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Specific introduction of forgings for pressure vessels in the industry

Release time:

2022-04-08

Specific introduction of forgings for pressure vessels in the industry

Forgings for pressure vessels refer to sealing equipment that contains gas or liquid and is subjected to a certain pressure. In order to carry out scientific management and safety supervision and management more effectively, containers are divided into three categories according to working pressure, medium hazard and their role in production.

In the design and manufacturing process, there are different regulations for various types of pressure vessels and inspection items, contents and methods. The safety and quality licensing system shall be implemented for imported goods in containers, and commodities that have not obtained the import safety and quality license shall not be imported. According to the "Stationary Pressure Vessel Safety Technical Supervision Specification", it should be divided into the first group of media and the second group of media, and then divided into the so-called first, second and third categories according to pressure and volume, which are no longer applicable. The so-called old capacity measuring instruments of the first, second and third categories.

Forgings for pressure vessels are closed vessels that can withstand pressure. It is widely used and plays an important role in industry, civil affairs, military industry, scientific research and other departments. Among them, the containers in the chemical and petrochemical industries are widely used, and the containers used in the petrochemical industry alone account for about 50% of the total number of pressure vessels. Containers are mainly used in chemical and petrochemical industries, such as heat transfer, mass transfer, reaction and other processes, as well as storage and transportation of pressurized gas or liquefied gas. They are also widely used in other industrial and civil fields, such as air compressors. Special compressors and refrigeration compressors (coolers, buffers, oil-water separators, gas tanks, evaporative condensers, liquid coolers, etc.). This is a pressure vessel. Forgings for pressure vessels

1. The manufacturing process of pressure vessel parts can be divided into: acceptance process of raw materials, marking process, cutting process, rust removal process, and processing (including planing, etc.). ) process, rolling process, assembly process, welding process (product welding test plate), non-destructive testing process, hole marking process, general inspection process, heat treatment process, pressure test process and anti-corrosion process. Forgings for pressure vessels

2. Different welding methods have different welding processes. The welding process is mainly determined according to the material, grade, chemical composition, structure type and welding performance requirements of the welding workpiece. First of all, the welding method must be determined, such as manual arc welding, submerged arc welding, argon tungsten arc welding, gas metal arc welding, etc. There are many welding methods, which can only be selected according to the specific situation. After the welding method is determined, the welding process parameters are determined, and different welding process parameters are analyzed. For example, the manual arc welding pressure vessel mainly includes: electrode type, diameter, current, voltage, welding power source type, electrode connection method, welding layer number, channel number, detection method, etc.