Evaluation of Peeled-off issue for Electro-plating and Powder finish parts
1. Reasons result in plating layers peeled off and preventive measures for Electro-plating parts:
1) The essential to achieving good attachment is to guarantee an energetic metal surface area adequately void of oils, oxides, alloying incorporations or heat treat scale. If pretreatment is not well done, the contaminations remained on metal surface area will weak the adhesion.
Preventive measures: inspect every batch to ensure the elimination of oil is comprehensive, the cleansing water is clean, the concentration of acid leaching solution is hefty as required and the etching time is enough.
2) It might be that the disturbance of the existing in the electroplating procedure causes the bad mix in between the nickel layer as well as product, and also this present disturbance phenomenon might be caused by the bad conductivity of the hanging tool.
Preventive measures: everyday check the hanging gadgets to see to it there is no damages.
3) When the brightener is added excessive, the bonding pressure between plating layers is not good.
Preventive measures: everyday check the electro-plating service consisting of brightener to be made according to standards.
4) PH worth, electric present, temperature might additionally be the reasons.
Valve Housing
Preventive measures: everyday check the electro-plating remedy and also plating devices.
2. Causes result in insufficient and peeled-off finishing as well as preventive measures for Powder layered parts:
1) Incomplete layer:
If the finishing line is automated, it could be the causes that the rotating speed of hanging devices and distance in between components and also blowguns are as well far or as well close. The small settings inside the cavity can not be totally covered with finishing powder.
If the layer line is hands-on, workers didn't do a professional work.
Safety nets: For automatic finish line, established the correct turning speed of hanging distance between parts and blowguns. For hands-on line, train the workers to work more careful as well as examine every piece.
2) Peeled-off finishing:
Hose Fitting
Keys causes could be Pretreatment inadequate, Drying time too short or temperature level as well reduced.
Safety nets: Pretreatment to get rid of the contaminations need to be thorough, such as oil, lube, oxides, alloying inclusions or heat reward range.
Lengthen the drying out time or set up a greater drying temperature according to work direction.
1) The essential to achieving good attachment is to guarantee an energetic metal surface area adequately void of oils, oxides, alloying incorporations or heat treat scale. If pretreatment is not well done, the contaminations remained on metal surface area will weak the adhesion.
Preventive measures: inspect every batch to ensure the elimination of oil is comprehensive, the cleansing water is clean, the concentration of acid leaching solution is hefty as required and the etching time is enough.
2) It might be that the disturbance of the existing in the electroplating procedure causes the bad mix in between the nickel layer as well as product, and also this present disturbance phenomenon might be caused by the bad conductivity of the hanging tool.
Preventive measures: everyday check the hanging gadgets to see to it there is no damages.
3) When the brightener is added excessive, the bonding pressure between plating layers is not good.
Preventive measures: everyday check the electro-plating service consisting of brightener to be made according to standards.
4) PH worth, electric present, temperature might additionally be the reasons.
Valve Housing
Preventive measures: everyday check the electro-plating remedy and also plating devices.
2. Causes result in insufficient and peeled-off finishing as well as preventive measures for Powder layered parts:
1) Incomplete layer:
If the finishing line is automated, it could be the causes that the rotating speed of hanging devices and distance in between components and also blowguns are as well far or as well close. The small settings inside the cavity can not be totally covered with finishing powder.
If the layer line is hands-on, workers didn't do a professional work.
Safety nets: For automatic finish line, established the correct turning speed of hanging distance between parts and blowguns. For hands-on line, train the workers to work more careful as well as examine every piece.
2) Peeled-off finishing:
Hose Fitting
Keys causes could be Pretreatment inadequate, Drying time too short or temperature level as well reduced.
Safety nets: Pretreatment to get rid of the contaminations need to be thorough, such as oil, lube, oxides, alloying inclusions or heat reward range.
Lengthen the drying out time or set up a greater drying temperature according to work direction.
Public Last updated: 2022-01-18 04:54:39 PM
