JPS5573846A - Steel having partial form memory effect - Google Patents
Steel having partial form memory effectInfo
- Publication number
- JPS5573846A JPS5573846A JP14664878A JP14664878A JPS5573846A JP S5573846 A JPS5573846 A JP S5573846A JP 14664878 A JP14664878 A JP 14664878A JP 14664878 A JP14664878 A JP 14664878A JP S5573846 A JPS5573846 A JP S5573846A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- point
- temp
- room temp
- memory effect
- 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
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE: To manufacture a steel having superior partial form memory effect by adding a specified amt. of Mn to Fe.
CONSTITUTION: 15.9W30.0% Mn is added to a low carbon low silicon steel, whereby the steel becomes of such a component range that the Ms point is room temp. or above and the As point is made as low as possible. After applying a plastic working strain at room temp. the steel is heated to the As point or above and cooled to room temp. below the Ms point to provide superior partial form memory effect. Using this steel a bolt or the like is manufactured. When this bolt is held with a nut, heated to 375°C, kept at the temp. for 20min, and cooled to room temp., the nut is slightly loosened in a loosening test by vibration. Since this steel has such properties as the expansion and shrinkage quantities are about twice or more as much as those of ordinary steel, large expansion and shrinkage are applied by making use of low temp. waste heat from a plant and turned into a rotary motion applicable to small size production of electric power.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14664878A JPS5573846A (en) | 1978-11-29 | 1978-11-29 | Steel having partial form memory effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14664878A JPS5573846A (en) | 1978-11-29 | 1978-11-29 | Steel having partial form memory effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5573846A true JPS5573846A (en) | 1980-06-03 |
| JPS6133898B2 JPS6133898B2 (en) | 1986-08-05 |
Family
ID=15412475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14664878A Granted JPS5573846A (en) | 1978-11-29 | 1978-11-29 | Steel having partial form memory effect |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5573846A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780154A (en) * | 1984-09-07 | 1988-10-25 | Nippon Steel Corporation | Shape memory alloy and method for producing same |
| US4933027A (en) * | 1988-04-05 | 1990-06-12 | Nkk Corporation | Iron-based shape-memory alloy excellent in shape-memory property, corrosion resistance and high-temperature oxidation resistance |
| JP2009092456A (en) * | 2007-10-05 | 2009-04-30 | Techno Echo Kk | Water quality testing device and its cleaning method |
-
1978
- 1978-11-29 JP JP14664878A patent/JPS5573846A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780154A (en) * | 1984-09-07 | 1988-10-25 | Nippon Steel Corporation | Shape memory alloy and method for producing same |
| US4933027A (en) * | 1988-04-05 | 1990-06-12 | Nkk Corporation | Iron-based shape-memory alloy excellent in shape-memory property, corrosion resistance and high-temperature oxidation resistance |
| JP2009092456A (en) * | 2007-10-05 | 2009-04-30 | Techno Echo Kk | Water quality testing device and its cleaning method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6133898B2 (en) | 1986-08-05 |
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