A kind of ultra-low temperature metal passivation phosphating solution and preparation method thereof
A technology of metal passivation and phosphating solution, applied in the direction of metal material coating process, etc., can solve the problems of few breakthrough progress in phosphating technology, and achieve the effect of shortening production cycle, improving working environment and easy production.
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Embodiment 1
[0017] An ultra-low temperature metal passivation phosphating solution, the components and the mass concentration of each component are as follows: phosphoric acid 100g / L, tartaric acid 2g / L, sodium chlorate 2g / L, sodium dihydrogen phosphate 3g / L, fluotitanic acid 6g / L L, ammonium citrate 8g / L, triethanolamine 6g / L, tannic acid 2g / L, sodium molybdate 3g / L, water-based polyurethane 8g / L, m-xylylenediamine 5g / L.
[0018] Weigh phosphoric acid, tartaric acid, sodium chlorate, dihydrogen phosphate, fluotitanic acid, ammonium citrate, triethanolamine, molybdate, water-based polyurethane and m-xylylenediamine according to the mass concentration, mix well, add water to 1L, Raise the temperature to 60°C and stir for 40 minutes, then add a surfactant and stir to obtain an ultra-low temperature metal passivation phosphating solution.
Embodiment 2
[0020] An ultra-low temperature metal passivation phosphating solution, the components and the mass concentration of each component are as follows: phosphoric acid 300g / L, tartaric acid 18g / L, sodium chlorate 10g / L, zinc dihydrogen phosphate 10g / L, fluotitanic acid 1g / L L, ammonium citrate 2g / L, triethanolamine 1g / L, dodecyltrimethylammonium bromide 10g / L, ammonium molybdate 12g / L, water-based polyurethane 8g / L, m-xylylenediamine 2g / L .
[0021] Weigh phosphoric acid, tartaric acid, sodium chlorate, dihydrogen phosphate, fluotitanic acid, ammonium citrate, triethanolamine, molybdate, water-based polyurethane and m-xylylenediamine according to the mass concentration, mix well, add water to 1L, Raise the temperature to 60°C and stir for 40 minutes, then add a surfactant and stir to obtain an ultra-low temperature metal passivation phosphating solution.
Embodiment 3
[0023] An ultra-low temperature metal passivation phosphating solution, the components and the mass concentration of each component are as follows: phosphoric acid 150g / L, tartaric acid 6g / L, sodium chlorate 4g / L, sodium dihydrogen phosphate 8g / L, fluotitanic acid 5g / L L, ammonium citrate 6g / L, triethanolamine 2g / L, dodecyltrimethylammonium bromide 4g / L, sodium molybdate 5g / L, water-based polyurethane 18g / L, m-xylylenediamine 3g / L .
[0024] Weigh phosphoric acid, tartaric acid, sodium chlorate, dihydrogen phosphate, fluotitanic acid, ammonium citrate, triethanolamine, molybdate, water-based polyurethane and m-xylylenediamine according to the mass concentration, mix well, add water to 1L, Raise the temperature to 60°C and stir for 40 minutes, then add a surfactant and stir to obtain an ultra-low temperature metal passivation phosphating solution.
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