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[Introduction]
It is a kind of ternary polycrystal phosphorizing
agent,which can be used in the phosphorizing treatment of
zinc plating layer and aluminium product. Range of film weight:
2.0 to3.5g/m2.
[Technology]
Process:
Degreasing,insing,surface treatment,phosphorizing treatment,rinsing,after
treatment,rinsing with passivation or deionisation.
[Tank liquor control]
| Temperature: |
45-55  |
| Time: |
2-5 minutes |
| Total acid: |
18-24 |
| Free acid: |
0.8-1.2 |
| Accelerant: |
1.5-3.5 |
[Proportioning of tank liquor]
Pour three-quarter water into the tank,then add the following
chemicals(volumetric ratio).
| XF-A2 tank matching
agent |
2.8-4.0% |
| XF-A2 auxiliary
tank matching agent |
0.7-0.9% |
| XF-A buffering agent |
2.2-2.4% |
| XF-A accelerant |
0.03-0.035% |
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