发明名称 |
ELECTRIC RESISTANCE WELDING OPERATION MANAGEMENT DEVICE, ELECTRIC RESISTANCE WELDING OPERATION MANAGEMENT METHOD, AND COMPUTER PROGRAM |
摘要 |
An electric resistance welding operation management device 100 manages a welding operation during manufacture of electric resistance welded steel pipe, in which heat is input to a steel plate 1, that is being conveyed along a specific conveyance direction and formed into a circular tube shape while pressing side faces of the metal plate 1 with a pair of squeeze rolls 2a, 2b, to weld together two circumferential direction edge portions 11a, 11b of the metal plate 1 converging in a V-shape. The electric resistance welding operation management device 100 includes an image input means that inputs plural images, successively captured over 3 sec and each including a Vee convergence region of the steel plate 1. The electric resistance welding operation management device 100 includes a welding point position derivation means that, based on each of the plural images input by the image input means, derives the position of a welding point, based on acquired data that takes as the position of a welding point the position, out of positions at each point in time within the specific duration, of a slit end at the furthest conveyance direction downstream point of a weld slit S, having the Vee convergence point as a base point and extending further than the Vee convergence point toward the steel plate 1 conveyance direction downstream side, at the point in time when the slit end is positioned furthest downstream in the conveyance direction. |
申请公布号 |
CA2870427(C) |
申请公布日期 |
2016.09.06 |
申请号 |
CA20132870427 |
申请日期 |
2013.04.05 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
HASEGAWA, NOBORU;FUKAMI, TOSHISUKE;MIZUHASHI, NOBUO;HAMATANI, HIDEKI;KARUBE, YOSHIFUMI;MIURA, TAKAO;TANAKA, KIMIHARU;YAMAMOTO, KAZUTO |
分类号 |
B23K13/00;B21B37/74;B21B37/78;B21C37/08;B23K13/02;B23K13/08 |
主分类号 |
B23K13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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