CN204719008U - Compressional wave sensitivity step bar - Google Patents
Compressional wave sensitivity step bar Download PDFInfo
- Publication number
- CN204719008U CN204719008U CN201520408107.XU CN201520408107U CN204719008U CN 204719008 U CN204719008 U CN 204719008U CN 201520408107 U CN201520408107 U CN 201520408107U CN 204719008 U CN204719008 U CN 204719008U
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- China
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- bottom hole
- flat
- detection faces
- step surface
- mother metal
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Wave sensitivity step bar, by mother metal, flat-bottom hole, step surface, detection faces forms, it is characterized in that institute's quality of parent material is even tissue, acoustics isotropy, grain size is No. 20 carbon constructional quality steels of 7 ~ 8 grades, it is the step of 2.5mm ~ 5mm that described mother metal upper surface is provided with 5 height, each step being provided with diameter is φ 2mm ~ φ 3mm, the degree of depth is the flat-bottom hole of 15mm, described flat-bottom hole is perpendicular to step surface, institute's art detection faces is the symmetrical side plane of step surface, described flat-bottom hole bottom surface is parallel to detection faces, flat-bottom hole bottom surface roughness is Ra=3.2 μm, the beneficial effects of the utility model are under the prerequisite meeting act.std, test block structure is simple, easy to operate, applied widely, achieve weld seam by being thinned to thick comprehensive scanning, can be faster, better, realize the checking of the demarcation of instrument and the Detection capability to instrument and equipment more intuitively.
Description
Technical field
The utility model relates to technical field of nondestructive testing, concrete a kind of compressional wave sensitivity step bar.
Background technology
Dynamic Non-Destruction Measurement is widely used in the industries such as Aero-Space, nuclear power, special equipment, oil, due to the develop rapidly of national economy, has also driven the development of Non-Destructive Testing industry.Flat-bottom hole is used for as reference reflector the accreditation that the setting of Ultrasonic Detection sensitivity obtains domestic and international every profession and trade expert for a long time, but still there is no at present the compressional wave sensitivity step bar of specification, be therefore badly in need of design a kind of not only conformed to current standards require but also can meet every profession and trade handling characteristics compressional wave sensitivity step bar to meet market user demand.
Summary of the invention
For solving the problem, the utility model provides a kind of reference block not only having met new standard requirement but also met every profession and trade handling characteristics.
The utility model compressional wave sensitivity step bar, by mother metal, flat-bottom hole, step surface, detection faces forms, it is characterized in that institute's quality of parent material is even tissue, acoustics isotropy, grain size is No. 20 carbon constructional quality steels of 7 ~ 8 grades, it is the step of 2.5mm ~ 5mm that described mother metal upper surface is provided with 5 height, each step being provided with diameter is φ 2mm ~ φ 3mm, the degree of depth is the flat-bottom hole of 15mm, described flat-bottom hole is perpendicular to step surface, institute's art detection faces is the symmetrical side plane of step surface, described flat-bottom hole bottom surface is parallel to detection faces, flat-bottom hole bottom surface roughness is Ra=3.2 μm.
Described step surface, is characterized in that described step surface width is 20mm, step surface and test block surface depth of parallelism < 0.05mm.
Described flat-bottom hole, it is characterized in that the verticality of described flat-bottom hole is ± 0.05mm, the surfaceness of described step surface is Ra=3.2 μm.
The beneficial effects of the utility model are under the prerequisite meeting act.std, test block structure is simple, easy to operate, applied widely, achieving weld seam by being thinned to thick comprehensive scanning, the checking of the demarcation of instrument and the Detection capability to instrument and equipment can be realized sooner, better, more intuitively.
accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model, in accompanying drawing:
1. mother metal, 2. flat-bottom hole, 3. step surface, 4..
embodiment:
Specific embodiments of the present utility model is: described compressional wave sensitivity step bar, by mother metal 1, flat-bottom hole 2, step surface 3, detection faces 4 forms, it is characterized in that institute's mother metal 1 material is even tissue, acoustics isotropy, grain size is No. 20 carbon constructional quality steels of 7 ~ 8 grades, described mother metal 1 upper surface is provided with the step 3 that 5 height are 2.5mm ~ 5mm, each step being provided with diameter is φ 2mm ~ φ 3mm, the degree of depth is the flat-bottom hole 2 of 15mm, described flat-bottom hole 2 is perpendicular to step surface 3, institute's art detection faces 4 is the symmetrical side plane of step surface 3, described flat-bottom hole 2 bottom surface is parallel to detection faces 4, flat-bottom hole 2 bottom surface roughness is Ra=3.2 μm.
Described step surface 3, is characterized in that described step surface 3 width is 20mm, step surface 3 and test block surface depth of parallelism < 0.05mm.
Described flat-bottom hole 2, it is characterized in that the verticality of described flat-bottom hole 2 is ± 0.05mm, the surfaceness of described step surface 3 is Ra=3.2 μm.
During use, normal probe probe is placed in test block detection faces and makes probe acoustic axis line and flat-bottom hole 2 plane perpendicular, all around mobile probe finds out the highest wave reflection position, utilize direct scan and single bounce technique to find out different depth of burial hole successively and reflect most Gao Bo, be linked to be a curve, and being adjusted to all over the screen 80%, sensitivity has set.
The beneficial effects of the utility model are under the prerequisite meeting act.std, test block structure is simple, easy to operate, applied widely, achieve weld seam by being thinned to thick comprehensive scanning, the checking of the demarcation of instrument and the Detection capability to instrument and equipment can be realized sooner, better, more intuitively, complete the scanning of exemplar better, fast and easy inspection can store detection data message again.
Claims (3)
1. compressional wave sensitivity step bar, by mother metal (1), flat-bottom hole (2), step surface (3), detection faces (4) forms, it is characterized in that institute's mother metal (1) material is even tissue, acoustics isotropy, grain size is No. 20 carbon constructional quality steels of 7 ~ 8 grades, described mother metal (1) upper surface is provided with the step (3) that 5 height are 2.5mm ~ 5mm, each step being provided with diameter is φ 2mm ~ φ 3mm, the degree of depth is the flat-bottom hole (2) of 15mm, described flat-bottom hole (2) is perpendicular to step surface (3), institute's art detection faces (4) is the symmetrical side plane of step surface (3), described flat-bottom hole (2) bottom surface is parallel to detection faces (4), flat-bottom hole (2) bottom surface roughness is Ra=3.2 μm.
2. compressional wave sensitivity step bar according to claim 1, is characterized in that described step surface (3) width is 20mm, step surface (3) and test block surface depth of parallelism < 0.05mm.
3. compressional wave sensitivity step bar according to claim 1, it is characterized in that the verticality of described flat-bottom hole (2) is ± 0.05mm, the surfaceness of described step surface (3) is Ra=3.2 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408107.XU CN204719008U (en) | 2015-06-15 | 2015-06-15 | Compressional wave sensitivity step bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520408107.XU CN204719008U (en) | 2015-06-15 | 2015-06-15 | Compressional wave sensitivity step bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204719008U true CN204719008U (en) | 2015-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520408107.XU Expired - Fee Related CN204719008U (en) | 2015-06-15 | 2015-06-15 | Compressional wave sensitivity step bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204719008U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872400A (en) * | 2018-09-07 | 2018-11-23 | 中国电建集团山东电力建设第工程有限公司 | A kind of small diameter pipe welded joint phased array ultrasonic detection reference block |
| CN109521093A (en) * | 2018-11-27 | 2019-03-26 | 中航通飞华南飞机工业有限公司 | A kind of ultrasound contrast test block applied to the detection of big thickness carbon fibre composite |
| CN110389175A (en) * | 2018-04-16 | 2019-10-29 | 上海明华电力技术工程有限公司 | A kind of high temperature valve ultrasound detection reference block |
| CN112782287A (en) * | 2020-12-30 | 2021-05-11 | 西安热工研究院有限公司 | Standard test block and method for rapidly screening coarse grains and fine grains of gas steel bolt |
| CN113619140A (en) * | 2021-07-26 | 2021-11-09 | 东风延锋汽车饰件***有限公司 | Vibration friction welding is exempted from to break and is torn open degree of depth and detect structure |
-
2015
- 2015-06-15 CN CN201520408107.XU patent/CN204719008U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389175A (en) * | 2018-04-16 | 2019-10-29 | 上海明华电力技术工程有限公司 | A kind of high temperature valve ultrasound detection reference block |
| CN108872400A (en) * | 2018-09-07 | 2018-11-23 | 中国电建集团山东电力建设第工程有限公司 | A kind of small diameter pipe welded joint phased array ultrasonic detection reference block |
| CN108872400B (en) * | 2018-09-07 | 2024-04-30 | 中国电建集团山东电力建设第一工程有限公司 | Reference block for phased array ultrasonic detection of small-diameter pipe welding joint |
| CN109521093A (en) * | 2018-11-27 | 2019-03-26 | 中航通飞华南飞机工业有限公司 | A kind of ultrasound contrast test block applied to the detection of big thickness carbon fibre composite |
| CN112782287A (en) * | 2020-12-30 | 2021-05-11 | 西安热工研究院有限公司 | Standard test block and method for rapidly screening coarse grains and fine grains of gas steel bolt |
| CN113619140A (en) * | 2021-07-26 | 2021-11-09 | 东风延锋汽车饰件***有限公司 | Vibration friction welding is exempted from to break and is torn open degree of depth and detect structure |
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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: 20151021 Termination date: 20190615 |