CN203231999U - Special test block for detecting electromagnetic pulsed eddy current of power grid metal material - Google Patents
Special test block for detecting electromagnetic pulsed eddy current of power grid metal material Download PDFInfo
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- CN203231999U CN203231999U CN201320204132.7U CN201320204132U CN203231999U CN 203231999 U CN203231999 U CN 203231999U CN 201320204132 U CN201320204132 U CN 201320204132U CN 203231999 U CN203231999 U CN 203231999U
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- test block
- metal material
- eddy current
- power grid
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Abstract
The utility model relates to a special test block for detecting electromagnetic pulsed eddy current of a power grid metal material. The special test block is a rectangular test block with the size of 100mm (length)*35mm (width)*5mm (height), and the special test block is made of a power grid frequently-used metal material; from a part 20mm away from the left edge on the upper surface of the test block, four wire cutting grooves are sequentially formed in parallel from left to right at equal intervals of 20mm. Moreover, from left to right, the depths of the four wire cutting grooves are respectively 0.25mm, 0.5mm, 1mm and 2mm. The special test block can realize quantitative analysis on defect of the power grid metal wire surface, when a probe scans the defect, a comparison test block can be used for comparison, thus, the depth of the defect can be determined roughly, and basic quantitative analysis on defect is realized.
Description
Technical field
The utility model belongs to electrical network metal material electromagnetic pulse eddy detection technology field, the special-purpose test block of especially a kind of electrical network metal material electromagnetic pulse EDDY CURRENT.
Background technology
The electrical network metal material is complex-shaped, traditional surface inspecting method such as magnetic, the infiltration can not be suitable fully.EDDY CURRENT is development in recent years a kind of Dynamic Non-Destruction Measurement faster, very sensitive to surperficial openings line, under rugged surroundings such as surface coating, rough surface, humidity, also can carry out testing, have simple in structure, highly sensitive, advantage such as frequency response characteristic is good and test circuit is simple, be specially adapted to the testing of fatigue crack and the surface stress crackle of complex-shaped electrical network metal material.The broadband properties that impulse eddy current has makes it be very suitable for the crack detection of metal deep layer and the pulse characteristic of excitation makes eddy current exist a very high peak value to be easy to observe and measure in metal.And pulse characteristic can carry out traditional EDDY CURRENT the transient analysis that can not carry out.The electromagnetic pulse eddy current can realize that the surface of material detects, and in real work, usually needs defective is carried out quantitatively, and this just needs to make special-purpose reference block, is used for quantitative to defective.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of electrical network metal material electromagnetic pulse EDDY CURRENT special-purpose test block.
The utility model solves its technical matters and takes following technical scheme to realize:
The special-purpose test block of a kind of electrical network metal material electromagnetic pulse EDDY CURRENT, this special use test block is that length * wide * height that an electrical network common metal material is made is the rectangular parallelepiped test block of 100 * 35 * 5mm, rise apart from 20mm place, edge, left side at this test block upper surface, evenly 20mm is parallel at interval from left to right successively is shaped on four line cutting grooves.
And, the described even at interval degree of depth of parallel four the line cutting grooves that are shaped on of 20mm from left to right successively, the degree of depth successively is 0.25mm, 0.5mm, 1mm, 2mm from left to right.
Advantage of the present utility model and good effect are:
The utility model can be realized the quantitative test to electrical network metal material surface defective, and when the probe scanning defective, along with the difference of depth of defect, variation has also taken place in the viewing area of LED.When finding defective, can utilize reference block to compare, can roughly determine the degree of depth of defective, thereby realize the basal ration analysis of defective.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the upward view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
The special-purpose test block of a kind of electrical network metal material electromagnetic pulse EDDY CURRENT, as shown in Figure 1, this special use test block is that length * wide * height that an electrical network common metal material is made is the rectangular parallelepiped test block of 100 * 35 * 5mm, rise apart from 20mm place, edge, left side at this test block upper surface, evenly 20mm is parallel at interval from left to right successively is shaped on four line cutting grooves.
In concrete enforcement of the present utility model, the described even at interval degree of depth of parallel four the line cutting grooves that are shaped on of 20mm from left to right successively, the degree of depth successively is 0.25mm, 0.5mm, 1mm, 2mm from left to right.
In concrete enforcement of the present utility model, described electrical network common metal material refers to Q235 or Q345B or Q420.
Application principle
When using probe scanning electrical network metal parts defective, along with variation has also taken place for the viewing area of the different scanning probe LED of metal parts depth of defect.When detecting metal parts discovery defective, utilize the actual detected viewing area contrast of scanning head LED to detect special-purpose test block with the viewing area of LED, according to the degree of depth of the corresponding line cutting groove that detects special-purpose test block, can roughly determine the degree of depth of actual detected defective.
Claims (2)
1. special-purpose test block of electrical network metal material electromagnetic pulse EDDY CURRENT, it is characterized in that: this special use test block is that length * wide * height that an electrical network common metal material is made is the rectangular parallelepiped test block of 100 * 35 * 5mm, rise apart from 20mm place, edge, left side at this test block upper surface, evenly 20mm is parallel at interval from left to right successively is shaped on four line cutting grooves.
2. the special-purpose test block of electrical network metal material electromagnetic pulse EDDY CURRENT according to claim 1, it is characterized in that: the described even at interval degree of depth of parallel four the line cutting grooves that are shaped on of 20mm from left to right successively, the degree of depth successively is 0.25mm, 0.5mm, 1mm, 2mm from left to right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320204132.7U CN203231999U (en) | 2013-04-22 | 2013-04-22 | Special test block for detecting electromagnetic pulsed eddy current of power grid metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320204132.7U CN203231999U (en) | 2013-04-22 | 2013-04-22 | Special test block for detecting electromagnetic pulsed eddy current of power grid metal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203231999U true CN203231999U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320204132.7U Expired - Lifetime CN203231999U (en) | 2013-04-22 | 2013-04-22 | Special test block for detecting electromagnetic pulsed eddy current of power grid metal material |
Country Status (1)
| Country | Link |
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| CN (1) | CN203231999U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271541A (en) * | 2016-04-08 | 2017-10-20 | 贵州黎阳航空动力有限公司 | A kind of turbo blade eddy current inspection reference block clamp for machining and preparation method thereof |
| CN109341507A (en) * | 2018-11-20 | 2019-02-15 | 中国航发贵州黎阳航空动力有限公司 | A kind of vortex thickness measuring calibration comparison device |
| CN110231398A (en) * | 2019-07-16 | 2019-09-13 | 山东电力工业锅炉压力容器检验中心有限公司 | A kind of simulating test pieces for lead sealing Defect With Eddy Current Testing and preparation method thereof and application |
-
2013
- 2013-04-22 CN CN201320204132.7U patent/CN203231999U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271541A (en) * | 2016-04-08 | 2017-10-20 | 贵州黎阳航空动力有限公司 | A kind of turbo blade eddy current inspection reference block clamp for machining and preparation method thereof |
| CN107271541B (en) * | 2016-04-08 | 2024-02-02 | 中国航发贵州黎阳航空动力有限公司 | Turbine blade eddy current flaw detection reference block machining clamp and manufacturing method thereof |
| CN109341507A (en) * | 2018-11-20 | 2019-02-15 | 中国航发贵州黎阳航空动力有限公司 | A kind of vortex thickness measuring calibration comparison device |
| CN109341507B (en) * | 2018-11-20 | 2020-09-29 | 中国航发贵州黎阳航空动力有限公司 | Eddy current thickness measurement calibration contrast device |
| CN110231398A (en) * | 2019-07-16 | 2019-09-13 | 山东电力工业锅炉压力容器检验中心有限公司 | A kind of simulating test pieces for lead sealing Defect With Eddy Current Testing and preparation method thereof and application |
| CN110231398B (en) * | 2019-07-16 | 2023-01-31 | 山东电力工业锅炉压力容器检验中心有限公司 | Simulation test block for detecting defects of lead-sealed eddy current test and manufacturing method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |
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| CX01 | Expiry of patent term |