Steel pipe magnetic powder flaw detection imaging detection system and steel pipe magnetic powder flaw detection imaging detection method

Abstract

The invention relates to a steel pipe magnetic powder flaw detection imaging detection system and a steel pipe magnetic powder flaw detection imaging detection method. The steel pipe magnetic powder flaw detection imaging detection system comprises a magnetic powder flaw detector, a magnetic powder flaw detection imaging device and an operation controller, wherein the magnetic powder flaw detectorrotates a steel pipe and sprays a magnetic suspension liquid on the steel pipe, and comprises a flaw detector mechanical movement device, a magnetic powder spraying device and a flaw detector controller, the magnetic powder flaw detection imaging device performs fluorescent imaging detection on the steel pipe, and comprises an imaging camera, an ultraviolet light source, an imaging controller andthe operation controller, and the operation controller is the operation terminal of the steel pipe magnetic powder flaw detection imaging detection system, and communicates with the flaw detector controller and the imaging controller. With the technical scheme of the present invention, the linkage between the fluorescent imaging system and the steel pipe flaw detector can be effectively achieved,the magnetic powder flaw detection and imaging detection operation can be automatically performed on the steel pipe, and the system and the method have effects of reliable operating, convenient operation, labor saving, efficiency improving and safe production.

Description

technical field [0001] The invention relates to an automatic detection technology of magnetic particle flaw detection, in particular to a steel pipe magnetic particle flaw detection imaging detection system and method. Background technique [0002] In the production process of steel pipes, the use of magnetic particle fluorescence flaw detection is an important quality inspection process. The traditional magnetic particle fluorescence inspection is to use the manual inspection method to apply a magnetic field to the measured part of the steel pipe in the dark room, and then spray the magnetic suspension. If the test piece has surface or shallow surface defects, magnetic flux leakage will occur in the corresponding part, thus The magnetic powder that excites this part emits fluorescence, which is finally known by the naked eye of the operator. [0003] The above-mentioned method of manually detecting defects has the following defects: the labor intensity of the operator is v...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned method of manually detecting defects has the following defects: the labor intensity of the operator is very high; the operator keeps focused for a long time in a dark environment, the spirit and human eyes are prone to fatigue, and the inspection effect becomes poor; there is no scientific image data in the inspection process Keeping archives is not conducive to subsequent quality analysis and responsibility determination

Since the magnetic particle flaw detection of workpieces such as steel pipes is a discrete and intermittent process in the entire production process of steel pipes, the magnetic particle flaw detection imaging detection device needs to fully match the information flow of the steel pipe production process to perform effective flaw detection inspections. Only when the steel pipe ready signal is triggered , the magnetic particle fluorescence flaw detection imaging inspection is an effective inspection, and the steel pipe is in transit or in the waiting state, which is an invalid inspection. At this time, the information flow of the inspection of the steel pipe production will be chaotic, which will have a negative impact on the smooth flow of production.

The current imaging detection is carried out by manual control, and the labor intensity of the operator is also very high, and it is easy to cause operational errors when the energy is not concentrated.

[0005] Chinese patent CN200410043753.7 discloses a self-adaptive adjustment of light intensity in a machine vision measurement system. This is an independent magnetic particle flaw detection imaging detection system, which is completely independent from the flaw detection equipment and cannot achieve efficient linkage operation and optimal working conditions.

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