一、前言我厂一台3吨/小时酸性冷风冲天炉,所熔化的铸铁多达四、五个牌号(除普通灰铁外,还同时生产耐热灰铁、耐热球耐磨铸铁及高强度高韧性球铁)。铸件形状复杂、壁厚在8～300毫米、轮廓尺寸在50～3,500毫米、铸件单重为0.4～6.000公 First, the foreword I plant a 3 ton / hour acid cold cupola furnace, melted cast iron up to four or five grades (in addition to ordinary gray iron, but also the production of heat-resistant gray iron, heat-resistant ball wear-resistant cast iron and high High strength ductile ductile iron). Castings complex shape, the wall thickness of 8 to 300 mm, the outline size of 50 ~ 3,500 mm, the casting weight of 0.4 to 6.000 km