| 摘要 |
A longitudinal seam welding apparatus for welding a longitudinal joint of a cylindrical main body of an electric motor frame comprises, on a base, a rigid tubular welding jig including a guide for engaging the joint of the frame main body to be welded for longitudinally guiding the frame main body, a hydraulic pusher for passing the main frame body through the welding jig, and a welding torch for seam welding the longitudinal joint of the frame main body.
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