JPS57203731A - Production of sintered hard alloy - Google Patents
Production of sintered hard alloyInfo
- Publication number
- JPS57203731A JPS57203731A JP8781781A JP8781781A JPS57203731A JP S57203731 A JPS57203731 A JP S57203731A JP 8781781 A JP8781781 A JP 8781781A JP 8781781 A JP8781781 A JP 8781781A JP S57203731 A JPS57203731 A JP S57203731A
- Authority
- JP
- Japan
- Prior art keywords
- hard alloy
- temp
- effect
- sintering
- sintered
- 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
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To obtain a sintered hard alloy having exceptionally high plastic deformation resistance and high toughness, by sintering the sintered hard alloy once at a sintering temp. then heating the sintered body again at specific temps.
CONSTITUTION: A sintered hard alloy which is a composite material of a hard material such as carbide, nitride or the like and a ferrous metal is once sintered at an ordinary sintering temp., after which it is cooled at ≤800°C in a cooling process. Thereafter, this is again held for ≥10min at 1,250W1,330°C, and is then cooled. Here, if the reheating temp. is below the lower limit, there is no effect of improving plastic deformation resistance, and in excess of the upper limit, the effect is not marked. If the reheating time is ≤10min, no improving effect is anticipated. Further unless the cooling temp. after the sintering is ≤800°C, the effect of improving the plastic deformation resistant is not observed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8781781A JPS57203731A (en) | 1981-06-08 | 1981-06-08 | Production of sintered hard alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8781781A JPS57203731A (en) | 1981-06-08 | 1981-06-08 | Production of sintered hard alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57203731A true JPS57203731A (en) | 1982-12-14 |
Family
ID=13925515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8781781A Pending JPS57203731A (en) | 1981-06-08 | 1981-06-08 | Production of sintered hard alloy |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57203731A (en) |
-
1981
- 1981-06-08 JP JP8781781A patent/JPS57203731A/en active Pending
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