JPS6479302A - Reduced iron powder having excellent machinability and mechanical properties after sintering - Google Patents
Reduced iron powder having excellent machinability and mechanical properties after sinteringInfo
- Publication number
- JPS6479302A JPS6479302A JP63038705A JP3870588A JPS6479302A JP S6479302 A JPS6479302 A JP S6479302A JP 63038705 A JP63038705 A JP 63038705A JP 3870588 A JP3870588 A JP 3870588A JP S6479302 A JPS6479302 A JP S6479302A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- reduced iron
- iron powder
- sintering
- reduction
- 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
- 239000000843 powder Substances 0.000 title abstract 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 6
- 238000005245 sintering Methods 0.000 title abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 239000002131 composite material Substances 0.000 abstract 3
- 229910017970 MgO-SiO2 Inorganic materials 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000454 talc Substances 0.000 abstract 1
- 229910052623 talc Inorganic materials 0.000 abstract 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
PURPOSE:To obtain reduced iron powder having excellent machinability and mechanical properties after sintering by subjecting the powder to rough reduction and subsequent finish reduction and incorporating composite oxide powder of an MgO-SiO2 system or glass powder as a free-cutting component at a specific ratio therein. CONSTITUTION:Mill scale, etc., are subjected to the rough reduction and the subsequent finish reduction to obtain the reduced iron powder for producing sintered mechanical parts, etc. The free-cutting component consisting of the composite oxide powder of the MgO-SiO2 system and/or glass powder is added at the prescribed ratio to the reducing raw material prior to the rough reduction or finish reduction of the reduced iron powder. Talc, etc., having about 0.5-5.0 molar ratio of MgO/SiO2 is adequate as the above-mentioned composite oxide of the MgO SiO2 system. The preferable grain size of the above-mentioned free-cutting component to be added is about <=0.325 mesh. The above-mentioned free-cutting component is thereby incorporated at 0.1-15wt.% into the reduced iron powder in the form of existing internally in the grains of the powder. The reduced iron powder obtd. in such a manner is harmless at the time of sintering and the sintered parts having the excellent machinability and mechanical properties are obtd. after sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63038705A JPH0745681B2 (en) | 1987-06-18 | 1988-02-23 | Reduced iron powder with excellent machinability and mechanical properties after sintering |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-150314 | 1987-06-18 | ||
| JP15031487 | 1987-06-18 | ||
| JP63038705A JPH0745681B2 (en) | 1987-06-18 | 1988-02-23 | Reduced iron powder with excellent machinability and mechanical properties after sintering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6479302A true JPS6479302A (en) | 1989-03-24 |
| JPH0745681B2 JPH0745681B2 (en) | 1995-05-17 |
Family
ID=26377984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63038705A Expired - Lifetime JPH0745681B2 (en) | 1987-06-18 | 1988-02-23 | Reduced iron powder with excellent machinability and mechanical properties after sintering |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0745681B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5585749B1 (en) * | 2013-07-18 | 2014-09-10 | Ｊｆｅスチール株式会社 | Mixed powder for powder metallurgy, method for producing the same, and method for producing a sintered body made of iron-based powder |
| JP2015157974A (en) * | 2014-02-21 | 2015-09-03 | Ｊｆｅスチール株式会社 | Mixed powder for powder metallurgy, production method thereof and iron-based powder-made sintered body |
| EP3305928A4 (en) * | 2016-02-08 | 2018-07-11 | Sumitomo Electric Industries, Ltd. | Iron-based powder for powder metallurgy, and method for manufacturing iron-based powder for powder metallurgy |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7227089B2 (en) * | 2019-06-28 | 2023-02-21 | 株式会社ダイヤメット | Materials used for forming cutting tools and their surface protective coatings |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4881712A (en) * | 1972-02-05 | 1973-11-01 | ||
| JPS56136953A (en) * | 1980-03-26 | 1981-10-26 | Kobe Steel Ltd | Manufacture of metal sintered body |
| JPS60145353A (en) * | 1983-12-30 | 1985-07-31 | Dowa Teppun Kogyo Kk | Manufacture of iron-base sintered body having superior machinability |
-
1988
- 1988-02-23 JP JP63038705A patent/JPH0745681B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4881712A (en) * | 1972-02-05 | 1973-11-01 | ||
| JPS56136953A (en) * | 1980-03-26 | 1981-10-26 | Kobe Steel Ltd | Manufacture of metal sintered body |
| JPS60145353A (en) * | 1983-12-30 | 1985-07-31 | Dowa Teppun Kogyo Kk | Manufacture of iron-base sintered body having superior machinability |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5585749B1 (en) * | 2013-07-18 | 2014-09-10 | Ｊｆｅスチール株式会社 | Mixed powder for powder metallurgy, method for producing the same, and method for producing a sintered body made of iron-based powder |
| WO2015008406A1 (en) * | 2013-07-18 | 2015-01-22 | Ｊｆｅスチール株式会社 | Mixed powder for powder metallurgy, method for producing same, and method for producing sintered compact of iron-based powder formulation |
| JP2015038239A (en) * | 2013-07-18 | 2015-02-26 | Ｊｆｅスチール株式会社 | Mixed powder for powder metallurgy, method for producing the same and sintered compact made of iron base powder |
| CN105377477A (en) * | 2013-07-18 | 2016-03-02 | 杰富意钢铁株式会社 | Mixed powder for powder metallurgy, method of manufacturing same, and method of manufacturing iron-based powder sintered body |
| JP2015157974A (en) * | 2014-02-21 | 2015-09-03 | Ｊｆｅスチール株式会社 | Mixed powder for powder metallurgy, production method thereof and iron-based powder-made sintered body |
| EP3305928A4 (en) * | 2016-02-08 | 2018-07-11 | Sumitomo Electric Industries, Ltd. | Iron-based powder for powder metallurgy, and method for manufacturing iron-based powder for powder metallurgy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0745681B2 (en) | 1995-05-17 |
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