What are the matters caused smear removal uncleanness?

What are the matters casused smear removal uncleanness?

Smear removal uncleanness is very easy caused quality matters,so it’s very important to know the reason why smear removal uncleanness.

1.Drilling holes produce too much clutter.

2.The liquid temperature in the tank is too low.

3.Bulking time is not enough.

4.The PH value is not in a suitable range.

5.The smear removal tank is not clean,too much dopant.

6.The cycle of potassium permanganate is not good.

Clemons Van