JPS565902A - Method of reproducing raw material powder for powder metallurgy from used cermet - Google Patents
Method of reproducing raw material powder for powder metallurgy from used cermetInfo
- Publication number
- JPS565902A JPS565902A JP8163479A JP8163479A JPS565902A JP S565902 A JPS565902 A JP S565902A JP 8163479 A JP8163479 A JP 8163479A JP 8163479 A JP8163479 A JP 8163479A JP S565902 A JPS565902 A JP S565902A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- cermet
- raw material
- tic
- same
- 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.)
- Granted
Links
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To reproduce the raw material powder for powder metallurgy having superior characteristics from the used cermet which is mainly composed of TiC, by heating said cermet to the specific temperature under an N2-containing atmosphere and cooling the same to make it porous then grinding the same into fine powder.
CONSTITUTION: The used cermet of, e.g. TiC-Ni-Mo consisting essentially of TiC is charged into a grahite crucible or the like and is heated to ≥1,600°C under an 10W 760mmHg N2 partial-pressure atmosphere, after which it is cooled in that atmosphere. Next, the resultant treating material which has become porous is subjected to a primary grinding by using, for example, a jaw crusher and a roll crusher, after which it is subjected to a secondary griding by using a vibration mill in succession, whereby the raw material powder for powder metallurgy composed of fine powder having an e.g. 2.0μm mean grain size is reproduced. The use of this reproduced powder yields the cermet which has much better alloy characteristics and cutting performance as compared to conventional cermet of the same component composition.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54081634A JPS5849602B2 (en) | 1979-06-28 | 1979-06-28 | Method for regenerating raw material powder for powder metallurgy from used cermets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54081634A JPS5849602B2 (en) | 1979-06-28 | 1979-06-28 | Method for regenerating raw material powder for powder metallurgy from used cermets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS565902A true JPS565902A (en) | 1981-01-22 |
| JPS5849602B2 JPS5849602B2 (en) | 1983-11-05 |
Family
ID=13751760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54081634A Expired JPS5849602B2 (en) | 1979-06-28 | 1979-06-28 | Method for regenerating raw material powder for powder metallurgy from used cermets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5849602B2 (en) |
-
1979
- 1979-06-28 JP JP54081634A patent/JPS5849602B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5849602B2 (en) | 1983-11-05 |
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