JPS56102501A - Manufacture of sintered parts - Google Patents
Manufacture of sintered partsInfo
- Publication number
- JPS56102501A JPS56102501A JP259780A JP259780A JPS56102501A JP S56102501 A JPS56102501 A JP S56102501A JP 259780 A JP259780 A JP 259780A JP 259780 A JP259780 A JP 259780A JP S56102501 A JPS56102501 A JP S56102501A
- Authority
- JP
- Japan
- Prior art keywords
- sintered
- temp
- mold
- sintered parts
- stainless steel
- 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 manufacture sintered parts having excellent corrosion resinstance and mirror polish property, by sintering austenite stainless steel powder to relatively low density after it is compression formed, then by compressing it successively once again at a specific condition.
CONSTITUTION: Austenite stainless steel powder ≤60 meshes is cold compression formed, then it is sintered in the range of 1,000W1,300°C temp. to form blank of relatively low density of 6.5W7.2g/cm3. Said blank is successively compressed once again in a mold for the secondary formation at ≤600°C temp. and at 2W30% upsetting ratio, or volume reduction ratio, so as to increase the density at the surface in contact with the mold, hence excellent mirror polish property and corrosion resistance of the surface is obtained by pore sealing and work hardening. The sintered parts produced by this method is suitable for the exterior parts of timepieces.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP259780A JPS56102501A (en) | 1980-01-16 | 1980-01-16 | Manufacture of sintered parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP259780A JPS56102501A (en) | 1980-01-16 | 1980-01-16 | Manufacture of sintered parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56102501A true JPS56102501A (en) | 1981-08-17 |
Family
ID=11533787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP259780A Pending JPS56102501A (en) | 1980-01-16 | 1980-01-16 | Manufacture of sintered parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56102501A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5940099A (en) * | 1993-08-15 | 1999-08-17 | Ink Jet Technology, Inc. & Scitex Corporation Ltd. | Ink jet print head with ink supply through porous medium |
| CN1330444C (en) * | 2001-06-13 | 2007-08-08 | 赫加奈斯公司 | High density stainlss steel products and method for preparation thereof |
| EP3486009A1 (en) * | 2017-11-17 | 2019-05-22 | The Swatch Group Research and Development Ltd | Method for sintering an austenitic stainless steel |
| US20210198763A1 (en) * | 2019-12-26 | 2021-07-01 | Seiko Watch Kabushiki Kaisha | Personal ornament and method for producing personal ornament |
-
1980
- 1980-01-16 JP JP259780A patent/JPS56102501A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5940099A (en) * | 1993-08-15 | 1999-08-17 | Ink Jet Technology, Inc. & Scitex Corporation Ltd. | Ink jet print head with ink supply through porous medium |
| US6481074B1 (en) | 1993-08-15 | 2002-11-19 | Aprion Digital Ltd. | Method of producing an ink jet print head |
| US6766567B2 (en) | 1993-08-25 | 2004-07-27 | Aprion Digital Ltd. | Ink jet print head having a porous ink supply layer |
| CN1330444C (en) * | 2001-06-13 | 2007-08-08 | 赫加奈斯公司 | High density stainlss steel products and method for preparation thereof |
| EP3486009A1 (en) * | 2017-11-17 | 2019-05-22 | The Swatch Group Research and Development Ltd | Method for sintering an austenitic stainless steel |
| US11185917B2 (en) | 2017-11-17 | 2021-11-30 | The Swatch Group Research And Development Ltd | Austenitic stainless steel workpiece |
| US20210198763A1 (en) * | 2019-12-26 | 2021-07-01 | Seiko Watch Kabushiki Kaisha | Personal ornament and method for producing personal ornament |
| US11618930B2 (en) * | 2019-12-26 | 2023-04-04 | Seiko Watch Kabushiki Kaisha | Personal ornament and method for producing personal ornament |
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