Year1
- 包装：
- 桶装
- 规格：
- 25kg/桶
Process Features
: The trivalent chromium passivation agent used to treat aluminum materials before spraying complies with EU directives and directives and meets environmental protection requirements.
Used in the production of trivalent chromium passivation of aluminum materials, including pure aluminum, aluminum alloys and aluminum die castings
Strong corrosion resistance, performance better than hexavalent chromium passivation process, neutral Salt spray can last for more than 3 hours
After passivation, a transparent, light-colored coating is formed. The specific color is determined by the purity of the aluminum material
The coating has good temperature resistance and can be used at high temperatures without Reduce its corrosion resistance
High concentration of coating agent and low consumption
Can be used for pre-treatment of aluminum spray painting, powder spraying and gluing
In dipping, spraying and manual wiping processes All are easy to operate.
Aluminum film composition and operating conditions:
Aluminum film composition and process conditions
Spraying
Dipping
Pre-spraying aluminum trivalent chromium passivation agent
ml/L
ml/L
Temperature
3-℃
3-℃
Value
3
3
Time
Minutes
Minutes
3
Plating solution preparation method:
Inject half of the water into the passivation tank,
Add the calculated amount of trivalent chromium aluminum film agent,
add water to the working liquid level, and stir evenly.
Equipment requirements
The plating tank is lined with a plastic tank or stainless steel tank with an acid-resistant and fluorine-resistant lining
Circulation filtration: The filter pump can filter the plating solution within at least one hour Twice
Consumption of aluminum coating agent:
Most of the consumption is carry-out loss. For every square meter of product processed (including carry-out), - ml of concentration needs to be added liquid.
Common process flow:
Oil removal, alkaline weak corrosion, acid removal, ash removal, passivation, drying and aging
WhatsApp
