JPS55164003A - Manufacture of sintered iron parts - Google Patents
Manufacture of sintered iron partsInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5413932U (en) * | 1977-07-01 | 1979-01-29 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5413932B2 (en) * | 1973-10-17 | 1979-06-04 |
-
1979
- 1979-06-08 JP JP7198879A patent/JPS55164003A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5413932U (en) * | 1977-07-01 | 1979-01-29 |
Cited By (3)
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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