金属封闭处理是弥补表面阳极氧化膜上高孔隙率和高吸附力的缺陷重要措施，因此氧化膜无论是否进行染色处理，均应及时进行封闭处理，以提高零部件的抗腐蚀性、耐晒性、耐磨性和绝缘性。封闭处理技术包括：重铬酸盐封闭法、水和封闭法、水解盐封闭法和有机物封闭法。
为提高铝及其合金氧化膜的耐蚀性和耐污能力，必须对膜作常温封闭处理。
The sealing treatment of anodized aluminum and its alloys is required for improving the anti- fouling and corrosion resistance performances.
文章结合地震检波器零件的封闭处理实验，论述铝合金氧化膜封闭处理的好处。
On the basis of the seal processing experiment to seismic geophone parts, the advantages of seal processing to the oxide film of alloy aluminium are related.
改进了卷材与涂膜的粘结方法及卷材与卷材搭接的封闭处理，提高了防水性能。
By improving the bonding method of the rolled material and the painted membrane and the overlap treatment of the rolled material, waterproofing performance is enhanced.
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