JPS5594402A - Production of hermetic sintered product - Google Patents

Production of hermetic sintered product

Info

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
Application number
JP250379A
Other languages
Japanese (ja)
Inventor
Shuji Matsumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP250379A priority Critical patent/JPS5594402A/en
Publication of JPS5594402A publication Critical patent/JPS5594402A/en
Pending legal-status Critical Current

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  • 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
JP250379A 1979-01-12 1979-01-12 Production of hermetic sintered product Pending JPS5594402A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57108244A (en) * 1980-12-24 1982-07-06 Hitachi Powdered Metals Co Ltd Member of moving valve mechanism of internal combustion engine
JPS57108243A (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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57108244A (en) * 1980-12-24 1982-07-06 Hitachi Powdered Metals Co Ltd Member of moving valve mechanism of internal combustion engine
JPS57108243A (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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