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天津钢管公司从德国引进的150吨VD炉,自1992年投产以来,真空性能一直达不到设计指标,极大地影响了该公司的产品质量及效益。虽也经过几次攻关但均末成功。2000年4月该公司与西安重型机械研究所合作,通过测试诊断、优化设计、更换喷嘴及第四级泵体后,一次试车成功。完全达到甚至超过外方原设计指标,得到用户的高度评价。经过两年多的生产运行证明,此次改造是非常成功的,并为国内现有引进的钢液精炼真空设备今后的改造提供了依据。
Tianjin Steel Pipe Company imported from Germany 150 tons VD furnace, put into operation since 1992, the vacuum performance has not reached the design specifications, which greatly affected the company’s product quality and efficiency. Although after several research but no success at all. April 2000 The company and the Xi’an Institute of Heavy Machinery, through the test diagnosis, design optimization, the replacement of the nozzle and the fourth-stage pump, a successful test. Fully meet or even exceed the original design of foreign indicators, highly praised by users. After more than two years of production and operation proved that the transformation is very successful, and for the existing domestic introduction of molten steel refining vacuum equipment to provide the basis for future transformation.