Petrochemical ring flange forgings are key parts in the petrochemical industry, and their working environment is usually harsh, such as high temperature, high pressure, corrosion and so on. Therefore, improving the surface strength and wear resistance of petrochemicals ring flange forgings is of great significance for prolonging its service life and improving the operating efficiency of equipment. Surface strengthening technology is a technology to improve the hardness and wear resistance of the material surface by changing the physical and chemical properties of the material surface. This paper will discuss the surface strengthening technology of flange forgings of petrochemical ring.
The basic principle of surface strengthening technology is to improve the hardness and wear resistance of the material surface by changing the microstructure, chemical composition and physical properties of the material surface. In petrochemical ring flange forgings, the application of surface strengthening technology can significantly improve the wear resistance and corrosion resistance of parts, extend their service life, and reduce maintenance costs and downtime.
Application of surface strengthening technology in flange forgings of petrochemical ring parts
Laser surface strengthening technology: laser power density is high, heating speed is fast, cooling speed is fast, heat affected zone is small, workpiece deformation is small. The surface of the workpiece is scanned by the trajectory of the laser beam, and the surface of the workpiece is vaporized to achieve the purpose of cutting and forming. At the same time, the trajectory control of the laser beam is flexible and convenient, and various complex forming surfaces can be cut quickly and accurately. Laser surface strengthening technology can improve the surface hardness and wear resistance of petrochemicals ring flange forgings and extend their service life.
Shot peening surface strengthening technology: Shot peening is a process in which high-speed projectile is sprayed to the surface of the workpiece, and plastic deformation occurs on the surface of the workpiece and a hardened layer is formed through the impact force and friction force. The surface strengthening technology of shot peening can improve the fatigue resistance and corrosion resistance of petrochemicals ring flange forgings, and reduce the crack generation.
Heat treatment surface strengthening technology: Heat treatment is a technology that changes the internal structure of metal materials through the process of heating and cooling, so as to improve its mechanical and physical properties. In the petrochemical ring flange forgings, the surface strengthening technology of heat treatment can improve the hardness and wear resistance of the parts, and improve its corrosion resistance.
Implementation steps of surface strengthening technology
Select the right surface strengthening technology: according to the material, working conditions and requirements of the petrochemical ring flange forgings, select the right surface strengthening technology, such as laser surface strengthening technology, shot peening surface strengthening technology or heat treatment surface strengthening technology.
Formulate a detailed process plan: According to the selected surface strengthening technology, formulate a detailed process plan, including the determination of heating temperature, heating time, cooling method, shot peening particle size and speed.
Implement surface strengthening treatment: According to the process plan, the surface strengthening treatment of the petrochemical ring flange forgings is carried out to ensure the stability and reliability of the treatment process.
Quality testing and control: Quality testing and control of the treated petrochemical ring flange forgings, including the testing of hardness, wear resistance, corrosion resistance and other performance indicators, to ensure that the treatment effect meets the requirements.
In this paper, the surface strengthening technology of flange forgings of petrochemical ring is discussed. The surface hardness and wear resistance of petrochemicals ring flange forgings can be significantly improved and their service life can be extended by applying different surface strengthening technologies such as laser surface strengthening, shot peening surface strengthening and heat treatment surface strengthening. In the process of implementation, attention should be paid to the selection of appropriate surface strengthening technology, the formulation of detailed process plans, the implementation of surface strengthening treatment and quality inspection and control and other key steps. This is of great significance for improving the performance and service life of petrochemical ring flange forgings, and also helps to promote the sustainable development of the petrochemical industry.
