| 摘要 |
PROBLEM TO BE SOLVED: To provide continuous hot dipping equipment or continuous annealing/continuous hot dipping equipment and the temper rolling method of a steel strip by which operation shift between the high reduction operation of a steady rolling in temper rolling and a light reduction operation when a welded part is passed through is smoothly performed, scratching to a temper rolling roll and the break of the strip in the vicinity of the welded part are prevented and the continuous operation is performed smoothly and stably, when the steel strip 1 of a high-tension material having the welded part is subjected to continuous annealing/continuous hot dipping. SOLUTION: After the steel strip 1 of a high-tension material is continuously annealed in a continuous annealing furnace via an inlet-side looper 5 and, after the strip is made into a plated steel strip 1a by being treated by hot dip galvanizing with hot dip galvanizing equipment 7, temper rolling is applied at the rolling load of max. 15,000 kN with the temper rolling mill 9 via a mill looper 8. After the strip is inspected in an inspection room 11 via an outside looper 10, the strip is made into a product by being wound with a tension reel. COPYRIGHT: (C)2007,JPO&INPIT
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