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1963年以前我厂500和600轧机开坯铸钢轧辊系采用ZG70Mn、ZG70Mn_2等材质。由于生产的发展,合金钢比例不断增长,上述材质的机械性能满足不了生产的需要,故需寻求抗拉强度高、耐磨性好的材质来解决轧钢生产的急需。通过试制、生产与使用,选用了ZG40CrMnMoVA材质。而500及600轧机铸钢轧辊需开槽孔深60~110毫米,用平铸辊不仅钢水消耗高,而且
Before 1963 I plant 500 and 600 rolling mill billet cast steel using ZG70Mn, ZG70Mn_2 and other materials. Due to the development of production, the proportion of alloy steel continues to grow, the mechanical properties of the above materials can not meet the needs of production, it is necessary to seek high tensile strength, good wear resistance of the material to solve the urgent need for steel production. Through trial production, production and use, use the ZG40CrMnMoVA material. The 500 and 600 rolling mill steel roll to be slotted deep 60 ~ 110 mm, with a flat roller not only high consumption of molten steel, and