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Ultrasonic creeping wave probe defect echo positioning device and method

A technology of creeping wave probe and defect echo, which is applied to the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and measuring devices. It can solve unproposed solutions and affect the precise positioning of horizontal positions and other problems, to achieve the effect of simple operation and accurate measurement

Pending Publication Date: 2020-09-01
国能锅炉压力容器检验有限公司
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Problems solved by technology

[0003] However, since the creeping wave propagates along the surface of the metal material, and the refracted longitudinal and transverse waves in the steel exist at the same time, the testers cannot quickly and accurately find the highest echo on the arc surface on the conventional CSK-ⅠA standard test block like ordinary shear wave probes. The measured probe incidence point and delay, which affect the precise positioning of the horizontal position of the defect
[0004] For the above technical problems, no effective solution has been proposed at present

Method used

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  • Ultrasonic creeping wave probe defect echo positioning device and method
  • Ultrasonic creeping wave probe defect echo positioning device and method

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0037] like Figure 1-2 As shown, an ultrasonic creeping wave probe defect echo locating device according to an embodiment of the present invention includes a block A1, the block A1 includes a block C3 at the right end, and the front side of the block A1 is provided with a scale line A4, Block C3 is located on the right side of scale line A4, block B2 is welded on the left side of block A1, and the upper side of block B2 is provided with artificial groove 6, and the front side of block B2 is ...

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Abstract

The invention discloses an ultrasonic creeping wave probe defect echo positioning device and method. The device comprises a block A, and the block A comprises a block C at the right end; scale marks Aare arranged on the front side surface of the block A; the block C is positioned on the right side of the scale line A; a block B is welded on the left side of the block A; a manual notch groove is formed in the upper side surface of the block B; scale marks B are arranged on the front side face of the block B, the scale marks B are located on the right side of the artificial notch groove, ultrasonic creeping wave probes are arranged above the block A and the block B, wedge blocks are arranged in the ultrasonic creeping wave probes, piezoelectric wafers are arranged on the wedge blocks, and the ultrasonic creeping wave probes are connected with an ultrasonic flaw detector through signal lines. According to the method, the incident point and the time delay of the ultrasonic creeping wave probe can be conveniently, rapidly and accurately measured, the problem that the time delay and the incident point of the ultrasonic creeping wave probe cannot be measured on a common test block is solved, and then accurate positioning of the horizontal position of a defect can be found.

Description

technical field [0001] The invention relates to the technical field of ultrasonic creeping wave probes, in particular to an ultrasonic creeping wave probe defect echo positioning device and method. Background technique [0002] Open cracks on the surface of metal materials and buried cracks near the surface are considered to be extremely dangerous defects, which destroy the integrity of metal materials and reduce the safety factor of workpieces. The ultrasonic creeping wave probe produces a compression wave that propagates along the surface of the material and is very sensitive to surface and near-surface cracks. And because the longitudinal wave is the main component, the creeping wave is less disturbed by the workpiece surface scratches, unevenness, depressions, droplets, etc. than the surface wave. Therefore, the creeping wave is widely used in metal parts welds, steam turbine blades, crankshafts and other steel Non-destructive testing of surface opening cracks and near-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/30G01N29/265
CPCG01N29/04G01N29/30G01N29/265G01N2291/0234Y02E30/30
Inventor 王强李涛罗为民纳日苏陶业成张倚雯张广兴
Owner 国能锅炉压力容器检验有限公司
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