GB892847A - Improvements in and relating to powdered metal moulding - Google Patents
Improvements in and relating to powdered metal mouldingInfo
- 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
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.
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)
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. |
-
1958
- 1958-05-27 GB GB41435/61A patent/GB892847A/en not_active Expired
Cited By (1)
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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