JPS5550404A - Treating method of tool steel powder sintered body - Google Patents
Treating method of tool steel powder sintered bodyInfo
- Publication number
- JPS5550404A JPS5550404A JP12385978A JP12385978A JPS5550404A JP S5550404 A JPS5550404 A JP S5550404A JP 12385978 A JP12385978 A JP 12385978A JP 12385978 A JP12385978 A JP 12385978A JP S5550404 A JPS5550404 A JP S5550404A
- Authority
- JP
- Japan
- Prior art keywords
- tool steel
- hot
- carbides
- carbide
- coarsened
- 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 improve abrasion resistance and heat resistance by heating tool steel powder at the temperatures higher by further 30°C from the carbide initial melt appearing temperature then subjecting the same to hot forging at the time of molding and sintering the same by a hot hydrostatic pressing method.
CONSTITUTION: Powder of tool steel such as high speed steel or the like in which addition metal elements exist as non-solid solution is molded and sintered by a hot hydrostatic pressing method. This sintered product is heated for more than 1 hour at the temperature range of Tm°C to Tm+30°C where the carbide initial melt appearing temperature thereof is let to be Tm°C, whereby the carbides are coarsened. Next, it is hot forged at a forging ratio 2 or over to eliminate the network structure of the carbides kwhich have been formed through the coasening treatment and which are the cause for decreased toughness, thereby leaving only the coarsened carbide particles. The molding becomes the tool steel of high performance by reproducing the texture of superior abrasion resistance and heat resistance.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12385978A JPS5550404A (en) | 1978-10-07 | 1978-10-07 | Treating method of tool steel powder sintered body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12385978A JPS5550404A (en) | 1978-10-07 | 1978-10-07 | Treating method of tool steel powder sintered body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5550404A true JPS5550404A (en) | 1980-04-12 |
Family
ID=14871150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12385978A Pending JPS5550404A (en) | 1978-10-07 | 1978-10-07 | Treating method of tool steel powder sintered body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5550404A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58126963A (en) * | 1982-01-22 | 1983-07-28 | Nachi Fujikoshi Corp | Powdered high speed steel |
| JP2016516135A (en) * | 2013-03-15 | 2016-06-02 | フェデラル−モーグル コーポレイション | Powder metal composition for wear and temperature resistant applications and method for producing the same |
| US10124411B2 (en) | 2008-04-08 | 2018-11-13 | Federal-Mogul Llc | Method for producing powder metal compositions for wear and temperature resistance applications and method of producing same |
-
1978
- 1978-10-07 JP JP12385978A patent/JPS5550404A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58126963A (en) * | 1982-01-22 | 1983-07-28 | Nachi Fujikoshi Corp | Powdered high speed steel |
| JPH0143017B2 (en) * | 1982-01-22 | 1989-09-18 | Fujikoshi Kk | |
| US10124411B2 (en) | 2008-04-08 | 2018-11-13 | Federal-Mogul Llc | Method for producing powder metal compositions for wear and temperature resistance applications and method of producing same |
| US10543535B2 (en) | 2008-04-08 | 2020-01-28 | Tenneco Inc. | Method for producing powder metal compositions for wear and temperature resistance applications |
| JP2016516135A (en) * | 2013-03-15 | 2016-06-02 | フェデラル−モーグル コーポレイション | Powder metal composition for wear and temperature resistant applications and method for producing the same |
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