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C-type display method for longitudinal wave vertical flaw detection method for hollow shaft

A display method and hollow shaft technology, applied in the field of ultrasonic flaw detection, can solve problems such as the inability to correctly display artificial defects, and achieve a high degree of automation

Active Publication Date: 2019-02-12
常州常瑞轨道交通科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a C-type display method for the longitudinal wave vertical flaw detection method for hollow shafts, which solves the problem that the ultrasonic C-type display cannot correctly display artificial defects when the longitudinal wave vertical incident flaw detection method is used for flaw detection

Method used

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  • C-type display method for longitudinal wave vertical flaw detection method for hollow shaft
  • C-type display method for longitudinal wave vertical flaw detection method for hollow shaft
  • C-type display method for longitudinal wave vertical flaw detection method for hollow shaft

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Embodiment Construction

[0025] Such as Figure 1-3 The shown C-type display method for longitudinal wave vertical flaw detection method for hollow shaft includes the following steps:

[0026] Step 1: Connect the ultrasonic detector to the computer, set the surface echo voltage 5 and the defect echo voltage 4 in the computer, the surface echo voltage 5 is the ultrasonic probe of the ultrasonic detector receiving the The peak voltage value generated during the echo of the surface, the defect echo voltage 4 is the peak voltage value generated when the ultrasonic probe of the ultrasonic detector receives the echo of the defect in the hollow shaft 6;

[0027] Step 2: Use the ultrasonic probe of the ultrasonic detector to detect a group of flaw detection points 1 on the surface of the outer ring of the hollow shaft 6, and the connection line of the group of flaw detection points 1 is a spiral line;

[0028] Step 3: When the ultrasonic probe reaches any flaw detection point 1, the ultrasonic probe sends a ...

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Abstract

The invention discloses a C-type display method for a longitudinal wave vertical flaw detection method for a hollow shaft, and belongs to the technical field of ultrasonic flaw detection. Two gates are adopted for performing flaw detection, so that the problem that C-type display of ultrasonic waves cannot correctly display artificial defects when the longitudinal wave vertical incidence flaw detection method is adopted for performing flaw detection is solved; and the bottom surface echo gate (2) and the flaw detection gate (3) can be automatically judged and set according to different wall thickness positions of the hollow shaft, so that the automation level is high.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic flaw detection. Background technique [0002] At present, when the CRH hollow shaft of the motor car and the HXD1D hollow shaft of the locomotive are used for ultrasonic automatic flaw detection, both the transverse wave oblique incidence flaw detection method and the longitudinal wave vertical incidence flaw detection method are used. [0003] When using the vertical wave vertical incidence flaw detection method for flaw detection, the C-type display of ultrasonic waves cannot correctly display artificial defects. Contents of the invention [0004] The purpose of the present invention is to provide a C-type display method for the longitudinal wave vertical flaw detection method for hollow shafts, which solves the problem that the ultrasonic C-type display cannot correctly display artificial defects when the longitudinal wave vertical incident flaw detection method is used for flaw detection....

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/44
CPCG01N29/4409
Inventor 肖潇彭政峰潘振新
Owner 常州常瑞轨道交通科技有限公司