根据铝合金碱蚀工艺条件和铝材碱蚀后的表面状况，对碱蚀槽的槽液进行维护，提出了碱蚀常见故障和排除方法。

According to the process condition and surface appearance of aluminium alloy after alkaline etching, etching solution was maintained. The common failure and trouble shooting were presented.

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根据铝合金碱蚀工艺条件和铝材碱蚀后的表面状况，对碱蚀槽的槽液进行维护，提出了碱蚀常见故障和排除方法。

According to the process condition and surface appearance of aluminium alloy after alkaline etching, etching solution was maintained. The common failure and trouble shooting were presented.

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