Hot dip galvanizing and rack galvanizing shall be the same. Related basic knowledge: among various conventional coating methods for steel repair, galvanized steel pipe galvanized square pipe and rectangular pipe square pipe and rectangular pipe manufacturer galvanized steel pipe factory galvanized square pipe and rectangular pipe manufacturer Tianjin Iron and Steel Huawei Hot dip Galvanizing Co., Ltd. is a good manufacturer. In the case of liquid zinc, Q345B galvanized square tube and rectangular tube are basically placed in the heat of this type of square steel tube after medium disorder physics, corrosion resistance and oxidation. The utility model relates to a square steel pipe, which is made after a series of strong organic chemical reactions in a galvanized tank. The production process of hot-dip galvanized square tube and rectangular tube manufacturers is relatively simple, and they also convert them into zinc nonferrous metal layers.

This electroplating method not only has the anti-corrosion characteristics of phosphating treatment, but also has a zinc nonferrous metal layer. It also has strong corrosion resistance, which cannot be compared with phosphating treatment. Therefore, this electroplating method is very suitable for all kinds of strong alkali, alkali fog water and other strong corrosive natural environments.

Basic principle: hot-dip galvanized layer consists of three whole processes of zinc in high-temperature liquid: iron base surface is melted by zinc liquid to form zinc nonferrous metal phase layer; 2. The zinc ion is further dispersed in the aluminum alloy layer to form a zinc iron compatible layer; The surface of the aluminum alloy layer is surrounded by a zinc layer. Manufacturers of galvanized square tube and rectangular tube can be divided into hot-dip galvanized square tube and rectangular tube manufacturers and cold galvanized square tube and rectangular tube manufacturers in terms of production technology. This is also because of the difference between the two manufacturers of galvanized square tubes and rectangular tubes, which have many different physical and physical properties. In short, they often have many differences in compressive strength, ductility and physical properties.

Galvanized square and rectangular steel pipe manufacturer: it is a square steel pipe rolled and welded with thick steel plate or steel chain. The square steel pipe is made after a series of strong organic chemical reactions. The production process of hot-dip galvanized square tube and rectangular tube manufacturers is relatively simple and the productivity is very high. Manufacturer's manufacturing. However, in terms of compressive strength, the compressive strength of this seamless steel pipe is far lower than Seamless square tube 。