Manufacturing Process of Pressure Vessels

A pressure vessel is a closed device that contains gas or liquid and carries a certain pressure. Let's talk about the manufacturing process of pressure vessels.

1. The pressure vessel manufacturing process can generally be divided into: raw material acceptance process, scribing process, cutting process, rust removal process, machining (including planing, etc.) process, rolling process, assembly process, welding process (product welding test process) board), non-destructive testing process, hole scribing 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 of the workpiece to be welded, the structure type of the weldment, and the welding performance requirements. First of all, it is necessary to determine the welding method, such as hand arc welding, submerged arc welding, tungsten argon arc welding, gas metal arc 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, manual arc welding mainly includes: electrode type (or grade), diameter, current, voltage, type of welding power source, polarity connection method, welding The number of layers, the number of lanes, the inspection method, etc.