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我厂大修二车间王明高等老师傅接受了修复大型四辊压延机两根大轴的任务。他们认真研究,克服了种种困难,终于将两根大轴修好。这两根大轴是在压延机的安装调整过程中发生断裂和弯曲的。轴长4.5米,直径700毫米,重8吨,材料为铸铁,要求在全长上不同心度不大于土0.01毫米,表面光洁度为(?)9,承受表面压力300多吨。大轴中心具有通循环蒸汽的孔,蒸汽温度120℃,压力为8公
I plant overhaul two workshops Wang Minggao master accepted the task of repairing two large axis of large four-roll calender. They carefully studied and overcame all kinds of difficulties and finally repaired the two large shafts. The two axes are broken and bent during the installation and adjustment of the calender. The shaft length is 4.5m, the diameter is 700mm and the weight is 8t. The material is cast iron. The requirement is that the concentricity is not greater than 0.01mm on the whole length, the surface finish is (?) 9, and the surface pressure is over 300 tons. The center of the large shaft has holes for circulating steam at a temperature of 120 ° C and a pressure of 8 kgs