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Phased array ultrasonic detecting method of weld joint of aluminum alloy welded shell

An ultrasonic detection and aluminum alloy technology, which is applied in the direction of using sound waves/ultrasonic waves/infrasonic waves to analyze solids, instruments, and analytical materials, etc., can solve problems such as missed inspections or over-inspections, and achieve the effect of easy traceability and preservation

Pending Publication Date: 2018-04-10
JIANGSU JINXIN ELECTRIC CO LTD
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AI Technical Summary

Problems solved by technology

[0006] However, due to the different thicknesses of aluminum alloy welded shells in the actual production process, the use of ordinary phased array ultrasonic testing methods cannot achieve the expected purpose, and will also cause missed or over-inspected

Method used

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  • Phased array ultrasonic detecting method of weld joint of aluminum alloy welded shell
  • Phased array ultrasonic detecting method of weld joint of aluminum alloy welded shell
  • Phased array ultrasonic detecting method of weld joint of aluminum alloy welded shell

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Embodiment Construction

[0023] 1. Pre-testing processing:

[0024] 1. Venue:

[0025] The testing environment should not be carried out in places that affect the normal operation of ultrasonic instruments and auxiliary electrical equipment, such as places with strong magnetism, vibration, high frequency, large dust, corrosive gas and loud noise.

[0026] 2. Temperature and humidity:

[0027] The temperature and humidity of the working point should be controlled within the allowable range of testing instruments, auxiliary electrical equipment and materials.

[0028] 3. For the movement and coupling of the probe, the surface of the inspected workpiece is free from dust, impurities, and pollutants, and the surface roughness is ≤ Ra6.3.

[0029] The workpiece is placed on a console that can control constant velocity and move axially along the straight pipe. The control movement speed of this example is 80mm / s.

[0030] 2. Host for testing:

[0031] Olympus (OLYMPUS) OmniScan MX2 phased array ultraso...

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Abstract

The invention discloses a phased array ultrasonic detecting method of a weld joint of an aluminum alloy welded shell, and relates to the technical field of welding of the aluminum alloy welded shell,in particular to a quality detecting technology of the weld joint. Phased array probes are adopted for linear scanning in the direction perpendicular to the weld joint along a straight pipe weld joint. The preferential detecting scheme for selecting various parameters of the corresponding phased away probes according to the maximum thickness of a detected welded pipe is put forward, and the aims of convenience, rapidness, accuracy and later-period analysis convenience are achieved.

Description

technical field [0001] The invention relates to the technical field of welding of aluminum alloy welding shells, in particular to the quality detection technology of welding seams. Background technique [0002] In industrial production, after the materials are welded through longitudinal seams, circular seams or spiral seams to form the pipes required by the design, it is necessary to conduct ultrasonic non-destructive testing on the welds of the pipes in time, and only those that meet the quality requirements can enter the next process. Those that do not meet the quality requirements after inspection must be reworked. [0003] At present, the actual method of inspecting the weld is: place the work on a workbench that can control its movement, and the inspector holds an ordinary ultrasonic instrument, and the inspector keeps his eyes on the dynamic waveform information through the display screen on the ultrasonic instrument. When abnormal information (that is, does not meet...

Claims

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Application Information

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IPC IPC(8): G01N29/04
CPCG01N29/04G01N2291/267
Inventor 朱和珍朱俊阳徐高亮刘佳佳周春
Owner JIANGSU JINXIN ELECTRIC CO LTD
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