JPS5447841A - Automatic straightening apparatus - Google Patents
Automatic straightening apparatusInfo
- Publication number
- JPS5447841A JPS5447841A JP11423577A JP11423577A JPS5447841A JP S5447841 A JPS5447841 A JP S5447841A JP 11423577 A JP11423577 A JP 11423577A JP 11423577 A JP11423577 A JP 11423577A JP S5447841 A JPS5447841 A JP S5447841A
- Authority
- JP
- Japan
- Prior art keywords
- strain
- torch
- steel sheet
- occurred
- movement
- 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
Landscapes
- Straightening Metal Sheet-Like Bodies (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To remove automatically the strain, by heating the strain part generated to the steel sheet owing to the welding with the torch and, at the same time, by cooling that part with water.
CONSTITUTION: The rail body 2 is placed on the steel sheet 1 to which the strain has occurred owing to the welding and is fixed to the steel sheet 1 with the permanent magnets of the attracting fixing devices 10. The travelling machine 3 is placed on the rail 2 and the burner of the torch 5 and the cooling nozzle 6 equipped to the above machine 3 are arranged on the part at which the strain has occurred. The torch 5 is fired by being fed with acetylene gas and oxygen and the steel sheet at the part at which the strain has occurred, is heated to about 800°C with this torch. At this time, with the reciprocating movement of the arm body 4 holding the torch 5 to the left and right and the advancing movement of the travelling machine 3, the torch 5 conducts the movement having the form of a sine wave and heats uniformly the part of occurrence of the strain with a definite width. Then, by spouting water from the cooling nozzle 6 at the rear of the torch, the steel sheet is quenched to about 200°C. The steel sheet 1 at the part of occurrence of the strain contracts with a large coefficient of contraction, so that the strain of the steel sheet 1 is removed automatically.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11423577A JPS5447841A (en) | 1977-09-21 | 1977-09-21 | Automatic straightening apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11423577A JPS5447841A (en) | 1977-09-21 | 1977-09-21 | Automatic straightening apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5447841A true JPS5447841A (en) | 1979-04-14 |
Family
ID=14632630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11423577A Pending JPS5447841A (en) | 1977-09-21 | 1977-09-21 | Automatic straightening apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5447841A (en) |
-
1977
- 1977-09-21 JP JP11423577A patent/JPS5447841A/en active Pending
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