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. In the production process, the real-time and accurate detection of thermal power forgings is an important means to ensure product quality. With the continuous development of science and technology, on-line testing technology has been widely used, which provides strong technical support for the production of thermal power forgings. This paper discusses its application scenario and value in the production of thermal power forgings from the point of view of on-line testing technology.
The production process of thermal power forgings mainly includes raw material preparation, forging, heat treatment, machining and other links. In the production process, it is necessary to strictly control all aspects to ensure that the quality and performance of the final product meet the requirements.
The application of online testing technology in the production of thermal power forgings is mainly reflected in the following aspects:
Raw material testing: chemical composition, organizational structure and other aspects of raw materials are tested through online testing technology to ensure that the quality of raw materials meets the requirements.
Forging process monitoring: real-time monitoring of temperature, pressure, deformation and other parameters in the forging process through online detection technology to ensure the stability of the forging process and product quality.
Heat treatment process monitoring: real-time monitoring of temperature, time and other parameters in the heat treatment process through online detection technology to ensure the stability of the heat treatment process and product quality.
Product testing: Through online testing technology to detect the size, shape, surface quality and other aspects of the product to ensure that the quality of the final product meets the requirements.
On-line detection technology refers to the technology of real-time detection of product quality, performance and other parameters in the production process. Common online detection techniques include the following:
Ultrasonic detection: Using the propagation characteristics of ultrasonic waves in the object to detect the internal defects of the object. It has the advantages of fast detection speed and no damage, but it is limited by material and defect type.
X-ray detection: The attenuation characteristic of the ray after penetrating the object is used to detect the internal defects of the object. It has high detection accuracy, but due to the influence of radiation, the operation needs to be strictly regulated.
Magnetic particle detection: The magnetic field is used to gather magnetic particles at the surface defects of the object, so as to show the defects. It has the advantages of fast detection speed and high sensitivity, but it is only suitable for ferromagnetic materials.
Thermal imaging detection: The use of infrared thermal imager to detect the temperature distribution of the surface of the object, so as to judge the internal defects or anomalies of the object. It has the advantages of non-contact and non-damage, but is affected by the ambient temperature and the surface emissivity of the object.
In the production of thermal power forgings, the commonly used on-line inspection technology is ultrasonic inspection and X-ray inspection. These two technologies can realize the real-time detection of internal defects of products, find and deal with potential problems in a timely manner, thereby improving product quality and safety performance.
Taking a steam turbine rotor of a thermal power plant as an example, cracks appear in the rotor during operation, which seriously affects the safety and efficiency of the equipment. In order to solve this problem, the factory introduced on-line detection technology to monitor the rotor in real time.
The on-line detection technology adopts two methods, ultrasonic and ray, to detect the rotor comprehensively. In the ultrasonic inspection, technicians used a portable ultrasonic flaw detector to scan the surface and interior of the rotor and found the specific location and depth of the crack. In the X-ray inspection, the technician used an X-ray machine to see through the rotor and further confirm the crack.
Through the analysis and processing of the test results, the factory took timely repair measures to avoid the further expansion of the rotor crack and ensure the safety and efficiency of the equipment. At the same time, the factory also applied the on-line inspection technology to the inspection of other key components, improving the quality and efficiency of the overall production line.
This paper introduces the on-line testing technology and its application in the production of thermal power forgings. Through the introduction of online detection technology, real-time monitoring of product quality and timely detection of potential problems can be achieved, thereby improving product quality and safety performance. In practical applications, enterprises should choose the appropriate online testing technology according to their actual situation, and combine the traditional testing methods for comprehensive application to ensure that product quality meets the requirements. With the continuous development of science and technology, online testing technology will play an increasingly important role in the production of thermal power forgings, providing strong support for enterprises to improve production efficiency and quality.
