JPS5620141A - Sintered hard alloy and its manufacture - Google Patents
Sintered hard alloy and its manufactureInfo
- Publication number
- JPS5620141A JPS5620141A JP9465579A JP9465579A JPS5620141A JP S5620141 A JPS5620141 A JP S5620141A JP 9465579 A JP9465579 A JP 9465579A JP 9465579 A JP9465579 A JP 9465579A JP S5620141 A JPS5620141 A JP S5620141A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- crystal powder
- alloy
- sintered
- hard alloy
- 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
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To obtain a hard alloy having superior wear resistance, mechanical toughness and heat crack resistance by mixing WC crystal powder, BI-type crystal powder and Fe group metal powder and sintering the mixed powder in a specified nitrogen atmosphere to prevent denitrification.
CONSTITUTION: WC crystal powder, BI-type crystal powder having an Nb to (Ta+Nb) molar ratio of ≥0.5 and an N to (C+N) molar ratio of 0.1W0.5 and Fe group metal powder are mixed and sintered in a 10-2W10-4Torr vacuum or sintered while holding the partial pressure of nitrogen intermittently or continuously at 0.1W500Torr in temp. raising, holding and cooling processes. Thus, a uniform alloy is obtd. while preventing denitrification or enriching nitrogen. This alloy is suitable for use as a base material for a covered carbide tool, etc.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9465579A JPS5620141A (en) | 1979-07-24 | 1979-07-24 | Sintered hard alloy and its manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9465579A JPS5620141A (en) | 1979-07-24 | 1979-07-24 | Sintered hard alloy and its manufacture |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59087192A Division JPS6041143B2 (en) | 1984-04-27 | 1984-04-27 | Sintered hard alloy and its manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5620141A true JPS5620141A (en) | 1981-02-25 |
JPS613389B2 JPS613389B2 (en) | 1986-01-31 |
Family
ID=14116260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9465579A Granted JPS5620141A (en) | 1979-07-24 | 1979-07-24 | Sintered hard alloy and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5620141A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5059491A (en) * | 1988-11-11 | 1991-10-22 | Mitsubishi Metal Corporation | Cermet blade member for cutting-tools and process for producing same |
-
1979
- 1979-07-24 JP JP9465579A patent/JPS5620141A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5059491A (en) * | 1988-11-11 | 1991-10-22 | Mitsubishi Metal Corporation | Cermet blade member for cutting-tools and process for producing same |
US5110543A (en) * | 1988-11-11 | 1992-05-05 | Mitsubishi Metal Corporation | Cement blade member for cutting-tools and process for producing same |
Also Published As
Publication number | Publication date |
---|---|
JPS613389B2 (en) | 1986-01-31 |
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