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JPS5451909A - Hot hydrostatic press method - Google Patents

Hot hydrostatic press method

Info

Publication number
JPS5451909A
JPS5451909A JP11831177A JP11831177A JPS5451909A JP S5451909 A JPS5451909 A JP S5451909A JP 11831177 A JP11831177 A JP 11831177A JP 11831177 A JP11831177 A JP 11831177A JP S5451909 A JPS5451909 A JP S5451909A
Authority
JP
Japan
Prior art keywords
powder
metal
vessel
nitrogen
affinitive
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
Application number
JP11831177A
Other languages
Japanese (ja)
Other versions
JPS5618643B2 (en
Inventor
Masato Moritoki
Hiroshi Takigawa
Yoichi Inoue
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP11831177A priority Critical patent/JPS5451909A/en
Publication of JPS5451909A publication Critical patent/JPS5451909A/en
Publication of JPS5618643B2 publication Critical patent/JPS5618643B2/ja
Granted legal-status Critical Current

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  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To simply produce a high density sintered body with no pore, by filling a powder metallic material containing at least one of nitrogen affinitive element into a vessel, and by performing hot hydrostatic press (HIP) without deaeration.
CONSTITUTION: The alloy, high speed steel or cast iron of Fe, Ni, Co, Ti, etc. is changed into nitrogen affinitive metallic powder by means of a nitrogen gas atomization method. The powder metal is filled into a seal vessel made of metal, glass or the complex material of metal and glass. In this case, the powder metal is filled at not less than 0.65 filling rate in response to the oxygen concn. and density of the powder material. After the material is preheated at not less than 800°C - preferably, 1000W1100°C - without deaerating air in the vessel, the material is HIP treated, thus producing sintered products. Products have extremely high density, and ones with not more than 150ppm oxygen content can simply be manufactured
COPYRIGHT: (C)1979,JPO&Japio
JP11831177A 1977-09-30 1977-09-30 Hot hydrostatic press method Granted JPS5451909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11831177A JPS5451909A (en) 1977-09-30 1977-09-30 Hot hydrostatic press method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11831177A JPS5451909A (en) 1977-09-30 1977-09-30 Hot hydrostatic press method

Publications (2)

Publication Number Publication Date
JPS5451909A true JPS5451909A (en) 1979-04-24
JPS5618643B2 JPS5618643B2 (en) 1981-04-30

Family

ID=14733527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11831177A Granted JPS5451909A (en) 1977-09-30 1977-09-30 Hot hydrostatic press method

Country Status (1)

Country Link
JP (1) JPS5451909A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832320A (en) * 1981-08-20 1983-02-25 オムロン株式会社 Time limiting relay
JPS58162540U (en) * 1982-04-22 1983-10-29 オムロン株式会社 timer structure
JPS58164157U (en) * 1982-04-26 1983-11-01 オムロン株式会社 time switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955508A (en) * 1972-06-12 1974-05-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955508A (en) * 1972-06-12 1974-05-29

Also Published As

Publication number Publication date
JPS5618643B2 (en) 1981-04-30

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