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本文描述控制轧制技术,采用两机座二、四辊轧机,进行14毫米厚14MnVTiRe钢板的轧制,通过试验制定出合适的工艺参数,(1) 正常化后,性能(σs)按45公斤级考核,合格率由45%提高到86%;(2) 在取消正常化工艺的情况下,可保证性能的要求,将钢的σs由原40公斤级提高到50公斤级;(3) 控制轧制钢的显微组织结构比非控制轧制钢晶粒细化二级,并出现亚晶;珠光体层间细化.此外,控制轧制钢断口纤维状大部分是100%;而非控制轧制钢基本是零.
This article describes the control rolling technology, the use of two two-four-roll mill, 14 mm thick 14MnVTiRe steel rolling, through the test to develop the appropriate process parameters, (1) normalized, the performance (σs) by 45 kg Level examination, the passing rate from 45% to 86%; (2) in the abolition of the normalization process, the performance requirements can be guaranteed, the steel σs from the original 40 kg to 50 kg; (3) control The microstructure of the rolled steel was finer than that of the non-controlled rolled steel and subgrain appeared, and the pearlite was refined between the layers.In addition, most of the controlled-rolled steel fractured fibers were 100% Control of rolled steel is basically zero.