GB639138A - Improvements relating to powder metallurgically produced materials and processes formaking the same - Google Patents
Improvements relating to powder metallurgically produced materials and processes formaking the sameInfo
- Publication number
- GB639138A GB639138A GB11363/47A GB1136347A GB639138A GB 639138 A GB639138 A GB 639138A GB 11363/47 A GB11363/47 A GB 11363/47A GB 1136347 A GB1136347 A GB 1136347A GB 639138 A GB639138 A GB 639138A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- copper
- mesh
- stainless steel
- nickel
- 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
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0242—Making ferrous alloys by powder metallurgy using the impregnating technique
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 powder metallurgically produced material and shaped body thereof consists of about 60-95 per cent stainless steel and a metal or metal alloy selected from copper, silver, tin or alloys of these metals and may be produced by infiltrating the metal or its alloy into a compacted matrix of stainless steel, e.g., of porosity 5-35 per cent. The stainless steel powder used preferably has a particle size all less than 100 mesh and at least half of which is greater than 325 mesh, or having a particle size between minus 100 mesh and plus 200 mesh. The matrix may be pre-sintered and cooled before infiltration. After infiltration the material may be heat treated. Infiltration of tin or tin alloy may be performed at between about 1000 and 1100 DEG C. The stainless steel may be one containing less than about 0.1 per cent of carbon and, e.g., 18 per cent chromium and 8 per cent nickel. A copper alloy infiltrant may comprise 90-93 per cent copper and the balance iron, nickel and/or manganese, e.g., one containing 3-10 per cent nickel. The copper alloy may comprise 60-95 per cent copper, 3-5 per cent iron, 3-10 per cent nickel and 3-10 per cent manganese.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US639138XA | 1946-04-01 | 1946-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB639138A true GB639138A (en) | 1950-06-21 |
Family
ID=22052325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11363/47A Expired GB639138A (en) | 1946-04-01 | 1947-04-28 | Improvements relating to powder metallurgically produced materials and processes formaking the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB639138A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2798809A (en) * | 1952-06-09 | 1957-07-09 | Sintercast Corp America | Methods of infiltrating high melting skeleton bodies |
| FR2403856A1 (en) * | 1977-09-26 | 1979-04-20 | Minnesota Mining & Mfg | MOLDED ARTICLES CONSTITUTED BY INFILTRATION OF NON-REFRACTORY SPHERICAL METAL POWDERS |
| DK152179B (en) * | 1974-09-11 | 1988-02-08 | Brico Eng | CASTED ALUMINUM SUBSTANCE WITH INSTALLED PART OF AN AUSTENITIC PRE-ALOY. |
| EP0365275A2 (en) * | 1988-10-21 | 1990-04-25 | Texas Instruments Incorporated | A composite material heat-dissipating member for a semiconductor element and method of its fabrication |
-
1947
- 1947-04-28 GB GB11363/47A patent/GB639138A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2798809A (en) * | 1952-06-09 | 1957-07-09 | Sintercast Corp America | Methods of infiltrating high melting skeleton bodies |
| DK152179B (en) * | 1974-09-11 | 1988-02-08 | Brico Eng | CASTED ALUMINUM SUBSTANCE WITH INSTALLED PART OF AN AUSTENITIC PRE-ALOY. |
| FR2403856A1 (en) * | 1977-09-26 | 1979-04-20 | Minnesota Mining & Mfg | MOLDED ARTICLES CONSTITUTED BY INFILTRATION OF NON-REFRACTORY SPHERICAL METAL POWDERS |
| EP0365275A2 (en) * | 1988-10-21 | 1990-04-25 | Texas Instruments Incorporated | A composite material heat-dissipating member for a semiconductor element and method of its fabrication |
| EP0365275A3 (en) * | 1988-10-21 | 1990-11-22 | Texas Instruments Incorporated | A composite material, a heat-dissipating member using the material in a circuit system, the circuit system, and methods for making |
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