CN201464434U - Special test block for ultrasonic defect detection pipe bend - Google Patents
Special test block for ultrasonic defect detection pipe bend Download PDFInfo
- Publication number
- CN201464434U CN201464434U CN2009201039022U CN200920103902U CN201464434U CN 201464434 U CN201464434 U CN 201464434U CN 2009201039022 U CN2009201039022 U CN 2009201039022U CN 200920103902 U CN200920103902 U CN 200920103902U CN 201464434 U CN201464434 U CN 201464434U
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- test block
- defect detection
- special test
- special
- pipe
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 title abstract description 19
- 230000007547 defect Effects 0.000 title abstract description 14
- 230000001788 irregular Effects 0.000 claims abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 11
- 238000012545 processing Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to a special test block for the ultrasonic defect detection of a pipe bend and relates to the technical field of ultrasonic defect detection. The special test block is in the shape of a column; the cross section of the special test block is an irregular figure which is formed by sequentially connecting the external arcs of the cross sections of two or more fan-shaped pipe sections of different sizes; the middle part of each pipe section is provided with linear cutting slot structures on the inner and the outer walls; and the depth of the linear cutting slot structure is along the radial direction and the length thereof is along the axial direction. Compared with the prior art, the utility model has the advantages that: the special contrast test block can be used for adjusting the defect detection sensitivity and the scanning speed and estimating the magnitude of detect equivalent of workpieces during the defect detection of the longitudinal crack of the inner and the outer walls of the pipe bends with medium and small diameter; the special test block has small volume and is convenient to use and carry. The special test block is mainly used for adjusting the defect detection sensitivity and the scanning speed during the ultrasonic defect detection of the longitudinal crack of the inner and the outer walls of the pipe bends with medium and small diameter.
Description
Technical field
The utility model relates to the UT (Ultrasonic Testing) technical field.
Background technology
In the pulse reflection method UT (Ultrasonic Testing), finish defective qualitative, quantitatively reach work such as flaw detection sensitivity adjustment, must evaluate by means of the method for comparing with the artificial reflecting body (test block) of known simple shape, the utilization test block is characteristics of UT (Ultrasonic Testing) as comparing with reference to foundation, therefore various UT (Ultrasonic Testing) standards, technology all have corresponding standard test block or reference block, and being used to demarcate detection range is the sweep velocity adjustment; Estimate defect size and promptly compare, and represent Defect Equivalent size in the detected pieces, adjust flaw detection sensitivity and formulation grading and declare useless quantitative yardstick with artificial reflecting body size with the artificial reflecting body echo of defect reflection echo and test block in the detected pieces; Some performance of testing tool and probe is as the forward position size of angle probe and K value etc.At present domestic does not still have in, the UT (Ultrasonic Testing) standard or the technology of pipeline path elbow interior wall longitudinal crack, and corresponding standard or reference block, thus can't survey in the nothing exactly, pipeline path elbow interior wall longitudinal crack defective.
Summary of the invention
The purpose of this utility model provides the special-purpose test block of a kind of channel bend UT (Ultrasonic Testing), use this special use reference block, in, in the flaw detection of the inside and outside wall longitudinal crack of pipeline path elbow, can carry out flaw detection sensitivity, sweep velocity adjustment and estimate Defect Equivalent size in the workpiece, its volume is little, use and easy to carry.Carry out sweep velocity and flaw detection sensitivity adjustment in being mainly used in during the ultrasound examination of the inside and outside wall longitudinal crack of path channel bend.
The main technical schemes of this utility model is: the special-purpose test block of a kind of channel bend UT (Ultrasonic Testing), it is characterized in that it is shaped as column, the irregular figure that its xsect is joined in proper order and formed by the fan-shaped pipeline section xsect external arc of two or 2 above different sizes, every kind of specification pipeline section middle part is equipped with line cutting groove structure on inside and outside wall, the degree of depth of cutting groove structure is along radial direction, and length is along the axis direction of column.
Described fan-shaped be more than or equal to 1/4 fan-shaped for good.
Good effect of the present utility model is: with prior art contrast, use this special use reference block, in, in the inside and outside wall longitudinal crack flaw detection of pipeline path elbow, can carry out flaw detection sensitivity, sweep velocity adjustment and estimate Defect Equivalent size in the workpiece.This test block volume is little, use and easy to carry, test block has solved in the plurality of specifications, during the inside and outside wall longitudinal crack of small diameter pipeline elbow UT (Ultrasonic Testing), the technical barrier of Defect Equivalent size in sweep velocity adjustment, flaw detection sensitivity adjustment and the evaluation workpiece.Carry out sweep velocity and flaw detection sensitivity adjustment in being mainly used in during the ultrasound examination of the inside and outside wall longitudinal crack of path channel bend.
Be described further below in conjunction with embodiment and accompanying drawing, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Each label implication is among Fig. 1: 1 is column, and 2 is fan-shaped pipeline section external arc, and 3 is that line cutting groove structure .1,1 ', 2,2 ', 3,3 ', 4,4 ' is each fan-shaped pipeline section tie point: 0,01,02,03,04 is each fan-shaped pipeline section center of circle.
Embodiment
Referring to Fig. 1, Fig. 2, the special-purpose test block of this channel bend UT (Ultrasonic Testing), it is characterized in that it is shaped as column 1, its xsect is by Φ 89 * 8, Φ 76 * 8, and Φ 70 * 4.5, the irregular figure that Φ 60 * 5 four kind of specification pipeline section external arc is joined in proper order and formed, every kind of specification pipeline section middle part is equipped with line cutting groove structure 3 on inside and outside wall, be used for adjusting when corresponding specification part detects sweep velocity and flaw detection sensitivity.Cutting groove structure 3 is the line cutting groove of wide 0.1mm, dark 0.5mm, is used for adjusting when corresponding specification elbow inside and outside wall longitudinal crack detects sweep velocity and flaw detection sensitivity, Defect Equivalent size in the evaluation workpiece.
The test block main body is by Φ 89 * 8, and Φ 76 * 8, and Φ 70 * 4.5, and Φ 60 * 5 four kind of a specification pipeline section combines, and this test block is by computerized mapping, numerically-controlled machine line cutting processing.Drawing, procedure of processing: at first being the center of circle with O, drawing Φ 89 * 8 specification quarter turns, is the center of circle with O1, O2, O3 respectively then, draws Φ 76 * 8 successively, and Φ 70 * 4.5, Φ 60 * 5 specification quarter turns; By numerically-controlled machine, after the line cutting processing goes out the irregular cycle assembly, at the inside and outside wall in quarter turn centre separately, along diametric(al) respectively working depth be the line cutting groove of 05mm, line cutting groove width is 0.1mm; Make corresponding Φ 89 * 8 at four kinds of circular arc end faces of Fig. 1 at last, Φ 76 * 8, and Φ 70 * 4.5, and Φ 60 * 5 steel impression marks get final product.
Each line segment size among Fig. 1:
0-1＝0-2＝44.5mm， 0-1’＝0-2’＝36.5mm；01-2＝01-3＝38mm，
01-2’＝01-3’＝30mm；02-3＝02-4＝35mm； 02-3’＝02-4’＝30.5mm；
03-1＝03-4＝30mm； 03-1’＝03-4’＝25mm。
This test block is by computerized mapping, numerically-controlled machine line cutting processing.
Claims (3)
1. special-purpose test block of channel bend UT (Ultrasonic Testing), it is characterized in that it is shaped as column (1), the irregular figure that its xsect is joined in proper order and formed by the fan-shaped pipeline section xsect external arc of two or 2 above different sizes, every kind of specification pipeline section middle part is equipped with line cutting groove structure (3) on inside and outside wall, the degree of depth of cutting groove structure (3) is along radial direction, and length is along the axis direction of column.
2. the special-purpose test block of a kind of channel bend UT (Ultrasonic Testing) according to claim 1, it is characterized in that described fan-shaped be more than or equal to 1/4 fan-shaped.
3. the special-purpose test block of a kind of channel bend UT (Ultrasonic Testing) according to claim 1 is characterized in that the line cutting groove of described cutting groove structure (3) for wide 0.1mm, dark 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201039022U CN201464434U (en) | 2009-07-28 | 2009-07-28 | Special test block for ultrasonic defect detection pipe bend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201039022U CN201464434U (en) | 2009-07-28 | 2009-07-28 | Special test block for ultrasonic defect detection pipe bend |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464434U true CN201464434U (en) | 2010-05-12 |
Family
ID=42391784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201039022U Expired - Fee Related CN201464434U (en) | 2009-07-28 | 2009-07-28 | Special test block for ultrasonic defect detection pipe bend |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201464434U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940904A (en) * | 2014-04-11 | 2014-07-23 | 南车戚墅堰机车有限公司 | Ultrasonic flaw detection method for fatigue cracks on inner surface of eccentric long hole |
| CN105116057A (en) * | 2015-09-18 | 2015-12-02 | 安徽省特种设备检测院 | Ultrasonic probe for detecting rolling defects of small-bore pipes and test block used with ultrasonic probe |
| CN106645433A (en) * | 2016-12-12 | 2017-05-10 | 北京理工大学 | Three-dimensional calibration test block for ultrasonic automatic detection system |
| CN109030132A (en) * | 2018-06-14 | 2018-12-18 | 国网安徽省电力有限公司电力科学研究院 | A kind of creep impairment reference block preparation method, damage detecting method and system |
-
2009
- 2009-07-28 CN CN2009201039022U patent/CN201464434U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940904A (en) * | 2014-04-11 | 2014-07-23 | 南车戚墅堰机车有限公司 | Ultrasonic flaw detection method for fatigue cracks on inner surface of eccentric long hole |
| CN105116057A (en) * | 2015-09-18 | 2015-12-02 | 安徽省特种设备检测院 | Ultrasonic probe for detecting rolling defects of small-bore pipes and test block used with ultrasonic probe |
| CN106645433A (en) * | 2016-12-12 | 2017-05-10 | 北京理工大学 | Three-dimensional calibration test block for ultrasonic automatic detection system |
| CN109030132A (en) * | 2018-06-14 | 2018-12-18 | 国网安徽省电力有限公司电力科学研究院 | A kind of creep impairment reference block preparation method, damage detecting method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hebei Electric Power Construction & Adjustment Research Institute Assignor: Hebei Electric Power Research Institute Contract record no.: 2011130000014 Denomination of utility model: Special test block for ultrasonic defect detection pipe bend Granted publication date: 20100512 License type: Exclusive License Record date: 20110110 |
|
| ASS | Succession or assignment of patent right |
Owner name: HEBEI ELECTRIC POWER CORPORATION ELECTRIC POWER RE Free format text: FORMER OWNER: HEBEI ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20130320 Owner name: STATE ELECTRIC NET CROP. HEBEI ELECTRIC POWER CONS Effective date: 20130320 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130320 Address after: 050021 Shijiazhuang Province, Yuhua Province Sports street, South Street, No. 238, No. Patentee after: Electric Power Research Institute of Hebei Electric Power Corporation Patentee after: State Grid Corporation of China Patentee after: Hebei Electric Power Construction & Adjustment Research Institute Address before: 050021 No. 238 South Sports street, Hebei, Shijiazhuang Patentee before: Hebei Electric Power Research Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20150728 |
|
| EXPY | Termination of patent right or utility model |