JPS5779022A - Straightening roll of straightening machine - Google Patents
Straightening roll of straightening machineInfo
- Publication number
- JPS5779022A JPS5779022A JP15450280A JP15450280A JPS5779022A JP S5779022 A JPS5779022 A JP S5779022A JP 15450280 A JP15450280 A JP 15450280A JP 15450280 A JP15450280 A JP 15450280A JP S5779022 A JPS5779022 A JP S5779022A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- straightening
- axial line
- rolls
- roll
- 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
Abstract
PURPOSE: To perform straightening of steel pipe without leaving any impression by making an arrangement that the radius of each part along the direction of of the axis of plural straightening rolls of the bend straightening machine for steel pipe is equalized to the separated dimension between the axial line and a previously calculated deflection curve.
CONSTITUTION: A straightening treatment of a metallic pipe P is performed at the final stage of the manufacturing process of metallic pipe, such as electric welded pipe, forged pipe, seamless pipe. The straightening treatment is performed with a straightening machine of so called 2-1-2-1 roll type composed of alternately installed one type of stand provided with two straigtening rolls 1 and 1 and another type of stand provided with one straightening roll 2 by rotating the metallic pipe P around the axial line while it is moved along the direction of the axial line. Radii of each part along the direction of the axial line of the hand-drum-shaped straightening rolls 1 and 1 are equalized to the separated dimension betwen the axial line and a previously calculated deflection curve of the pipe P. Since a cointinous linear contacting condition is maintained between the pipe P and the straightening rolls 1 and 2, torque around the axial line becomes larger and the pipe P can be straightened without leaving any impression on the pipe P.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15450280A JPS5779022A (en) | 1980-10-31 | 1980-10-31 | Straightening roll of straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15450280A JPS5779022A (en) | 1980-10-31 | 1980-10-31 | Straightening roll of straightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5779022A true JPS5779022A (en) | 1982-05-18 |
Family
ID=15585637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15450280A Pending JPS5779022A (en) | 1980-10-31 | 1980-10-31 | Straightening roll of straightening machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5779022A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216817A (en) * | 1985-07-12 | 1987-01-26 | Nippon Kokan Kk <Nkk> | Straightening method for long-sized tube and bar stock |
| JPS62197222A (en) * | 1986-02-20 | 1987-08-31 | Nippon Steel Corp | Straightening method for twist of electric welded tube |
| CN116329332A (en) * | 2023-04-27 | 2023-06-27 | 江苏京生管业有限公司 | Stainless steel tube straightening machine |
-
1980
- 1980-10-31 JP JP15450280A patent/JPS5779022A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216817A (en) * | 1985-07-12 | 1987-01-26 | Nippon Kokan Kk <Nkk> | Straightening method for long-sized tube and bar stock |
| JPH0257452B2 (en) * | 1985-07-12 | 1990-12-05 | Nippon Kokan Kk | |
| JPS62197222A (en) * | 1986-02-20 | 1987-08-31 | Nippon Steel Corp | Straightening method for twist of electric welded tube |
| JPH0311851B2 (en) * | 1986-02-20 | 1991-02-18 | Nippon Steel Corp | |
| CN116329332A (en) * | 2023-04-27 | 2023-06-27 | 江苏京生管业有限公司 | Stainless steel tube straightening machine |
| CN116329332B (en) * | 2023-04-27 | 2024-02-09 | 江苏京生管业有限公司 | Stainless steel tube straightening machine |
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