Pre-treatment before color plating 1.Zinc alloy, plastic : Copper and Matt nickel plating 2.Brass part : wheel polishing A.Brushed nickel: 1.Brushed finish treatment 2.Ultrasonic degrease deoil and wax 30s 3.Nickel plating - Oven baking at 120 °C for 40 minutes 4.Sealing oil 5.Drying at 120 °C for 40-60 minutes B.Brushed gold: 1.Ultrasonic degrease deoil and wax 30s 2.Plating thickness imitation gold for 30 mins 3.Oven baking at 120 °C for 40 minutes 4.Brushed finish 5.Sealing oil 6.Drying at 120 °C for 40-60 mins C. Brushed gun black: 1. Brushed finish treatment 2. Ultrasonic degrease deoil and wax 30s 3. Plating gun color for 30 mins 4. Oven baking Oven baking at 120 °C for 40 minutes 5. Sealing oil 6. Drying at 120 °C for 40-60 mins D. Brushed rose gold: 1. Ultrasonic degrease deoil and wax 30s 2. Plating thick nickel for 30 mins 3. Oven baking at 120 °C for 40 minutes 4. Brushed 5. Sealing oil 6. Drying at 120 °C for 40-60 mins Matt Black/white Finish Painting Procedure
A.Brass part 1.Sanding piece, #600 buffing wheel 2.Pre-treatment before plating - ultrasonic degrease for 3 minutes-cleaning in tank for 1 minute - ultrasonic degrease for 3 minutes - cleaning in tank for 3 minutes - chromic acid activation in tank 1 minute -chromic acid recovery neutralization 2 minutes - cleaning in tank 3 minutes. 3.Water washing 1 minute. 4. Drying (120℃±10℃ 10minutes) - Packaging. 5. Brush finish treatment. 6.Spraying pre-treatment- ultrasonic deoil & wax 60`s - cleaning in tank - passivation pool 20s-pure pool40`s times - Ultrasonic pool 20`s- air gun drying. 7.Alcohol test brush 8.Oven baking (120℃ 30 minutes) 9.Block with plug 10.Dust removal. 11.Spray primer. 12.Spray topcoat. 13.Curing (180℃±5℃ 60minutes) B.Zinc alloy, plastic, stainless steel 1.Acid copper plating 2.Acid copper chemical blackening (blackening time 10 minutes) 3.Oven drying (75℃ 40minutes) 4.Spray pretreatment (cleaning in tank) – ultrasonic deoiling 60 seconds – tap water tank leaching 20 seconds 4 times – passivation tanks 20 seconds –pure water immersion 20 seconds 2 times – Ultrasonic pool 20 seconds – air gun drying 5.Oven baking (zinc alloy parts / stainless steel parts: 120℃ 30 minutes) ( plastic parts: 75℃ 30 minutes ) ( plastic parts have low melting point and baking temperature should not be higher than 75℃) 6.Dust removal 7.Spray primer 8.Spray topcoat 9.Curing furnace baking (zinc alloy parts / stainless steel parts: 140℃ 40 minutes) (plastic parts: 75℃ 40 minutes)
