增加单机架冷轧机的道次压下量,以此加大入口坯料的厚度,减少轧制道次,从而降低生产成本,是近年来冷轧机研究的中心课题。一般轧机由于受工作辊辊径的限制,最大道次压下量仅为45～55％。为此,新日本钢铁公司、石川岛播磨重工业公司和东芝公司开发了一台新型多道次紧凑轧机—NCM(New Compact Multi-reduction Mill)。 In order to increase the thickness of the inlet blank and increase the thickness of inlet blank and reduce the production cost, it is the central task of cold rolling mill to increase the pass reduction of single-stand cold rolling mill. General mill due to the work roll diameter restrictions, the maximum number of pass reduction of only 45 ~ 55%. To this end, Nippon Steel Corporation, Ishikawa Island Broadcasting Co., Ltd. and Toshiba Corporation have developed a new multi-pass compact rolling mill, the New Compact Multi-Reduction Mill.