CN104297351B - A kind of test block for measuring ultrasonic wave angle probe refraction angle and measuring method thereof - Google Patents
A kind of test block for measuring ultrasonic wave angle probe refraction angle and measuring method thereof Download PDFInfo
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- CN104297351B CN104297351B CN201410594301.1A CN201410594301A CN104297351B CN 104297351 B CN104297351 B CN 104297351B CN 201410594301 A CN201410594301 A CN 201410594301A CN 104297351 B CN104297351 B CN 104297351B
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Abstract
The present invention relates to a kind of for measuring ultrasonic wave angle probe incidence point and the test block at refraction angle, it is characterized in that: described test block includes a quadrant cylinder, described quadrant cylinder includes the first arc surface, bottom surface, vertical plane and is positioned at the side of before and after both sides, described bottom surface is perpendicular with described vertical plane, and angle index is carved with on the edge of the first arc surface in described side.Ultrasonic test block that the present invention provides and measuring method may be used for the ultrasonic inspection of the axial flaw of the most widely used cylinder longitudinal seam ultrasonic inspection, girth joint, pipeline, bar axial flaw ultrasonic inspection in arc surface oblique probe incidence point and the measurement at refraction angle；The present invention, according to the characteristic of ultrasonic reflections, devises Special test block for cambered surface ultrasonic wave angle probe, and test block profile is simple, easy to use.
Description
Technical field
The present invention relates to a kind of test block measuring ultrasonic wave angle probe refraction angle and measuring method thereof.
Background technology
In the prior art, ultrasonic probe incidence point and refraction angle measuring method is loaded down with trivial details and accuracy is the highest.Such as current commonly used water caltrop reflection method for measuring incidence point, being placed on the water caltrop of test block by the arc surface of probe voussoir, movable probe, point corresponding at test block water caltrop when making water caltrop back wave the highest is Probe index.The measuring method at refraction angle: first one solid cylinder test block of processing, the radius of curvature of test block is identical with workpiece, processes a cross-drilled hole near test block surface.Then probe is placed in test block, movable probe, finds the highest echo of cross-drilled hole, the distance of mensuration Probe index to cross-drilled hole, and through the diameter of incidence point, be now refraction angle through the diameter place straight line of incidence point and incidence point to the angle between the straight line of cross-drilled hole place.Above measuring method needs use measuring instrument and need to calculate and table look-up, and which increases measure error.
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, it is provided that a kind of design and the Special test block of workpiece same curvature and measuring method, improves ultrasonic wave angle probe incidence point, the degree of accuracy of refraction angle measurement, and is easy to execute-in-place.The present invention provides a kind of for measuring ultrasonic wave angle probe incidence point and the test block at refraction angle, described test block includes being a quadrant cylinder, described test block includes the first arc surface, bottom surface, vertical plane and is positioned at the side of before and after both sides, described bottom surface is perpendicular with described vertical plane, and angle index is carved with in described side.
Preferably, the radius of the first described arc surface is
R
, the curvature of described first arc surface is consistent with the curvature of described detected workpiece.Peak at the first arc surface extends rearwardly to form the second arc surface, the second described arc surface and the first arc surface center of circle, radius are identical, described test block also includes a three-arc face, the one end in described three-arc face is connected with the second described arc surface, the other end is connected with described vertical plane, and the center of circle in described three-arc face is positioned at the peak of the first arc surface, and the radius in described three-arc face
r<R
, the side near the peak of described first arc surface is marked with center of circle cutting
O
。
Preferably, the material making that described test block employing is similar to examined workpiece acoustic characteristic, the thickness of described test block is
25mm
。
The present invention also provides for the above-mentioned test block of a kind of use and measures ultrasonic wave angle probe incidence point and refraction angle method, described ultrasonic wave angle probe is placed on the second arc surface, angle probe is moved along described arc surface, the acoustic beam that angle probe is sent is towards the three-arc face of test block, the back wave in three-arc face is adjusted to maximum amplitude, and now angle probe incidence point is in center of circle cutting
O,
Determine angle probe incidence point position, measure the forward position length of incidence point distance angle probe front end, angle probe is made the mark of incidence point position.
Further, angle probe is placed on the first arc surface of the test block identical with examined workpiece curvature, the acoustic beam that angle probe is sent is towards the bottom surface of test block, move along the first described arc surface, bottorm echo is adjusted to maximum amplitude, and angle index value corresponding to described angle probe incidence point position is the refraction angle of described angle probe.
Due to the employing of above technical scheme, the present invention compared with prior art has the advantage that
Ultrasonic test block that the present invention provides and measuring method may be used for the ultrasonic inspection of the axial flaw of the most widely used cylinder longitudinal seam ultrasonic inspection, girth joint, pipeline, bar axial flaw ultrasonic inspection in arc surface oblique probe incidence point and the measurement at refraction angle；The present invention, according to the characteristic of ultrasonic reflections, devises Special test block for cambered surface ultrasonic wave angle probe, and test block profile is simple, easy to use.The present invention utilizes ultrasonic wave to reflect at Special test block cambered surface and processes the cutting of the cambered surface center of circle in test block, it is achieved convenient, carry out the measurement of arc surface oblique probe incidence point exactly.The present invention utilizes ultrasonic wave to reflect at Special test block bottom surface, and processes refraction angle scale in test block, it is achieved carry out the measurement at arc surface oblique probe refraction angle quickly and accurately.The present invention is for the measuring method of cambered surface ultrasonic wave angle probe, it is not necessary to use special measurement instrument, without calculating and tabling look-up, and solves the difficult problem that arc surface oblique probe incidence point and refraction angle are measured well.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Figure
1
Structural representation for a kind of test block for measuring ultrasonic wave angle probe incidence point and refraction angle of the present invention；
Figure
2
For the structural representation of a kind of test block for measuring ultrasonic wave angle probe incidence point and refraction angle of the present invention,
1
, test block；
2
, angle probe.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further details.Should be understood that these embodiments are for the general principle of the present invention, principal character and advantage are described, and the present invention is not limited by the scope of following example.The implementation condition used in embodiment can do adjustment further according to specific requirement, and not marked implementation condition is usually the condition in normal experiment.
Such as figure
1
Shown in, a kind of for measuring ultrasonic wave angle probe incidence point and the test block at refraction angle
1
, described test block
1
It is a quadrant cylinder, described test block
1
Including the first arc surface
BC
, bottom surface
AB
, vertical plane
AC
And it is positioned at the side of before and after both sides, described bottom surface
AB
With described vertical plane
AC
Perpendicular, angle index is carved with in described side.Test block
1
The material similar to examined workpiece acoustic characteristic is used to make, test block
1
Thickness be
25mm
.Test block
1
The first arc surface
BC
Curvature differ with the curvature of examined workpiece and should be less than
10%
.Test block
1
Form near the permanent cutting in side of the first arc surface indicates refraction angle scale.And indicate
30
°、
40
°、
50
°、
60
°、
70
° refraction angle angle value.Part curvature radius is more than
120mm
Test block, angle index spacing is at least
0.5
°, part curvature radius is less than or equal to
120mm
Test block, angle index spacing is
1
°.From the side,
A
It is the center of circle of a circular arc, ∠
BAC
For right angle, test block
1
On scale value be described angle position to the line in the center of circle and vertical plane
AC
Angle.
Being positioned over by ultrasonic wave angle probe on the arc surface of the test block identical with being detected part curvature, acoustic beam is towards test block
1
Bottom surface
AB
, mobile angle probe
2
, by bottom surface
AB
Back wave be adjusted to maximum amplitude, now ultrasonic wave acoustic beam and bottom surface
AB
Perpendicular, angle probe
2
Test block side scale value corresponding to incidence point position be this angle probe
2
Refraction angle.
Such as figure
2
Shown in, for a kind of test block involved by another kind embodiment of the present invention
1
, described test block
1
Including a quadrant cylinder, described test block
1
Including the first arc surface, bottom surface, vertical plane and the side being positioned at before and after both sides, described bottom surface is perpendicular with described vertical plane, and angle index is carved with in described side.The radius of the first arc surface is
R
, the curvature of the first arc surface is consistent with the curvature of detected workpiece.Peak at the first arc surface extends rearwardly to form the second arc surface, the second described arc surface and the first arc surface center of circle, the test block that radius is identical, described
1
Also include a three-arc face, the one end in described three-arc face is connected with the second described arc surface, the other end is connected with described vertical plane, and the center of circle in described three-arc face is positioned at the peak of the first arc surface, and the radius in described three-arc face
r<R
, the side near the peak of described first arc surface is marked with center of circle cutting
O
.Figure
2
Shown test block
1
With figure
1
Shown test block is compared and has been carried out further improvement, described test block
1
The material similar to examined workpiece acoustic characteristic is used to make, described test block
1
Thickness be
25mm
。
Use such as figure
2
Shown test block
1
Carry out angle probe
2
During the measurement at incidence point and refraction angle, angle probe
2
The measurement at incidence point and refraction angle is carried out, by described ultrasonic wave angle probe in the cambered surface of the same side
2
It is placed on the second arc surface, moves angle probe along described arc surface
2
, angle probe
2
The back wave in three-arc face, towards the three-arc face of test block, is adjusted to maximum amplitude by the acoustic beam sent, now angle probe
2
Incidence point is in center of circle cutting
O,
Determine angle probe
2
Incidence point position, measures incidence point distance angle probe
2
The forward position length of front end, at angle probe
2
On make the mark of incidence point position.By angle probe
2
Place the test block identical with examined workpiece curvature
1
The first arc surface on, angle probe
2
The acoustic beam sent, towards the bottom surface of test block, moves along the first described arc surface, and bottorm echo is adjusted to maximum amplitude, described angle probe
2
Angle index value corresponding to incidence point position is described angle probe
2
Refraction angle.
Front and back position of the present invention refer in test block as depicted towards outside paper for front side, arc surface
BC
With vertical plane
AC
The position that two faces are intersected is top.
Above the present invention is described in detail; the explanation of embodiment is only intended to help to understand method and the core concept thereof of the present invention; its object is to allow the personage being familiar with this art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (4)
1. one kind for measuring the test block at ultrasonic wave angle probe refraction angle, it is characterised in that: described test block includes one or four/
One cylinder, described quadrant cylinder includes the first arc surface, bottom surface, vertical plane and is positioned at the side of before and after both sides,
Described bottom surface is perpendicular with described vertical plane, and described bottom surface is the described cylindrical center of circle with the boundary line of vertical plane
Axle, described side is carved with angle index on the edge of the first arc surface,
The radius of the first described arc surface is R, and the radian of described first arc surface is consistent with the radian of examined workpiece, described
Test block also includes second arc surface being connected with described first arc surface, described the second arc surface and first at peak
The arc surface center of circle, radius are identical, and described test block also includes a three-arc face, and the one end in described three-arc face is with described
The second arc surface be connected, the other end is connected with described vertical plane, and the center of circle in described three-arc face is positioned at first
The peak of arc surface, and the radius r < R in described three-arc face, on the side near the peak of described first arc surface
Indicate center of circle cutting O.
A kind of test block for measuring ultrasonic wave angle probe refraction angle the most according to claim 1, it is characterised in that: described
The thickness of test block is 25mm.
3. measure ultrasonic wave angle probe parametric technique according to the test block described in any one of claim 1 ~ 2, it is characterised in that: by institute
The ultrasonic wave angle probe stated is placed on the second arc surface, moves angle probe along described arc surface, the sound that angle probe is sent
The three-arc face of Shu Chaoxiang test block, is adjusted to maximum amplitude by the back wave in three-arc face, now at angle probe incidence point
In center of circle cutting O, determine angle probe incidence point position, measure the forward position length of incidence point distance angle probe front end, at angle probe
On make the mark of incidence point position.
4. use the test block described in claim 3 to measure ultrasonic wave angle probe parametric technique, it is characterised in that: angle probe is placed
On the first arc surface of the test block identical with examined workpiece curvature, the acoustic beam that angle probe is sent is towards the bottom surface of test block, edge
The first described arc surface moves, and bottorm echo is adjusted to maximum amplitude, and described angle probe incidence point position is corresponding
Angle index value is the refraction angle of described angle probe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410594301.1A CN104297351B (en) | 2014-10-29 | 2014-10-29 | A kind of test block for measuring ultrasonic wave angle probe refraction angle and measuring method thereof |
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|---|---|---|---|
| CN201410594301.1A CN104297351B (en) | 2014-10-29 | 2014-10-29 | A kind of test block for measuring ultrasonic wave angle probe refraction angle and measuring method thereof |
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|---|---|
| CN104297351A CN104297351A (en) | 2015-01-21 |
| CN104297351B true CN104297351B (en) | 2016-08-17 |
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| CN106802325B (en) * | 2016-11-28 | 2019-10-25 | 中车齐齐哈尔车辆有限公司 | The test device and detection method of acoustic axis angle of deviation |
| 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 |
| CN109781860B (en) * | 2018-10-31 | 2022-11-04 | 上海船舶工艺研究所(中国船舶集团有限公司第十一研究所) | Reference block and calibration method |
| CN111413413B (en) * | 2019-01-04 | 2023-06-27 | 国电锅炉压力容器检验有限公司 | Test block for measuring refraction angle of ultrasonic probe |
| CN111413412B (en) * | 2019-01-04 | 2023-06-27 | 国电锅炉压力容器检验有限公司 | Method for measuring refraction angle of ultrasonic probe |
| CN110320282A (en) * | 2019-06-27 | 2019-10-11 | 东方电气集团东方锅炉股份有限公司 | Variable-angle ultrasonic probe and pipe circumferential weld transverse defect supersonic detection method |
| CN110763768A (en) * | 2019-10-29 | 2020-02-07 | 南京迪威尔高端制造股份有限公司 | Bird-shaped test block |
| CN110763770A (en) * | 2019-11-06 | 2020-02-07 | 南京迪威尔高端制造股份有限公司 | Drum-shaped test block |
| CN111239261A (en) * | 2019-11-29 | 2020-06-05 | 内蒙古北方重工业集团有限公司 | Method for measuring refraction angle of small-angle probe |
| CN110988127B (en) * | 2019-12-16 | 2022-10-11 | 宝武杰富意特殊钢有限公司 | Signal identification method for detecting defects on surface and near surface of round bar by rotary ultrasonic |
| CN112834620A (en) * | 2020-12-01 | 2021-05-25 | 中广核检测技术有限公司 | Offline ultrasonic nondestructive testing method for PBF additive manufacturing |
| CN113418991A (en) * | 2021-07-05 | 2021-09-21 | 西安热工研究院有限公司 | Reference block and method for determining incident point of circumferential defect detection of pipe fitting |
| CN113960167A (en) * | 2021-10-19 | 2022-01-21 | 中车唐山机车车辆有限公司 | Ultrasonic detection simulator |
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| CN103033566A (en) * | 2012-12-31 | 2013-04-10 | 爱德森（厦门）电子有限公司 | Automatic detecting device for spread angle of ultrasonic probe |
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| US6938457B2 (en) * | 2003-10-08 | 2005-09-06 | General Electric Company | Phased array ultrasonic reference block |
| CN202453330U (en) * | 2011-12-13 | 2012-09-26 | 福建省电力有限公司电力科学研究院 | Pipeline ultrasonic detection reference block |
| CN103454349B (en) * | 2013-09-29 | 2016-04-13 | 宝钢轧辊科技有限责任公司 | Measure the method for Cylinder Surface near surface flaw radial depth and the test block of employing thereof |
| CN103954695B (en) * | 2014-04-23 | 2016-08-24 | 南京迪威尔高端制造股份有限公司 | A kind of heel test block |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103033566A (en) * | 2012-12-31 | 2013-04-10 | 爱德森（厦门）电子有限公司 | Automatic detecting device for spread angle of ultrasonic probe |
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| CN104297351A (en) | 2015-01-21 |
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