发明授权
US4370173A Composition and method for acid cleaning of aluminum surfaces 失效
铝表面酸洗的组成和方法

Composition and method for acid cleaning of aluminum surfaces
摘要:
Lubricating oils and aluminum fines are removed from aluminum surfaces by contacting the surfaces with an aqueous solution containing sulfuric acid, hydrofluoric acid, and an alkali metal 2-butoxyethoxyacetate anionic surfactant. The solution may also contain one or more low foaming nonionic surfactants.
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