Name: Anshan Iron and steel machinery development private enterprise machinery plant
Contact: Shen Taisheng
Mobile phone: 13942222400
Zip code: 114000
Site: Anshan Iron and steel plant
Office address: Xi min, Tiexi District, Anshan, Liaoning
No. 111 Sheng Lu
When choosing the material of zinc pot, the first thing is to see its ability to resist the corrosion of zinc liquid, and its strength, oxidation resistance and other performance requirements are relatively minor. Carbon and silicon are seldom found in industrial pure iron. The corrosion rate of liquid zinc to pure iron is very small. Pure iron is often used abroad to make zinc pots and other equipment parts immersed in zinc bath.
Impurities and alloy elements will increase the corrosion of steel in zinc bath. The corrosion mechanism of steel in zinc bath is completely different from the corrosion mechanism of steel in atmosphere or water. Some steels with good corrosion resistance and oxidation resistance, such as stainless steel and heat-resistant steel, have lower corrosion resistance to zinc than those with high purity of low carbon and low silicon steel, so they are often used to make zinc pots with high purity of low carbon and low silicon steel. A small amount of carbon and manganese () is added to the steel, which has little effect on the corrosion resistance of the steel in zinc solution, but can improve the strength of the steel. The chemical composition of the steel products (the highest content of carbon, silicon, manganese, phosphorus and sulfur) provided by W. PILLING, a famous zinc pot manufacturer, is as follows: This component of steel has been recognized as special steel for zinc pot. In the past, 08F and 05F steels were often used to make zinc pots in China. Although these steels were also low carbon and low silicon steels, they were not ideal materials for zinc pots because they were boiling steels with more oxide inclusions and poor microstructure compactness. In recent years, some special steel for zinc pot has been developed by domestic iron and steel enterprises, and good results have been achieved in practical application.
In addition to the chemical composition requirements of steel, it should also be emphasized that the composition segregation of steel plate and local macroscopic defects (porosity, slag inclusion, folding, porosity, etc.) may cause great harm to the zinc pot. Therefore, strict inspection is necessary for the quality of zinc plate and zinc pot.