近十多年来,晶闸管供电装置在国内得到了迅速的发展和普及,但它的运行可靠性仍需要进—步提高。湘钢250线材连轧机由荒轧、一中间、二中间和精轧机组等19个机架组成。它是目前国内轧制速度最快,产量最高的线材连轧机。这套轧机包括23套 In the past ten years, the thyristor power supply device has been rapidly developed and popularized in China, but its operational reliability still needs further improvement. Xiangtan Iron and Steel 250 continuous rolling mill by the barren rolling, a middle, two middle and finishing mill and other 19 rack components. It is currently the fastest rolling, the highest output of the wire rod rolling mill. The rolling mill includes 23 sets