Environment-friendly insulating coating solution used for non-oriented silicon steel and preparation and application thereof
An insulating coating, oriented silicon steel technology, applied in the direction of metal material coating process, etc., can solve the problems of unsatisfactory coating corrosion resistance, poor substrate wettability, and poor coating appearance, and achieve good resistance to corrosion. Chemical properties and anti-corrosion properties, solving the effects of moisture absorption, stickiness and small wear
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Embodiment 9
[0045] The aluminum dihydrogen phosphate solution used in Example 9 was prepared by reacting 35% by mass of 85% phosphoric acid, 6% aluminum hydroxide and 59% deionized water. The preparation method is as follows: dilute 85% phosphoric acid to a phosphoric acid solution with a mass fraction of 60%, add it to the reaction kettle, heat up to 90°C, add 6% aluminum hydroxide in batches, and stir for 1.5 hours. Keep the temperature constant, and add a corresponding amount of deionized water. After the solution is clarified, cool it down for later use.
[0046] The magnesium dihydrogen phosphate solution used in Example 9 was prepared by reacting 35% by mass of 85% phosphoric acid, 2% magnesium oxide and 63% deionized water. The preparation method is as follows: dilute 85% phosphoric acid to a phosphoric acid solution with a mass fraction of 60%, add it to the reaction kettle, heat up to 40°C, add 2% magnesium oxide in batches and stir for 1.5 hours, and keep the temperature during ...
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