| 摘要 |
PROBLEM TO BE SOLVED: To perform, with high accuracy, the butt welding of a preceding and a succeeding belt-like metallic sheet regardless of the width or the like of the belt-like metallic sheet (sheet). SOLUTION: The butt joining equipment is provided with: a preceding-end working table 3 for supporting the rear end of the preceding sheet W1; a succeeding-end working table 4 for supporting the front end of the succeeding sheet W2 as well as adjustably moving both sheets W1, W2 in the traveling and width directions; a clamp mechanism 5 for clamping near the abutting ends of both sheets W1, W2; a center plate 6 for positioning the rear end of the preceding sheet W1 and the front end of the succeeding sheet W2; and a TIG welding set 7 for welding the abutting part of both sheets W1, W2. On both working tables 3, 4, there is arranged an electromagnet 2 that attracts and holds the rear end of the preceding sheet W1 and the front end of the succeeding sheet W2. In addition, in the TIG welding set 7, the tip end of the welding electrode 27 is formed into a sharp conical shape, and also the arc length is set so that no arc blow is generated in the butt welding. COPYRIGHT: (C)2006,JPO&NCIPI |
