CN211148538U - Novel falcate test block - Google Patents
Novel falcate test block Download PDFInfo
- Publication number
- CN211148538U CN211148538U CN201921902062.6U CN201921902062U CN211148538U CN 211148538 U CN211148538 U CN 211148538U CN 201921902062 U CN201921902062 U CN 201921902062U CN 211148538 U CN211148538 U CN 211148538U
- Authority
- CN
- China
- Prior art keywords
- test block
- novel
- circular arc
- falcate
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses a novel falcate test block, novel falcate test block's longitudinal section is including first circular arc (1), second circular arc (3), second line segment (4) and third circular arc (5) that end to end in proper order, the radius of first circular arc (1) is R, the radius of second circular arc (3) and third circular arc (5) is R, the centre of a circle of first circular arc (1) is O' point, the centre of a circle of second circular arc (3) and third circular arc (5) is O point, O point is located on first circular arc (1), the O point department of novel falcate test block is provided with rectangle groove (8). The utility model discloses a novel falcate test block simple structure can be markd circumference oblique detection concave surface forging incident point, sound velocity and zero point, utilizes the utility model discloses an instrument and probe parameter that the spill contrast test block was markd have satisfied the accurate calibration purpose of instrument, more are favorable to the ultrasonic defect location of concave surface forging to detect a flaw.
Description
Technical Field
The utility model belongs to the precision positioning field of concave curved surface class forging, concretely relates to novel falcate test block.
Background
The main standard test blocks of the calibration work of the ultrasonic flaw detector and the probe are a V1(IIW1) ship-shaped test block and a V2(IIW2) ox horn test block, the functions of the test blocks are mainly horizontal linearity, vertical linearity, dynamic range, sensitivity allowance, resolution, blind area, incident point of the probe, refraction angle and the like, and the detection surface of the probe is generally a plane. The novel crescent test block and the ship-shaped test block (or the ox horn test block) have basically the same function, but the detection surface of the probe is a curved surface. The shape of the workpiece surface is generally a plane and a curved surface, the plane is used for flaw detection work of the detection surface, and instruments and probes of the workpiece surface are calibrated into a ship-shaped test block and a ox horn test block; the concave curved surface is used for flaw detection of a detection surface, and instruments and probes of the concave curved surface are calibrated without detection test blocks in the world.
The ultrasonic circumferential oblique detection defects of the concave curved surface forging are accurately positioned, and no standard test block is debugged internationally. How to determine the incident point, the scanning speed and the zero point of the detection of the concave curved surface forging becomes a great problem in the field of nondestructive detection. The precision positioning of the defects cannot be guaranteed, and the existing reference blocks cannot meet the requirements of calibration work of an incidence point, speed and a zero point.
Therefore, a new reference block is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model discloses to the contrast test block among the prior art all can't satisfy the defect of incidence point, scanning speed and zero point demarcation, provide one kind and can carry out the novel falcate test block of demarcation to oblique detection concave surface forging incidence point, sound velocity and zero point.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a novel falcate test block adopts following technical scheme:
a novel falcate test block is characterized in that the longitudinal section of the novel falcate test block comprises a first circular arc (1), a second circular arc (3), a second line segment (4) and a third circular arc (5) which are sequentially connected end to end, the radius of the first circular arc (1) is R, the radii of the second circular arc (3) and the third circular arc (5) are R, the circle center of the first circular arc (1) is an O 'point, the circle centers of the second circular arc (3) and the third circular arc (5) are O points, the O points are located on the first circular arc (1), the O' points are located above the O points, and rectangular scribed lines (8) are arranged at the O points of the novel falcate test block;
the second arc (3) is connected with one end of the first arc (1) through the first line segment (2);
the rectangular scribing line (8) is arranged at one end of the novel falcate test block, and arc length scribing lines are arranged on two sides of the point O.
Preferably, the device further comprises a third line segment (6), and the third circular arc (5) is connected with the other end of the first circular arc (1) through the third line segment (6).
Preferably, the first line segment and the third line segment are arranged in parallel.
Preferably, a straight line passing through the O' point and the O point is perpendicular to the second line segment.
Preferably, R ═ 2R.
Preferably, the length of the second line segment is 2 r/5. The utility model discloses in, it is preferred, R2R, the length of second line segment is 2R 5, novel falcate test block includes the polylith test block of following specification: r is 25mm, 50mm, 75mm, 100mm, 125mm, or the like.
Preferably, arc length scribed lines are arranged on two sides of the point O. The moving distance of the ultrasonic probe is convenient to observe.
Preferably, the size and the shape of the longitudinal section of each part of the novel meniscus test block are the same.
Preferably, the distance between the two end faces of the novel falcate test block is the thickness of the novel falcate test block, and the thickness of the novel falcate test block is more than or equal to 25 mm. The thickness of the novel crescent moon test block in the utility model is 25mm +/-0.1 mm or 50mm +/-0.1 mm.
Preferably, the rectangular reticle is arranged at one end or two ends of the novel meniscus test block.
Has the advantages that: the utility model discloses a novel falcate test block simple structure can be markd circumference oblique detection concave surface forging incident point, sound velocity and zero point, utilizes the utility model discloses an instrument and probe parameter that the spill contrast test block was markd have satisfied the accurate calibration purpose of instrument, more are favorable to the ultrasonic defect location of concave surface forging to detect a flaw.
Drawings
Fig. 1 is a front view of the meniscus test block of the present invention;
fig. 2 is a left side view of the meniscus test block of the present invention;
fig. 3 is a schematic view of the meniscus test block of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-3, the utility model discloses a novel falcate test block, novel falcate test block's longitudinal section is including first circular arc 1, second circular arc 3, second line segment 4 and third circular arc 5 that end to end in proper order, and the radius of first circular arc 1 is R, and the radius of second circular arc 3 and third circular arc 5 is R, and the centre of a circle of first circular arc 1 is O ' point, and the centre of a circle of second circular arc 3 and third circular arc 5 is O point, and the O point is located first circular arc 1, and the O ' point is located the top of O point, and the O point department of novel falcate test block is provided with groove rectangle 8.
Preferably, the device further comprises a first line segment 2 and a third line segment 6, wherein the second circular arc 3 is connected with one end of the first circular arc 1 through the first line segment 2, and the third circular arc 5 is connected with the other end of the first circular arc 1 through the third line segment 6.
Preferably, the first line segment 2 and the third line segment 6 are arranged in parallel.
Preferably, a straight line passing through the points O' and O is perpendicular to the second line segment 4.
Preferably, R ═ 2R.
Preferably, the length of the second line segment 4 is 2 r/5. The utility model discloses in, preferred, R2R, the length of second line section 4 is 2R 5, and novel falcate test block includes the polylith test block of following specification: r is 25mm, 50mm, 75mm, 100mm or 125 mm.
Preferably, arc length scribed lines are arranged on two sides of the point O. The moving distance of the ultrasonic probe is convenient to observe. The arc length scribed lines are scribed left and right according to the millimeter precision, and the scribed lines are generally scribed more than 15.
Preferably, the size and the shape of the longitudinal section of each part of the novel meniscus test block are the same.
Preferably, the distance between two end faces of the novel falcate test block is the thickness of the novel falcate test block, and the thickness of the novel falcate test block is more than or equal to 25 mm. The thickness of the novel crescent moon test block in the utility model is 25mm +/-0.1 mm or 50mm +/-0.1 mm.
Preferably, a rectangular reticle 8 is provided at one or both ends of the novel meniscus test block.
The utility model discloses a novel falcate test block simple structure can be markd circumference oblique detection concave surface forging incident point, sound velocity and zero point, utilizes the utility model discloses an instrument and probe parameter that the spill contrast test block was markd have satisfied the accurate calibration purpose of instrument, more are favorable to the ultrasonic defect location of concave surface forging to detect a flaw.
The manufacturing steps are as follows: the longitudinal section of the novel falcate test block is formed by combining intersecting parts by taking the point O as the center of a circle and the radius R as the center of a circle, and then taking the point O' as the center of a circle and the radius R as the center of a circle, and the test structure is formed by a chord AB with the radius R, wherein the chord length of the chord AB is equal to 2R/5, and the chord arc combination is removed. The novel falcate test block is in a structure from a structure (1) to a structure (2).
Example 1
The incidence point, sound velocity and zero point calibration reference block of the concave curved surface forge piece is called as a novel falcate test block, the thickness of the novel falcate test block is equal to 1' (25mm), the width of the novel falcate test block is an intersected span of two circles, and the height of the novel falcate test block is r minus the chord arc height. The vicinity of point O is made as 25mm lines on the left and right, one line at 1mm intervals, the long lines being 0, 5, 10, 15, 20, 25 and the short lines being the other lines, as shown in fig. 3.
1. The probe with the radius r of the convex surface moves left and right at the point O, the reflected wave of only one point is strongest, and the corresponding position point of the reticle and the front end face of the probe is measured, namely the front edge of the probe.
2. The probe with the radius r of the convex surface moves left and right at the point O, the first reflected wave is adjusted to the strongest position (the depth is r), the second reflected wave (the depth is 2r) appears in the compression depth, and the sound velocity and the zero point calibration can be carried out.
Comparison test block material: the technical indexes of the reference block need to meet the requirements of GB/T11259 and ASTM E428 standards.
The utility model discloses the principle: in order to better ensure the precision positioning of the horizontal, vertical and sound path of the oblique incidence ultrasonic flaw detection in the circumferential direction of the concave curved surface forge piece or the hollow forge piece, a novel falcate test block is designed, and the detection precision positioning of the oblique incidence of the concave curved surface forge piece is achieved by firstly calibrating the incidence point of a probe, simultaneously calculating the ultrasonic reflection sound path S1 which is r and the ultrasonic reflection sound path S2 which is 2r, and then calibrating the speed and the zero point of the probe.
The utility model discloses showing the accurate positioning who has improved ultrasonic wave circumference oblique incidence defect, having improved the level that concave curved surface forging ultrasonic wave circumference oblique incidence detected greatly, can cooperate with the novel falcate test block of the poor series of various circular arc radius 50mm simultaneously, realize the ultrasonic inspection's of the vertical defect of concave curved surface forging pinpoint. Utilize the utility model discloses an instrument and probe parameter that spill reference test block was markd have satisfied the accurate calibration purpose of instrument, more are favorable to the ultrasonic defect location of concave curved surface forging to detect a flaw.
The defects are accurately positioned by utilizing the ultrasonic circumferential oblique detection, the defect positions of the concave curved surface forging can be effectively judged, the manufacturing process of judging whether the subsequent process is processed or not or judging waste is facilitated, and the potential and the advantages of the flaw detection method are fully exerted.
Claims (10)
1. A novel falcate test block is characterized in that: the novel falcate test block comprises a longitudinal section, a longitudinal section and a longitudinal section, wherein the longitudinal section comprises a first circular arc (1), a second circular arc (3), a second line segment (4) and a third circular arc (5) which are sequentially connected end to end, the radius of the first circular arc (1) is R, the radii of the second circular arc (3) and the third circular arc (5) are R, the circle center of the first circular arc (1) is an O 'point, the circle centers of the second circular arc (3) and the third circular arc (5) are O points, the O points are located on the first circular arc (1), the O' points are located above the O points, and rectangular scribed lines (8) are arranged at the O points of the novel falcate test block;
the second arc (3) is connected with one end of the first arc (1) through the first line segment (2);
the rectangular scribing line (8) is arranged at one end of the novel falcate test block, and arc length scribing lines are arranged on two sides of the point O.
2. The novel meniscus test block of claim 1, wherein: the three-dimensional arc-shaped lamp is characterized by further comprising a third line segment (6), and the third arc (5) is connected with the other end of the first arc (1) through the third line segment (6).
3. The novel meniscus test block of claim 2, wherein: the first line segment (2) and the third line segment (6) are arranged in parallel.
4. The novel meniscus test block of claim 1, wherein: a straight line passing through the points O' and O is perpendicular to the second line segment (4).
5. The novel meniscus test block of claim 1, wherein: r ═ 2R.
6. The novel meniscus test block of claim 1, wherein: the length of the second line segment (4) is 2 r/5.
7. The novel meniscus test block of claim 1, wherein: the size and the shape of the longitudinal section of each part of the novel falcate test block are the same.
8. The novel meniscus test block of claim 1, wherein: the distance between two end faces of the novel falcate test block is equal to the thickness of the novel falcate test block, and the thickness of the novel falcate test block is more than or equal to 25 mm.
9. The novel meniscus test block of claim 1, wherein: the rectangular scribed lines (8) are arranged at two ends of the novel falcate test block.
10. The novel meniscus test block of claim 1, wherein: the depth of the rectangular scribed line is 3mm, and the length of the rectangular scribed line is 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921902062.6U CN211148538U (en) | 2019-11-06 | 2019-11-06 | Novel falcate test block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921902062.6U CN211148538U (en) | 2019-11-06 | 2019-11-06 | Novel falcate test block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211148538U true CN211148538U (en) | 2020-07-31 |
Family
ID=71772387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921902062.6U Active CN211148538U (en) | 2019-11-06 | 2019-11-06 | Novel falcate test block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211148538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684014A (en) * | 2020-12-08 | 2021-04-20 | 南京迪威尔高端制造股份有限公司 | Cup-shaped test block |
-
2019
- 2019-11-06 CN CN201921902062.6U patent/CN211148538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684014A (en) * | 2020-12-08 | 2021-04-20 | 南京迪威尔高端制造股份有限公司 | Cup-shaped test block |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Funck et al. | Measuring surface roughness on wood: a comparison of laser-scatter and stylus-tracing approaches | |
| CN103954695B (en) | A kind of heel test block | |
| CN109374755B (en) | Ultrasonic detection method for stainless steel oil pipe weld joint and standard test block | |
| WO2021082587A1 (en) | Bird-shaped test block | |
| CN211148538U (en) | Novel falcate test block | |
| JP2002048773A (en) | Calibration test piece for ultrasonic inspection of rail welded part | |
| JP2004333387A (en) | Ultrasonic inspection method for welded part | |
| CN212722741U (en) | TOFD multi-blind-area inspection composite test block | |
| CN211669138U (en) | Novel bowl-shaped test block | |
| CN108982676A (en) | A kind of spill test block | |
| CN212780664U (en) | Novel drum-shaped test block | |
| CN110763770A (en) | Drum-shaped test block | |
| CN110763769A (en) | Crescent test block | |
| CN211122697U (en) | Multifunctional bird-shaped test block | |
| US11366084B2 (en) | Ultrasonic flaw detector test block | |
| CN211669137U (en) | Multifunctional fish-shaped test block | |
| CN209132217U (en) | A kind of new type ultrasonic detection test block | |
| CN209014521U (en) | Spill test block | |
| CN111024826A (en) | Bowl-shaped test block | |
| CN203894200U (en) | Reference block for ultrasonic detection of nickel base alloy weld | |
| CN111089905A (en) | Fish-shaped test block | |
| CN111413412B (en) | Method for measuring refraction angle of ultrasonic probe | |
| CN211528291U (en) | L-shaped steel ultrasonic detection reference block | |
| CN212134587U (en) | Test block for measuring relation between aluminum alloy transverse wave sound path and probe incident point error | |
| CN111413413B (en) | Test block for measuring refraction angle of ultrasonic probe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |