前言为了适应我国钢铁工业的迅速发展,满足炼钢等部门对铁合金的需要,遵照毛主席关于“大中小相结合两条腿走路”的方针,我们于1970年根据冶金部下达的任务,编制了2×1800千伏安电炉车间通用设计,制造了140台电炉变压器分交各地进行建设。几年来陆续建成投产了约120台的1800千伏安铁合金电炉,基本上扭转了地方硅铁等产品的供应不足的状况。一九七五年我们到广州、余姚等厂对1800千伏安电炉建设生产情况进行了一些调 Preface In order to meet the rapid development of China’s steel industry and meet the needs of steelmaking and other departments of ferroalloy, in accordance with Chairman Mao’s principle of “walking with two legs in accordance with the principle of small medium and large”, in 1970, according to the mandate issued by the Ministry of Metallurgical, prepared 2 × 1800 KVA furnace shop universal design, manufacturing 140 sets of furnace transformer sub-delivery throughout the construction. Over the past few years have put into operation about 120 sets of 1800 kVA ferroalloy furnace, basically reversed the supply of ferrosilicon and other products in short supply. In 1975, we went to Guangzhou, Yuyao and other factories on the 1800 KVA electric furnace construction and production of a number of adjustments