国内第一台45毫米四辊液压数显卷板机,已由北京重型机器厂研制成功,并在重庆水轮机厂投产。该机可对宽3米、厚45毫米的钢板进行冷卷,也能对宽3米、厚80毫米的50℃钢板进行热卷,实现了卷板、卷圆、压头子的自动化,具有国际80年代的水平,是我国卷板机的第三代产品。 The first 45mm four-roll hydraulic digital winder in China has been successfully developed by the Beijing Heavy Machinery Factory and put into operation at the Chongqing Water Turbine Factory. The machine can cold-roll 3 meters wide and 45 millimeter thick steel plates, and can also perform hot coiling on 50 degrees wide steel plates 3 meters wide and 80 millimeter thick, which realizes the automation of coiling, rolling, and pressing heads. The level of the 1980s is the third generation of the Chinese coiler.