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我厂自投产以来,进行了控制轧制工艺试验,为摸索不同钢种(以碳当量划分)、不同规格的产品与加热温度、终轧温度、层流冷却速度、卷取温度之间的对应规律及成品的金相组织与机械性能的内在联系,提供和积累了许多经验和数据。控制轧制即是通过控制钢材热加工时的诸工艺参数,使钢材获得所期望的组织形态的一种轧制方法。采用这种方法可大幅度提高钢材的综合性能。目前国外对低碳、低合金钢系列通过控制轧制强化的机理有以下几方面:(1)细化晶粒强化;(2)沉淀强化;(3)亚结构强化;(4)相变强化。在各种强化手
Since the plant was put into production, the control rolling process test was carried out. In order to explore the relationship between different steel grades (divided by carbon equivalent), products with different specifications and heating temperature, finishing temperature, laminar cooling rate and coiling temperature Laws and the metallurgical structure of finished products and the inherent relationship between mechanical properties, provide and accumulate a lot of experience and data. Controlled rolling is through the control of the steel when the thermal processing of the process parameters, so that the desired shape and structure of the steel obtained by a rolling method. Using this method can greatly improve the overall performance of steel. At present, foreign countries for the low-carbon, low-alloy steel by strengthening the control rolling mechanism has the following aspects: (1) grain refinement; (2) precipitation strengthening; (3) substructure strengthening; (4) . In various fortified hands