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纯铜铸造喷头是氧气顶吹转炉氧枪上的重要部件,它对转炉炼钢的钢产量、钢质量和生产成本有着重要的影响。采用中心水冷纯铜铸造喷头是一项先进技术。对于外径φ133mm单三式喷头,在国内是首次采用这种技术,在国际上亦未见报导。 从1982年7月至1983年5月,在首钢炼钢厂30吨转炉上使用了11个铸造喷头,共冶炼了钢水一万多炉,达34万多吨。铸造喷头最高使用寿命达1471炉,最低的由于焊缝漏
Pure copper casting nozzle is an important part of the oxygen top blown oxygen lance, which has an important impact on the steel production, steel quality and production costs of converter steelmaking. The use of central water-cooled copper casting nozzle is an advanced technology. For outside diameter φ133mm single three-nozzle, the first time in China is the use of this technology, has not been reported in the world. From July 1982 to May 1983, 11 casting nozzles were used on a 30-ton converter at Shougang Steel Works, where more than 10,000 furnaces were melted, reaching more than 340,000 tons. Casting nozzle maximum service life of up to 1471 furnaces, the lowest due to weld leakage