Passivation liquid
A passivation treatment and material technology, applied in the direction of metal material coating process, etc., can solve the problems of etching, poor cooling effect, etc., achieve long life, good promotion and use value, and improve the effect of treatment
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Embodiment 1
[0016] A kind of passivation treatment liquid, is made up of the material of following parts by weight:
[0017] 15 parts of molybdate, 8 parts of tungstate, 3 parts of phytic acid, 2 parts of tartaric acid, 1 part of titanate coupling agent, 5 parts of polyvinyl alcohol, 2 parts of sodium fluoroborate, 0.5 parts of benzotriazole, 1 part acrylic acid, 900 parts water.
[0018] The passivation treatment solution of the present invention can form a passivation film with uniform and stable quality on the surface of the galvanized stainless steel, and the white rust time exceeds 120 hours through a neutral salt spray test.
Embodiment 2
[0020] A kind of passivation treatment liquid, is made up of the material of following parts by weight:
[0021] 18 parts of molybdate, 10 parts of tungstate, 6 parts of phytic acid, 5 parts of tartaric acid, 4 parts of titanate coupling agent, 7 parts of polyvinyl alcohol, 4 parts of sodium fluoroborate, 1.5 parts of benzotriazole, 2 parts acrylic acid, 1000 parts water.
[0022] The passivation treatment solution of the present invention can form a passivation film with uniform and stable quality on the surface of the stainless steel after magnesium plating, and the white rust time exceeds 116 hours through a neutral salt spray test.
Embodiment 3
[0024] A kind of passivation treatment liquid, is made up of the material of following parts by weight:
[0025] 16 parts of molybdate, 9 parts of tungstate, 5 parts of phytic acid, 4 parts of tartaric acid, 3 parts of titanate coupling agent, 6 parts of polyvinyl alcohol, 3 parts of sodium fluoroborate, 1 part of benzotriazole, 1.5 parts acrylic acid, 950 parts water.
[0026] The passivation treatment solution of the present invention can form a passivation film with uniform and stable quality on the surface of stainless steel, and the white rust time exceeds 108 hours through a neutral salt spray test.
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