JPS5594402A - Production of hermetic sintered product - Google Patents
Production of hermetic sintered productInfo
- Publication number
- JPS5594402A JPS5594402A JP250379A JP250379A JPS5594402A JP S5594402 A JPS5594402 A JP S5594402A JP 250379 A JP250379 A JP 250379A JP 250379 A JP250379 A JP 250379A JP S5594402 A JPS5594402 A JP S5594402A
- Authority
- JP
- Japan
- Prior art keywords
- sintered body
- sintering
- eutectic reaction
- sintered
- mixture
- 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 produce the hermetic sintered body which does not require any special sealing by adding the materials which cause eutectic reaction at temperatures below sintering temperature to powder metals being sintering material then molding and sintering the mixture at the time of producing the sintered body.
CONSTITUTION: At the time of producing the sintered body which requires airtightness by powders of iron, copper, aluminum, stainless steel, etc., phosphorus, sulfur, boron, etc. which cause eutectic reaction with these base metals at below sintering temperature are added thereto at 0.5W2%. After these are sufficiently mixed, the mixture is pressure-molded to the specified shape and is then sintered. The additives cause eutectic reaction with the base metal powder and crystallizes melt as eutectic reaction crystals, thereby sealing the pores of the sintered body. If the sintered body is cooled after the sintering, the eutectic rection crystals solidify to seal the entire part of the pore inside, thus yielding the sintered product of superior airtightness.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP250379A JPS5594402A (en) | 1979-01-12 | 1979-01-12 | Production of hermetic sintered product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP250379A JPS5594402A (en) | 1979-01-12 | 1979-01-12 | Production of hermetic sintered product |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5594402A true JPS5594402A (en) | 1980-07-17 |
Family
ID=11531155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP250379A Pending JPS5594402A (en) | 1979-01-12 | 1979-01-12 | Production of hermetic sintered product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5594402A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57108243A (en) * | 1980-12-24 | 1982-07-06 | Hitachi Powdered Metals Co Ltd | Member of moving valve mechanism of internal combustion engine |
JPS57108244A (en) * | 1980-12-24 | 1982-07-06 | Hitachi Powdered Metals Co Ltd | Member of moving valve mechanism of internal combustion engine |
JPS6254042A (en) * | 1985-09-03 | 1987-03-09 | Mitsubishi Chem Ind Ltd | Manufacture of multicomponent metallic sintered body |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5350002A (en) * | 1976-10-20 | 1978-05-08 | Nippon Piston Ring Co Ltd | Slide member |
JPS5751462A (en) * | 1980-09-13 | 1982-03-26 | Matsushita Electric Works Ltd | Manufacture of decorative board |
-
1979
- 1979-01-12 JP JP250379A patent/JPS5594402A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5350002A (en) * | 1976-10-20 | 1978-05-08 | Nippon Piston Ring Co Ltd | Slide member |
JPS5751462A (en) * | 1980-09-13 | 1982-03-26 | Matsushita Electric Works Ltd | Manufacture of decorative board |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57108243A (en) * | 1980-12-24 | 1982-07-06 | Hitachi Powdered Metals Co Ltd | Member of moving valve mechanism of internal combustion engine |
JPS57108244A (en) * | 1980-12-24 | 1982-07-06 | Hitachi Powdered Metals Co Ltd | Member of moving valve mechanism of internal combustion engine |
JPS6034626B2 (en) * | 1980-12-24 | 1985-08-09 | 日立粉末冶金株式会社 | Valve mechanism parts for internal combustion engines |
JPS6034623B2 (en) * | 1980-12-24 | 1985-08-09 | 日立粉末冶金株式会社 | Internal combustion engine valve train components |
JPS6254042A (en) * | 1985-09-03 | 1987-03-09 | Mitsubishi Chem Ind Ltd | Manufacture of multicomponent metallic sintered body |
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