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Perfecting the Secondary Cooling System and Improving the Quality of CC Billet
Pages: 18-21,31
Year: Issue:  6
Journal: Bao-Steel Technology

Abstract: 分析了新疆八一钢铁有限公司第一炼钢厂1#连铸机二冷存在问题对120 mm×120mm断面连铸坯质量的影响,通过缩短外弧、侧弧喷淋管支管长度,使连铸坯在二次冷却时趋于均匀;降低HPB235钢二冷冷却强度,优化了二冷配水制度,取得了较好的效果:脱方废品率由0.034%逐渐降低到0.003%;中间裂纹率由10%降到8%,平均裂纹级别由原来2.0级降至1.5级;轧钢质量异议由5起降低到1起.
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