JPS5561326A - Bending method for austenitic stainless cast steel pipe by high frequency induction heating - Google Patents
Bending method for austenitic stainless cast steel pipe by high frequency induction heatingInfo
- Publication number
- JPS5561326A JPS5561326A JP13252578A JP13252578A JPS5561326A JP S5561326 A JPS5561326 A JP S5561326A JP 13252578 A JP13252578 A JP 13252578A JP 13252578 A JP13252578 A JP 13252578A JP S5561326 A JPS5561326 A JP S5561326A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- austenitic stainless
- cast steel
- steel pipe
- stainless cast
- 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
- 238000005452 bending Methods 0.000 title abstract 5
- 229910001208 Crucible steel Inorganic materials 0.000 title abstract 3
- 238000010438 heat treatment Methods 0.000 title abstract 3
- 230000006698 induction Effects 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000000463 material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To continuously plastically deform the austenitic stainless cast steel pipe in order to make it bendable without causing cracks, by limiting the working condition.
CONSTITUTION: The austenitic stainless cast steel pipe P is passed through the guide rolls 1, 2, and the heater 3, and is clamped by the clamp 6 of the arm 5 at the suitable position. Next, the pipe P is continuously sent forward at a speed 0.2W 1.0mm/sec and is heated to 1,060W1,300°C by the heater 3; immediately after that, the pipe P is water cooled by the cooler 4. Hereupon, a bending moment is continuously given to the pipe P in the heating zone, in order to cause the continuous plastic deformation by the bending radius R, 1.5W3 times of the length of the pipe P; hereby, the bending work is applied to the pipe P. Besides, the reason of limiting the working condition is because that the slower the sending speed for the pipe P is, the less is the generation of cracks, however, if the speed exceeds the limited range, the productivity is lowered. And the smaller the bending radius is, the higher the heating temperature is required to be, however, if the temperature exceeds the limited range, the postwork material quality is deteriorated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13252578A JPS5561326A (en) | 1978-10-30 | 1978-10-30 | Bending method for austenitic stainless cast steel pipe by high frequency induction heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13252578A JPS5561326A (en) | 1978-10-30 | 1978-10-30 | Bending method for austenitic stainless cast steel pipe by high frequency induction heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5561326A true JPS5561326A (en) | 1980-05-09 |
Family
ID=15083330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13252578A Pending JPS5561326A (en) | 1978-10-30 | 1978-10-30 | Bending method for austenitic stainless cast steel pipe by high frequency induction heating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5561326A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256226A (en) * | 1987-04-14 | 1988-10-24 | Kubota Ltd | Manufacture of bend pipe with thickness deviation |
| JPH03264115A (en) * | 1990-03-14 | 1991-11-25 | Nkk Corp | Method for bending austenitic stainless steel plate containing boron |
| JP2009221520A (en) * | 2008-03-14 | 2009-10-01 | Sumitomo Metal Ind Ltd | Austenitic stainless steel pipe for high-frequency bending and bending method using the steel pipe |
| EP2149409A1 (en) * | 2007-04-04 | 2010-02-03 | Sumitomo Metal Industries, Ltd. | Manufacturing method, manufacturing apparatus and continuous manufacturing apparatus for bent products |
| EP2522442A4 (en) * | 2010-01-06 | 2018-03-21 | Nippon Steel & Sumitomo Metal Corporation | Flexure member manufacturing method and flexture member manufacturing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5059263A (en) * | 1973-09-28 | 1975-05-22 | ||
| JPS5138269A (en) * | 1974-09-30 | 1976-03-30 | Mitsubishi Heavy Ind Ltd | KOSHUHAKANETSUHOSHIKI NYORU KOKANNO MAGEHOHO |
| JPS5226352A (en) * | 1975-08-26 | 1977-02-26 | Daiichi Koshuha Kogyo Kk | Method of bending of metal pipe |
-
1978
- 1978-10-30 JP JP13252578A patent/JPS5561326A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5059263A (en) * | 1973-09-28 | 1975-05-22 | ||
| JPS5138269A (en) * | 1974-09-30 | 1976-03-30 | Mitsubishi Heavy Ind Ltd | KOSHUHAKANETSUHOSHIKI NYORU KOKANNO MAGEHOHO |
| JPS5226352A (en) * | 1975-08-26 | 1977-02-26 | Daiichi Koshuha Kogyo Kk | Method of bending of metal pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256226A (en) * | 1987-04-14 | 1988-10-24 | Kubota Ltd | Manufacture of bend pipe with thickness deviation |
| JPH03264115A (en) * | 1990-03-14 | 1991-11-25 | Nkk Corp | Method for bending austenitic stainless steel plate containing boron |
| EP2149409A1 (en) * | 2007-04-04 | 2010-02-03 | Sumitomo Metal Industries, Ltd. | Manufacturing method, manufacturing apparatus and continuous manufacturing apparatus for bent products |
| EP2149409A4 (en) * | 2007-04-04 | 2013-04-03 | Nippon Steel & Sumitomo Metal Corp | Manufacturing method, manufacturing apparatus and continuous manufacturing apparatus for bent products |
| JP2009221520A (en) * | 2008-03-14 | 2009-10-01 | Sumitomo Metal Ind Ltd | Austenitic stainless steel pipe for high-frequency bending and bending method using the steel pipe |
| EP2522442A4 (en) * | 2010-01-06 | 2018-03-21 | Nippon Steel & Sumitomo Metal Corporation | Flexure member manufacturing method and flexture member manufacturing device |
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