GB/T 41966-2022 in English

GB/T41966-2022: In-depth interpretation of phased array ultrasonic testing methods for seamless steel pipes

With the continuous improvement of the quality requirements of steel pipes in the industrial field, the application of non-destructive testing technology in steel pipe manufacturing is becoming more and more extensive. As an efficient and accurate non-destructive testing method, phased array ultrasonic testing technology plays an important role in the quality control of seamless steel pipes. Based on the GB/T41966-2022 "Phase-controlled Array Ultrasonic Testing Method for Seamless Steel Pipes" standard, this article will interpret the core content and application of this technology for you.

1. Background and significance of standard formulation

Background:Seamless steel pipes are widely used in the fields of petroleum, natural gas, electricity and chemical industry. Traditional single (double) crystal ultrasonic testing technology has problems such as low detection efficiency and incomplete sound beam coverage, which makes it difficult to meet the needs of modern industry for high-precision non-destructive testing. Phased array ultrasonic technology replaces mechanical scanning with electronic scanning, which significantly improves the sensitivity and consistency of detection.

Significance:The formulation of this standard fills the gap in the field of phased array ultrasonic testing of seamless steel pipes in China, promotes the progress of testing technology, and provides a strong guarantee for product quality.

II. Overview of Phased Array Ultrasonic Testing Technology

Core Principle:Phase-array ultrasonic technology uses the adjustability of ultrasonic waves to achieve the direction and focus of the sound beam under the control of electronic equipment. By changing the angle and depth of the sound beam, accurate detection of surface and internal defects of steel pipes can be achieved.

III. Comparative analysis of standard frameworks

Note:

The data in the table are based on GB/T41966-2022 standard. Please refer to the original text for detailed parameters.

IV. Implementation suggestions

Equipment selection:Select phased array ultrasonic testing instruments and probes that meet the requirements of the ISO18563 series to ensure that their performance indicators meet the standard requirements. It is recommended that the automatic detection system be comprehensively tested in accordance with YB/T4082.

Operator training:Strictly certify the qualifications of inspection personnel in accordance with GB/T9445 and ISO11484 standards to ensure the standardization of operations and the accuracy of results.

Data management: It is recommended to establish a complete test data management system to record and store the test information of each steel pipe in real time for a long time. Refer to the method in Appendix D to test and adjust the sound beam width to ensure the effectiveness of the test.