辊底式热处理炉辊面结瘤原因分析与应对措施

分析研究了江苏沙钢集团有限公司的辊底式热处理炉辊面结瘤产生的原因,提出了改进措施。辊底式热处理炉辊面结瘤是由于钢板表面的热轧氧化铁皮、钢板边部火焰切割后的留渣在高温下粘附在辊面上经碾压、累积、叠加而造成。通过更换炉辊、加强原料钢板检验、改善抛丸、控制炉内气氛、合理编排作业计划以及实施合理的通炉制度,使辊面结瘤问题得到有效控制。

Cause analysis and countermeasure of roller surface nodular in roller hearth furnace

The causes of furnace sow of Shagang roller hearth furnace were analyzed.That is because the tamping,accumulating and stacking of the hot rolled scale on the surface of steel plate and the slag on the edge of the steel plate after flame cutting on the surface of the roller under high temperature.Some countermeasures were put forward,such as replacing the furnace roller,checking the heavy plate carefully before heat treatment,improving shot blasting technology and charging schedule,controlling the furnace atmosphere and using the method of scrubbing the roller surface nodular,ect.