CN203385700U - Portable type ultrasonic guided-wave detection test block for axial defects - Google Patents
Portable type ultrasonic guided-wave detection test block for axial defects Download PDFInfo
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- CN203385700U CN203385700U CN201320494998.6U CN201320494998U CN203385700U CN 203385700 U CN203385700 U CN 203385700U CN 201320494998 U CN201320494998 U CN 201320494998U CN 203385700 U CN203385700 U CN 203385700U
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- test block
- ultrasonic guided
- wave detection
- portable type
- axial
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Abstract
The utility model provides a portable type ultrasonic guided-wave detection test block for axial defects. The portable type ultrasonic guided-wave detection test block is composed of a plurality of sections of steel pipes with the same length by welding, wherein axial linear cutting notch grooves which are arranged on the same straight line, face the same direction and have the same depth are arranged on the inner wall and the outer wall of each section of the steel pipe. The depth of each notch groove is 0.2mm-1.5mm. The portable type ultrasonic guided-wave detection test block for the axial defects has the advantages of being applicable to adjusting the ultrasonic guided-wave detection sensitivity of a small-diameter pipe and conveniently quantifying the depths of the axial defects of the small-diameter pipe; the test block is low in cost, and a detection result is accurate.
Description
Technical field:
The utility model belongs to the calibrated bolck of UT (Ultrasonic Testing), particularly a kind of portable axial flaw ultrasonic guided wave detecting test block.
Background technology:
In recent years, the supersonic guide-wave technology has obtained application comparatively widely in the detection of power industry small diameter tube, the main crackle that detects, mechanical mark, the inside and outside wall defects such as scratch and depression, but ultrasonic probe need to customize and make according to the small diameter tube of different size, and there is dispersion phenomenon in supersonic guide-wave, along with the increase of defect apart from probe distance, the echo amplitude of defect sharply descends, technology is difficult to reach and utilizes small diameter tube guided wave probe once to complete whole circumference detection at present, and guided wave detection and test block thereof are made to concrete regulation in relevant criterion at present, therefore in actual testing process, quantitatively exist certain difficulty to what find defect, the test block of the disclosed small diameter tube axial flaw of the utility model supersonic guide-wave can be carried out quantitatively finding defect, and have and use simply, portable characteristics.
The utility model content:
The purpose of this utility model is to provide the test block of a kind of portable small diameter tube ultrasonic guided wave detecting, utilizes this test block can regulate ultrasonic guided wave detecting sensitivity, is convenient to defect is carried out quantitatively
The technical solution of the utility model is:
The test block of a kind of portable axial flaw ultrasonic guided wave detecting, it is characterized in that: the weldless steel tube identical with wall thickness by several sections diameters forms, on the inwall of every section steel pipe and outer wall, have on same diameter line and same towards the identical axial line cutting cutting of the degree of depth.
Between several sections weldless steel tubes, adopt welding manner to connect.
All the inwall on pipeline section or exterior line cutting groove are on same straight line, and the degree of depth of line cutting groove is 0.2～1.5mm.
Advantage of the present utility model:
Utilize this portable test block can determine easily and fast the size of depth of defect equivalent.
The accompanying drawing explanation:
Fig. 1 is the structural representation of this portable small diameter tube axial flaw ultrasonic guided wave detecting test block
Fig. 2 is that the A of Fig. 1 is to schematic diagram
Embodiment:
A kind of portable axial flaw ultrasonic guided wave detecting test block as shown in the figure, the weldless steel tube identical with wall thickness by several sections diameters forms, on the inwall of every section steel pipe and outer wall, have on same diameter line and same towards the identical axial line cutting cutting of the degree of depth.
Between several sections weldless steel tubes, adopt welding manner to connect.
All the inwall on pipeline section or exterior line cutting groove are on same straight line, and the degree of depth of line cutting groove is 0.2～1.5mm.
This portable guided wave test block comprises pipeline section 1, pipeline section 2, pipeline section 3 and pipeline section 4, every length of pipe section is 70mm, the line cutting groove that two symmetries are along the circumferential direction arranged at every pipeline section, lay respectively at the inner and outer wall of pipe, the line cutting groove of the inwall of different pipe sections or outer wall is on same straight line, the degree of depth of the line cutting groove a of pipeline section 1,2,3,4, b, c, d is respectively 0.2mm, 0.6mm, 0.8mm, 1.5mm, and groove width is 0.3mm.
During the test block debugging, by probe placement, near a cutting groove position of any pipeline section, mobile probe, find the maximum echo of line cutting groove, echo is adjusted to all over the screen 80%, as reference sensitivity, in actual testing process, after finding defect, at pipe circumferencial direction mobile probe, find the highest echo, if now echo height is greater than 80%, the equivalent depth of description defect is greater than the line cutting groove degree of depth while regulating sensitivity.
Claims (3)
1. portable axial flaw ultrasonic guided wave detecting test block, it is characterized in that: the weldless steel tube identical with wall thickness by several sections diameters forms, on the inwall of every section steel pipe and outer wall, have on same diameter line and same towards the identical axial line cutting cutting of the degree of depth.
2. portable axial flaw ultrasonic guided wave detecting according to claim 1 test block is characterized in that: between several sections weldless steel tubes, adopt welding manner to connect.
3. portable axial flaw ultrasonic guided wave detecting according to claim 1 test block is characterized in that: all the inwall on pipeline section or exterior line cutting groove are on same straight line, and the degree of depth of line cutting groove is 0.2～1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494998.6U CN203385700U (en) | 2013-08-14 | 2013-08-14 | Portable type ultrasonic guided-wave detection test block for axial defects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494998.6U CN203385700U (en) | 2013-08-14 | 2013-08-14 | Portable type ultrasonic guided-wave detection test block for axial defects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203385700U true CN203385700U (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320494998.6U Expired - Fee Related CN203385700U (en) | 2013-08-14 | 2013-08-14 | Portable type ultrasonic guided-wave detection test block for axial defects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203385700U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706763A (en) * | 2017-01-18 | 2017-05-24 | 天津赛达鑫源检验检测有限公司 | Portable and adjustable tubular-product inner-diameter ultrasonic detection rod |
| CN111458408A (en) * | 2020-04-30 | 2020-07-28 | 国电锅炉压力容器检验有限公司 | Method for judging longitudinal defect of small-diameter pipe through ultrasonic guided wave detection |
-
2013
- 2013-08-14 CN CN201320494998.6U patent/CN203385700U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706763A (en) * | 2017-01-18 | 2017-05-24 | 天津赛达鑫源检验检测有限公司 | Portable and adjustable tubular-product inner-diameter ultrasonic detection rod |
| CN111458408A (en) * | 2020-04-30 | 2020-07-28 | 国电锅炉压力容器检验有限公司 | Method for judging longitudinal defect of small-diameter pipe through ultrasonic guided wave detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20180814 |