９５－０１０铝合金用非铬缓蚀剂铝合金的表面复盖着一层含有５％～３０％二羟基偶氮螫合盐膜。二羟基偶氮螫合盐的结构单元如（１）所示，其中Ｘ为成盐阴离子，Ｍ为金属（主要是Ｚｎ、Ｓｎ、Ｓｒ及其它的碱土金属）。（１）的盐在水中的溶解度为０．０１～３ｇ／Ｌ最好为... 95-010 aluminum alloy with non-chromium corrosion inhibitor aluminum alloy covered with a layer containing 5% to 30% dihydroxy azo salt film. The structural unit of the dihydroxyazinium salt is represented by (1), wherein X is a salt-forming anion and M is a metal (mainly Zn, Sn, Sr and other alkaline earth metals). (1) salt in water solubility of 0.01 ~ 3g / L is preferably ...