Non destructive testing methods and executive standards for pressure vessels

Date：2023-03-23 13:50:47 Views：1092

Non destructive testing of pressure vessels refers to the use of physical principles and technical means to detect whether there are defects, cracks, corrosion, and other issues inside the vessel without damaging the vessel, in order to ensure the safe and reliable operation of the vessel. This article has collected and collated some materials, hoping to have greater reference value for readers.

Common non-destructive testing techniques include

Ultrasonic testing: Using the propagation characteristics of ultrasonic waves inside objects to detect defects and cracks inside containers, it is applicable to the detection of metal, non-metal, and composite containers.

X-ray detection: Use the characteristics of X-ray penetrating objects to detect defects, cracks, and thickness of the shell inside the container. It is applicable to the detection of metal containers.

Magnetic particle testing: Using the magnetization characteristics of magnetic materials in magnetic fields to detect cracks, defects, and corrosion on the surface and inside of containers, it is applicable to the testing of metal containers.

Liquid penetrant testing: Using the characteristics of liquid entering defects under surface tension to detect cracks and defects on the surface of containers, it is applicable to the detection of metal, non-metal, and composite containers.

Infrared thermal image detection: Use the characteristics of objects that absorb and radiate infrared radiation to detect the temperature distribution on the surface and inside of containers, to detect surface temperature anomalies or corrosion in local areas.

Main standards for nondestructive testing of pressure vessels

GB/T 2970-2016 Magnetic Particle Testing of Iron and Steel Products: This standard is applicable to the magnetic particle testing of pressure vessels.

GB/T 13298-2018 "Industrial Radiographic Testing": This standard is applicable to the radiographic testing of pressure vessels.

GB/T 7233-2018 "Technical Requirements for Liquid Penetrant Testing": This standard is applicable to liquid penetrant testing of pressure vessels.

GB/T 19802-2015 "Specification for Calibration of Instruments and Equipment for Non destructive Testing of Pressure Vessels": This standard specifies the calibration methods and standards for instruments and equipment for non destructive testing of pressure vessels.

JB/T 4730-2017 Standard for Inspection and Acceptance of Pressure Vessels: This standard specifies various requirements for inspection and acceptance of pressure vessels, including requirements and standards for non-destructive testing.

ASME BPVC Section V-2019 "Non destructive Examination": This standard is a non destructive testing standard formulated by the American Society of Mechanical Engineers and is applicable to various types of pressure vessels.

Through non-destructive testing technology, defects and problems within the container can be detected in a timely manner, avoiding safety accidents, and ensuring the safe and reliable operation of pressure vessels. At the same time, it is necessary to select appropriate non-destructive testing methods and instruments and equipment based on the actual situation to meet the testing requirements. When conducting non-destructive testing, it is necessary to operate in accordance with corresponding specifications and standards to ensure the accuracy and reliability of the testing results. Chuangxin Testing is a professional testing agency for electronic components. Currently, it mainly provides integrated circuit testing services such as capacitors, resistors, connectors, MCU, CPLD, FPGA, DSP, etc. Specializing in functional testing of electronic components, incoming appearance testing of electronic components, anatomical testing of electronic components, acetone testing, X-ray scanning testing of electronic components, and ROHS component analysis and testing. Welcome to call, we will wholeheartedly serve you!