First, the process distinction is: Hot-dip galvanizing is to soak the workpiece in the zinc solution for a certain period of time after degreasing, pickling, dipping, and drying, and then take it out. Cold galvanizing is also called electro galvanizing. It uses electrolytic products to turn the workpiece into a solution composed of zinc sea salt after degreasing and pickling, and connects the negative electrode of the electrolytic product, and places the zinc plate on the other side of the workpiece and connects it with the electrolytic phase. product. The positive pole is connected to a power source, and with the recent directional movement from the positive pole to the negative pole, a layer of zinc will be transferred into the workpiece. Obvious differences in appearance: The appearance of electro-galvanized is relatively smooth and bright, and the electroplating layer using color passivation process also changes color to green as the main color, which is full of vitality. The electroplating layer adopting the bright white passivation process is bluish bright white or bright white with green light, and the plating layer of the bright white passivation process is slightly bright in multiple directions of sunlight. The edges and corners of complex workpieces are blackened by "electric burning", and the zinc layer in this part is relatively full. The internal spot is easy to form a near-term dead direction, providing an undercurrent gray area, and the zinc level in this area is relatively light. The workpiece basically has no zinc tumor, agglomeration and other phenomena. The appearance of Puluo galvanized is slightly rougher than that of electro-galvanized, and it is silvery white. The surface is prone to normal processing water marks and a little water leakage, especially at one end of the workpiece. However, the zinc content of ordinary drip galvanizing is many times higher than that of electro-galvanizing, and its comprehensive performance of anti-deterioration is also many times higher than that of electro-galvanizing. The obvious difference of galvanized products: 1. The inner and outer wall spaces of the cold-galvanized metal pipe are galvanized, while the cold-galvanized metal pipe is only galvanized on the outer wall. 2. The layer of cold plating is consistent, and the fullness is thin, while the layer of hot plating is fuller, and the fullness is uneven. 3. The appearance of cold plating is very bright, although the popular electroplating color is darker. 4. The cold galvanized layer is finer and has poor deterioration resistance. The hot galvanized layer is fuller than the cold galvanized layer, and forms a wetting layer with the whole bottom aluminum, which has good deterioration resistance. 5. The surface of the cold-dip galvanized pipe is brighter, smoother and smoother. The appearance of the ordinary cold-drip galvanized pipe is not as fragile and bright as the cold-drip galvanized pipe. . We supply high quality galvanized steel coils. Good quality. Trustworthy product packaging. Contact us to learn more. sale@steelcoilsale.com

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