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An Ultrasonic Phased Array Inspection Technology for Welds of Building Steel Structures

A technology of ultrasonic phased array and structural welds, which is applied in the direction of using sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., can solve problems that have not yet been applied, and achieve the effects of reducing safety accidents, shortening the detection cycle, and enriching non-destructive testing methods

Active Publication Date: 2017-12-22
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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  • An Ultrasonic Phased Array Inspection Technology for Welds of Building Steel Structures
  • An Ultrasonic Phased Array Inspection Technology for Welds of Building Steel Structures
  • An Ultrasonic Phased Array Inspection Technology for Welds of Building Steel Structures

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Embodiment Construction

[0041] see Figure 1 to Figure 5 Shown: an ultrasonic phased array detection process for welds in building steel structures, the process uses an ultrasonic phased array detector 1 and an ultrasonic phased array probe 2 to detect welding defects 7 in the weld 6 of the weldment; 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 vertical incomplete penetration and unfused defects.

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

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Abstract

The invention relates to an ultrasonic phased array detection process for welding seams of building steel structures. The process uses an ultrasonic phased array detector (1) and an ultrasonic phased array probe (2) for welding in welds (6) of welded parts Defect (7) is detected, including the following steps: Step 1, instrument setting; Step 2, instrument calibration; Step 3, scanning detection. Among them, the phased array detection instrument includes the host, probe, software, scanning device and accessories. The beneficial effects of the present invention are: the detection process uses the ultrasonic phased array to complete the detection only by scanning the weld seam once or twice, and the detection results and image storage can effectively shorten the detection cycle, which can ensure the construction The safety assessment of steel structures provides a favorable reference basis, reduces the occurrence of safety accidents, and provides reference for design to reduce conservative design, enriches the non-destructive testing methods of building steel structure welds, improves work efficiency and quality, and contributes to building steel structure Welding quality escort.

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, and petrochemical industries. In order to ensure the safety performance of structures, welding quality is very critical, especially for large-scale steel structure components. Weld detection is extremely important. 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 getting higher and higher. . Conventional ultrasonic testing can only judge the nature of defects based on defect waveforms and the experience of flaw detectors, and the w...

Claims

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Application Information

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Patent Type & Authority Patents(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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