CN106404921A - Preparation method of sample for ultrasonic nondestructive detection proficiency testing - Google Patents
Preparation method of sample for ultrasonic nondestructive detection proficiency testing Download PDFInfo
- Publication number
- CN106404921A CN106404921A CN201610743495.6A CN201610743495A CN106404921A CN 106404921 A CN106404921 A CN 106404921A CN 201610743495 A CN201610743495 A CN 201610743495A CN 106404921 A CN106404921 A CN 106404921A
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- China
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- matrix
- foreign body
- sample
- welding
- ultrasonic nondestructive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N2001/2893—Preparing calibration standards
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Belonging to the technical field of ultrasonic nondestructive detection, the invention relates to a preparation method of a sample for ultrasonic nondestructive detection proficiency testing. The invention takes the characteristics of ultrasonic nondestructive detection proficiency testing and sample requirements as the starting point, adopts the ultrasonic detection based principle that defect and matrix have different acoustic characteristic impedances as the basis, puts forward the method of placing a foreign matter in the sample processing process to form an artificial defect in a sample matrix, thus obtaining a sample with artificial defect. The foreign matter placed in the artificial defect making process can be appropriate solid, liquid or gas obviously different from the acoustic characteristic impedance of the matrix. According to the design and preparation method provided by the invention, the sample applicable to ultrasonic nondestructive detection proficiency testing can be obtained.
Description
Technical field
The invention belongs to Ultrasonic Nondestructive technical field, test for Ultrasonic Nondestructive ability particularly to one kind
The preparation method of the sample of card.
Background technology
Field of non destructive testing is CNAS to one of accreditation field of laboratory, and ability is tested
Card is the important technical judging laboratory capabilities, is also the important supplement of laboratory internal quality control.
The wavelength of ultrasound wave is shorter, has preferable directivity.The material of conduct acoustic waves has certain acoustic signature impedance
(acoustic signature impedance=density × velocity of sound), ultrasound wave, in the communication process of medium, has spy in unison when running into another kind
During the interface of the medium levying impedance it may occur that reflection etc. phenomenon, thus being detected.The acoustic signature resistance of defect and surrounding medium
Robust is different to be that ultrasound wave can be used to detect the basis of defect.Ultrasonic Nondestructive is in building, railway traffic, pressure vessel
Workpiece, defect detection in field is widely used, and compared with other detection methods, Ultrasonic Nondestructive has huge facility
The advantages such as property.
Carry out the ability verification of Ultrasonic Nondestructive, be inspection and the weight improving laboratory ultrasound examination ability
Want approach.Design the sample being reasonably used for Ultrasonic Nondestructive proficiency testing, lossless for ultrasound wave for carrying out
The proficiency testing Evaluation Activity of detection field, is significant.
Content of the invention
It is an object of the invention to provide a kind of preparation method of the sample for Ultrasonic Nondestructive proficiency testing.Logical
Cross this method, the internal sample containing artificial defect can be produced, and be suitable as Ultrasonic Nondestructive proficiency testing
Use sample.
The ultimate principle that the ultrasound examination of the present invention is utilized is：Ultrasound wave runs in communication process in media as well and is situated between
Matter can occur the phenomenons such as reflection thus being detected when having the defect of different acoustic signature impedances.According to this principle, select
The acoustic signature impedance of each region is basically identical and solid that have the test surface being adapted as ultrasonic equipment is as making sample
Matrix, then suitable position is inserted the foreign body having certain acoustic signature resistance difference with matrix and is formed and manually lacks in the base
Fall into it is possible to obtain Ultrasonic Nondestructive proficiency testing sample.
The requirement with the feature of Ultrasonic Nondestructive proficiency testing and to sample for the present invention, as starting point, is examined with ultrasound wave
The defect surveying institute's foundation is had based on the principle of different acoustic signature impedances from matrix, proposes using processed in sample preparation
The method inserting foreign body in journey forms artificial defect in sample matrices, obtains the sample with artificial defect.Manufacturing artificial lacks
Falling into inserted foreign body is suitable solid, liquid or the gas having notable difference with the acoustic signature impedance of matrix.Concrete technology
Step is as follows：
(1) select material or workpiece as matrix 1, matrix 1 selects or produces be adapted as ultrasound examination
The region in face.As the region in ultrasound examination face, at least can mark 30mm × 30mm square area in region, and need table
Face smooths, welding splashing, iron filings, grease and other foreign matter, should not cause probe and the contact gap of matrix exceedes
0.5mm.Then insert foreign body 2 in matrix 1.The largest cross-sectional sized of the foreign body 2 as artificial defect inserted in matrix 1
Between 0.5mm～10mm, and and matrix 1 have different acoustic signature impedance (the acoustic signature impedance of foreign body 2 and matrix 1, both
The absolute value of difference be not less than the 5% of acoustic signature impedance smaller), foreign body 2 can be solid, gas or liquid, preparation technology
Upper feasible.
(2) method for posting of foreign body 2 is selected according to the property of matrix 1 and foreign body 2, for example, can select welding midway
Insert the method for foreign body 2 it is also possible to select to make hole and then the method inserting foreign body 2 in matrix 1 in matrix 1, acceptable
Select other manufacture methods.With matrix 1 be welding metal solid, foreign body 2 be can tolerate welding high temperature feelings wiry
As a example condition, a kind of alternative inserting foreign body 2 in matrix 1 is as follows：(matrix 1 is permissible to mill out V-type metallic channel on matrix 1
It is cut open and is separated into two parts, and foreign body 2 must be able to be completely disposed in groove), then it is soldered to groove at double V-groove with welding rod
The a quarter of depth to 1/2nd depths suspend welding, after inserting foreign body 2, continue to be soldered to complete weld.
Brief description
Fig. 1 is Ultrasonic Nondestructive proficiency testing sample structure schematic diagram of the present invention.Matrix 1, foreign body 2.A
The close-up schematic view in the region by being irised out.
Specific embodiment
Ultrasonic Nondestructive proficiency testing sample structure schematic diagram as shown in Figure 1.Matrix 1 is internal each region acoustic signature
The basically identical mild steel of impedance, a size of 300mm × 300mm × 15mm, the face of two 300mm × 300mm of sample is permissible
Detection faces as ultrasonic listening.
Matrix 1 can be divided into the face of 2 pieces of 300mm × 150mm × 15mm as the plane of symmetry on matrix 1, by sample table
The machining that faces down inclination angle of inclined plane is the bilateral V-groove of 30 ° of deep 12mm；Using welding rod welding V-groove to from V-groove opening
Suspend welding, the foreign body 2 then inserting a size of φ 1mm × 20mm (elects the metal of proper alignment high temperature as herein at 10mm～5mm
Silk, such as tungsten filament)；The placement of foreign body 2 requires to move towards basically identical for its axial direction and V-groove, and end from V-groove two ends away from
From all not less than 10mm；Then proceed to be soldered to the welding completing V-groove.
Matrix 1 is all not limited to above-mentioned material or size with the selection of foreign body 2, and method for posting is also not limited to weld
Connect, can be selected according to the property of matrix 1 and foreign body 2, for example, can also select to make hole in matrix 1 and then insert foreign body
2 method.
Above are only embodiments of the invention, not thereby limit the scope of the claims of the present invention, the spy of matrix 1 and foreign body 2
Levy the feature being also not necessarily limited in Fig. 1.Every equivalent or close change made using present specification, or directly or
Connect the technical field being used in other correlations, be all included in the scope of patent protection of the present invention.
Claims (2)
1. a kind of preparation method of the sample for Ultrasonic Nondestructive proficiency testing is it is characterised in that step is as follows：
(1) select material or workpiece as matrix (1), matrix (1) selects or produce to be adapted as ultrasound examination
The region in face, as the region in ultrasound examination face, at least marks 30mm × 30mm square area in region, and needs surface
Smooth, the contact gap that should not cause probe with matrix is more than 0.5mm；Then insert foreign body (2) in matrix (1), in matrix
(1) largest cross-sectional sized of the foreign body (2) as artificial defect inserted in is between 0.5mm～10mm, and and matrix (1) tool
There are different acoustic signature impedances, that is,：Foreign body (2) and the acoustic signature impedance of matrix (1), the absolute value of both differences is not less than sound spy
Levy the 5% of impedance smaller；
(2) method for posting of foreign body (2) is selected according to the property of matrix (1) and foreign body (2)：
Welding is selected to insert foreign body (2) to stop in matrix (1)；
Or select to make hole in matrix (1) and then insert foreign body (2)；
When matrix (1) is that welding metal solid, foreign body (2) are the tinsel that can tolerate welding high temperature, in matrix (1)
The method inserting foreign body (2) is：Matrix (1) mills out V-type metallic channel, is then soldered to groove at double V-groove with welding rod
The a quarter of depth to 1/2nd depths suspend welding, after inserting foreign body (2), continue to be soldered to complete weld；In sample
Matrix (1) in insert foreign body (2) and form the artificial defect in matrix (1)；
Foreign body is different with the acoustic signature impedance of matrix.
2. sample according to claim 1 preparation method it is characterised in that described foreign body (2) be solid, gas or
Liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743495.6A CN106404921A (en) | 2016-08-27 | 2016-08-27 | Preparation method of sample for ultrasonic nondestructive detection proficiency testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743495.6A CN106404921A (en) | 2016-08-27 | 2016-08-27 | Preparation method of sample for ultrasonic nondestructive detection proficiency testing |
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| Publication Number | Publication Date |
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| CN106404921A true CN106404921A (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610743495.6A Pending CN106404921A (en) | 2016-08-27 | 2016-08-27 | Preparation method of sample for ultrasonic nondestructive detection proficiency testing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872526A (en) * | 2017-01-09 | 2017-06-20 | 浙江大学 | A kind of contactless gas-liquid-solid three-phase bubbling bed phase content measurement apparatus and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576450A (en) * | 2009-06-11 | 2009-11-11 | 西安交通大学 | Method for manufacturing surface crack defect test block for nondestructive flaw detection |
| CN103115959A (en) * | 2012-12-27 | 2013-05-22 | 沪东重机有限公司 | Ultrasonic flaw detection method of austenitic stainless steel sheet weld joint |
| CN105319278A (en) * | 2014-07-08 | 2016-02-10 | 哈尔滨飞机工业集团有限责任公司 | Ultrasonic contrast test block insert disposing method |
| CN105643134A (en) * | 2014-09-28 | 2016-06-08 | 中国海洋石油总公司 | Manufacturing method for pipeline circumferential weld artificial defect |
| CN105643133A (en) * | 2014-09-28 | 2016-06-08 | 中国海洋石油总公司 | Manufacturing method for pipeline circumferential weld artificial defect |
| CN105643049A (en) * | 2014-09-28 | 2016-06-08 | 中国海洋石油总公司 | Manufacturing method for pipeline circumferential weld artificial defect |
-
2016
- 2016-08-27 CN CN201610743495.6A patent/CN106404921A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576450A (en) * | 2009-06-11 | 2009-11-11 | 西安交通大学 | Method for manufacturing surface crack defect test block for nondestructive flaw detection |
| CN103115959A (en) * | 2012-12-27 | 2013-05-22 | 沪东重机有限公司 | Ultrasonic flaw detection method of austenitic stainless steel sheet weld joint |
| CN105319278A (en) * | 2014-07-08 | 2016-02-10 | 哈尔滨飞机工业集团有限责任公司 | Ultrasonic contrast test block insert disposing method |
| CN105643134A (en) * | 2014-09-28 | 2016-06-08 | 中国海洋石油总公司 | Manufacturing method for pipeline circumferential weld artificial defect |
| CN105643133A (en) * | 2014-09-28 | 2016-06-08 | 中国海洋石油总公司 | Manufacturing method for pipeline circumferential weld artificial defect |
| CN105643049A (en) * | 2014-09-28 | 2016-06-08 | 中国海洋石油总公司 | Manufacturing method for pipeline circumferential weld artificial defect |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872526A (en) * | 2017-01-09 | 2017-06-20 | 浙江大学 | A kind of contactless gas-liquid-solid three-phase bubbling bed phase content measurement apparatus and method |
| CN106872526B (en) * | 2017-01-09 | 2019-05-21 | 浙江大学 | A kind of contactless gas-liquid-solid three-phase bubbling bed phase content measuring device and method |
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Application publication date: 20170215 |