随着我国汽车工业的迅速发展,对于汽车用钢,不论从数量上,还是从品种、规格、质量上都提出了越来越高的要求。目前为汽车制造厂广泛使用的16MnL 汽车大梁板,对于生产厂来说,往往由于带状组织严重,不能满足冶金部标准 YB149-70的相应要求,而导致产品合格率低、生产管理困难,产量亦受到影响。而对于汽车制造厂来说,在冲压汽车大梁、后桥壳等零部件时, With the rapid development of China’s automobile industry, for automotive steel, both in terms of quantity, or from the species, specifications, quality have put forward higher and higher requirements. At present, 16MnL automobile girder slab widely used by automobile factories is often not suitable for metallurgical department standard YB149-70 due to serious ribbon structure, which leads to low product qualification rate, difficult production management, Also affected. For car manufacturers, stamping car beams, rear axle housing and other parts,