JPH0576382B2 - - Google Patents
Info
- Publication number
- JPH0576382B2 JPH0576382B2 JP19863385A JP19863385A JPH0576382B2 JP H0576382 B2 JPH0576382 B2 JP H0576382B2 JP 19863385 A JP19863385 A JP 19863385A JP 19863385 A JP19863385 A JP 19863385A JP H0576382 B2 JPH0576382 B2 JP H0576382B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- pipe
- double
- diameter
- heating
- 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.)
- Expired - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 claims description 61
- 238000001816 cooling Methods 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 38
- 238000004519 manufacturing process Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 description 23
- 230000008569 process Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 230000009467 reduction Effects 0.000 description 9
- 230000008602 contraction Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Heat Treatment Of Articles (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60198633A JPS6261721A (ja) | 1985-09-10 | 1985-09-10 | 二重管の製造方法及び装置 |
| AU58423/86A AU573093B2 (en) | 1985-06-07 | 1986-06-04 | Localised diameter reduction of tubing |
| DE8686107709T DE3674951D1 (de) | 1985-06-07 | 1986-06-06 | Thermoplastisches verfahren zum verringern des durchmessers eines metallischen rohrs. |
| US06/871,917 US4727641A (en) | 1985-06-07 | 1986-06-06 | Thermoplastic method of reducing the diameter of a metal tube |
| CA000510978A CA1260551A (en) | 1985-06-07 | 1986-06-06 | Thermoplastic method of reducing the diameter of a metal tube |
| EP86107709A EP0206048B1 (en) | 1985-06-07 | 1986-06-06 | Thermoplastic method of reducing the diameter of a metal tube |
| CN86103742.1A CN1003532B (zh) | 1985-06-07 | 1986-06-07 | 缩小金属管直径的热塑方法 |
| KR1019860004518A KR900004101B1 (ko) | 1985-06-07 | 1986-06-07 | 금속관의 직경을 축소시키는 열소성 방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60198633A JPS6261721A (ja) | 1985-09-10 | 1985-09-10 | 二重管の製造方法及び装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6261721A JPS6261721A (ja) | 1987-03-18 |
| JPH0576382B2 true JPH0576382B2 (enrdf_load_stackoverflow) | 1993-10-22 |
Family
ID=16394446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60198633A Granted JPS6261721A (ja) | 1985-06-07 | 1985-09-10 | 二重管の製造方法及び装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6261721A (enrdf_load_stackoverflow) |
-
1985
- 1985-09-10 JP JP60198633A patent/JPS6261721A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6261721A (ja) | 1987-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |