Galvanized sheet is a thick steel plate with a layer of zinc on the surface. Hot dip galvanizing is a kind of economic development and reasonable antirust treatment. About half of the world's zinc production is used for this kind of processing technology.
So what is the classification of galvanized steel sheet? The manufacturer of galvanized steel sheet tells you.
According to manufacturing and processing methods, it can be divided into the following categories:
① Hot dip galvanized steel plate. The cold rolled steel sheet is infiltrated into the molten zinc bath
A cold rolled steel plate with a layer
of zinc adhered to its surface. At the present stage, the key is to use continuous hot-dip galvanizing process to manufacture, that is, to continuously immerse the plate of thick steel in the bath with molten zinc to make galvanized steel plate;
② Fine grain strengthening galvanized steel sheet. This kind of thick steel plate is produced by hot-dip method, but after it is discharged from the tank, it is heated to 500 ℃ immediately to convert it into aluminum alloy plastic film of zinc and iron.
This kind of galvanized sheet has excellent adhesion and weldability of architectural coatings;
③ Galvanized steel sheet. This kind of galvanized steel sheet produced by electroplating has excellent technological properties. However, the coating
is thin and its corrosion resistance is not as good as that of hot dip galvanized sheet;
④ Single and double side plating and double side difference galvanized steel sheet. Single and double-sided galvanized steel sheet, that is, only on one side
of the hot-dip galvanized goods. In welding, spraying, rust prevention, production and processing, it has stronger adaptability than galvanized sheet on both sides.
In order to get rid of the defect of uncoated zinc on both sides, there is another
kind of galvanized sheet coated with chromatographic zinc on the other side, that is, galvanized sheet with difference between two sides;
⑤ Aluminum alloy, composite galvanized steel sheet. It is made of zinc and other metal materials, such as aluminum,
lead, zinc and so on. It is made of aluminum alloy and even composite plated thick steel plate. This kind of thick steel plate not only has special anti rust treatment characteristics, but also has excellent spraying characteristics;
to the five, there are also colorful galvanized steel sheets, clothing printing spraying galvanized steel sheets, polyethylene laminated galvanized steel sheets, etc. But at this stage the most common is still hot-dip galvanized sheet. Key manufacturers
and importing countries:
① Key manufacturers in China: WISCO, Shougang, Angang Huangshi, MCC Hengtong, Shougang, Panzhihua Iron and Steel Co., Ltd., Handan Iron and Steel Co., Ltd., Maanshan Iron and Steel Co., Ltd., Fujian Kaijing, etc;
Japan, France, Ukraine, the Netherlands, Japan, etc. are the key manufacturing countries overseas.