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上海重型机器厂在自制的大型电渣重熔炉上成功地重熔了一支直径2800mm,重127t的大钢锭.钢锭表面光洁,经初步检验令人满意,钢锭直径超过了西德R?chling-Burboch钢厂的直径φ2300mm的重熔钢锭耗电、电效率也都比较好.上海重型机器厂的电渣重熔是将电炉冶炼出来的钢水浇成长3m多、直径500mm,具有一定形状的电极,然后将电流通过三组电极接触电渣.电渣重熔后的钢锭化学成份均匀,偏析、非金属夹杂物少,钢水更纯洁,内在质量更好.目前,不少用于尖端科学技术的高级合金钢和特殊要求的锻件都将采用电渣重熔.上海重型机器厂这次用电渣重熔试生产大钢锭是为了掌握大型电渣炉的抽锭工艺和了解电渣重熔大锻件的性能.经过了细致的准备工作,对重熔和
Shanghai Heavy Machinery Factory succeeded in remelting a large ingot of 2800mm in diameter and 127t in weight on a large self-made electroslag remelting furnace.The surface of the ingot was smooth and satisfactory. The ingot diameter surpassed that of the West Germany Röchling- Burboch steel mill diameter φ2300mm remelting ingot power consumption, electrical efficiency is also better.Shanghai Heavy Machinery Plant ESR is the steel smelting furnace out of the growth of more than 3m, diameter 500mm, with a certain shape of the electrode, And then the current through the three groups of electrodes in contact with the electroslag. Electroslag remelting ingot chemical composition uniform, segregation, less non-metallic inclusions, steel more pure, internal quality better. At present, many advanced science and technology for advanced Alloy steel and special requirements of forgings will use ESR.Shanghai Heavy Machinery Factory This trial of electroslag remelting to produce large ingot is to grasp the large electroslag furnace ingot extraction process and understand the ESR forgings Performance. After careful preparation, remelting and