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CN106868360A 一种汽车车身用铝合金内板及其制作方法 无效 - 驳回

一种汽车车身用铝合金内板及其制作方法
摘要：
本发明提供一种汽车车身用铝合金内板及其制作方法，属于铝合金制备技术领域。汽车车身用铝合金内板的制作方法包括将铝合金内板原料在720－760℃的条件下熔炼成熔体，通过多级联合熔体净化步骤对熔体进行净化处理，并将净化后的熔体在700－710℃的条件下浇注成铝合金铸锭，并将铝合金铸锭进行多次轧制处理；汽车车身用铝合金内板包括按照重量百分比计的以下组分：0－0.1％的Si、0.16－0.2％的Fe、0－0.05％的Cu、0.18－0.24％的Mn、4.5－4.8％的Mg、0－0.1％的Cr、0－0.2％的Zn、0－0.1％的Ti，余量为Al。本发明的汽车车身用铝合金内板强度高、韧性、塑性好。
摘要（英）：

The invention provides an aluminum alloy inner plate for an automobile body and a manufacturing method for the aluminum alloy inner plate and belongs to the technical field of aluminum alloy preparation. The preparation method for the aluminum alloy inner plate for the automobile body comprises the steps that aluminum alloy inner plate raw materials are smelted into a melt under the condition of 720-760 DEG C, the melt is subjected to purification treatment through a multistage combined melt purification step, the purified melt is poured into an aluminum alloy ingot under the condition of 700-710 DEG C, and the aluminum alloy ingot is subjected to repeated rolling treatment. The aluminum alloy inner plate for the automobile body comprises the following components of, by weight, 0-0.1% of Si, 0.16%-0.2% of Fe, 0-0.05% of Cu, 0.18%-0.24% of Mn, 4.5%-4.8% of Mg , 0-0.1% of Cr, 0-0.2% of Zn, 0-0.1% of Ti, and the balance Al. The aluminum alloy inner plate for the automobile body is high in strength and good in toughness and plasticity.

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