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(一)球墨铸钢轧辊:上海冶金机修总厂自79年以来试生产球墨铸钢轧辊,φ450毫米轧辊供上钢八厂轧制60—90毫米方坯,寿命比70Mn 轧辊提高3—4倍;φ540毫米轧辊供上钢二厂轧硅钢板坯,寿命比70Mn 轧辊提高2—3倍。尚有一批轧辊正在上钢一厂和十厂试用。(二)电渣耐磨冷轧辊:由上钢五厂,八五钢厂,钢研所,上钢十厂和第三冷轧带钢厂联合试验的9Cr_2Mo 电渣重熔轧辊,使用寿命比同牌号的电炉铸钢轧辊提高3—4倍,1980年12
(A) ductile steel roll: Shanghai Metallurgical Machinery Plant trial production of 79 since nodular cast steel rolls, φ450 mm roll for rolling eight steel plant 60-90 mm billet life expectancy 3-4 times higher than the 70Mn roll ; φ540 mm roll for the steel plant rolling silicon steel slab, life expectancy than the 70Mn roll 2-3 times. There are still a number of rolls on the steel plant and ten factory trial. (2) Electroslag wear-resistant cold roll: 9Cr_2Mo electroslag remelting roll jointly tested by Shanghai Iron and Steel Co., Ltd., No. 85 Steel Works, Steel Research Institute, Shanghai Steel No. 10 Steel Mill and No. 3 Cold Rolling Steel Strip, with a service life ratio The same brand of electric furnace cast steel roll 3-4 times, 1980 12