| 摘要 |
PROBLEM TO BE SOLVED: To provide an aqueous cleaning solution which has adequate corrosion resistance particularly to aluminum and aluminum alloy after having been metal-worked, also prevents a color change of a newly formed surface, and is superior in rust prevention properties and defoaming properties. SOLUTION: The aqueous cleaning solution includes at least one compound selected from the group (A) consisting of sodium diphenyl ether disulphonate having an 8-18 C alkyl group, sodium naphthalene sulfonate having an 8-18 C alkyl group, a 15-18 C alkylsulfate, and a sodium salt of a 8-18 C sulfonated olefin. COPYRIGHT: (C)2011,JPO&INPIT
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