JPS5789412A - Preparation of iron-containing sintered product - Google Patents
Preparation of iron-containing sintered productInfo
- Publication number
- JPS5789412A JPS5789412A JP16640580A JP16640580A JPS5789412A JP S5789412 A JPS5789412 A JP S5789412A JP 16640580 A JP16640580 A JP 16640580A JP 16640580 A JP16640580 A JP 16640580A JP S5789412 A JPS5789412 A JP S5789412A
- Authority
- JP
- Japan
- Prior art keywords
- outside part
- iron
- outside
- oxides
- oxidation
- 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
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To provide an iron-containing sintered product having both inside and outside parts bonded at low cost, by combining the outside part comprising a compression-mold form containing oxides with the inside part comprising a molded form of iron powder to sinter the both parts.
CONSTITUTION: Iron-containing powder is pressed to form the outside part and inside part that are compression molded forms. Subsequently, the outside part is oxidation-treated e.g. steam-treated to form oxides (iron oxides) in the pores of outside part. The oxidation-treated outside part and the inside part are combined to be sintered. In the sintering, oxides formed by the oxidation-treatment in the outside part promote a reducing reaction, and the sintering of outside part is accelerated by the reduction energy. As a result, the outside part shrinks with a large shrinkage factor so that it is firmly bonded with the inside part. Thus, the final product having the outside part and inside part bonded unitarily in a body is obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16640580A JPS5789412A (en) | 1980-11-26 | 1980-11-26 | Preparation of iron-containing sintered product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16640580A JPS5789412A (en) | 1980-11-26 | 1980-11-26 | Preparation of iron-containing sintered product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5789412A true JPS5789412A (en) | 1982-06-03 |
Family
ID=15830804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16640580A Pending JPS5789412A (en) | 1980-11-26 | 1980-11-26 | Preparation of iron-containing sintered product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5789412A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539197A (en) * | 1982-07-13 | 1985-09-03 | Hitachi Powdered Metals Co., Ltd. | Process for making sintered composite mechanical parts |
| US4690320A (en) * | 1984-02-24 | 1987-09-01 | Mazda Motor Corporation | Method of bonding porous metallic members and product made by the method |
| WO1993007979A1 (en) * | 1991-10-21 | 1993-04-29 | Pacific Metals Co., Ltd. | Method of making sintered metallic body and said body obtained through said method |
-
1980
- 1980-11-26 JP JP16640580A patent/JPS5789412A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4539197A (en) * | 1982-07-13 | 1985-09-03 | Hitachi Powdered Metals Co., Ltd. | Process for making sintered composite mechanical parts |
| US4690320A (en) * | 1984-02-24 | 1987-09-01 | Mazda Motor Corporation | Method of bonding porous metallic members and product made by the method |
| WO1993007979A1 (en) * | 1991-10-21 | 1993-04-29 | Pacific Metals Co., Ltd. | Method of making sintered metallic body and said body obtained through said method |
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