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根据莱钢热轧H型铜出现的起皮、结疤、凹坑、麻点等表面缺陷,通过产品实物成分、金相、夹杂物等的分析手段,对影响H型钢表面质量的问题进行了深入探讨,并且对轧制用的铸坯质量也进行了相关分析与研究。在此基础上,系统分析了从冶炼到轧制过程中的工艺参数的适合性。基于生产实践工艺条件并结合研究分析结果,制定了工艺改进措施,有效的减少了表面缺陷的产生,促进了H型钢实物质量的提升。
According to the hot-rolled H-type copper in Laiwu Steel, there are surface defects such as peeling, scarring, pitting and pitting. The problems affecting the surface quality of H-section steel have been analyzed through the analysis of physical components, metallurgical phases and inclusions In-depth discussion, and the quality of the rolling billet also conducted a correlation analysis and research. On this basis, the suitability of process parameters from smelting to rolling process was systematically analyzed. Based on the production practice of the process conditions and the results of research and analysis, the development of process improvement measures to effectively reduce the surface defects, and promote the H-beam steel to enhance the physical quality.