JPS56169702A - Manufacture of high density sintered parts - Google Patents
Manufacture of high density sintered partsInfo
- Publication number
- JPS56169702A JPS56169702A JP7154780A JP7154780A JPS56169702A JP S56169702 A JPS56169702 A JP S56169702A JP 7154780 A JP7154780 A JP 7154780A JP 7154780 A JP7154780 A JP 7154780A JP S56169702 A JPS56169702 A JP S56169702A
- Authority
- JP
- Japan
- Prior art keywords
- density
- ringed
- sintered
- powder
- sintered parts
- 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
- Forging (AREA)
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To easily manufacture a high density sintered parts by a method in which a large number of compacted powder metal moldings are connected in a ring form, sintered, treated by a rotary forging machine for more increasing its density, and resintered, and then the sintered parts in connected state are separated into each part.
CONSTITUTION: Low-alloy steel powder of a grain size of 100 mesh size, low-carbon ferromolybdemum powder of a grain size of 100 mesh size, and fine graphite powder as raw materials are mixed with 0.75% (based on total weight of raw materials) zinc stearate as a lubricant and then molded into a ringed compacted metal powder molding 3 connected by 12 sliding pads 1 with cutting allowance. The ringed molding 3 is heated at 650°C in hydrogen gas to remove zinc stearate and then heated under vacuum to manufacture a ringed sintered preform having a density of approx. 6.7g/cc. Then, the ringed sintered preform is compressed in a rotary forging mold to increase its density to 7.65g/cc, resintered at 1,150°C under vacuum, and then cut at the cutting allowance 4 to obtain 12 high-density sintered parts.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7154780A JPS56169702A (en) | 1980-05-30 | 1980-05-30 | Manufacture of high density sintered parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7154780A JPS56169702A (en) | 1980-05-30 | 1980-05-30 | Manufacture of high density sintered parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56169702A true JPS56169702A (en) | 1981-12-26 |
| JPS6148564B2 JPS6148564B2 (en) | 1986-10-24 |
Family
ID=13463865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7154780A Granted JPS56169702A (en) | 1980-05-30 | 1980-05-30 | Manufacture of high density sintered parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56169702A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504441A (en) * | 1983-08-01 | 1985-03-12 | Amsted Industries Incorporated | Method of preventing segregation of metal powders |
| CN105108157A (en) * | 2015-09-24 | 2015-12-02 | 安平县德益金属复合材料有限公司 | Preparation method for double-metal composite sliding plate of automobile air-conditioning compressor and moulds |
-
1980
- 1980-05-30 JP JP7154780A patent/JPS56169702A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504441A (en) * | 1983-08-01 | 1985-03-12 | Amsted Industries Incorporated | Method of preventing segregation of metal powders |
| CN105108157A (en) * | 2015-09-24 | 2015-12-02 | 安平县德益金属复合材料有限公司 | Preparation method for double-metal composite sliding plate of automobile air-conditioning compressor and moulds |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6148564B2 (en) | 1986-10-24 |
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