Petrochemical forging is an important part of petrochemical industry, and its performance has a key impact on the safe operation of equipment. Forging temperature is one of the important parameters in the manufacturing process of petrochemical forgings, which has a significant influence on the performance of forgings. In this paper, the influence of forging temperature on the properties of petrochemical forgings is discussed in order to provide theoretical support and practical guidance for manufacturing high quality forgings.
Effect of forging temperature on the properties of petrochemical forgings
Mechanical properties: Forging temperature is one of the key factors affecting the mechanical properties of forgings. High forging temperature will lead to grain growth and reduce the strength and toughness of the material. However, too low forging temperature will lead to reduced plasticity of the material and increase the difficulty of forging. Therefore, choosing the right forging temperature is the key to obtain good mechanical properties.
Microstructure: Forging temperature has an important effect on the microstructure of forgings. The dynamic recrystallization process of the material is fully carried out by forging at high temperature, which is conducive to refining the grain and improving the mechanical properties of the material. However, the recrystallization process of the material is limited at low temperature, and it is easy to form coarse grains, which is not conducive to the improvement of material properties.
Residual stress: Forging temperature also has a certain impact on the residual stress of the forging. When forging at high temperature, the plastic deformation ability of the material is enhanced, which is conducive to reducing the residual stress. When forging at lower temperature, the plastic deformation ability of the material is weakened, and the residual stress is easy to produce, which affects the service performance of the forging.
Corrosion resistance: Petrochemical forgings usually need to work in a corrosive environment, so its corrosion resistance is also an important performance indicator. Forging temperature will affect the corrosion resistance of forging parts, too high forging temperature may lead to serious oxidation of material surface, reduce corrosion resistance; Too low forging temperature may lead to uneven internal organization of the material, which will also reduce corrosion resistance.
Measures to control forging temperature to improve the performance of petrochemical forgings
Develop a reasonable forging temperature range: for different materials and different forging shapes, develop a reasonable forging temperature range is the key. The optimum forging temperature range is determined by considering the chemical composition, mechanical properties and forging process of the material.
Advanced heating technology: The use of advanced heating technology, such as induction heating, laser heating, etc., to achieve rapid and uniform heating of the forging, to ensure that the forging is carried out in the appropriate forging temperature range.
Optimization of forging process: Optimization of forging process parameters, such as pressure, speed, holding time, etc., to ensure good plastic deformation and material microstructure refinement in the right forging temperature range.
Strengthen quality inspection and control: By strengthening quality inspection and control, timely discovery and treatment of possible problems in the forging process, such as too high temperature, too low, material oxidation, etc., to ensure that the quality of forging meets the requirements.
The forging temperature of petrochemical forgings has significant influence on its performance. Selecting suitable forging temperature range, adopting advanced heating technology, optimizing forging process and strengthening quality inspection and control are the key measures to improve the performance of petrochemical forging. With the continuous progress of science and technology and the improvement of green environmental protection requirements, we need to continue to study the mechanism of the impact of forging temperature on the performance of petrochemical forgings, explore more efficient and environmentally friendly manufacturing technologies and methods, and provide a more reliable guarantee for the development of the petrochemical industry.
