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1981年11月26～28日,冶金部在包钢召开了包钢重轨整体加热全长常化淬火新工艺的技术鉴定会.来自铁道部、冶金部和有关大专院校的70多位钢轨和热处理专家,共同研究了包钢的试验总结报告,审核了工艺参数和性能,研究了十多年来4批工业试验的2500多吨淬火轨在国内若干主干线试铺的总结报告.在现场观看了实际操作,对各工艺参数进行了实测,当场取样作各项要求性能的分析检
From November 26 to November 28, 1981, the Metallurgical Department held a technical appraisal meeting on the new technology of full-scale normalization of the heavy rail at Baotou Steel Co., Ltd. From the Ministry of Railways, the Ministry of Metallurgy and the relevant institutions, more than 70 rails And heat treatment experts to study the trial report of Baotou Steel, reviewed the process parameters and performance, and studied the summary report on the test of some 2,500 tons quench rails in 4 batches of industrial tests over the past 10 years in China. Watched the actual operation of the process parameters were measured, spot sampling for the performance of the required analysis