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Detecting method and detecting system for detecting rectangular metal bars

A technology of metal bars and detection methods, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, can solve the problems of low detection efficiency, high operator quality requirements, visual fatigue, etc., to achieve rapid detection, improve detection efficiency, The effect of ensuring the detection accuracy

Inactive Publication Date: 2012-06-20
SHANTOU HUAXING METALLURGICAL EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

This method is labor-intensive, has low detection efficiency, and requires high quality operators.
Due to the unevenness of manual scanning, there will inevitably be missed inspections, the scanning quality is unstable, and only A-scan display is not intuitive enough, and it is easy to cause visual fatigue. The establishmen

Method used

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  • Detecting method and detecting system for detecting rectangular metal bars
  • Detecting method and detecting system for detecting rectangular metal bars

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Embodiment Construction

[0029]

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] see figure 1 In the connection diagram of the detection system, the rectangular metal bar 9 to be tested is placed in the water tank 8 and submerged under the liquid surface 81, and the probe 1 is installed on the scanning mechanism 5, and is set opposite to the rectangular metal bar 9 to be tested The ultrasonic flaw detector 2 is connected with the probe 1, and the industrial computer 3 is equipped with an ultrasonic acquisition card 31, a serial interface 32 and an input device 33, and the ultrasonic acquisition card 31 is connected with the ultrasonic flaw detector 2 for receiving the signal of the ultrasonic flaw detector 2 , and send a driving signal through the serial interface 32; the driving device 4 is connected to the serial interface 3...

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Abstract

The invention relates to a detecting method and a detecting system for detecting rectangular metal bars. The detecting method includes the steps: 1 mounting a flat probe and a TR probe on a detecting device; 2 rapidly pre-scanning the rectangular metal bars to be detected at a high speed and a large distance; 3 detecting defects by the TR probe when the defects close to the surfaces of the rectangular metal bars to be detected are displayed by means of rapid pre-scanning, or detecting defects by the flat probe when the defects on cores of the rectangular metal bars to be detected are displayed by means of rapid pre-scanning; and 4 reconstructing the shapes of the rectangular metal bars according to detecting values of the flat probe and the TR probe. When detecting instructions are inputted by an input device, a driving device drives a scanning device so that the probes scan the rectangular metal bars to be detected, and detecting signals are transmitted to an industrial personal computer through an ultrasonic scanner and an ultrasonic acquisition card. After the detecting signals are processed by the industrial personal computer, detecting results are outputted.

Description

technical field [0001] The invention relates to a detection method and system for rectangular metal rods, in particular to a detection method and system for water immersion ultrasonic detection of rectangular metal rods. Background technique [0002] Ultrasonic nondestructive testing technology is an important means of testing the internal quality of products. It uses the influence of the acoustic properties of the material itself or internal defects on the propagation of ultrasonic waves to non-destructively detect the size, shape and distribution of internal and surface defects (such as cracks, bubbles, slag inclusions, etc.) and determine the properties of materials. [0003] Ultrasound is used in non-destructive testing mainly because of the following characteristics: (1) When ultrasonic waves propagate in a medium, they will be reflected when encountering an interface; (2) Ultrasonic waves have good directivity, and the higher the frequency, the better the directivity;...

Claims

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Application Information

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IPC IPC(8): G01N29/06
Inventor 佘京鹏陈钢李立鸿李上吉罗民寄
Owner SHANTOU HUAXING METALLURGICAL EQUIP CO LTD
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