Fish-scaling-resistance acid pickling additive used for cold-rolled glassed steel
A technology of pickling additives and enamel steel, which is applied in the field of protection, can solve problems such as scale explosion, and achieve the effects of reduced hydrogen evolution, large swelling or dissolving capacity, and a wide range of hydrochloric acid concentration
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Embodiment 1
[0021] In the present embodiment, 70% of octylphenol polyoxyethylene (10) ether, 10% of hexamethylenetetramine, 10% of n-butanol, and 10% of sodium benzoate are taken by weight percentage, and these raw materials are uniformly mixed to obtain The anti-scale explosion pickling additive for cold-rolled enamelled steel of the present invention. Adding 1.0% of this additive in hydrochloric acid pickling with a mass fraction of 18% and pickling at 60°C can significantly improve the pickling quality of the steel plate surface and improve the anti-scaling performance of the steel plate.
Embodiment 2
[0023] In the present embodiment, 50% of octylphenol polyoxyethylene (10) ether, 25% of hexamethylenetetramine, 20% of n-butanol, and 5% of sodium benzoate are taken by weight percentage, and these raw materials are uniformly mixed to obtain The anti-scale explosion pickling additive for cold-rolled enamelled steel of the present invention. Adding 1.5% of this additive in hydrochloric acid pickling with a mass fraction of 16%, and pickling at 80°C, can obviously improve the pickling quality of the steel plate surface and improve the anti-scaling performance of the steel plate.
Embodiment 3
[0025] In the present embodiment, 55% of octylphenol polyoxyethylene (10) ether, 10% of hexamethylenetetramine, 15% of n-butanol, and 20% of sodium benzoate are taken by weight percentage, and these raw materials are uniformly mixed to obtain The anti-scale explosion pickling additive for cold-rolled enamelled steel of the present invention. Adding 1.4% of this additive in hydrochloric acid pickling with a mass fraction of 14% and pickling at 75°C can significantly improve the pickling quality of the steel plate surface and improve the anti-scaling performance of the steel plate.
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