CN209745888U - chain ring phased array device of detecting a flaw's check-up test block - Google Patents
chain ring phased array device of detecting a flaw's check-up test block Download PDFInfo
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- CN209745888U CN209745888U CN201822054737.8U CN201822054737U CN209745888U CN 209745888 U CN209745888 U CN 209745888U CN 201822054737 U CN201822054737 U CN 201822054737U CN 209745888 U CN209745888 U CN 209745888U
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Abstract
The utility model provides a chain ring phased array inspection device's check-up test block which characterized in that: the device comprises a calibration test block a for sensitivity calibration of surface or near-surface defects and a calibration test block b for sensitivity calibration of subsurface and internal defects; a hole Q is formed in the center of the end face a of the checking test block a; arc grooves a and b are symmetrically arranged along the circumference of the end surface a in the horizontal direction; arc grooves c and d are symmetrically arranged along the circumference of the vertical direction; the hole A, the hole B, the hole C and the hole D on the end face B of the checking test block B are arranged on the same circumference, and the hole E is arranged in the center of the end face a; the utility model has simple structure, can establish the sensitivity of each area to sound waves according to the calibration test block a and the calibration test block b respectively, and determines the corresponding dB number through sensitivity calibration; convenient to use is swift, and the accuracy is high, effectively improves work efficiency.
Description
Technical Field
the utility model relates to a field of check-up test block especially relates to a chain ring phased array device of detecting a flaw's check-up test block.
Background
The marine mooring chain is widely used for large marine engineering structures, and is a life chain for ensuring safe use under severe marine working conditions. As marine engineering moves to deep sea, the performance of mooring chains is increasingly required by various facilities, including the surface and internal quality of the products.
in the traditional ultrasonic flaw detection method, an inclined probe needs to be placed on two sides of a welding seam to scan back and forth in a zigzag manner when a chain ring is detected, but the method still has the problems of weak echo and insensitive signal receiving when detecting plane-type defects and near-surface defects in flash welding seams. The sensitivity of scanning the interior of the flash weld and the accuracy of detecting the defect can be improved by using a phased array technology, but the premise is that the sensitivity of each area to sound waves needs to be established according to a calibration test block, and the corresponding dB number is determined through sensitivity calibration; the problem to be solved is how to build the calibration block.
Disclosure of Invention
the utility model aims at providing a check test block of chain ring phased array inspection device, simple structure, check test block a is used for the sensitivity calibration of surface or nearly surface defect, check test block b is used for the sensitivity calibration of subsurface and internal defect; the technical problem is solved.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides a chain ring phased array inspection device's check-up test block which characterized in that: the device comprises a calibration test block a for sensitivity calibration of surface or near-surface defects and a calibration test block b for sensitivity calibration of subsurface and internal defects; the checking test block a comprises a cylindrical straight line section and a semicircular arc section, the end face a of the checking test block a is circular, and a hole Q is formed in the center of the end face a; arc grooves a and b are symmetrically arranged along the circumference of the end surface a in the horizontal direction; the vertical direction of terminal surface a is provided with arc recess c along its circumference symmetry, and arc recess d.
Preferably: the diameter of the hole Q is set to be d1, and d1 is 8 mm; the depth of the hole Q was set to h1 and h1 was 50 mm.
Preferably: the checking test block B comprises a cylindrical straight-line section and a semicircular arc section, the end face B of the checking test block B is circular, five circular holes are formed in the end face B, the hole A, the hole B, the hole C and the hole D are arranged on the same circumference, and the distance between the center positions of the hole A, the hole B, the hole C and the hole D and the edge of the end face B is set to be L; the hole E is provided at the center of the end face b.
Preferably: the diameter of the hole A is set to be d2, and the depth is h 2; hole B is set to d3 in diameter and h3 in depth; hole C is set to d4 in diameter and h4 in depth; hole D is set to D5 in diameter and h5 in depth; d2 is equal to d4 and is 5 mm; h2 is equal to h4 and is 40 mm; d3 is equal to d5 and is 5 mm; h3 is equal to h5 and is 60 mm.
Preferably: the diameter of the hole E is set as d6, and the depth is set as h 6; d6 is 8mm and h6 is 50 mm.
the utility model has the advantages that; a chain link phased array inspection device's check-up test block compares with traditional structure: the end face a of the checking test block a is circular, and a hole Q is formed in the center of the end face a; arc grooves a and b are symmetrically arranged along the circumference of the end surface a in the horizontal direction; arc grooves c and d are symmetrically arranged along the circumference of the end surface a in the vertical direction; sensitivity calibration for surface or near-surface defects; five circular holes are formed in the end face B of the checking test block B, wherein the hole A, the hole B, the hole C and the hole D are arranged on the same circumference, and the distance between the center positions of the hole A, the hole B, the hole C and the hole D and the edge of the end face a is set to be L; the hole E is arranged in the center of the end face a; sensitivity calibration for subsurface and internal defects; the utility model has simple structure, can establish the sensitivity of each area to sound waves according to the calibration test block a and the calibration test block b respectively, and determines the corresponding dB number through sensitivity calibration; convenient and fast, the accuracy is high, effectively improves work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a calibration test block a of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
fig. 3 is a schematic structural diagram of the calibration test block b of the present invention;
Fig. 4 is a cross-sectional view taken along line B-B of fig. 3 in accordance with the present invention;
In the figure: 1. checking a test block a; 2. an arc-shaped groove a; 3. an arc-shaped groove b; 4. an arc-shaped groove c; 5. an arc-shaped groove d; 6. a hole Q; 7. checking a test block b; 8. a hole A; 9. a hole B; 10. a hole C; 11. a hole D; 12. and (E) a hole E.
Detailed Description
in order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
In the drawings: the utility model provides a chain ring phased array inspection device's check-up test block which characterized in that: the device comprises a verification test block a1 for sensitivity calibration of surface or near-surface defects and a verification test block b2 for sensitivity calibration of subsurface and internal defects; the verifying test block a1 comprises a cylindrical straight line section and a semicircular arc section, the end face a1-1 of the verifying test block a is circular, and the center of the end face a1-1 is provided with a hole Q6; the horizontal direction of the end face a1-1 is symmetrically provided with an arc groove a2 and an arc groove b3 along the circumference; the end surface a1-1 is symmetrically provided with an arc-shaped groove c4 and an arc-shaped groove d5 along the circumference thereof in the vertical direction.
The diameter of the hole Q6 is set to be d1, and d1 is 8 mm; the depth of the hole Q6 was set to h1 and h1 was 50 mm.
the checking test block B7 comprises a cylindrical straight line section and a semicircular arc section, the end face B (7-1) of the checking test block B7 is circular, five circular holes are formed in the end face B7-1, the hole A8, the hole B9, the hole C10 and the hole D11 are arranged on the same circumference, and the distance between the center positions of the hole A8, the hole B9, the hole C10 and the hole D11 and the edge of the end face B7-1 is set to be L; the hole E12 is provided at the center of the end face b 7-1.
The diameter of the hole A8 is set to be d2, and the depth is h 2; hole B9 was set at d3 in diameter and h3 in depth; hole C10 was set to a diameter of d4 and a depth of h 4; hole D11 was set at D5 in diameter and h5 in depth; d2 is equal to d4 and is 5 mm; h2 is equal to h4 and is 40 mm; d3 is equal to d5 and is 5 mm; h3 is equal to h5 and is 60mm, the diameter of the hole E12 is set as d6, and the depth is set as h 6; d6 is 8mm and h6 is 50 mm.
The utility model discloses a concrete implementation: when sensitivity verification is carried out, a phased array probe is used for scanning grooves and flat bottom holes on the reference test block, reflected waves are adjusted to 70-80% of the full-screen wave height, corresponding gain dB numbers are obtained, and then compensation of 5-15 dB is added when actual products are scanned, so that defect assessment in corresponding areas can be carried out.
the method comprises the following specific steps: (a) creating a file on PAUT flaw detection equipment;
(b) In the examination area, the probe applies the combined motion of raster scanning and oblique scanning, and selects a proper angle range to cover the whole cross section;
(c) Placing the phased array probe at a position which is at a distance D from the axis of the welding line, namely the distance between the front end of the phased array and the theoretical welding axis is D;
(d) Scanning the hole E by a PA probe in the 0-degree direction to obtain the corresponding amplitude gain of 80% FSH of the hole E;
(e) Scanning the hole A by a PA probe in the direction of 0 degrees to obtain the corresponding amplitude gain of 80% FSH;
(f) Scanning the hole C by a PA probe in the direction of 0 degrees to obtain the corresponding amplitude gain of 80% FSH;
(g) Scanning the hole D by a PA probe in the 90-degree direction to obtain the corresponding amplitude gain of 80% FSH of the hole D;
(h) scanning the hole B by a PA probe in the direction of 270 degrees to obtain the corresponding amplitude gain of 80% FSH;
(i) Scanning the arc-shaped groove c to obtain the corresponding amplitude gain of 80% FSH;
(j) scanning the arc-shaped groove a to obtain the corresponding amplitude gain of 80% FSH of the arc-shaped groove a;
(k) scanning the arc-shaped groove d to obtain the corresponding amplitude gain of 80% FSH;
(l) Scanning the arc-shaped groove b to obtain the corresponding amplitude gain of 80% FSH;
(m) recording the amplitude gain corresponding to each region;
(n) saving the settings in the device.
the foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (5)
1. The utility model provides a chain ring phased array inspection device's check-up test block which characterized in that: the device comprises a verification test block a (1) for sensitivity calibration of surface or near-surface defects and a verification test block b (7) for sensitivity calibration of subsurface and internal defects; the checking test block a (1) comprises a cylindrical straight line section and a semicircular arc section, the end face a (1-1) of the checking test block a is circular, and a hole Q (6) is formed in the center of the end face a (1-1); arc-shaped grooves a (2) and arc-shaped grooves b (3) are symmetrically arranged along the circumference of the end surface a (1-1) in the horizontal direction; arc grooves c (4) and d (5) are symmetrically arranged along the circumference of the end face a (1-1) in the vertical direction.
2. The proof test block of a chain link phased array flaw detection apparatus according to claim 1, characterized in that: the diameter of the hole Q (6) is set to be d1, and d1 is 8 mm; the depth of the hole Q (6) was set to h1, and h1 was 50 mm.
3. the proof test block of a chain link phased array flaw detection apparatus according to claim 1, characterized in that: the checking test block B (7) comprises a cylindrical straight line section and a semicircular arc section, the end face B (7-1) of the checking test block B is circular, five circular holes are formed in the end face B (7-1), the hole A (8), the hole B (9), the hole C (10) and the hole D (11) are arranged on the same circumference, and the distance between the center positions of the hole A (8), the hole B (9), the hole C (10) and the hole D (11) and the edge of the end face B (7-1) is set to be L; the hole E (12) is provided at the center of the end face b (7-1).
4. the proof test block of the chain ring phased array flaw detection apparatus according to claim 3, characterized in that: the diameter of the hole A (8) is set to be d2, and the depth is h 2; hole B (9) is set to d3 in diameter and h3 in depth; hole C (10) diameter is set at d4 and depth is h 4; hole D (11) is set to D5 in diameter and h5 in depth; d2 is equal to d4 and is 5 mm; h2 is equal to h4 and is 40 mm; d3 is equal to d5 and is 5 mm; h3 is equal to h5 and is 60 mm.
5. The proof test block of the chain ring phased array flaw detection apparatus according to claim 3, characterized in that: the diameter of the hole E (12) is set as d6, and the depth is set as h 6; d6 is 8mm and h6 is 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822054737.8U CN209745888U (en) | 2018-12-08 | 2018-12-08 | chain ring phased array device of detecting a flaw's check-up test block |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822054737.8U CN209745888U (en) | 2018-12-08 | 2018-12-08 | chain ring phased array device of detecting a flaw's check-up test block |
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| CN209745888U true CN209745888U (en) | 2019-12-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813808A (en) * | 2018-12-08 | 2019-05-28 | 江苏亚星锚链股份有限公司 | A kind of verification of chain link phased array failure detector is fast and the test method of sensitivity |
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2018
- 2018-12-08 CN CN201822054737.8U patent/CN209745888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813808A (en) * | 2018-12-08 | 2019-05-28 | 江苏亚星锚链股份有限公司 | A kind of verification of chain link phased array failure detector is fast and the test method of sensitivity |
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