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热带精轧机工作辊的磨损和表面粗糙是影响产品质量的主要原因，特别应保证精轧后段的板形和钢板断面稳定。而用在线轧辊磨具修磨轧辊是有效的手段。日本钢管公司京滨厂已于１９８９年在热带精轧Ｆ４轧机上设置了在线轧辊磨具，对改善该轧机工作辊表面粗糙度发挥了很大作用。１
The wear and surface roughness of the work rolls of the hot strip mill are the main factors that affect the product quality. In particular, the plate shape and the section of the steel plate in the finishing section of the finishing mill should be ensured to be stable. The use of online roller grinding wheel grinding is an effective means. The Japanese steel pipe company Keihin Plant has set up an online roll grinding machine on a hot strip mill F4 in 1989 to play a big role in improving the surface roughness of the work roll of the mill. 1