1, melting electrode gas shielded welding (GMAW): this is a commonly used API 5L GRB pipeline pipe welding method, the use of gas to protect the weld, so that the weld metal is not oxidized at high temperatures, and at the same time effectively reduce the spattering of the welding process.
2, tungsten inert gas shielded welding (TIG): this method uses tungsten electrodes and inert gas to protect the API 5L GRB seamless carbon steel pipe weld, suitable for welding thinner API 5L carbon steel plate.
3, laser welding: laser welding is a high-energy beam welding method, through the high energy density of the laser beam irradiation to the API 5L GRB seamless carbon steel pipe surface, so that the material melts and form a weld. This method has the advantages of fast welding speed and high seam quality.
4, plasma arc welding: plasma arc welding is a highly efficient welding method, the use of plasma arc of high temperature and high pressure characteristics, can be API 5L GRB oil and gas pipeline welding.
