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Universal contact for nondestructive testing magnetic particle flaw detector

A magnetic particle flaw detection and nondestructive testing technology, which is applied in the direction of material magnetic variables, can solve the problems of unsatisfactory contact effect of sensitivity test pieces, insufficient detection sensitivity, and affecting detection sensitivity, so as to improve poor contact, increase sensitivity and applicable scenarios, and detect Conclusion Accurate and Reliable Effects

Pending Publication Date: 2019-04-30
中电华创(苏州)电力技术研究有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When detecting various complex metal parts, some detection positions are limited. During the detection process of the magnetic particle flaw detection method of the magnetic yoke method, except for workpieces with relatively flat surfaces such as large containers and pipes, there are cases where contact is limited or unsatisfactory.
In the process of magnetic particle inspection using the magnetic yoke contact method, the contact between the contact and the component directly affects the detection sensitivity. Therefore, in the detection process, the detection sensitivity is insufficient. It needs to be verified with the sensitivity test piece. The effect is still not satisfactory

Method used

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  • Universal contact for nondestructive testing magnetic particle flaw detector
  • Universal contact for nondestructive testing magnetic particle flaw detector
  • Universal contact for nondestructive testing magnetic particle flaw detector

Examples

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Embodiment

[0025] Such as Figure 2-4 As shown in the figure, a universal contact for non-destructive testing magnetic particle flaw detection machine includes an upper layer 1, a middle layer 2, and a lower layer 3 connected in sequence. Both the upper layer 1 and the lower layer 3 include a movable part 4 and a connecting part 5, one end of the connecting part 5 is fixedly connected to the middle layer 2, and the sheet-like structure at the other end of the connecting part 5 is stacked with the sheet-like structure of the movable part 4, and rotates through the rotating shaft 6 Connect, rotating shaft 6 is bolt, and one end of bolt is connected with horn nut, can carry out tightness adjustment. The rotating shafts 6 of the upper layer 1 and the lower layer 3 are perpendicular to each other. The sheet-like components of the lower layer 3 are fixed with screws.

[0026] The bottom end of the lower yoke contact is designed with front and rear chamfering, that is, it is processed with ch...

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Abstract

The invention relates to a universal contact for a nondestructive testing magnetic particle flaw detector. The universal contact comprises an upper layer (1), a middle layer (2) and a lower layer (3),which are connected in sequence. The upper layer (1) and the lower layer (3) are respectively a magnetic component in a sheet laminate structure; and the middle layer (2) is a solid structure. The upper layer (1) and the lower layer (3) respectively comprise a movable part (4) and a connecting part (5). One end of the connecting part (5) is fixedly connected with the middle layer (2); and the sheet structure at the other end of the connecting part (5) and the sheet structure of the movable part (4) overlap with each other and are in rotary connection through a rotation shaft (6). Compared with the prior art, the universal contact can greatly improve the situation of poor contact with the detection surface in the detection process, improves magnetic particle testing sensitivity, enlarges magnetic particle flaw detection applicable scene, and makes detection result more accurate and reliable.

Description

technical field [0001] The invention relates to a magnetic particle flaw detector, in particular to a universal contact for a nondestructive detection magnetic particle flaw detector. Background technique [0002] Magnetic particle testing is one of the most important methods of surface testing in conventional non-destructive testing. It mainly detects surface and near-surface defects of ferromagnetic materials, and plays an important role in the non-destructive testing of steel structures, special equipment and various metal parts of power plants. . When detecting various complex metal parts, some detection positions are limited. During the detection process of the yoke method magnetic particle flaw detection, except for workpieces with relatively flat surfaces such as large containers and pipes, there are limited or unsatisfactory contacts. In the process of magnetic particle inspection using the magnetic yoke contact method, the contact between the contact and the compon...

Claims

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Application Information

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IPC IPC(8): G01N27/84
CPCG01N27/84
Inventor 欧阳权初希
Owner 中电华创(苏州)电力技术研究有限公司
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