Alkali corrosion is the most important working order in the surface treatment of aluminium profile before being oxidized.It directly affects surface quality of aluminium profi les.On the base of refering techni～cal data of home and abroad,and according to the function of aluminium,grit dose is developed.It gains good economic benefit.%介绍了砂面剂的研制工作。在参考国内外技术资料的基础上，根据铝的性能，从碱液浓度、温度、搅拌、络合、整平、增光等方面进行试验，开发了铝型材砂面剂，取得良好的经济效益。
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