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The classification of galvanization
Zinc-plated steel tube, hot points of cold plating coating tube, the former, the latter has been banned by the state advocates are temporarily use.
Galvanized pipes
Is that a molten metal and alloy iron and matrix reaction, which combines matrix and coating them. Galvanized steel is first to remove pickling, steel surface, pickling, ferric chloride zinc or by mixing and zinc chloride solution or cleaning solution, then grooves into hot hot-dip slot. Galvanized coating with excellent adhesion, good uniformity, long service life, etc.
Cold galvanization
Galvanization cold galvanizing is electro-galvanizing, galvanized is very little, only 10-50g/m2, its itself corrosion resistance than galvanized pipes are many. Regular galvanization manufacturer, to ensure the quality, mostly using electricity galvanized coating (cold). Only those small in scale, the small old equipment using electricity galvanized, of course, their price is cheaper. Currently, the ministry has officially eliminate backward in technology of below, cold galvanization, the future not use cold water, galvanization for gas pipe.
Galvanized steel
The molten steel substrate and solution of the complex physical and chemical reactions of corrosion, forming a structure of zinc alloy layer. Zinc alloy and pure, steel substrate. The corrosion resistant capability.
Cold galvanization steel tube
Zinc plating, zinc are electrical steel substrate layer and independent. Zinc is thinner, zinc steel substrate attached to the simple and easy to fall off. The corrosion resistance. In the new residence, banning the use of cold galvanization as pipes.
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Mr. Jianhua Zhu
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Tianjin HaoXinTong high alloy pipes trade Co., LTD
China (Mainland)
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