Why street lamp manufacturers use hot dip galvanized?
Light pole with cold galvanized and hot dip galvanized factory is for the purpose of the corrosion, prolong the service life of street lamps and lanterns, but compared with the cold galvanized, hot dip galvanized can have the purpose of corrosion.
A, the craft is the difference between cold galvanizing is also called the electric galvanized, is the use of electrolytic equipment the workpiece after degreasing, pickling into the composition of zinc salt in the solution, and connect the cathode electrolytic equipment, placed in the workpiece on the opposite side of zinc plate connected to the anode electrolytic equipment, processing power, using the current from the positive to the negative directional movement, will deposits a layer of zinc on the workpiece;
Hot dip galvanizing is the workpiece after degreasing, pickling, leaching, drying into the liquid zinc melting in a certain period of time, free to ask.
Second, the appearance of the difference between electric galvanized seem more smooth and bright, the colour passivation technology of galvanized coating also yellow-green give priority to color, colorful.
USES white passivation technology of galvanized coating is bluish white or white with green, white passivation process of coating and under a certain Angle to the sun more colorful.
In the Angle of complex workpiece edge areas prone to coagulator and gloomy, the zinc layer is thicker.
In shade place is easy to form the current corner and produce less current gray area, the zinc layer is thinner.
Without zinc tumor, agglomerate phenomenon such as integral parts.
Hot dip galvanized appearance is a little rough, galvanized is silvery white, appearance is prone to process water lines and a few drops of tumor, especially in one end of the workpiece is more obvious.
But dozens of times thicker than the electric galvanized galvanized zinc layer, corrosion resistant performance is electric galvanized dozens of times.
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