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我厂生产的球墨铸铁和可锻铸铁汽车零件,采用10吨无芯工频感应电炉熔化铁水。炉衬用石英砂构筑。自1971年投产以来,炉衬寿命很低(平均寿命仅30炉左右),无法满足生产要求。从1975年底开始,我们从原料、炉衬打结、烘炉烧结、使用维修等方面着手,努力提高炉衬寿命。众所周知,构筑无芯工频感电炉内衬用的石英砂的品质,对炉衬的使用寿命有十分要重的影响。因此,要求石英砂必须十分纯净,以保证具有较高的耐火度。我厂10吨炉内衬,曾经
I produced ductile iron and malleable iron car parts, using 10 tons of core frequency induction furnace melting molten iron. Furnace lining with quartz sand construction. Since its commissioning in 1971, the lining has a low life expectancy (average life expectancy of only about 30 furnaces) and can not meet the production requirements. From the end of 1975, we started from raw materials, lining knot, oven sintering, maintenance and other aspects of work, and strive to improve the lining life. As we all know, to build coreless frequency induction furnace lining with quartz sand quality, the lining of the service life is very important impact. Therefore, the requirements of quartz sand must be very pure, in order to ensure a high degree of refractoriness. I plant 10 tons furnace lining, once