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为了获得深冲性能优良的冲压用冷轧板,对济钢加钛深冲钢的化学成分进行了优化设计,即降低了碳质量分数,并采用高温终轧、高温卷取、适宜的冷轧变形量(70%～75%)等优化的热轧、冷轧和退火工艺。工艺优化后的加钛深冲钢具有比原工艺更低的下屈强比、更高的塑性应变比、更高的应变硬化指数和更多的有利的{111}取向织构比例,最终使其具有优异的深冲性能,满足了市场的深冲压要求。
In order to obtain the deep drawing high-performance cold-rolled sheet for stamping, the chemical composition of Jinan Iron and Steel deep drawing of titanium has been optimized, that is, reducing the carbon mass fraction, and the use of high temperature rolling, high temperature coiling, suitable cold rolling Deformation (70% to 75%) and other optimized hot-rolled, cold-rolled and annealed. The process optimized titanium plus deep drawing steel has a lower yield ratio, a higher plastic strain ratio, a higher strain hardening index and more favorable {111} oriented texture ratio than the original process, It has excellent deep-drawing properties to meet the market’s deep drawing requirements.