Sealing steel sheet welding is a technique that involves fusing two or more steel sheets together through heating. Sealed steel sheet welding has advantages such as high strength, high corrosion resistance, and high sealing performance, and is widely used in fields such as aerospace, automotive, railway, and construction.
The principle of sealing steel sheet welding is to fuse two or more steel sheets together through heating and pressure. According to different heating methods, the welding of sealed steel sheet can be divided into beam welding, arc welding, laser welding and other methods.
Beam welding is the use of a focused beam of light to melt the surface of a workpiece, and to fuse two or more steel sheets together through heating and pressure. Beam welding has the advantages of fast welding speed, high welding quality, and small heat affected zone, but the equipment price is high and the operational technical requirements are high.
Arc welding is to heat the surface of steel sheet by using the electric current formed between two steel sheets to melt it, and to fuse two or more steel sheets together by heating and pressure. Arc welding has the advantages of fast welding speed and high welding efficiency, but it has the disadvantages of high requirements for equipment, large heat affected zone, and need to treat oxide layer.
Laser welding is to use high-energy laser to melt the surface of the workpiece, and to fuse two or more steel sheets together through heating and pressure. Laser welding has the advantages of fast welding speed, high welding efficiency and high welding quality, but it has the disadvantages of high equipment price and high requirements for beam accuracy.
The process flow of sealing steel sheet welding includes preparation work, cleaning, placement, heating, pressure control, cooling, and other steps. In the preparation work, it is necessary to cut and polish the steel plate to be welded. In the cleaning step, it is necessary to use a cleaning agent to clean the surface of the steel plate to ensure welding quality. In the placement step, the steel plate needs to be placed at a certain angle on the locator to ensure the correct position of the final welding. In the heating step, suitable welding methods need to be used for heating. During the heating process, it is necessary to pay attention to the temperature and time of heating to ensure welding quality. After heating, pressure control is required to ensure good fusion between steel plates. Then, the welded steel plate needs to be cooled.
In summary, sealed steel sheet welding technology has many advantages and can be applied in fields such as aerospace, automotive, railway, construction, etc., which helps to improve the service life and reliability of products. At the same time, sealing steel sheet welding technology also requires more scientific research and practical experience to continuously improve its welding quality and production efficiency.