JPS57106415A - Continuous manufacture of seamless steel pipe having outer diameter of different dimension - Google Patents
Continuous manufacture of seamless steel pipe having outer diameter of different dimensionInfo
- Publication number
- JPS57106415A JPS57106415A JP18276680A JP18276680A JPS57106415A JP S57106415 A JPS57106415 A JP S57106415A JP 18276680 A JP18276680 A JP 18276680A JP 18276680 A JP18276680 A JP 18276680A JP S57106415 A JPS57106415 A JP S57106415A
- Authority
- JP
- Japan
- Prior art keywords
- sizer
- pipe
- rolling
- steel pipe
- wall thickness
- 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
Abstract
PURPOSE: To efficiently manufacture a plurality of titled steel pipes from one mother pipe, by rolling a pipe to the prescribed wall thickness with a continuous steel pipe rolling mill and changing a screw down position of a sizer at the outer diam. adjusting stage by the sizer.
CONSTITUTION: A shell to be rolled into a pipe having the prescribed wall thickness by a continuous steel pipe rolling mill is bited by a sizer to be rolled. At this time, the outer diam. of a product is changed on the way of rolling by changing the set values of roll gap and roll rotating speed of the sizer during the rolling sizer. Further, the constant or reduced wall thickness of pipe is obtained by adjusting the amount of stretch after and before the outer diam. is changed respectively, under the rolling reduction by a sizer with proper stretch.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18276680A JPS6012130B2 (en) | 1980-12-25 | 1980-12-25 | Continuous manufacturing method for seamless steel pipes with different outside diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18276680A JPS6012130B2 (en) | 1980-12-25 | 1980-12-25 | Continuous manufacturing method for seamless steel pipes with different outside diameters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57106415A true JPS57106415A (en) | 1982-07-02 |
| JPS6012130B2 JPS6012130B2 (en) | 1985-03-30 |
Family
ID=16124044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18276680A Expired JPS6012130B2 (en) | 1980-12-25 | 1980-12-25 | Continuous manufacturing method for seamless steel pipes with different outside diameters |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6012130B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855321A (en) * | 2016-05-19 | 2016-08-17 | 常熟市异型钢管有限公司 | Preparation method of multi-head internal thread seamless steel tube for high pressure boiler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014441B (en) * | 2019-12-30 | 2021-04-27 | 常熟希那基汽车零件有限公司 | Manufacturing process of step tube |
-
1980
- 1980-12-25 JP JP18276680A patent/JPS6012130B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855321A (en) * | 2016-05-19 | 2016-08-17 | 常熟市异型钢管有限公司 | Preparation method of multi-head internal thread seamless steel tube for high pressure boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6012130B2 (en) | 1985-03-30 |
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