Acidic weak corrosion agent for aluminum alloy

包装：

桶装

规格：

25kg/桶

.Features: Especially suitable for weak corrosion in aluminum alloy pre-treatment, it can provide uniform etching without damaging the substrate.
Remove the surface inorganic film to provide good bonding force for subsequent electroplating layers.
The reaction is mild and easy to control.
It can provide a uniform and dense substrate surface and is especially suitable for the pre-treatment process of cyanide-free zinc precipitation. If used with a cyanide-free zinc precipitation agent, the effect will be better.
.Solution composition and operating conditions:
Raw materials and operating conditions
Standard cylinder volume
Range
Aluminum alloy acidic weak corrosion agent
ml/liter< br/> -ml/liter
Temperature
℃
℃
Time
Minutes
Seconds-minutes

3. Preparation Solution:
When opening the cylinder, add half the volume of water to the tank.
Add the required amount of aluminum alloy acid microetchant and stir gently.
Add pure water to required volume.
.Solution analysis method:
Take a sample of .ml in an Erlenmeyer flask
Add ml of pure water
Add 3 drops of phenolphthalein indicator
Titrate with sodium hydroxide to Light red end point
Content of aluminum alloy acidic micro-etching agent (ml/L) titration of sodium hydroxide in ml
. Equipment requirements
Project requirements
Tank, or high density
Hanger, or type 3 stainless steel
Air mixing does not require moderate and uniform aeration
Mixing cycle does not require circulation
Adding system needs, the material of the feeding pump is, or, can be Resistant to strong alkali
Filtration system does not require continuous circulation filtration
Exhaust ventilation is required
Cooling system is required