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一、前言加强钢锭头部的保温效果,是提高钢锭质量和钢锭成坯率的重要手段。几年来,我厂进行了多种保温材料的试验研究工作,试验结果表明,山东北墅生建石墨矿生产的牌号80—50—100膨胀防缩孔剂是较好的一种。两年来,经过典型试验,小型试验和大生产推广试验,都取得了良好的效果,平均可提高成坯率0.5％以上。此法操作简单、方便,深受工人欢迎,既提高了钢材性能,又改善了钢的质量。二、试验的目的随着对成坯率要求的不断提高,要求进
I. INTRODUCTION Reinforcing the insulation effect of the ingot head is an important means to improve the ingot quality and ingot ingot ingot rate. Over the past few years, our factory conducted a variety of thermal insulation materials research work, the test results show that the Shandong Beishu graphite building production of grade 80-50-100 anti-cratering agent is a better kind. In the past two years, good results have been obtained through typical tests, small-scale experiments and large-scale production promotion experiments, which can increase the average billet yield by more than 0.5% on average. This method is simple, convenient, welcomed by workers, not only improve the performance of steel, but also improve the quality of steel. Second, the purpose of the test With the continuous improvement of the requirements of the billet, the requirements into