Chemical washing

Thanks to the versatility of our plant it is also possible to carry out only washing and/or passivation cycles of the parts.

Some examples of treatments we can offer are those described in VW standards TL82427 and TL82428, see cycle below (all tanks are optional and can be used according to customer needs):

Position 1: Spray alkaline degreasing. Temperature: 45°- 60°C
Position 2: Alkaline degreasing by submersion. Temperature 45°- 60°C
Position 3: Alkaline degreasing by submersion. Temperature 50°- 60°C
Position 4: Rinsing by submersion. Room temperature
Position 5: Rinsing by submersion. Room temperature
Position 6: Acid hot pickling. Temperature 45°- 50°C
Position 7: Rinsing. Room temperature
Position 8: Micronized zinc activation. Room temperature
Position 9: Micronized salt zinc phosphate treatment by submersion. Temperature 30°-40°C
Position 10: Rinsing by submersion. Room temperature
Position 11: Demineralised water rinsing. Room temperature
Position 12: Aluminium passivation bath. Room temperature / Position 13: Treatment with film-coating nanotech agent with passivating effect zirconium + Cr III by submersion. Room temperature
Position 14: Demineralised water rinsing. Room temperature.
Position 18: Blowing chamber.
Position 19: Manual blowing.
Position 20: Drying. Temperature 50°- 100°C
Position 21: Drying oven, reticulation, firing. Temperature 170°C, 85 min.
Position 22: Cooling.