ETCHING AGENT AND REPLENISHING SOLUTION THEREFOR, METHOD FOR ROUGHENING SURFACE OF MAGNESIUM COMPONENT, AND METHOD FOR MANUFACTURING MAGNESIUM-RESIN COMPOSITE
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Sep 17, 2015
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Dec 1, 2014
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The etching agent is an aqueous solution including at least one acid selected from the group consisting of inorganic acids other than nitric acid, and organic acids; and an organic nitrogen compound having a molecular structure containing N—OH or N—O−. The acid concentration of the etching agent is 0.05 to 3% by weight, and the organic nitrogen compound concentration of the etching agent is 0.005 to 5% by weight. By bringing the etching agent into contact with a surface of a magnesium component, fine irregularities can be formed on the surface of the magnesium component even when etching depth is large.
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