Some points that should be paid attention to during the use of galvanized mild steel sheet:
1. If water leakage occurs during storage and handling, it may cause rust. Please pay close attention to handling, moisture and condensation in rainy days. In addition, high humidity and acidic environment are not conducive to storage, so please keep it in a dry and clean room.
2. If an organic solvent is used to wipe the surface of the steel plate, the electro-galvanized coating on the surface may be lost or peeled off. Please pay attention to it.
3. If foreign matter such as oil stains is attached, it may affect the performance, please pay attention to it.
4. If the processing level is high, the zinc layer may be damaged, please confirm before use.
5. With the passage of time, the steel plate may have.
According to production and processing methods, it can be divided into the following categories:
1. Hot-dip galvanized steel sheet. The thin steel plate is immersed in the molten zinc bath, so that a thin steel plate with a layer of zinc adheres to the surface. At present, it is mainly produced by continuous galvanizing process, that is, continuous immersion of rolled steel sheets in a galvanized bath with molten zinc to make galvanized steel sheets;
2. Alloyed galvanized mild steel sheet. This kind of steel plate is also manufactured by hot dipping method, but after it is out of the tank, it is heated to about 500 ℃ immediately to form an alloy film of zinc and iron. This galvanized sheet has good coating adhesion and weldability;
3. Electro-galvanized steel sheet. The galvanized steel sheet produced by the electroplating method has good workability. However, the coating is thinner and the corrosion resistance is not as good as the hot-dip galvanized sheet;
4. Single-sided galvanized steel and double-sided differential galvanized steel. Single-sided galvanized steel sheet is a product that is galvanized on one side only. In welding, painting, anti-rust treatment, processing, etc., it has better adaptability than double-sided galvanized sheet. In order to overcome the shortcomings of uncoated zinc on one side, there is another galvanized sheet coated with a thin layer of zinc on the other side, that is, double-sided differential galvanized sheet;
5. Alloy and composite galvanized mild steel sheet. It is made of zinc and other metals such as aluminum, lead, zinc, etc. to make alloys or even composite plated steel plates. This kind of steel plate not only has excellent anti-rust performance, but also has good coating performance;
