Petrochemical forgings are the key equipment in the petrochemical industry, and the stability of their quality and performance is very important for the safe operation of the production line. However, due to various factors in the manufacturing process and environmental factors in long-term operation, petrochemical forgings may have various defects and damage, such as cracks, pores, inclusions, etc. In order to find and deal with these problems in time, ultrasonic detection and evaluation technology is widely used in the quality control and condition monitoring of petrochemical forgings.
Ultrasonic testing is a non-destructive testing method that uses the characteristics of ultrasonic waves propagating in materials to detect defects inside and on the surface of materials. In the ultrasonic detection of petrochemical forgings, the commonly used ultrasonic frequency is 0.5-20MHz. When ultrasonic encounters defects in the material, such as cracks, pores, etc., reflection, scattering and attenuation will occur, and the location, size and type of defects can be determined by receiving and analyzing the reflected ultrasonic waves.
Application of ultrasonic testing technology
Defect detection: Through comprehensive scanning of petrochemical forgings, various defects such as cracks, pores, inclusions, etc. inside and on the surface of forgings can be detected. Through quantitative and qualitative analysis of defects, the quality and performance of forgings can be assessed.
Thickness measurement: Using the speed and time relationship of ultrasonic wave propagation in the material, the thickness of the petrochemical forgings can be measured to ensure that it meets the design requirements.
Material performance evaluation: Through the analysis of ultrasonic propagation speed, attenuation and other characteristics in petrochemical forgings, the mechanical properties and microstructure of materials can be evaluated, providing a basis for material selection and process optimization.
Condition monitoring: Through regular ultrasonic testing of petrochemical forgings, its operating status and performance changes can be monitored, and potential safety hazards can be discovered and dealt with in time.
Ultrasonic testing and evaluation technology is a method and technology for qualitative and quantitative analysis of ultrasonic testing results. Common ultrasonic evaluation techniques include:
Quantitative evaluation of defects: By processing and analyzing the reflected ultrasonic signal, information such as the size, depth and location of the defect can be obtained to achieve quantitative evaluation of the defect.
Image processing technology: by converting ultrasonic signals into images, the defects and damage inside petrochemical forgings can be displayed more intuitively, which is easy to analyze and judge.
Ai-assisted diagnosis: The use of artificial intelligence technology to process and analyze ultrasonic detection data can realize automatic detection and diagnosis, and improve detection efficiency and accuracy.
Database management system: By establishing a database management system for ultrasonic inspection of petrochemical forgings, the storage, query and analysis of inspection data can be realized, and data support can be provided for quality control and condition monitoring.
Ultrasonic inspection and evaluation technology for petrochemical forgings has the following advantages:
Non-destructive testing: Ultrasonic testing is a non-destructive testing method that will not cause damage to petrochemical forgings and ensure their integrity and service life.
High sensitivity: Ultrasound has a high sensitivity to tiny defects in materials, and can find and deal with some defects that are difficult to detect by traditional methods.
Real-time: Ultrasonic detection and evaluation technology can achieve real-time monitoring and diagnosis, timely detection and treatment of potential safety hazards.
Repeatability: Ultrasonic testing and evaluation technology has good repeatability, and can be tested and evaluated multiple times on the same petrochemical forgings to ensure the stability of its quality and performance.
However, the ultrasonic inspection and evaluation technology of petrochemical forgings also faces some challenges and problems:
Technical difficulty: Ultrasonic testing and evaluation technology requires high professional knowledge and skills, and requires high quality and experience of operators.
Equipment cost: The high price of high-quality ultrasonic testing equipment increases the cost of testing.
Complex structure impact: For petrochemical forgings with complex structure, the propagation path of ultrasonic wave may be disturbed and affected, increasing the difficulty and uncertainty of detection.
Standard specification: The current standard specification for ultrasonic testing and evaluation technology of petrochemical forgings is not perfect enough and the specification needs to further improve the relevant standards and specification system.
Ultrasonic inspection and evaluation technology of petrochemical forgings is an important means of quality control and condition monitoring, which is of great significance to ensure the safe and stable operation of petrochemical production. By continuously improving the accuracy and reliability of ultrasonic testing and evaluation technology, improving the relevant standards and specifications system to promote its wide application in the petrochemical industry will provide a strong guarantee for the safe production and sustainable development of the petrochemical industry.
