JPS5538931A - Production of raw material powder for powder metallurgy - Google Patents
Production of raw material powder for powder metallurgyInfo
- Publication number
- JPS5538931A JPS5538931A JP11006778A JP11006778A JPS5538931A JP S5538931 A JPS5538931 A JP S5538931A JP 11006778 A JP11006778 A JP 11006778A JP 11006778 A JP11006778 A JP 11006778A JP S5538931 A JPS5538931 A JP S5538931A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- amount
- raw material
- production
- carburizing
- 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
Abstract
PURPOSE: To obtain the captioned raw material powder suited for high density molding by simultaneously performing reduction and carburizing at 850W950°C in the specific atmosphere gas after spray drying and controlling the amount of oxygen and the amount of carbon to the specified amounts at the production of water atomized steel powder.
CONSTITUTION: Unreduced atomized steel powder is treated at temperatures of 850W950°C in a carburizing atmosphere such as of CO, CH4, etc. of 1.2W0.6wt% in carbon potential, whereby it is subjected to carburizing simultaneously with reducing. The resultant powder has the amount of oxygen 0.3W0.1wt% and the amount of carbon 1W0.6wt%, and this yields the raw material powder for powder metallurgy suited for production of high-density moldings. Unlike in conventional processes, costly hydrogen and ammonia gas as reducing atmosphere gas are not used and inexpensive modified gas is used and therefore cost may be reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11006778A JPS5538931A (en) | 1978-09-07 | 1978-09-07 | Production of raw material powder for powder metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11006778A JPS5538931A (en) | 1978-09-07 | 1978-09-07 | Production of raw material powder for powder metallurgy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5538931A true JPS5538931A (en) | 1980-03-18 |
Family
ID=14526211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11006778A Pending JPS5538931A (en) | 1978-09-07 | 1978-09-07 | Production of raw material powder for powder metallurgy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5538931A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02236455A (en) * | 1989-03-10 | 1990-09-19 | Jeol Ltd | Luminous reagent injector of automatic immunoassay device |
| JP2006204544A (en) * | 2005-01-28 | 2006-08-10 | Wayoo Kk | Article supporter |
| EP2044236A1 (en) * | 2006-07-24 | 2009-04-08 | Swagelok Company | Metal article with high interstitial content |
| JP2011063824A (en) * | 2009-09-15 | 2011-03-31 | Toyota Motor Corp | Method for producing powder for dust core |
-
1978
- 1978-09-07 JP JP11006778A patent/JPS5538931A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02236455A (en) * | 1989-03-10 | 1990-09-19 | Jeol Ltd | Luminous reagent injector of automatic immunoassay device |
| JP2006204544A (en) * | 2005-01-28 | 2006-08-10 | Wayoo Kk | Article supporter |
| EP2044236A1 (en) * | 2006-07-24 | 2009-04-08 | Swagelok Company | Metal article with high interstitial content |
| JP2011063824A (en) * | 2009-09-15 | 2011-03-31 | Toyota Motor Corp | Method for producing powder for dust core |
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