1, pressure vessel manufacturing process generally can be divided into: raw material acceptance process, line process, the cutting process, cleaning process, machining (including edge planing, etc.) work procedure, groups, and rolled to work procedure (product welding test plate), welding, NDT process, opening line process, the general inspection procedure and heat treatment process, pressure test process and corrosion process.
2. Different welding methods have different welding processes. The welding process is determined according to the material, brand, chemical composition, welding structure type and welding performance requirement of the welder. First of all, the welding method should be determined, such as arc welding, submerged arc welding, tungsten electrode argon arc welding, melting electrode gas protection welding, etc. There are many kinds of welding methods, which can only be selected according to the specific situation. Determine the welding method, and then make welding process parameters, different kinds of welding process parameters, such as manual welding mainly includes: electrode model (or brand), the diameter, the type of current, voltage, welding power source, polarity connection, welding layer number, number, inspection methods and so on.