Thermal power forging is an important component in thermal power generation equipment, its quality and performance directly affect the safety and efficiency of thermal power generation equipment. With the adjustment of energy structure and the growth of power demand, the manufacturing of thermal power forgings is facing higher requirements and challenges. In order to improve the production efficiency and quality of thermal power forgings and reduce the production cost, the new forming process has become an effective means. In this paper, the application scenario and practical effect of the new forming process in thermal power forging manufacturing will be discussed.
At present, the new forming process of thermal forging mainly includes precision forging, isothermal forging, powder forging and so on. These new forming processes have been widely used in the manufacture of thermal power forgings, with different advantages and disadvantages.
Precision forging
Precision forging is an advanced forming process, which has the advantage of being able to produce forgings with high precision, high strength and high surface quality. Precision forging adopts advanced mold design and manufacturing technology to achieve precise control and forming of materials. At the same time, precision forging can also reduce the processing allowance and improve the utilization rate of materials. However, the equipment investment of precision forging is large and the production cost is high.
Isothermal forging
Isothermal forging is a process that can be formed under constant temperature conditions, and its advantages are that it can reduce the stress concentration and deformation unevenness in the forming process, and improve the forming accuracy and quality of the forging. Isothermal forging requires the use of special heating equipment and mold, equipment investment is large. At the same time, the production efficiency of isothermal forging is low and the production cost is high.
Powder forging
Powder forging is a forming process using powder metallurgy technology, which has the advantage of being able to produce forgings with complex shapes and high performance. Powder forging can adopt different powder materials and forming technologies, which can achieve precise control and forming of materials. However, the production efficiency of powder forging is low and the production cost is high.
The key technologies of the new forming process mainly include forming principle, process parameters, quality control and so on. The following takes precision forging as an example to introduce its key technologies.
Forming principle
The forming principle of precision forging is to use the shape and size of the mold to control the flow and deformation of the material, so that the material is precisely formed in the mold. Precision forging adopts advanced mold design and manufacturing technology to achieve precise control and forming of materials. The design and manufacture of molds need to consider the nature of the material, the requirements of the forming process, and the shape and size of the product.
Process parameter
The process parameters of precision forging mainly include forming temperature, forming speed and pressure. These parameters have important influence on forming accuracy and quality of forging parts. In the process of precision forging, reasonable process parameters need to be determined according to the nature of the material and the requirements of the product. For example, when forming superalloys, a higher forming temperature and a slower forming speed are needed to ensure the full flow and deformation of the material.
Quality control
The quality control of precision forging mainly includes the quality control of raw materials, the precision control of the mold and the monitoring of the forming process. In the process of precision forging, the raw materials need to be strictly inspected and controlled to ensure that the quality and performance of raw materials meet the requirements. At the same time, it is necessary to control the accuracy of the mold to ensure that the shape and size of the mold meet the requirements of the product. In addition, it is also necessary to monitor the forming process to find and deal with potential problems in a timely manner.
Taking a thermal power enterprise as an example, this enterprise adopts precision forging technology in the manufacture of thermal power forgings. Through the introduction of advanced precision forging equipment and technology, the company has achieved high precision, high strength and high surface quality manufacturing of thermal power forgings. At the same time, because precision forging can reduce the processing allowance and improve the utilization rate of materials, the company also achieved a reduction in production costs. Compared with the traditional forging process, precision forging has better application prospect and development space.
In this paper, the research and practice of new forming technology in the manufacture of thermal power forgings are studied. Through the analysis and evaluation of the research status, key technologies and practical cases of the new forming process, it can be found that the new forming process has a wide range of application scenarios and practical effects. In the future, with the continuous development and innovation of science and technology, the new forming process will play an increasingly important role in the manufacturing of thermal power forgings, and provide strong support for the realization of efficient, high-quality and low-carbon thermal power forgings manufacturing. At the same time, it is also necessary to continue to study and improve the new forming process, improve its production efficiency and quality stability, further reduce costs and expand the scope of application.
