Common welding methods of central air conditioning

The welding methods of central air conditioning mainly include the following:

1. Flame welding: Flame welding is a traditional welding method. Oxygen and acetylene cylinders are usually used. By mixing two gases and igniting them to generate flame, solder and workpiece are welded together by high temperature melting. However, during the welding process, it will cause a high temperature gradient, which will cause large thermal deformation and stress at the welded joint, and it is easy to produce cracks.

2. Welder welding: Welder welding is a welding method that uses current to generate heat to fuse solder and workpiece. This welding method will not cause great force and stress, and can obtain better welding effect and quality.

3.TIG welding: TIG welding, namely argon arc welding, is a welding method with high voltage and gas protection. Under the protection of argon, there will be no oxidation and pollution in the welding process, so that a very clean welded joint can be obtained.

4. Laser welding: Laser welding is a welding method with high precision, high efficiency and high quality. It uses the heat of laser beam to fuse solder and workpiece together, which can complete a lot of welding tasks quickly without great deformation or stress.

The above four methods can all be used for the welding of central air conditioning, and the specific choice of which method depends on the requirements of welding materials, heat and gas protection and welding quality.