| 摘要 |
PURPOSE: A high-frequency electric resistance test welding device is provided to reduce the waste of materials by reconstructing a high-frequency electric resistance welding of an actual steel pipe with only small portion of the material corresponding to a welding part of a metal sheet in producing the steel pipe with the high-frequency electric resistance welding after bending the metal sheet. CONSTITUTION: A high-frequency electric resistance test welding device is composed of an uncoiler for uncoiling test pieces(1) supplied in a coil type at both sides and supplying the test pieces to a welding part; a leveler installed to contact rollers to each other and level the test pieces supplied by the uncoiler; squeeze rolls(30) for positioning test pieces in the squeeze rolls, respectively, and applying pressure after contacting two test pieces to be welded; a tilting roll(40) closely contacted and installed to upper and lower sides of the two test pieces welded to each other to regulate a contact angle of the test piece to the radial curvature of the actual steel pipe and to fix the test pieces to the welding part; a monitor camera for photographing and informing the welding part of an operator; and a cutter for cutting the welded test piece at the constant length.
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