INDUSTRI NYHEDER

What is the reason why the aluminum profile is light and black when it is black at normal temperature? How to deal with it?

2019-05-05

The reason:

1 black time short profile oxidation, residue on the parts;
2-opløsning surhedsgrad er lav;
3 Sammensætningen af ​​opløsningen er ude af proportioner.

Approach:
1 control the blackening time;
2 supplerende koncentrat
3 Supplement the adjustment solution components.