一、前言 我国现有线材轧机80余套,生产能力每年可达600多万吨,实际生产约450万吨,每年还要大量进口线材。而这些轧机大都是陈旧设备,工艺落后,消耗大,产品质量差,经济效益低,相当于发达国家的四、五十年代水平。在这80余套线材轧机中,全连续的仅一套,轧速也只有28m/s,坯料断面60× I. Introduction China’s existing wire rod mill more than 80 sets, the production capacity of up to 600 million tons per year, the actual production of about 4.5 million tons, but also a large number of imports a year wire. Most of these rolling mills are outmoded equipment with backward technology, high consumption, poor product quality and low economic benefits, equivalent to those of the developed countries in the 1950s and 1950s. In this more than 80 sets of wire rod mill, the whole continuous only a set of rolling speed is only 28m / s, the blank section 60 ×