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通过中厚钢板热轧工艺润滑实验,分析了不同工艺润滑条件下中厚钢板热轧过程中轧制载荷与压下率的关系,研究了工艺润滑对钢板表面质量的影响,并结合实验钢的连续冷却转变曲线,探讨了工艺润滑条件对钢板组织转变的影响.结果表明:中高质量浓度比低质量浓度热轧油能更有效地降低轧制力;粗轧阶段比精轧阶段降低轧制力效果更明显.工艺润滑可改善中厚热轧板的表面质量,降低板面粗糙度,并促进钢板表面处在轧制过程中的铁素体转变,减少表面附近的带状组织,使轧后表面处组织均匀细小,减小表面缺陷产生的概率.
The relationship between the rolling load and the rolling reduction rate during the hot rolling process of medium thick steel plate under different process lubrication conditions was analyzed through the experiments of the hot rolling process of the medium thick steel plate. The effects of the process lubrication on the surface quality of the steel plate were studied. Combined with the experimental steel The results show that the rolling force can be reduced more effectively than the low mass concentration hot-rolling oil, and the rolling force can be reduced more in the rough rolling stage than in the finish rolling stage The effect is more obvious.Technical lubrication can improve the surface quality of medium-thick hot-rolled plate, reduce the surface roughness, and promote the ferrite transformation in the rolling process of the surface of the steel plate, reduce the ribbon structure near the surface, The surface of the organization evenly small, reducing the probability of surface defects.