Construction steel structure weld ultrasonic phased array detection technology

An ultrasonic phased array and structural weld technology, which is applied in the analysis of solids using sonic/ultrasonic/infrasonic waves, can solve problems such as no application, and achieve the goal of reducing safety accidents, improving work efficiency and quality, and enriching non-destructive testing methods. Effect

Active Publication Date: 2015-12-23
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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Problems solved by technology

At present, phased array ultrasonic testing technology has been applied in structures such as oil pipelines and offshore platforms, but has not yet been applied in the testing of building steel structures.

Method used

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  • Construction steel structure weld ultrasonic phased array detection technology
  • Construction steel structure weld ultrasonic phased array detection technology
  • Construction steel structure weld ultrasonic phased array detection technology

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Embodiment Construction

[0041] See Figure 1 ~ Figure 5 Shown: An ultrasonic phased array inspection process for welds in building steel structures. The process uses ultrasonic phased array detector 1 and ultrasonic phased array probe 2 to detect welding defects 7 in welds 6 of welded parts; The CSK-ID standard test block is used to calibrate the ultrasonic phased array detector, the RB-1A comparison test block is used to calibrate the detection sensitivity, and the RB-1B comparison test block is used to calibrate the size of the vertical unpenetrated and unfused defects.

[0042] Among them, the phased array instrument should have at least the function of A, S, B, C display, and have the function of positioning, quantifying and analyzing the defects on the scanned image; it can store and recall the A, S, B, C images, and The stored test data can be copied to the external storage space; the instrument software should have the focus law calculation function, the angle gain calibration function, and the T...

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Abstract

The invention relates to a construction steel structure weld ultrasonic phased array detection technology. The technology employs an ultrasonic phased array detection instrument (1) and an ultrasonic phased array probe (2) to detect the weld defect (7) in a weldment's weld (6), and consists of the steps of: 1. instrument setting; 2. instrument calibration; and 3. scanning detection. Specifically the phased array detection instrument comprises a host, the probe, software, a scanning device and accessories. According to the detection technology provided by the invention, ultrasonic phased array is employed to scan the weld only 1 to 2 times so as to finish detection, and the detection result and image are stored. The technology can effectively shorten the detection cycle, can provide beneficial reference basis for ensuring safety assessment of construction steel structure, reduces the occurrence of safety accidents, and provides reference for design to reduce conservative design, enriches construction steel structure weld nondestructive detection methods, improves work efficiency and quality, and escorts construction steel structure welding quality.

Description

Technical field [0001] The invention relates to the technical field of ultrasonic phased array detection, in particular to an ultrasonic phased array detection process for steel welds. Background technique [0002] Steel structures are widely used in construction, highways, railways, bridges, petrochemicals, etc. In order to ensure the safety performance of the structure, the welding quality is very critical, especially for the weld inspection of large steel structural components. With the rapid development of the steel structure industry, designers, owners and manufacturing units are paying more and more attention to the welding quality of steel structures, and the requirements for the detection rate of welding defects, defect equivalent accuracy and defect nature judgment are also increasing. . Conventional ultrasonic inspection can only judge the nature of the defect through the defect waveform and the experience of the flaw detector, and the operation time is long. Therefore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04
Inventor 朱爱希傅彦青段斌马德志宋晓峰刘菲李昭马计平肖静
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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