JPS5735601A - Sintering and forging method - Google Patents

Sintering and forging method

Info

Publication number
JPS5735601A
JPS5735601A JP11028880A JP11028880A JPS5735601A JP S5735601 A JPS5735601 A JP S5735601A JP 11028880 A JP11028880 A JP 11028880A JP 11028880 A JP11028880 A JP 11028880A JP S5735601 A JPS5735601 A JP S5735601A
Authority
JP
Japan
Prior art keywords
forging
powder
sintered bodies
coating
phenolic resin
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
JP11028880A
Other languages
Japanese (ja)
Inventor
Katsuji Kusaka
Takeo Hisada
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel 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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP11028880A priority Critical patent/JPS5735601A/en
Publication of JPS5735601A publication Critical patent/JPS5735601A/en
Pending legal-status Critical Current

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  • Forging (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To make forging in an ordinary forging process possible by coating a thermosetting phenolic resin on the surface of metallic powder-sintered bodies then heating and forging said bodies.
CONSTITUTION: A forging method of heating and forging metallic powder-sintered bodies after coating a thermosetting phenolic resin on the surface thereof. According to this method, the thermosetting phenolic resin carbonizes, and forms a uniform carbon coating on the surface of the powder-sintered bodies and this coating shuts off the powder-sintered bodies from the atmosphere in a furnace during heating or the atmospheric air during forging, thereby preventing oxidation and decarburization. To maintain the density ratio after forging at ≥95%, the density ratio of the powder-sintered bodies is preferably 50W95%, and when reheating after forging is required, it is preferable to adopt forging ratios so as to maintain the density ratio of the powder-sintered bodies after the forging at ≥95% in order to prevent the internal oxidation and decarburization by closing the greater part of the pores of the powder sintered bodies.
COPYRIGHT: (C)1982,JPO&Japio
JP11028880A 1980-08-13 1980-08-13 Sintering and forging method Pending JPS5735601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11028880A JPS5735601A (en) 1980-08-13 1980-08-13 Sintering and forging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11028880A JPS5735601A (en) 1980-08-13 1980-08-13 Sintering and forging method

Publications (1)

Publication Number Publication Date
JPS5735601A true JPS5735601A (en) 1982-02-26

Family

ID=14531893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11028880A Pending JPS5735601A (en) 1980-08-13 1980-08-13 Sintering and forging method

Country Status (1)

Country Link
JP (1) JPS5735601A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671928A (en) * 1984-04-26 1987-06-09 International Business Machines Corporation Method of controlling the sintering of metal particles
JPH0356602A (en) * 1989-07-26 1991-03-12 Mazda Motor Corp Forging method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671928A (en) * 1984-04-26 1987-06-09 International Business Machines Corporation Method of controlling the sintering of metal particles
JPH0356602A (en) * 1989-07-26 1991-03-12 Mazda Motor Corp Forging method

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