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1995年5月日本川崎钢铁公司于叶厂3号热连轧机投入运行，在世界上首先实施热轧精轧机无头轧制技术。无头轧制技术的关键是接合技术。千叶厂从199o年起着手接合技术的研究开发工作，最后开发出用感应加热法在极短时间（约SS）内接合板坯的接合装置，接合装置由板坯卷取机、端头
May 1995 Japan’s Kawasaki Iron and Steel Company in Yechang No. 3 hot rolling mill put into operation in the world first to implement the hot rolling mill endless rolling technology. The key to endless rolling technology is joining technology. Chiba Plant started research and development of hand bonding technology from 199o, and finally developed a bonding device for joining slabs by induction heating in a very short time (about SS). The bonding device consisted of a slab coiler, a tip