Lime treatment process for sand streaks on surface of lamp
A treatment process and sand grain technology, which is applied in the field of sand grain white ash treatment process on the surface of lamps and lanterns, can solve the problems of large effect difference, unnatural white ash, large color deviation, etc., achieve good finished product effect, small color deviation, and improve adhesion Effect
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[0034] The invention provides a process for treating sand grains and white ash on the surface of lamps, which includes the following steps:
[0035] S1. Phosphating and drying of the workpiece: After all metal products are phosphating, wash off the oil and rust on the surface of the metal products so that the primer can adhere to the metal surface, put the phosphating solution into the heating tank, and then Heat the temperature to 70-75°C, then place the workpiece in the heating tank and soak for 19-23 minutes. The phosphating solution takes the following raw material components according to the weight ratio: 15-20 parts of phosphoric acid, 5-10 parts of hydrochloric acid , 3-5 parts of oxalic acid, 3-5 parts of formic acid, 2-5 parts of succinic acid, 4-5 parts of lauric acid, 1-2 parts of sodium chloride, 2-3 parts of calcium hydroxide, 2-5 parts of iron oxide, 3-4 parts of disodium edetate, 3-5 parts of sodium pyrophosphate, 3-5 parts of sodium hexametaphosphate, 2-3 parts...
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