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Hot plating seamless tube
The heat - plated seamless pipe is a combination of the molten metal and the iron substrate reaction, which makes the substrate and the coating two. Hot dip galvanizing is first to pickling steel pipe, in order to remove iron oxide in the surface of steel, pickling, by ammonium chloride or zinc chloride aqueous solution or ammonium chloride and chloride zinc mixed aqueous solution groove cleaning is then fed into hot dip tank. Hot dip galvanized coating with uniform, strong adhesion, long service life, etc..
Cold plating seamless tube
Cold galvanizing is electric galvanized, galvanized amount is very little, only 10-50g/m2, the corrosion resistance of its own specific heat galvanized pipe is a lot of difference. Regular galvanized pipe manufacturers, in order to ensure the quality, most do not use electric galvanized (Leng Du). Only those small, old equipment used in small enterprises, of course, their prices are relatively cheaper. At present, the Ministry of construction has officially below, the elimination of backward technology of cold galvanized pipe, the future is not allowed to use cold galvanized pipe for water, gas pipe.
Hot dip galvanized seamless pipe: steel tube matrix and molten plating solution to complex physical and chemical reactions, the formation of corrosion resistant structure of the structure of close to the iron alloy layer. Alloy layer is integrated with the pure zinc layer and the steel tube. Therefore, its corrosion resistance.
Cold galvanized seamless pipe: the zinc layer is the plating layer, the zinc layer and the steel tube independent layer. The zinc layer is thin, and the zinc layer is attached to the steel tube, which is easy to fall off. Therefore, its corrosion resistance. In the new housing, the use of cold galvanized steel pipe as a water pipe. The mechanical properties of the galvanized seamless steel tubes is an important inde |
| Company: |
Heibei New Sinda Pipes Manufacture Co.,Ltd
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| Contact: |
Mr. wang geng |
| Address: |
Mengcun Hui Autonomous County North Industrial Zone |
| Postcode: |
062450 |
| Tel: |
86-0317-6899188 |
| Fax: |
86-317-6899899 |
| E-mail: |
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