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我厂热处理车间中温箱型电炉的炉底纲板,是用镍铬耐热钢,在使用过程中经常发生断裂变形现象,需要翻换新的炉底钢板。但这种钢板市场很难买到,为了解决这问题,我厂试制一种高硅球墨铸铁,用这种材料做炉底钢板不但达到技术要求,而且质量超过镍铬耐热钢。如快速冷却时,镍铬钢将产生小块氧化层,使用2～3个月就有裂纹或变形,而高硅球墨
I plant heat treatment plant in the oven-type furnace floor plank, is the use of nickel-chromium heat-resistant steel, often in the course of the phenomenon of fracture deformation, the need to replace the new bottom plate. However, this plate market is difficult to buy, in order to solve this problem, I plant trial production of a high silicon ductile iron, with this material to do the bottom of the steel plate not only meet the technical requirements, but also the quality of nickel-chromium heat-resistant steel. Such as rapid cooling, nickel-chromium steel will have a small oxide layer, using 2 to 3 months there are cracks or deformation, and high-silica ink