论文部分内容阅读
本文是在“ZF法”试验取得成功的基础上,进一步进行的液芯加热和液芯轧制试验研究。文中对比了几种保持钢锭液芯率的方法,指出了“ZF法”的有利条件及其钢锭温度特征。通过现场实际测温及大生产统计数据,得出了“ZF法”锭的实际节能效果。文中还介绍了在实验室用双金属模拟钢锭液芯轧制的结果,得出在现场条件下可轧液芯率≤8％。通过钢锭倾倒法,钢锭直接测温法和冷态模拟法的综合结果,得出ZF6.67吨沸腾钢锭的模内全凝时间为130分钟左右。并根据现厂实际条件制订了该锭型的新加热制度,从而使钢锭平均装炉温度达到了1006℃,液芯加热率达到88.2％,均热炉生产能力提高42.8％,烧损降低0.7％、燃料消耗降低46％。
This paper is based on the success of the “ZF method” test, the further study of liquid core heating and liquid core rolling test. In this paper, several methods to maintain the ingot liquid core rate are compared, and the favorable conditions of “ZF method” and its ingot temperature characteristics are pointed out. Through actual field temperature measurement and large-scale production statistics, the actual energy saving effect of “ZF method” ingot was obtained. The article also introduces the results of billet simulating the ingot liquid core rolling in the laboratory, and concludes that under the condition of the field, the hydraulic conductivity is less than 8%. Through the steel ingot dumping method, the direct measurement of ingot temperature and the cold simulation method, the result shows that the total internal solidification time of ZF6.67 ton ingot ingot is about 130 minutes. According to the actual conditions of the plant, a new heating system was developed for the ingot. The average ingot loading temperature reached 1006 ° C, the liquid core heating rate reached 88.2%, the soaking furnace production capacity increased by 42.8% and the burning loss decreased by 0.7% , 46% lower fuel consumption.