JPS57134205A - Rolling device for pipe - Google Patents
Rolling device for pipeInfo
- Publication number
- JPS57134205A JPS57134205A JP56020329A JP2032981A JPS57134205A JP S57134205 A JPS57134205 A JP S57134205A JP 56020329 A JP56020329 A JP 56020329A JP 2032981 A JP2032981 A JP 2032981A JP S57134205 A JPS57134205 A JP S57134205A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- rolls
- mandrel
- rolling
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/78—Control of tube rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
- B21B17/06—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a discontinuous process
Abstract
PURPOSE:To make the thickness of a pipe more uniform in rolling the pipe with a pair of rolling rolls and a mandrel which are revolved respectively, by combining the movement of the mandrel in its axial line direction with the control for the respective revolving speeds of the rolls. CONSTITUTION:A pipe 5 guided by a mandrel 4 is rolled with rolling rolls 1a, 1b which are revolved in an arrow direction by means of motors 2a, 2b. At this time, the rotating speeds of the rolls 1a, 1b are controlled respectively, and the mandrel 4 is moved in an axial directon with a moving mechanism 6 so that the pipe 5 is rolled without producing any deviation in thickness. More specifically, the rolling torques exerted upon the rolls 1a, 1b in accordance with the applied voltage to the motors 2a, 2b are detected and from the difference thereof, the thickness deviation distributions of the upper, lower rolls parts 5a, 5b of the pipe are detected and the motors 2a, 2b, 7 are so controlled as to eliminate the thickness deviation of the pipe 5. According to the magnitude of the stresses accompanied with the deformation of the pipe 5, the rolls 1a, 1b are attached and detached with an oil hydraulic cyliner mechanism 10, a servovalve 12, a comparing adder 13, a setter 14, a displacement detector 15 and a pressure detector 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020329A JPS57134205A (en) | 1981-02-14 | 1981-02-14 | Rolling device for pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020329A JPS57134205A (en) | 1981-02-14 | 1981-02-14 | Rolling device for pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57134205A true JPS57134205A (en) | 1982-08-19 |
Family
ID=12024091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56020329A Pending JPS57134205A (en) | 1981-02-14 | 1981-02-14 | Rolling device for pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57134205A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174970A (en) * | 2018-08-22 | 2019-01-11 | 哈尔滨工业大学 | A kind of roll-forming method and device of the metal abnormity variable cross-section tubing based on hydroforming |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5248551A (en) * | 1975-10-16 | 1977-04-18 | Ishikawajima Harima Heavy Ind | Tube manufacturing device |
| JPS54126654A (en) * | 1978-03-15 | 1979-10-02 | Mitsubishi Heavy Ind Ltd | Method and apparatus for hot rolling of seamless pipe |
-
1981
- 1981-02-14 JP JP56020329A patent/JPS57134205A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5248551A (en) * | 1975-10-16 | 1977-04-18 | Ishikawajima Harima Heavy Ind | Tube manufacturing device |
| JPS54126654A (en) * | 1978-03-15 | 1979-10-02 | Mitsubishi Heavy Ind Ltd | Method and apparatus for hot rolling of seamless pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174970A (en) * | 2018-08-22 | 2019-01-11 | 哈尔滨工业大学 | A kind of roll-forming method and device of the metal abnormity variable cross-section tubing based on hydroforming |
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