JPS5735601A - Sintering and forging method - Google Patents
Sintering and forging methodInfo
- Publication number
- JPS5735601A JPS5735601A JP11028880A JP11028880A JPS5735601A JP S5735601 A JPS5735601 A JP S5735601A JP 11028880 A JP11028880 A JP 11028880A JP 11028880 A JP11028880 A JP 11028880A JP S5735601 A JPS5735601 A JP S5735601A
- Authority
- JP
- Japan
- Prior art keywords
- forging
- powder
- sintered bodies
- coating
- phenolic resin
- 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.)
- Pending
Links
Landscapes
- Forging (AREA)
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To make forging in an ordinary forging process possible by coating a thermosetting phenolic resin on the surface of metallic powder-sintered bodies then heating and forging said bodies.
CONSTITUTION: A forging method of heating and forging metallic powder-sintered bodies after coating a thermosetting phenolic resin on the surface thereof. According to this method, the thermosetting phenolic resin carbonizes, and forms a uniform carbon coating on the surface of the powder-sintered bodies and this coating shuts off the powder-sintered bodies from the atmosphere in a furnace during heating or the atmospheric air during forging, thereby preventing oxidation and decarburization. To maintain the density ratio after forging at ≥95%, the density ratio of the powder-sintered bodies is preferably 50W95%, and when reheating after forging is required, it is preferable to adopt forging ratios so as to maintain the density ratio of the powder-sintered bodies after the forging at ≥95% in order to prevent the internal oxidation and decarburization by closing the greater part of the pores of the powder sintered bodies.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11028880A JPS5735601A (en) | 1980-08-13 | 1980-08-13 | Sintering and forging method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11028880A JPS5735601A (en) | 1980-08-13 | 1980-08-13 | Sintering and forging method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5735601A true JPS5735601A (en) | 1982-02-26 |
Family
ID=14531893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11028880A Pending JPS5735601A (en) | 1980-08-13 | 1980-08-13 | Sintering and forging method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5735601A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4671928A (en) * | 1984-04-26 | 1987-06-09 | International Business Machines Corporation | Method of controlling the sintering of metal particles |
JPH0356602A (en) * | 1989-07-26 | 1991-03-12 | Mazda Motor Corp | Forging method |
-
1980
- 1980-08-13 JP JP11028880A patent/JPS5735601A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4671928A (en) * | 1984-04-26 | 1987-06-09 | International Business Machines Corporation | Method of controlling the sintering of metal particles |
JPH0356602A (en) * | 1989-07-26 | 1991-03-12 | Mazda Motor Corp | Forging method |
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