GB892847A - Improvements in and relating to powdered metal moulding - Google Patents

Improvements in and relating to powdered metal moulding

Info

Publication number
GB892847A
GB892847A GB41435/61A GB4143561A GB892847A GB 892847 A GB892847 A GB 892847A GB 41435/61 A GB41435/61 A GB 41435/61A GB 4143561 A GB4143561 A GB 4143561A GB 892847 A GB892847 A GB 892847A
Authority
GB
United Kingdom
Prior art keywords
graphite
atmospheres
micron
mixing
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
GB41435/61A
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.)
JOHN RISDON AMPHLETT
Original Assignee
JOHN RISDON AMPHLETT
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 JOHN RISDON AMPHLETT filed Critical JOHN RISDON AMPHLETT
Publication of GB892847A publication Critical patent/GB892847A/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
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Powder Metallurgy (AREA)

Abstract

A sintered metal graphite compact containing 11% to 25% graphite is formed by first compacting colloidal graphite and then crushing to form granules preferably 200 to 500 micron size, mixing the granules with a metal powder and then hot pressing. The metals comprise one or more of copper, iron and aluminium and optionally up to 15% of zinc, cadmium, lead or tin and up to 9% of antimony, cobalt, beryllium or manganese. The graphite, preferably less than 1 micron in size is compacted at 2000 atmospheres and then crushed to agglomerates of 200-500 micron size. After mixing, the metal graphite mixture is cold pressed at a pressure of at least 2000 atmospheres, sintered at a low temperature below the entectic and finally hot pressed at 1500-4000 atmospheres.
GB41435/61A 1958-02-11 1958-05-27 Improvements in and relating to powdered metal moulding Expired GB892847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE892847X 1958-02-11

Publications (1)

Publication Number Publication Date
GB892847A true GB892847A (en) 1962-04-04

Family

ID=6846479

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41435/61A Expired GB892847A (en) 1958-02-11 1958-05-27 Improvements in and relating to powdered metal moulding

Country Status (1)

Country Link
GB (1) GB892847A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293967B (en) * 1962-03-28 1969-04-30 Deventer Gert Process for the production of a composite strip for further processing into bearing shells, bumper rings or the like.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293967B (en) * 1962-03-28 1969-04-30 Deventer Gert Process for the production of a composite strip for further processing into bearing shells, bumper rings or the like.

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