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A comparison test block for ultrasonic testing

An ultrasonic and test block technology, applied in the field of ultrasonic testing, can solve the problem of difficulty in collecting defects, difficult to know in advance the position, shape, size and type of test block defects, and inability to understand the inductive understanding of typical echo curves and dynamic waveform envelopes and other issues to achieve the effect of improving efficiency

Active Publication Date: 2015-11-25
浙江方圆金属材料检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of comparison test block cannot allow inspectors to have a perceptual understanding of the typical echo curve and dynamic waveform envelope of the defect
[0005] In addition, some units collect natural defects on scrapped components and process them into test blocks for research. However, in this case, it is difficult to know the position, shape, size, and type of defects in the test block in advance, and it is also very difficult to collect defects.

Method used

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  • A comparison test block for ultrasonic testing
  • A comparison test block for ultrasonic testing
  • A comparison test block for ultrasonic testing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: a kind of comparison test block for ultrasonic detection, such as figure 1 As shown, the test block 1 is a steel cuboid, the right half of the top surface of the test block is the detection surface 2, the ultrasonic probe 8 moves on the detection surface 2, and the left half of the bottom surface 4 of the test block is opened toward The defect groove 3 inclined in the direction of the detection surface 2 is detected, and the inclination angle of the defect groove 3 relative to the bottom surface 4 of the test block is 30 degrees.

[0019] The cross-section of the defective groove 3 is a parallelogram. The defective groove 3 includes a groove bottom 5 and oppositely arranged front and rear groove walls 6a, 6b and left and right groove walls 7a, 7b. The groove bottom 5 is the surface to be inspected. The groove bottom 5 is plane and the groove bottom is perpendicular to the bottom surface 4 of the test block, the left and right groove walls 7a, 7b are perpen...

Embodiment 2

[0021] Embodiment 2: a kind of comparison test block for ultrasonic detection, such as figure 2 As shown, the test block 1 is a steel cuboid, the right half of the top surface of the test block is the detection surface 2, and the left half of the bottom surface 4 of the test block is provided with a defect groove 3 inclined towards the detection surface 2, The angle of inclination of the defect groove 3 relative to the bottom surface 4 of the test block is 30 degrees.

[0022] The cross-section of the defective groove 3 is a parallelogram. The defective groove 3 includes a groove bottom 5 and oppositely arranged front and rear groove walls 6a, 6b and left and right groove walls 7a, 7b. The groove bottom 5 is the surface to be inspected. And the groove bottom 5 is a concave arc surface, the left and right groove walls 7a, 7b are perpendicular to the bottom surface 4 of the test block, and the front and rear groove walls 6a, 6b are inclined relative to the bottom surface 4 of t...

Embodiment 3

[0024] Embodiment 3: a kind of comparison test block for ultrasonic detection, such as image 3 As shown, the test block 1 is a steel cuboid, the right half of the top surface of the test block 1 is the detection surface 2, and the left half of the bottom surface 4 of the test block is provided with a defect groove 3 inclined toward the detection surface 2 , the angle of inclination of the defect groove 3 relative to the bottom surface 4 of the test block is 30 degrees.

[0025] The cross section of the defective groove 3 is circular, and the groove bottom 5 of the defective groove is the inspection surface, and the inspection surface is a concave spherical surface.

[0026] This embodiment mainly simulates volume-type natural defects such as pores and slag inclusions in steel forgings, steel plates or welds, and the diameter of the inspected surface of the defect groove can be selected according to requirements. According to the characteristic analysis of ultrasonic detectio...

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Abstract

The invention discloses a comparison test block for ultrasonic detection. The test block is a steel cuboid, and is characterized in that: the right half of the test block top surface is a detection side, the left half of the test block bottom surface is provided with a defect groove tilting toward the detection side, and the tilting angle of the defect groove relative to the test block bottom surface is 30-60 degrees. Due to adoption of the technical scheme, ultrasonic detection personnel can accumulate enough practical experience in a shorter time so as to become mature detection personnel. The practical experience accumulation process of personnel probably needs 3-6 months, which is shorter than the cycle needed by cultivation of qualified ultrasonic detection personnel by more than 75%, thus greatly improving the talent cultivation efficiency. The defect groove is preferably designed with a tilting angle of 30 degrees, so that the processing production process of the test block can be standardized, and the detected side of an artificial groove can be positioned at a direction in favor of implementing detection.

Description

technical field [0001] The invention relates to the technical field of ultrasonic detection, in particular to a comparison test block for ultrasonic detection. Background technique [0002] A-type pulse reflection ultrasonic testing is an important and commonly used non-destructive testing method. Compared with other commonly used non-destructive testing methods, A-type pulse reflection ultrasonic testing has the highest requirements for personal skills and quality, and the testing results are affected by personal skills. The largest and most difficult to train is the qualified A-type pulse reflection ultrasonic testing personnel. [0003] In the actual operation process of the type A pulse reflection ultrasonic wave, the detection of the workpiece and the evaluation of the conclusion need to be completed simultaneously, which requires the detection personnel to have considerable experience. In the actual A-type pulse reflection ultrasonic testing work, the rich experience ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/30
Inventor 李述亭安发顺
Owner 浙江方圆金属材料检测有限公司
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