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三、铸轧板坯深冲铝板的工艺实践 1.深冲制品对铸轧板原始组织及性能要求为了确保深冲用铝板的冲压性能,必须严格控制铸轧坯料的化学成分和组织。实践证明,纯铝板材的化学成分应符合L3或L4(GB3192—82),其中杂质含量按厂内标准控制Fe为0.25％～0.35％,Fe:Si>2,同时加入适量的Al—Ti或Al—Ti—B细化剂。
Third, casting slab deep-drawn aluminum plate technology practice 1. Deep-drawing products on the original organization of cast-rolled plate and performance requirements In order to ensure the deep-drawn aluminum stamping performance, we must strictly control the chemical composition and organization of the cast billet. Practice has proved that the chemical composition of pure aluminum sheet should be consistent with L3 or L4 (GB3192-82), which impurities according to the factory standard control of Fe 0.25% to 0.35%, Fe: Si> 2, while adding the right amount of Al-Ti or Al-Ti-B refiner.