JPS5522174A - Welded portion detector of electro-unite tube - Google Patents
Welded portion detector of electro-unite tubeInfo
- Publication number
- JPS5522174A JPS5522174A JP9572678A JP9572678A JPS5522174A JP S5522174 A JPS5522174 A JP S5522174A JP 9572678 A JP9572678 A JP 9572678A JP 9572678 A JP9572678 A JP 9572678A JP S5522174 A JPS5522174 A JP S5522174A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- electro
- welded portion
- coil
- unite
- 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
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To reduce the defect in an electro-unite tube by detecting the position mark, which is applied to the welded portion of the tube, so that the position of an annealing coil after the welding operation is controlled.
CONSTITUTION: The start and terminal ends of the welded portion of an electro- unite tube 1 are detected by an industrial TV so that magnetic position marks 9 and so on are applied to the tube 1 through a controller 11 and a magnetizer 8. Those marks are detected by a Hall element 12, which is placed at a preset position, and the torsion in the tube 1 is calculated by an arithmetic device 13 so that an annealing coil 5 is positioned to face the welded portion through a controlling circuit 14. By the automatic position control of the coil 5, the datisfactory annealing operation is performed to reduce generation of a defective electro-unite tube. The detected signal of the mark 9 by a Hall element 15 is compared by a comparator circuit 17 with the output of the circuit 14 so that warning signals are generated is case the position discrepancy is large with respect to the welding portion of the coil 5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9572678A JPS5835246B2 (en) | 1978-08-05 | 1978-08-05 | ERW pipe weld detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9572678A JPS5835246B2 (en) | 1978-08-05 | 1978-08-05 | ERW pipe weld detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5522174A true JPS5522174A (en) | 1980-02-16 |
JPS5835246B2 JPS5835246B2 (en) | 1983-08-01 |
Family
ID=14145469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9572678A Expired JPS5835246B2 (en) | 1978-08-05 | 1978-08-05 | ERW pipe weld detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5835246B2 (en) |
-
1978
- 1978-08-05 JP JP9572678A patent/JPS5835246B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5835246B2 (en) | 1983-08-01 |
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