钢坯高温抗氧化涂料应用效果试验研究  

Experimental study on application effect of high temperature anti-oxidation coating on slab

作　　者：刘勇 魏连启[2] 郭宏 刘富贵 郭韬 邓超 LIU Yong;WEI Lianqi;GUO Hong;LIU Fugui;GUO Tao;DENG Chao(Panzhihua Steel and Vanadium Co.,Ltd.,Pangang Group,Panzhihua 617062,China;State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]攀钢集团攀枝花钢钒有限公司热轧板厂,四川攀枝花637400 [2]中国科学院过程工程研究所多相复杂系统国家重点实验室,北京100190

出　　处：《轧钢》2021年第1期36-40,共5页Steel Rolling

摘　　要：由于钢坯在加热过程中温度高、时间长,其表面氧化烧损严重,不仅降低了热连轧过程金属收得率,而且影响轧制过程中高压水的除鳞效果,产生带钢表面质量缺陷,为此出现了高温抗氧化涂料的研究和应用。在某常规热连轧生产线针对低碳钢、微合金钢、耐侯钢,试验研究了一种钢坯高温抗氧化涂料的高温防氧化效果及使用性能。结果表明,试验应用的高温抗氧化涂料具有较好的高温防护效果,实现了加热过程板坯表面氧化铁皮厚度的有效减薄,其中,低碳钢平均减薄46.25%,微合金钢平均减薄24.38%,耐候钢平均减薄18.90%,且涂料与钢坯基体剥离效果良好,对轧后带钢的表面质量无影响。Due to the high temperature and long time of slab heating,the surface oxidation and burning loss of slab are serious,which not only reduces the metal yield in the hot continuous rolling process,but also affects the descaling effect of high pressure water in the rolling process.Even it results in surface quality defects of the strip.In a conventional hot rolling production line,the high temperature anti-oxidation effect and performance of a high temperature anti-oxidation coating for low carbon steel,micro-alloyed steel and weathering steel were studied.The results show that the high temperature anti-oxidation coating has good high temperature protection effect and can effectively reduce the thickness of iron oxide scale on the slab surface during heating.The average thickness of low carbon steel is decreased by 46.25%,that of micro-alloyed steel is decreased by 24.38%,and that of weathering steel is decreased by 18.90%.Moreover,the peeling effect of the coating and the slab substrate is better,and the surface quality of the rolled strip is not affected.

关 键 词：板坯 加热 高温抗氧化涂料 氧化铁皮 除鳞 表面质量 

分 类 号：TG335[金属学及工艺—金属压力加工]