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用于熔炼钢材的无芯工频感应炉在大修和中修炉衬时,一般都利用钢板焊制的胎模捣筑炉衬,并把胎模留在炉内烘烤烧结炉衬,在熔炼第一炉炉料时,胎模作为炉料的一部分一起熔化。据我厂两台500公斤无芯工频感应炉的使用情况统计,每年需用胎模120只,除消耗四吨4毫米厚的钢板外,还需花费大量的人工和焊条。经分析研究,改用由厚壁铸钢筒和开炉块(起熔体)组成的组合式胎模捣筑炉衬,铸钢筒可重复使用,取得了节约材料和人工的效果。一、组合胎模的结构胎模由两节组成。上半节为一个铸钢筒,筒的壁厚为20毫米,长约为胎模全长的三分之二。为了增强铸钢筒的刚度,防止变
Coreless frequency induction furnace for smelting steel in the overhaul and repair of lining, the general use of steel welded tire mold ramming lining, and the tire mold to stay in the furnace baking sintering lining, in the first furnace smelting When charging, the mold melts together as part of the charge. According to the statistics of two 500 kilos coreless frequency induction furnaces in our factory, we need 120 molds every year. In addition to consuming 4 tons of 4mm thick steel plates, we also need to spend a lot of labor and welding rods. The analysis and research, the switch to the thick-walled cast steel cylinder and the furnace block (from the melt) consisting of a combination of tire mold ramming lining, cast steel cylinder can be reused, and achieved material savings and artificial results. First, the structure of the combined mold The mold consists of two sections. The upper half is a cast steel cylinder with a wall thickness of 20 mm, about two-thirds the overall length of the tire. In order to enhance the stiffness of the cast steel cylinder, to prevent change