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为保证汽车用钢板的深冲性能,使其符合YB215-64规定的指标,我厂对钢板生产工艺的全过程中具有决定作用的三个环节 (钢质、热轧及冷轧) 进行了研究改进,建立了通常所说的钢质是基础,热轧三高一低 (高的加热、开轧和终轧温度,低的卷取温度) 是前提,冷轧一稳、二双、三麻面、四一组 (用稳定的压下率、双台阶退火工艺及麻面轧辊生产出符合YB215-64中规定的第一组表面的钢板) 是保证的、较为合理的工艺制度,并在生产上取得了极好的效果.
In order to ensure the deep-drawing property of automobile steel plate and make it comply with the index specified by YB215-64, we have studied the decisive role of the steel plate production process (steel, hot-rolled and cold-rolled) in the whole production process of steel plate Improvement, the establishment of the so-called steel is the foundation, the hot three high and one low (high heating, rolling and finishing temperature, low coiling temperature) is the premise, a stable cold, two pairs, three Ma Surface, group of 41 (with a steady reduction rate, double-step annealing process and the production of Ma plate in line with YB215-64 specified in the first group of the surface of the steel plate) is to ensure a more reasonable system of technology and production Have achieved excellent results.