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LED lamp hand-made samples series 04

Source: Original Editor: manual labor outsourcing factory Time: 18:23, August 19, 2019
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LED lamp hand-made samples series 04




The difference of Technology:
Cold galvanizing is also called electro galvanizing Hand work out After degreasing and pickling, the electrolytic equipment puts the workpiece into the solution composed of zinc salt, and connects with the negative pole of the electrolytic equipment. A zinc plate is placed on the opposite side of the workpiece and connected to the positive pole of the electrolytic equipment. When the power is turned on, a layer of zinc will be deposited on the workpiece by moving the current from the positive to the negative;
Hot dip galvanizing is to Hand work out After degreasing, pickling, dipping and drying, the workpiece is immersed in the molten zinc solution for a certain period of time, and then it can be lifted out.
 
Differences in appearance:
The surface of electroplated zinc is relatively smooth and bright, and the electroplating layer with color passivation process is mainly yellow green, showing seven colors. The plating layer with white passivation process is bluish white or white with green light, and the plating layer with white passivation process shows slightly colorful at a certain angle with sunlight. It is easy to produce "electric burning" in the corner of complex workpiece, and the zinc layer is thick. It is easy to form a dead current angle in the inner corner, which leads to the under current gray area, where the zinc layer is thin. The whole workpiece is free of zinc nodules and caking.
The appearance of hot-dip galvanizing is slightly rough than that of electro galvanizing, which is silvery white. The appearance is easy to produce process water lines and a few drops, especially at one end of the workpiece.
 
However, the zinc coating of slightly rough hot-dip galvanizing is dozens of times thicker than that of electro galvanizing, and its corrosion resistance is also dozens of times higher than that of galvanizing. Naturally, the price is much higher than that of cold galvanizing Hand work out In the long run, hot dip galvanizing with antirust for more than 10 years will be more popular than cold galvanizing with only 1-2 years anti rust effect.