Aluminized zinc roll

Hot galvanized steel, that is Galvalume (GL steel), is a kind of surface heat plate of aluminum (Al 55%), zinc (Zn43.5%), silicon (Si1.5%) alloy steel. It is a steel based composite material, which has excellent corrosion resistance. Hot dip aluminium zinc alloy steel plate not only has the atmospheric corrosion resistance and oxidation resistance of aluminized steel plate excellent, but also has the protective galvanized steel sheet excellent electrochemical. Its main advantages are as follows: ① The surface is smooth, with excellent corrosion resistance, the corrosion life is 2-6 times higher than that of heat galvanized steel sheet. ② The heat resistant and good oxidation resistance, and can constant color for a long time at 300 ℃, at 500 ℃ ~ 600 ℃ can be used for a long time. It has good resistance, corrosion ability, in addition, heat reflectivity of product is higher than 75%, suitable for the manufacture of low temperature furnace lining layer, reduce the furnace wall heat transfer. ③ With excellent coating properties and good processing performance. The adhesion to organic material is strong and is a good substrate color organic coated steel sheet. The processing and welding is similary to hot galvanized plate, which can be cold bending, stamping processing, and has good appearance. ④ In addition, as the density of metal aluminum is smaller than zinc, aluminum zinc alloy coated accounted for 3.7kg/dm3 and is a popular processing technology currently.