Manufacturing process of pressure vessel
1. The pressure vessel manufacturing process can be generally divided into: raw material acceptance process, scribing process, cutting process, rust removal process, machining (including planing, etc.) process, rolling process, pairing process, welding process (product welding test Plate), non-destructive testing process, hole marking process, general inspection process, heat treatment process, pressure test process, anti-corrosion process.
2, different welding methods have different welding processes. The welding process is mainly determined according to the material, grade, chemical composition, welding structure type, and welding performance requirements of the workpiece to be welded. First of all, we must determine the welding methods, such as hand arc welding, submerged arc welding, tungsten argon arc welding, melting electrode gas shielded welding, etc. There are many types of welding methods, which can only be selected according to specific conditions. After the welding method is determined, the welding process parameters are formulated. The types of welding process parameters are different. For example, hand arc welding mainly includes: electrode type (or brand), diameter, current, voltage, type of welding power source, polarity connection, welding. Number of layers, number of tracks, inspection methods, etc.
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