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一、实际生产中的新课题国内热窄带生产,除少数几家半连续式轧机用大方坯轧成热窄带外,其他大多数厂的热窄带车间均用大方坯在φ650mm、φ500mm轧机上先轧成厚度为16～20mm,宽度稍大于成品带宽的扁坯,再在热带车间轧成热带。二火成材造成金属消耗大、耗能多、成本高,而且每一种宽度规格的成品都需要相应规格的扁坯。坯料生产车间需为此准备众多的生产工具,并大大增加更换品种的时间,经济效益很差。
First, the actual production of a new topic Domestic heat narrowband production, with the exception of a few semi-continuous rolling mill bloom with hot narrow strip, most of the other factory hot narrow strip shop with a bloom in φ650mm, φ500mm first rolling mill Into a thickness of 16 ~ 20mm, width slightly larger than the finished product of the slab, and then rolled into tropical tropical workshop. Second fire into the metal caused by expensive, energy-consuming, high cost, and each width specifications of the finished product requires the corresponding specifications of the slab. Billet production workshop to prepare for this large number of production tools, and greatly increase the replacement of species of time, poor economic efficiency.