Abstract：The cause of the quality defect problems of heat treatment steel plate such as blasting pellet indentation, bottom roll indentation and edge extrusion deformation was analyzed. And then the shot blasting machine was transformed by increasing scraper, purging device on the upper surface and reforming the bottom blasting rolls. A special steel plate was used for cleaning the furnace and cleaning up the oxidation sheet which was attached to the roller surface of the furnace. And by optimizing the furnace system and the process parameters and formulating the shift control measure of the furnace, the surface quality of the steel plate was effectively controlled and improved obviously after the heat treatment and the control ability of product quality was improved.
马国金，王雪松，王飞. 中厚板热处理表面质量缺陷分析与控制[J]. 中国冶金, 2018, 28(8): 60-62.
MA Guojin,WANG Xuesong,WANG Fei. Analysis and control of surface quality defects in heat treatment of heavy plate[J]. China Metallurgy, 2018, 28(8): 60-62.
2018, Vol. 28 
