hot pressing the heated compact. The preferred powder is 70-75% Fe and 25-30% graphite which is compacted at 20 t. s.i. in a die or isostatically, heated to 950-1150‹C and hot pressed at 30-40 t.s.i. Alternatively a non- ferrous metal powder e.g. tin bronze or gun metal may be used in place of Fe in which case the compact is heated to 650-850‹ C. The powder may also include MoS 2 .
GB1349523D 1970-02-06 1970-02-06 Method of making composite bearing materials Expired GB1349523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB569370 1970-02-06

Publications (1)

Publication Number Publication Date
GB1349523A true GB1349523A (en) 1974-04-03

Family

ID=9800873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1349523D Expired GB1349523A (en) 1970-02-06 1970-02-06 Method of making composite bearing materials

Country Status (1)

Country Link
GB (1) GB1349523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588441A (en) * 2012-03-09 2012-07-18 重庆合达科技有限公司 High low temperature resistant oil-retaining bearing made of powder metallurgy material and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588441A (en) * 2012-03-09 2012-07-18 重庆合达科技有限公司 High low temperature resistant oil-retaining bearing made of powder metallurgy material and manufacturing method thereof
CN102588441B (en) * 2012-03-09 2014-06-11 重庆合达科技有限公司 High low temperature resistant oil-retaining bearing made of powder metallurgy material and manufacturing method thereof

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees