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镇静钢澆注情况及钢锭质量——缩孔的形成——防止缩孔各方法的分析及选择——试验方案进行情况——试验结果及结论。 一、前言 镇静钢锭由于在冷却凝固过程中体积的收缩,在上部形成一个不含金属的空间,这就是缩孔。缩孔的大小、位置影响了钢锭的质最和初轧钢坯的收得率,所以研究镇静钢缩孔问题以提高钢锭的质量和减少切头率,就有着现实的意义。
Casting of Cast Steel and Quality of Steel Ingot - Formation of Shrinkage Cavities - Analysis and Selection of Methods for Prevention of Shrinkage - Case Study - Test Results and Conclusions. First, the preface Calm ingot due to the shrinkage of the volume in the cooling and solidification process, the upper part of the formation of a metal-free space, which is shrinkage. The size and position of the shrinkage cavity affect the quality of the ingot and the yield of the initial bloom billet. Therefore, it is of practical significance to study the problem of shrinkage of the calmed steel in order to improve the quality of the ingot and reduce the incision rate.