Automobile part surface treatment process
A technology for auto parts and surface treatment, which is applied in the direction of pretreatment surface, device for coating liquid on the surface, coating, etc., which can solve the problems of reducing compression and wear resistance, metal content reduction, lack of compression and wear resistance, etc. , to achieve the effect of increasing cohesion, good compression and wear resistance, and enhanced decontamination effect
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Embodiment 1
[0033] A surface treatment process for auto parts, comprising the following steps: 1) Polishing: the auto parts to be treated are first polished with 200-mesh sandpaper, then put into chemical polishing reagents for chemical polishing, washed with water, and blown dry; the chemical polishing reagents are A mixed solution of nitric acid and glacial acetic acid with a substance ratio of 1:0.5, the concentration of nitric acid is 1mol / L;
[0034] 2) Spray: At 40°C, spray the surface of the polished auto parts with spray liquid for 2 minutes, repeat the spray after 2 minutes, spray 3 times in total, and then wash with water; the solvent of the spray liquid depends on the volume Composed of water and ethanol with a ratio of 15:1, the solute of the spray liquid is sulfuric acid, the concentration of sulfuric acid is 3mol / L; the spray pressure is 0.2MPa;
[0035] 3) Plasma surface treatment: use the spray gun of the vacuum plasma treatment equipment to move at a constant speed relati...
Embodiment 2
[0042] A surface treatment process for auto parts, comprising the following steps: 1) Polishing: the auto parts to be treated are first polished with 500-mesh sandpaper, then put into a chemical polishing reagent for chemical polishing, washed with water, and blown dry; the chemical polishing reagent is A mixture of nitric acid and glacial acetic acid with a substance ratio of 1:0.8, the concentration of nitric acid is 1.5mol / L;
[0043] 2) Spray: At 45°C, spray the surface of the polished auto parts with spray liquid for 1.5 minutes, repeat the spray after 3 minutes, spray twice in total, and then wash with water; the solvent of the spray liquid is determined by Composed of water and ethanol with a volume ratio of 12:1, the solute of the spray solution is sulfuric acid, and the concentration of sulfuric acid is 4mol / L; the spray pressure is 0.3MPa;
[0044] 3) Plasma surface treatment: use the spray gun of the vacuum plasma treatment equipment to move at a constant speed rela...
Embodiment 3
[0051] A surface treatment process for auto parts, comprising the following steps: 1) Polishing: the auto parts to be treated are first polished with 800-mesh sandpaper, then put into chemical polishing reagents for chemical polishing, washed with water, and blown dry; the chemical polishing reagents are The mixed solution of nitric acid and glacial acetic acid with a ratio of substance quantity of 1:1, the concentration of nitric acid is 2mol / L;
[0052] 2) Spraying: at a temperature of 50°C, spray the surface of the polished auto parts with the spray liquid for 2 minutes, repeat the spray after an interval of 3 minutes, spray 3 times in total, and then wash with water; the solvent of the spray liquid is determined by volume Composed of water and ethanol with a ratio of 15:1, the solute of the spray liquid is sulfuric acid, the concentration of sulfuric acid is 5mol / L; the spray pressure is 0.4MPa;
[0053] 3) Plasma surface treatment: use the spray gun of the vacuum plasma t...
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Abstract
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