Notes

Evaluation of Peeled-off issue for Electro-plating and also Powder finishing components
1. Causes cause layering layers removed as well as safety nets for Electro-plating components:
1) The crucial to accomplishing great adhesion is to make certain an energetic steel surface area completely void of oils, oxides, alloying additions or warmth reward range. If pretreatment is not well done, the contaminations remained on metal surface area will weak the adhesion.
Safety nets: examine every batch to see to it the removal of oil is comprehensive, the cleansing water is tidy, the concentration of acid leaching solution is heavy as needed as well as the etching time is enough.
2) It might be that the interruption of the existing in the electroplating process creates the bad mix in between the nickel layer and product, as well as this current disruption sensation might be caused by the bad conductivity of the hanging gadget.
Preventive measures: day-to-day check the hanging devices to see to it there is no damages.
3) When the brightener is added excessive, the bonding pressure between plating layers is bad.
Preventive measures: daily check the electro-plating option consisting of brightener to be made according to requirements.
4) PH worth, electric existing, temperature level can likewise be the reasons.
air blow gun
Safety nets: daily check the electro-plating solution and also plating equipment.
2. Causes lead to incomplete and peeled-off finish and also preventive measures for Powder coated components:
1) Incomplete finishing:
If the coating line is automated, it could be the causes that the turning speed of hanging devices and also range in between parts as well as blowguns are as well much or also close. The little settings inside the cavity can not be completely covered with coating powder.
If the covering line is manual, employees didn't carry out a competent work.
Safety nets: For automated layer line, established the correct turning rate of hanging distance in between parts and blowguns. For hands-on line, educate the workers to function even more careful as well as inspect every item.
Stainless steel Investment Casting
2) Peeled-off covering:
Keys causes could be Pretreatment insufficient, Drying time also brief or temperature level also reduced.
Safety nets: Pretreatment to get rid of the contaminations have to be extensive, such as oil, lubricant, oxides, alloying incorporations or warmth treat range.
Zinc Die Casting
Prolong the drying out time or set up a greater drying out temperature level according to function direction.

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