熔模精密铸造,国内外一般都是采用电炉熔化钢水进行生产,我厂经过反复试验,终于成功地使用石墨坩埚在柴油反射炉内熔炼球墨铸铁,代替电炉化钢,来进行熔模精密铸造。两年多来已小批投入生产,代用了油泵上的10种钢制零件,初步取得效果。利用柴油炉熔炼球墨铸铁,设备简易,能够迅速上马;以铁代钢,为国家节省大量优质钢材;少占用金属切削机床及热加工设备,节省大量工时,还减少 Investment Casting, both at home and abroad are generally used in electric furnace molten steel production, our plant after repeated tests, and finally successfully using the graphite crucible in the diesel reflex furnace smelting ductile iron, instead of electric furnace steel, to investment precision casting. More than two years have been put into production in small batches, substituting 10 kinds of steel pump parts, the initial results. The use of diesel smelting ductile iron, the equipment is simple, can be quickly launched; to iron on behalf of the steel, save a lot of quality steel for the country; less occupation of metal cutting machine tools and thermal processing equipment, saving a lot of working hours, but also reduce