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太原钢铁公司原有一座由瑞典引进的年产７万吨特殊钢的５０ｔ大电炉，炉盖的旋转采用风动马达驱动，开式大齿轮传动。经过２０多年的生产运转，该大齿轮产生了严重的点蚀、磨损及变形，在生产运行中时常出现转不动现象，所以吊料罐常撞击摆桥，对框架设备和安全生产造成威...
Taiyuan Iron and Steel Company originally imported from Sweden with an annual output of 70,000 tons of special steel 50t large electric furnace, lid rotation using wind-driven motor, open gear transmission. After more than 20 years of production and operation, the gear has a serious pitting corrosion, wear and deformation, often appear in the production operation can not move, so hang the tank often hit the bridge, the framework of the equipment and safety of Wei. ..