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1. Causes cause plating layers peeled as well as preventive measures for Electro-plating components:
1) The key to accomplishing good bond is to make certain an active metal surface completely void of oils, oxides, alloying inclusions or warm reward range. If pretreatment is not well done, the contaminations continued to be on metal surface area will certainly weak the bond.
Safety nets: inspect every set to make sure the removal of oil is comprehensive, the cleaning water is clean, the focus of acid leaching service is heavy as required and the etching time is enough.
2) It might be that the disruption of the existing in the electroplating process creates the poor mix between the nickel layer as well as item, as well as this existing interruption phenomenon may be caused by the poor conductivity of the hanging device.
Preventive measures: daily check the hanging devices to ensure there is no damage.
3) When the brightener is included excessive, the bonding force in between plating layers is bad.
Preventive measures: daily check the electro-plating service consisting of brightener to be made according to criteria.
4) PH value, electrical present, temperature level could additionally be the reasons.
Preventive measures: day-to-day check the electro-plating solution as well as plating equipment.
2. Reasons bring about incomplete and also peeled-off finishing and preventive measures for Powder layered components:
1) Insufficient covering:
If the covering line is automated, maybe the reasons that the turning rate of hanging gadgets as well as range in between parts and blowguns are too much or as well close. The small positions inside the cavity can not be totally covered with coating powder.
Brass Forging If the finishing line is hand-operated, workers really did not carry out a professional work.
Preventive measures: For automated finishing line, set up the proper revolving rate of hanging distance in between components as well as blowguns. For manual line, train the workers to function even more mindful and check every item.
2) Peeled-off coating:
Keys reasons could be Pretreatment inadequate, Drying time too short or temperature level as well low.
Safety nets: Pretreatment to remove the contaminations should be complete, such as oil, lube, oxides, alloying additions or warm reward scale.
Lengthen the drying out time or established a greater drying out temperature level according to work instruction.
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