【 Solar street lamps factory 】 Where is the difference between hot dipped galvanized and cold galvanized?

Cold galvanizing, also called electricity 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

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 galvanizing is the workpiece after degreasing, pickling, leaching, drying into the liquid zinc melt in a certain period of time, free to ask.

appearance difference:

seem more smooth, bright, galvanized passivation technology USES the color of the plating 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 & other; Coagulator & throughout; Gray, the zinc layer 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.

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.

however, LED street light, slightly rough, hot dip galvanized zinc layer is thicker than the electric galvanized dozens of times, anti-corrosion performance is also the galvanized dozens of times, on the price nature also is much taller than cold galvanizing, but in the long run, rust for more than 10 years of hot dip galvanized than only 1 - 2 years of cold galvanizing popular antirust effect.

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