Shenzhen Shengjinlong Iron and Steel Co., Ltd.

company's product
Home > news > Content

Can galvanized pipes be used on different industrial pipes?

The hot-dip galvanized tube is obtained by reacting a molten metal with an iron matrix to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle the steel pipe first, in order to remove the iron oxide on the surface of the steel pipe, after pickling, it is washed by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then fed. Hot dip plating tank. Hot-dip galvanizing has the advantages of uniform plating, strong adhesion and long service life. The hot-dip galvanized steel pipe matrix and the molten plating solution undergo complex physical and chemical reactions to form a corrosion-resistant structure of a zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe base, so it has strong corrosion resistance.

When the galvanized pipe repairs defects such as sand holes, pores, and abrasion of the mold, a correction device having a small heat influence such as a cold welder is selected to avoid the occurrence of deformation during the repair process. Precision messy molds are pre-heat treated to eliminate the residual stresses that occur during machining. For precision messy molds, where conditions permit.
The galvanized pipe should be vacuum-refined and quenched after quenching. Under the premise of ensuring the hardness of the mold, try to use pre-cooling, staged cooling quenching or warm quenching process. Reasonable selection of materials. For the fine messy mold, the micro-deformed mold steel with good quality should be selected, and the mold steel with severe carbide segregation should be reasonably cast and heat-treated.
The galvanized pipe can be subjected to solid solution double refining heat treatment for large and unworkable die steel. Reasonable selection of heating temperature, control of heating speed, slow cooling, preheating and other balanced heating methods can be used to reduce mold heat treatment deformation.
The twists and turns of the galvanized pipe mill are due to improper adjustment of the mill, residual residual stress during rolling and due to unequal cooling along the cross section and length of the pipe. Therefore, it is not possible to obtain a straight pipe directly from the rolling mill, as long as the rule of the skill condition is satisfied by the tortuosity of the cold straightening pipe.
The galvanized pipe is to make the plastic-coated steel pipe elastic-plastic and tortuous, and the large tortuosity becomes a small tortuosity, so that the steel pipe needs to be repeatedly twisted and twisted in the straightening machine. And the degree of repeated twists and turns of the steel pipe. The degree of repeated twists and turns of the steel pipe is mainly determined by the adjustment of the straightening machine.

  Galvanized pipes are widely used, in addition to pipelines for general low-pressure fluids such as water, gas, oil, etc., and also used as oil well pipes and oil pipes in the petroleum industry, especially in offshore oil fields, and oil heaters and condensation of chemical coking equipment. Cooler, coal distillate oil exchanger pipe, and trestle pipe pile, support pipe for mine tunnel, etc.

What is shared above is that galvanized pipes can be used on different industrial pipes? For sharing, a large warehouse-operated trading company specializing in the sale of steel products has a large yard with a large number of stocks and complete specifications. The company's main business: hot-dip galvanized rectangular tube, angle groove, round flat steel, galvanized embedded parts, galvanized pipe and Pu steel angle iron, channel steel, I-beam, steel pipe, square tube and so on Steel products. If you need it, please contact us directly.