Composition for surface treatment on aluminum flexible connection
A surface treatment and composition technology, which is applied in the field of compositions for surface treatment of aluminum soft joints, can solve the problems of poor coating surface brightness, uneven coating surface, graying, etc., and achieves high brightness, dense and uniform surface. Effect
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[0079] Example 1
[0080] Example 1 of the present invention provides a composition for surface treatment of aluminum flexible joints. Each 1L of composition contains:
[0081] 200g of nickel sulfate;
[0082] Chloride salt 40g;
[0083] Boric acid 37g;
[0084] Complexing agent 9g;
[0085] Additive 1.4g;
[0086] Wetting agent 0.3g.
[0087] The chloride salt is nickel chloride.
[0088] The complexing agent is sodium citrate.
[0089] The additives are 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzene sulfinate.
[0090] The weight ratio of the 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzenesulfinate is 1:1.
[0091] The wetting agent is cetylpyridinium bromide.
[0092] The preparation method of the composition for surface treatment of aluminum soft joints is as follows: weigh each component according to the above-mentioned content, add water to prepare 1L, and reserve.
Example Embodiment
[0093] Example 2
[0094] Example 2 of the present invention provides a composition for surface treatment of aluminum flexible joints. Each 1L of the composition contains:
[0095] Nickel sulfate 195g;
[0096] Chloride salt 38g;
[0097] Boric acid 35g;
[0098] Complexing agent 8g;
[0099] Additive 1.2g;
[0100] Wetting agent 0.2g.
[0101] The chloride salt is nickel chloride.
[0102] The complexing agent is sodium citrate.
[0103] The additives are 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzene sulfinate.
[0104] The weight ratio of the 2-amino-5-chlorobenzenesulfonic acid to sodium p-acetamidobenzene sulfinate is 0.8:1.
[0105] The wetting agent is cetylpyridinium bromide.
[0106] The preparation method of the composition for surface treatment of aluminum soft joints is as follows: weigh each component according to the above-mentioned content, add water to prepare 1L, and reserve.
Example Embodiment
[0107] Example 3
[0108] Example 3 of the present invention provides a composition for surface treatment of aluminum flexible joints. Each 1L of the composition contains:
[0109] Nickel sulfate 205g;
[0110] 42g of chloride salt;
[0111] Boric acid 40g;
[0112] Complexing agent 10g;
[0113] Additive 1.5g;
[0114] Wetting agent 0.4g.
[0115] The chloride salt is nickel chloride.
[0116] The complexing agent is sodium citrate.
[0117] The additives are 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzene sulfinate.
[0118] The weight ratio of the 2-amino-5-chlorobenzenesulfonic acid and sodium p-acetamidobenzenesulfinate is 1.2:1.
[0119] The wetting agent is cetylpyridinium bromide.
[0120] The preparation method of the composition for surface treatment of aluminum soft joints is as follows: weigh each component according to the above-mentioned content, add water to prepare 1L, and reserve.
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