钢轨钢对钢水洁净度和非金属夹杂物控制均有较高要求。针对高硫铁水冶炼现状，为实现钢轨钢的洁净生产，攀钢在铁水预处理、转炉冶炼、钢水精炼方面进行了硫控制技术的开发与应用，形成了提高钢的洁净度和控制钢中非金属夹杂物的数量和形态的洁净钢生产工艺技术，实现了350km/h高速铁路用钢轨的生产。高速轨成品w(［S］)≤0.008%的合格率达到95%以上，钢轨w(T［O］)降至0.001 5%以下，夹杂物的分布形态得到有效控制。
Abstract
There are more advanced requests on steel cleanness and shape control of non-metallic inclusions for producing rail steel．According to the smelting situations of hot metal with high sulphur content at Panzhihua Steel，technologies for controlling the sulfur content during hot metal pretreatment，converter smelting，and second refining are developed．Technologies in clean steelmaking such as increasing the cleanness of steel，quantity and shape control of non-metallic inclusions are formed．Rail steel at a speed of 350km/h has been produced．As for the high speed rail steel，over 95% of the steel has the w(［S］)≤0.008%，the content of w(T［O］) deceases to below 0.001 5%，and the distribution and shape of inclusions are controlled effectively．
关键词
洁净钢 /
硫控制 /
钢轨钢
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参考文献
参考文献
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