Rectifier knurled nuts
Quick Details
Place of Origin:Guangdong, China (Mainland), Guangdong, China (Mainland)
Brand Name:Lanejoy, Lanejoy
Model Number:PG18
Standard:GB
Material:Carbon Steel
Surface treatment:Zinc Plated Polished
Certificate:ISO9001:2015
Color:Zinc White
Size:Customized
Price Terms:FOB,CIF,CRF,EXW and others
Delivery Time:Within 20 workdays after receive payment
Model:Pg18
Packaging & Delivery
Packaging Details
opp bag/carton
Delivery Time
7 days
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Main Markets | Total Revenue(%) |
Southeast Asia | 20% |
South Asia | 20% |
Mid East | 20% |
Eastern Europe | 18% |
Northern Europe | 10% |
North America | 10% |
Africa | 2% |
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If the heat treatment is improper, the dirt is difficult to be removed or the treatment before plating is incomplete. The dirt is entrapped between the substrate and the plating layer, so that the adhesion between the plating layer and the substrate is poor, and the peeling off occurs easily during subsequent assembly and processing. When the proportion of the brightener is improper or the quality is poor, the pH is too high, the cathode current density is too high, and the temperature of the bath is too low, it will cause the hydrogen ions to infiltrate the matrix metal and the plating layer in the state of atomic hydrogen after the cathode is reduced. The "hydrogen embrittlement" phenomenon occurs due to the decrease of the toughness of the base metal and the plating layer.