Method for preventing automobile bumper surface from blister
A technology for automobile bumpers and bumpers, which is applied to the device for coating liquid on the surface, special surfaces, coatings, etc., which can solve problems affecting surface quality, improve quality and service life, and reduce foaming.
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[0014] A method to avoid blistering on the surface of a car bumper. The specific steps of the method are as follows:
[0015] (1) Pre-treatment, use industrial alcohol as a solvent to remove surface oil stains, inorganic salts, mold release agents and other factors that affect performance;
[0016] (2) Degreasing, using high-pressure water washing for degreasing treatment, using alkaline solutions or organic solvents to remove oil stains on the surface of metal workpieces by saponification, emulsification or soaking and dissolution;
[0017] (3) Drying treatment, when the bumper temperature is 100-200℃, the best baking time is 15-35 minutes;
[0018] (4) Electrostatic dust removal, plastic is a poor conductor, it is easy to generate static electricity and attract dust. Ionized air is used for dust removal, that is, compressed air passes through a high-pressure nozzle, and uses corona discharge to ionize the air, and the ionized air is blown to the plastic surface to neutralize Du...
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