Ultrasonic type steel pipe flaw detection method
An ultrasonic and steel pipe technology, applied in 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 problems such as warping, probe vibration, and affecting the reliability and accuracy of flaw detection question
Active Publication Date: 2018-11-13
宝武特冶航研科技有限公司
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Problems solved by technology
In the actual automatic flaw detection process, because the steel pipe is in the transmission process of detection, the probe of the existing ultrasonic automatic flaw detection device is usually directly fixed on the probe bracket, and the probe bracket is fixedly connected with the flaw detection water tank, because there are many types of steel pipes, The fixed setting of the probe cannot meet the flaw detection requirements of various types of steel pipes
At the same time, in the process of steel pipe flaw detection, when the defect position of the steel pipe passes through, it is easy to touch the probe and cause the probe to vibrate and warp, resulting in a change in the amplitude of the defect signal. If it cannot be adjusted in time, it will also affect the reliability and accuracy of flaw detection. sex
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[0051] The present invention will be further described in detail below in conjunction with a steel pipe surface defect detection system capable of implementing the method of the present invention and the accompanying drawings.
[0052] During specific implementation: if Figure 1 to Figure 10 shown.
[0053] A steel pipe surface defect detection system, including a base plate, which is provided with a steel pipe transmission device 1 for driving the steel pipe to move along the axis direction and a steel pipe flaw detection device 2 arranged on the steel pipe movement path, and also includes a steel pipe feeding device set on the bottom plate Straightening device 3, steel pipe feeding The straightening device 3 is arranged at the feeding end of the steel pipe transmission device and is used for straightening the steel pipe.
[0054] In this way, the steel pipe is straightened first and then the material is fed for flaw detection, which can better avoid the influence of the st...
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The invention discloses an ultrasonic type steel pipe flaw detection method which is characterized in that ultrasonic flaw detection liquid is heated and then returns to and circularly flows into a detection box, so that the temperature of the detection liquid in the detection box is increased, and bubbles in the detection liquid can expand until overflow after being heated. The ultrasonic type steel pipe flaw detection method has the advantage that the flaw detection effect and the reliability are improved.
Description
technical field [0001] The invention relates to a steel pipe surface defect detection device; in particular, it relates to an ultrasonic steel pipe flaw detection method. Background technique [0002] Steel pipe is an important steel material widely used. Due to various factors in the production process of steel pipe, defects such as longitudinal cracks, transverse cracks, folding, and delamination often exist on the steel pipe wall. If the steel pipe is defective, it will break during use and cause accidents, and even cause serious consequences, which may cause major economic losses or even casualties. For this reason, steel pipes for important purposes require complete non-destructive testing equipment to conduct online flaw detection on steel pipes. To ensure the quality of steel pipes leaving the factory, the existing flaw detection methods mainly include ultrasonic flaw detection and eddy current flaw detection inspection methods. The existing steel pipe flaw detection...
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IPC IPC(8): G01N29/04G01N27/90
CPCG01N27/90G01N27/9026G01N29/04G01N29/041G01N29/27G01N2291/0234G01N2291/0289
Inventor 吴建军赵伟周红波
Owner 宝武特冶航研科技有限公司