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Galvanized coil airtight performance is widely used

time2018/04/03

Galvanized coils are airtight and have a wide range of uses. Since the steel silo adopts special equipment for bending and bending, it can ensure the quality of any part of the silo body in the process, so its sealing is particularly good, and it can store cement, fly ash, slag ultrafine powder and other powders. Materials are widely used in the building materials industry. The overall strength, stability, and shock resistance are superior to other positions. In addition, according to the requirements of the storage materials against corrosion and grinding strength, the optimum material ratio of the plate is used to make the normal service life of the steel plate house for 15-20 years. Far more than the life of other warehouses.
The galvanized coil steel silo has a small footprint and is easy to manage. The galvanized coil steel silo differs from other steel silos in that height and diameter can be arbitrarily selected within a relatively large range. The minimum distance between the two bins is 500 mm, making full use of space and reducing the floor space. The high degree of automation of the spiral bite steel silo, together with the temperature measurement, material level and other equipment, is very convenient for the user to manage. High strength: The continuous spiral undercut of the steel silo is five times the thickness of the base metal, which greatly enhances the load-bearing capacity of the steel silo.
It can effectively protect the sheet from incisions and micro-cracks caused by cold working and the near-weld zinc burn-out area, preventing rust from starting from here. Zinc has a melting point of about 420°C and a volatilization temperature of 908°C, which is not good for welding, and it volatilizes when the arc ignites. The volatilization and oxidation of zinc can lead to pores, unmelted and cracked, and even affect arc stability. Therefore, the best way to weld galvanized sheet is to reduce heat input.
When welding the first layer of the multilayer weld, the zinc layer is melted as much as possible to vaporize and evaporate to escape the weld, which can greatly reduce the liquid zinc remaining in the weld. In the welding of fillet welds, the zinc layer is also melted in the first layer as much as possible to vaporize and evaporate to escape the weld. The method is to first remove the end of the electrode by about 5-7 mm, when the zinc layer is made. After melting, return to the original position and continue welding forward. In horizontal and vertical welding, if short slag welding rods such as J427 are used, the tendency of undercut will be very small; if the forward and backward traverse bar technique is adopted, the welding quality without defects can be obtained.