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Manufacturing method monitoring method for ERW welded pipe, manufacturing status monitoring device for ERW welded pipe, and method for manufacturing ERW welded pipe
Manufacturing method monitoring method for ERW welded pipe, manufacturing status monitoring device for ERW welded pipe, and method for manufacturing ERW welded pipe
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机译:ERW焊管的制造方法监视方法,ERW焊管的制造状态监视装置以及ERW焊管的制造方法
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摘要
Monitoring the production status of ERW welded pipes, which are manufactured by forming a strip-shaped steel strip into a cylindrical shape and butt-welding both ends of the steel strip in the longitudinal direction along the longitudinal direction It is apparatus 1, Comprising: It has the opening part 2a which opposes the area | region where the both ends of the width direction of a steel strip are butt-welded, and injects the said area | region by injecting an inert gas from the opening part 2a to the said area | region And an analysis unit 4 that determines the quality of the butt weld based on the image photographed by the imaging unit 3.
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