JPS55164003A - Manufacture of sintered iron parts - Google Patents

Manufacture of sintered iron parts

Info

Publication number
JPS55164003A
JPS55164003A JP7198879A JP7198879A JPS55164003A JP S55164003 A JPS55164003 A JP S55164003A JP 7198879 A JP7198879 A JP 7198879A JP 7198879 A JP7198879 A JP 7198879A JP S55164003 A JPS55164003 A JP S55164003A
Authority
JP
Japan
Prior art keywords
atmosphere
sintered iron
cooled
nonoxidative
heated
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
JP7198879A
Other languages
Japanese (ja)
Other versions
JPS6152203B2 (en
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 JP7198879A priority Critical patent/JPS55164003A/en
Publication of JPS55164003A publication Critical patent/JPS55164003A/en
Publication of JPS6152203B2 publication Critical patent/JPS6152203B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture the sintered iron parts which is good in oil retentivity, wear resistance, rust proofness and hardness of surface by a procedure in which a sintered iron part is heated in a nonoxidative atmosphere, oxidized in an oxidative atmosphere while being cooled, heated in a nonoxidative atmosphere, and then cooled.
CONSTITUTION: The sintered iron part is heated at approx. 700W1,000°C in a nonoxidative atmosphere, cooled to approx. 500W300°C in the air and oxidized, and then cooled to room temperature in a nonoxidative atmosphere. If necessary, an operation involving heating the part in a nonoxidative atmosphere and oxidizing it in an oxidative atmosphere is repeatedly made in order to obtain a thicker oxide film. The sintered iron part subjected to a oxidizing treatment in this way is heated to a fixed temperature in a nonoxidative gas atmosphere and then rapidly cooled to harden the surface of the part in order to raise the wear resistance of the sintered iron parts.
COPYRIGHT: (C)1980,JPO&Japio
JP7198879A 1979-06-08 1979-06-08 Manufacture of sintered iron parts Granted JPS55164003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7198879A JPS55164003A (en) 1979-06-08 1979-06-08 Manufacture of sintered iron parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7198879A JPS55164003A (en) 1979-06-08 1979-06-08 Manufacture of sintered iron parts

Publications (2)

Publication Number Publication Date
JPS55164003A true JPS55164003A (en) 1980-12-20
JPS6152203B2 JPS6152203B2 (en) 1986-11-12

Family

ID=13476342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7198879A Granted JPS55164003A (en) 1979-06-08 1979-06-08 Manufacture of sintered iron parts

Country Status (1)

Country Link
JP (1) JPS55164003A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6244505A (en) * 1985-08-21 1987-02-26 Toshiba Corp Manufacture of iron sintered parts
JP2006037234A (en) * 2004-07-29 2006-02-09 Caterpillar Inc Steam oxidation of powder metal component

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413932U (en) * 1977-07-01 1979-01-29

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413932B2 (en) * 1973-10-17 1979-06-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413932U (en) * 1977-07-01 1979-01-29

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6244505A (en) * 1985-08-21 1987-02-26 Toshiba Corp Manufacture of iron sintered parts
JPH0557322B2 (en) * 1985-08-21 1993-08-23 Tokyo Shibaura Electric Co
JP2006037234A (en) * 2004-07-29 2006-02-09 Caterpillar Inc Steam oxidation of powder metal component

Also Published As

Publication number Publication date
JPS6152203B2 (en) 1986-11-12

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