The compression ring welding of the air compressor cylinder is one of the key processes in the manufacture of air compressors, and plays a vital role in the overall performance and reliability of the air compressor.

The process first involves the preparation of the air compressor cylinder and the compression ring. As the main component that bears pressure and gas, the air compressor cylinder is usually made of high-quality metal materials, and its dimensional accuracy and roundness requirements are extremely high to ensure that it can evenly bear pressure and maintain stable operation during operation. The press-in ring needs to be processed according to the size of the cylinder, and the selection of its material should take into account the compatibility with the cylinder and the performance during welding. Before welding, the welding parts of the cylinder and the press-in ring are carefully cleaned and polished to remove oil, rust and other impurities on the surface to provide good surface conditions for welding to ensure welding quality.

The press-in link is a key step, and special tooling equipment is required to accurately press the press-in ring into the designated position of the cylinder to ensure that the matching accuracy between the two meets the design requirements. This process must strictly control the press-in force and press-in depth to avoid over-pressure or under-pressing, which will affect the subsequent welding quality and the overall structural performance of the cylinder.

The welding process uses advanced welding techniques, such as gas shielded welding or submerged arc welding. These welding methods can provide a stable arc and good weld formation, while effectively protecting the weld from the influence of impurities in the air, improving the stability and reliability of welding quality. When welding, it is necessary to control welding parameters, including welding current, voltage, welding speed and gas flow, to ensure that the weld depth, weld width and welding strength meet the standard requirements. During the welding process, the welder needs to pay close attention to the formation of the weld and adjust the welding parameters in time to prevent welding defects such as pores, cracks and lack of fusion.

After completing the welding, it is essential to conduct a comprehensive quality inspection of the weld. Through non-destructive testing methods such as ultrasonic testing and radiographic testing, the inside of the weld is inspected to check whether there are internal defects. At the same time, an appearance inspection is carried out to check the surface flatness, width uniformity, and whether there are defects such as undercuts on the weld. Only products that have passed strict testing can enter the subsequent assembly and commissioning links, providing a solid guarantee for the reliable operation of the air compressor. Every link of the compression welding process of the air compressor cylinder requires rigorous operation and strict control to ensure the high-quality manufacturing of the air compressor.