INDUSTRY NEWS

Care este motivul pentru care suprafața profilului de aluminiu este în neglijarea temperaturii normale? Cum să facem acest lucru?

2019-05-05
The reason:
1 grease, rust and scale are not removed;
2 After the blackening, the residual liquid is not washed;
3 părți se agită prea repede;
4 parts overlap or fail to flip.

Approach: 
1 strengthen pre-treatment, degreasing and pickling;
2 After the blackening, the residual liquid should be washed;
3 parts shaking speed should be appropriate;
4 parts should be flipped to prevent overlap.