CN105548371B - Low-voltage electrical apparatus electrical contact Ultrasonic Nondestructive test block and combinations thereof and application - Google Patents
Low-voltage electrical apparatus electrical contact Ultrasonic Nondestructive test block and combinations thereof and application Download PDFInfo
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- 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
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Abstract
The present invention discloses a kind of low-voltage electrical apparatus electrical contact Ultrasonic Nondestructive test block and combinations thereof and application, and the test block consists of three parts: first part is convex component, and second part is annular seal component, and Part III is sealing cover；The annular seal component is mounted on the convex feature bottom, and the circular seal lid is arranged in the convex component top, and the annular seal component is between the convex component, the sealing cover；The convex component refers to that whole is in convex structure, and two parts up and down of convex are cylindrical body or cuboid；The convex components interior is equipped with trapezoidal hole.Wherein any one test block or multiple test block any combination is used alone in test block.The present invention for testing staff be convenient to use in probe, the performance test of detection device, sensitivity adjustment, the work of the adjustment etc. of adjustment and measurement range when detecting special shape workpiece.
Description
Technical field
The invention belongs to ultrasonic examination equipment technology fields, are to be related to a kind of low-voltage electrical apparatus electrical contact more specifically
Non-destructive testing test block and combinations thereof and application.
Background technique
Ultrasound examination is one of the lossless detection method being most widely used at present.It is strong with penetration power, equipment is light
Just, testing cost is low, detection efficiency is high, and the advantages that can know testing result immediately.
In the non-destructive testing industry of low-voltage electrical apparatus, the quality of welding quality is that the ratio of brazing area work of image is swept by measuring C
For the foundation of evaluation.In actually detected, often it is not enough to only by the various regulation buttons on detection device panel quantitative
Ground records sensitivity and other related testing conditions of detection device, this just gives measurement and subsequent verifying is brought
Difficulty, while being also inconvenient to measure the performance of detection system.
Existing test block has international standard test block and national standard test block, but often structure is complicated for reference block, and not
Since its different main application of composition are different, testing staff is very inconvenient in selection and use for same reference block.
It is found through retrieval, Chinese patent CN104777235A discloses a kind of lossless inspection of low-voltage electrical apparatus electric contact ultrasonic wave
It surveys and uses cambered surface plagiohedral test piece, including test block, the test block is cuboid, the cuboid lower surface and side surface
It is plane, upper surface is by the first inclined-plane that the first plane, tilt angle are 1~10 °, second that tilt angle is 10~20 °
Inclined-plane, the cylindrical surface that arc radius is 10~50mm and the second plane are connected in sequence.The invention fully considers low tension
The features of shape of device field electrical contact can cooperate ultrasound scanning, complete ultrasonic probe to inclined-plane or circular arc
The detectability of face workpiece is demarcated；The deficiency of test block specified in other multiple standards can be made up, work effect is improved
Rate has highly application value.
Although invention can provide a set of than more complete test block above, in actual use, still cannot be quick
The calibration to detection system is completed on ground according to scanning result, meanwhile, it can not easily carry out the performance test of detection device.
Summary of the invention
For above-mentioned defect in the prior art, the purpose of the present invention is design a kind of low-voltage electrical apparatus electrical contact ultrasonic wave without
Damage detection test block and combinations thereof and application, for testing staff be convenient to use in probe, detection device performance test,
The adjustment of sensitivity, the work of the adjustment etc. of adjustment and measurement range when detecting special shape workpiece.
To achieve the above object, the technical solution adopted by the present invention is that:
The present invention provides a kind of low-voltage electrical apparatus electrical contact Ultrasonic Nondestructive test block, and the test block is by three parts
Composition: first part is convex component, and second part is annular seal component, and Part III is sealing cover；The annulus
Shape seal member is mounted on the convex feature bottom, and the circular seal lid is arranged in the convex component top；Institute
It states convex component and refers to that whole is in convex structure, two parts up and down of convex are cylindrical body or cuboid；It is described convex
Font components interior is equipped with trapezoidal hole.
Further, the bottom of the cylindrical body of the convex component or cuboid is equipped with toroidal cavity, and is equipped with spiral shell
Pit；The circular ring shaped rubber sealing gasket is mounted in the toroidal cavity；The sealing cover is equipped with threaded hole, the spiral shell
Pit and the convex cylindrical body or the corresponding threaded holes of cuboid bottom close, to be fixed the three parts by screw
It is integrated.
In a preferred embodiment: the test block, two parts up and down of convex component are cylindrical body, on cylindrical body
Surface is plane, and inside is equipped with trapezoidal hole, and such structured testing block is known as plane test block.
Further, the plane test block is divided into two kinds, and when use is optionally one or two kinds of:
The first: plane test block, cylindrical body inside has a trapezoidal hole, and trapezoidal hole and exterior cylindrical are coaxial；Institute
Stating trapezoidal hole is blind hole, and there is a thickness in the upper surface of the distance from top cylindrical body of the trapezoidal hole；The ladder of the test block
Shape hole base diameter is bigger than the trapezoidal hole top diameter；
Second: plane test block, cylindrical body inside are equipped with about first, second two trapezoidal hole；Second ladder
Shape hole be located at described first it is trapezoidal below position；The top of second trapezoidal hole is the bottom of first trapezoidal hole；Institute
There is a thickness in top to the cylindrical body upper surface for stating the first trapezoidal hole, and the first trapezoidal hole base diameter is more trapezoidal than described first
Hole top diameter is big；The base diameter of second trapezoidal hole is greater than the top diameter of second trapezoidal hole.
In a preferred embodiment: two parts up and down of the test block, convex component are cylindrical body, the upper half
The upper surface of part cylindrical is spherical surface；Such structured testing block is known as Spherical Test block.
Further, the Spherical Test block, cylindrical body inside are equipped with a trapezoidal hole, the trapezoidal hole and the cylinder
Body is coaxial；There is a thickness in the top center of circle of trapezoidal hole to the spherical surface inside the test block；Test block trapezoidal hole bottom
Diameter is greater than the trapezoidal hole top diameter.
In a preferred embodiment: the top half of the test block, convex component is class cuboid, and lower half portion is
Cuboid；The class cuboid refers to that the upper surface of cuboid is cylindrical surface, and its projection is square；Such structured testing block
Referred to as cylindrical surface test block.
Further, it is equipped with a trapezoidal hole inside the cylindrical surface test block, the center of the trapezoidal hole is that the class is long
The center of cube；There is a thickness in the top center of circle of trapezoidal hole to the cylindrical surface inside the test block；The test block is trapezoidal
Hole base diameter is slightly larger than the trapezoidal hole top diameter.
The present invention also provides a kind of combination of above-mentioned Low Voltage Electrical Apparatus electrical contact non-destructive testing test block, the tests
The combination of block is a set of test block, including multiple test blocks, is divided into 3 groups by the shape of upper surface: set of planes, spherical surface group and cylinder
Face group；Wherein set of planes is at least two plane test block, and spherical surface group is 1 Spherical Test block, and cylindrical surface group is 1 cylindrical surface
Test block；In use, wherein any one test block or multiple test block any combination is used alone in test block；
The cylindrical body inside of at least two plane test block, wherein at least one plane test block has a trapezoidal hole
The cylindrical body inside of (i.e. the first plane test block), at least one plane test block is trapezoidal equipped with about first, second two
Hole (i.e. second of plane test block).Particular number is selected according to actual needs.
The present invention also provides a kind of applications of above-mentioned Low Voltage Electrical Apparatus electrical contact non-destructive testing test block, refer to: institute
Test block is stated for the non-destructive testing of Low Voltage Electrical Apparatus electrical contact；
When being detected using Ultrasonic Nondestructive equipment, target detection face is the top circle of trapezoidal hole inside test block
The plane at place；
When detection, total area of detection is equal to the upper surface of test block first part top half cylindrical body or cuboid
Area, and the defect area of testing result is the area of the top circle of trapezoidal hole inside test block, theoretical calculation ratio of brazing area are as follows:
The area of detection of (area of circle at the top of total area of detection-trapezoidal hole)/total；Meanwhile trapezoidal hole can eliminate Ultrasonic NDT
Edge effect；
Theoretical value is compared with the ratio of brazing area that detection obtains, completes the calibration to probe；
When being applied in combination, multiple groups theoretical value and actually detected value are obtained, by analysis theories value and actually detected value, can be obtained
To the linear properties of detection device.
By adopting the above-described technical solution, the beneficial effects of the present invention are:
Non-destructive testing test block of the present invention a whole set of can both use, and also can be used alone wherein any one test
Block or any combination thereof can cooperate ultrasound scanning, available corresponding pricker after each test block of scanning
Rate completes the work of adjustment of the calibration to probe and the performance test to detection device and sensitivity etc..This hair
Bright simple, easy to use, test block specified in alternative multiple standards improves working efficiency, has very high popularization and application
Value.
Detailed description of the invention
Fig. 1 is the axonometric drawing of the assembly of a set of planes test block of the invention；
Fig. 2 is test block ring structure schematic diagram of the present invention；
Fig. 3 is the schematic diagram of base structure of test block of the present invention；
Fig. 4 (a)-Fig. 4 (g) is the cross-sectional view of set of planes 1#-7# test block first part of the present invention；
Fig. 5 is the cross-sectional view of set of planes 8# test block first part of the present invention；
Fig. 6 (a), Fig. 6 (b) are spherical surface group 9# test block first part's cross-sectional view of the present invention and axonometric drawing；
Fig. 7 (a), Fig. 7 (b) are cylinder cells 10# test block first part's cross-sectional view of the present invention and axonometric drawing；
In figure: convex cylindrical body or convex cuboid 1, annular seal component 2, sealing cover 3, trapezoidal hole 4, type
The upper surface 5 of type component, the top 6 of trapezoidal hole and the bottom 7 of trapezoidal hole, the first trapezoidal hole 8 and the second trapezoidal hole 9.
Specific embodiment
Further description of the technical solution of the present invention below, and the following description is only to understand technical solution of the present invention
It is used, is not used in and limits the scope of the invention, protection scope of the present invention is subject to claims.
As shown in Fig. 1-Fig. 7, a kind of combination of low-voltage electrical apparatus electrical contact Ultrasonic Nondestructive test block, including it is a set of
Totally 10 test blocks, it is different according to the shape of test block upper surface, it is divided into 3 groups of plane, spherical surface and cylindrical surface, wherein set of planes is
8 plane test blocks, spherical surface group are 1 Spherical Test block, and cylindrical surface group is 1 cylindrical surface test block.
8 plane test blocks of set of planes are divided into two classes according to the difference of internal structure again, and the 1st class is 1# test block, 2#
Test block, 3# test block, 4# test block, 5# test block, 6# test block, 7# test block；2nd class is 8# test block.Spherical surface group is
9# test block.Cylindrical surface group is 10# test block.The constraint that the set test block does not determine in position, when use, can be used
A whole set of 10 test blocks also can be used alone wherein any one or more combinations as test block.When processing, each survey
Test block can be processed individually.
Each test block consists of three parts: 1#, 2#, 3#, 4#, 5#, 6#, 7#, 8# test block first part convex portion
Part, two parts up and down of convex are cylindrical bodies, and 9# tests first part's convex component, and convex top is divided into cylindrical body
(cylindrical body upper surface 5 is spherical surface), lower part is divided into cylindrical body；10# test block first part convex component, the top of convex
Dividing is class square, and lower part is cuboid；Second part is annular seal component 2 (such as circular ring shaped rubber sealing gasket), the
Three parts are sealing cover 3 (such as circular seal lid).The annular seal component 2 is mounted on the convex feature bottom, institute
The setting of sealing cover 3 is stated at 2 top of the convex component, the annular seal component 2 is located at the convex component, described
Between sealing cover 3；The convex components interior is equipped with trapezoidal hole 4 (vertical sectional shape in hole).
The structure of above-mentioned each test block is described in detail by way of example below:
As shown in Figure 1, for the installation diagram of the plane test block in one embodiment of the invention, i.e., above-mentioned set of planes test block
1#, 2#, 3#, 4#, 5#, 6#, 7#, each test block consist of three parts, and first part is (the convex portion of convex cylindrical body 1
Part), second part is annular seal component 2, and Part III is circular seal lid 3.First part's type of the test block
1 bottom surface of type cylindrical body is equipped with toroidal cavity, and is equipped with threaded hole；The annular seal component 2 is mounted on the circular ring shape
In groove；The circular seal lid 3 is equipped with threaded hole, the threaded hole of the threaded hole and 1 bottom of convex cylindrical body
It matches；By screw, the three parts are fixed as one.
As Fig. 4 (a) show the cross-sectional view of 1# test block first part.The diameter of convex cylindrical body upper surface 5 is
50mm；Inside is equipped with trapezoidal hole 4, and the trapezoidal hole 4 and cylindrical body are coaxial；Upper table of the top 6 of the trapezoidal hole 4 to cylindrical body
The distance in face 5 is 1.5mm；6 diameter of a circles are 15mm at the top of trapezoidal hole, and 7 diameter of a circle of bottom is 17mm；It is computed, the ladder
The area of 6 circles and the area ratio of the upper surface 5 of the upper part cylindrical of 1# test block first part are at the top of shape hole
152/502=0.09, i.e., 9%.
As Fig. 4 (b) show the cross-sectional view of 2# test block first part.The diameter of convex cylindrical body upper surface 5 is
50mm；Inside is equipped with trapezoidal hole 4, and the trapezoidal hole 4 and cylindrical body are coaxial；Upper table of the top 6 of the trapezoidal hole to cylindrical body
The distance in face 5 is 1.5mm；6 diameter of a circles are 20mm at the top of trapezoidal hole, and 7 diameter of a circle of bottom is 22mm；It is computed, the ladder
The area of 6 circles and the area ratio of the upper surface 5 of the upper part cylindrical of 1# test block first part are at the top of shape hole
202/502=0.16, i.e., 16%.
As Fig. 4 (c) show the cross-sectional view of 3# test block first part.The diameter of convex cylindrical body upper surface 5 is
50mm；Inside is equipped with trapezoidal hole 4, and the trapezoidal hole 4 and cylindrical body are coaxial；Upper table of the top 66 of the trapezoidal hole to cylindrical body
The distance in face 5 is 1.5mm；The diameter of circle 6 is 25mm at the top of trapezoidal hole, and the diameter of bottom circle 7 is 27mm；It is computed, the ladder
The area of 6 circles and the area ratio of the upper surface 5 of the upper part cylindrical of 1# test block first part are at the top of shape hole
252/502=0.25, i.e., 25%.
As Fig. 4 (d) show the cross-sectional view of 4# test block first part.The diameter of convex cylindrical body upper surface 5 is
50mm；Inside is equipped with trapezoidal hole 4, and trapezoidal 4 hole and cylindrical body are coaxial；Upper table of the top 6 of the trapezoidal hole to cylindrical body
The distance in face 5 is 1.5mm；6 diameter of a circles are 30mm at the top of trapezoidal hole, and the diameter of bottom circle 6 is 32mm；It is computed, the ladder
The area of 6 circles and the area ratio of the upper surface 5 of the upper part cylindrical of 1# test block first part are at the top of shape hole
302/502=0.36, i.e., 36%.
As Fig. 4 (e) show the cross-sectional view of 5# test block first part.The diameter of convex cylindrical body upper surface 5 is
50mm；Inside is equipped with trapezoidal hole 4, and the trapezoidal hole 4 and cylindrical body are coaxial；Upper table of the top 6 of the trapezoidal hole to cylindrical body
The distance in face 5 is 1.5mm；6 diameter of a circles are 35mm at the top of trapezoidal hole, and 7 diameter of a circle of bottom is 37mm；It is computed, the ladder
The area of 6 circles and the area ratio of the upper surface 5 of the upper part cylindrical of 1# test block first part are at the top of shape hole
352/502=0.49, i.e., 49%.
As Fig. 4 (f) show the cross-sectional view of 6# test block first part.The diameter of convex cylindrical body upper surface 5 is
50mm；Inside is equipped with trapezoidal hole 4, and the trapezoidal hole 4 and cylindrical body are coaxial；Upper table of the top 6 of the trapezoidal hole to cylindrical body
The distance in face 5 is 1.5mm；6 diameter of a circles are 40mm at the top of trapezoidal hole, and 7 diameter of a circle of bottom is 42mm；It is computed, the ladder
The area of 6 circles and the area ratio of the upper surface 5 of the upper part cylindrical of 1# test block first part are at the top of shape hole
402/502=0.64, i.e., 64%.
As Fig. 4 (g) show the cross-sectional view of 7# test block first part.The diameter of convex cylindrical body upper surface 5 is
50mm；Inside is equipped with trapezoidal hole 4, and the trapezoidal hole 4 and cylindrical body are coaxial；Upper table of the top 6 of the trapezoidal hole to cylindrical body
The distance in face 5 is 1.5mm；6 diameter of a circles are 45mm at the top of trapezoidal hole, and 7 diameter of a circle of bottom is 47mm；It is computed, the ladder
The area of 6 circles and the area ratio of the upper surface 5 of the upper part cylindrical of 1# test block first part are at the top of shape hole
452/502=0.81, i.e., 81%.
It is illustrated in figure 5 as the installation diagram of the plane test block in one embodiment of the invention, i.e. set of planes 8# test block
The cross-sectional view of a part.The diameter of part cylindrical is 50mm on 8# test block；Inside is equipped with upper the 8, second ladder of first trapezoidal hole
Shape hole 9, upper and lower 2 trapezoidal holes, the trapezoidal hole and cylindrical body are coaxial；The top of first trapezoidal hole 8 is to the upper of cylindrical body
The distance on surface 5 is 2mm；First trapezoidal hole, the 8 top diameter of a circle is 20mm, and bottom diameter of a circle is 45mm；Described
Two trapezoidal holes, 9 top diameter of a circle is 45mm, and bottom diameter of a circle is 47mm.
Fig. 6 (a), Fig. 6 (b) are that the cross-sectional view of the spherical surface group 9# test block first part in one embodiment of the invention and axis are surveyed
Figure；9# test block first part is convex component, and the top half of the convex and lower half portion are cylindrical body；
Portion of upper surface 5 is spherical surface on the convex, and the spherical radius is 150mm；Inside is equipped with trapezoidal hole 4, the trapezoidal hole 4
It is coaxial with cylindrical body；6 center of top surface of trapezoidal hole and spherical surface 5 have a distance, and this distance is 2mm；6 circle at the top of the trapezoidal hole
Diameter be 45mm, 7 diameter of a circle of trapezoidal hole bottom be 47mm.
Fig. 7 (a), Fig. 7 (b) are the cross-sectional view and axis of the cylinder cells 10# test block first part in one embodiment of the invention
Mapping；10# test block first part is convex component, and the top half of the convex is class cuboid, lower half
It is divided into cuboid；The upper surface 5 of the class cuboid is cylindrical surface, and cylinder radius surface is 150mm, and its projection is square；
Trapezoidal hole 4 is equipped with inside 10# test block, the center of the trapezoidal hole 4 is the center of the class cuboid；The top of the trapezoidal hole
The distance on the center of circle of the circle of portion 6 to the cylindrical surface is 2mm；6 diameter of a circles are 40mm, the trapezoidal hole bottom at the top of the trapezoidal hole
7 diameter of a circle of portion is 42mm.
In an application example, the 1# detected in test block combination of the invention using Ultrasonic Nondestructive equipment is tested
Block.The area of the upper surface 5 for the upper part cylindrical that total area of detection is 1# test block first part is defined, in 1# test block
The area of the circle of top 6 of portion's trapezoidal hole is positioned as defect area, and the ratio of brazing area detected is 91%, and non-ratio of brazing area is 9%.
At the top of the trapezoidal hole area of the upper surface 5 of the upper part cylindrical of the areas and 1# test block first part of 6 circles it
Than being 152/502=0.09, i.e., 9%.
Similarly, the single use principle of 2#~7# test block is identical as 1# test block.
When 1#~7# test block is used for multiple times in group merging, according to the theoretical ratio of brazing area being calculated and obtained reality is detected
Difference between verification and measurement ratio can complete such as linear test of performance test of detection device.
Set of planes 8# test block is the test block that can be used as calibration inclined-plane, detects inclined-plane workpiece in ultrasonic detecting equipment
Shi Zuowei test block uses.
Spherical surface group 9# test block is the test block that can be used as calibration spherical surface, detects spherical workpiece in ultrasonic detecting equipment
Shi Zuowei test block uses.
Spherical surface group 10# test block is the test block that can be used as calibration cylindrical surface, detects spherical surface in ultrasonic detecting equipment
It is used when workpiece as test block.
In another embodiment, it can also be surveyed only with two plane test blocks, a Spherical Test block, a cylinder cells
The combination of test block, plane test block are the test block that can be used as calibration inclined-plane, detect inclined-plane workpiece in ultrasonic detecting equipment
Shi Zuowei test block uses.Spherical Test block is the test block that can be used as calibration spherical surface, detects ball in ultrasonic detecting equipment
It is used when the workpiece of face as test block.Spherical Test block is the test block that can be used as calibration cylindrical surface, is set in ultrasound examination
It is used when standby detection spherical workpiece as test block.
The present invention can cooperate ultrasound scanning, complete the calibration of ultrasonic probe and detection system；It can be used
Detection system detects test block of the invention, when directly obtaining corresponding ratio of brazing area, and multiple test blocks can be used simultaneously,
The performance test of completion system can be used as the test of the workpiece of special shapes such as inclined-plane workpiece, spherical workpiece, cylindrical surface workpiece
Block.The present invention is simple, is easy to get, and test block specified in alternative multiple standards improves working efficiency, and there is very high popularization to answer
With value.
Type of the specific size of each test block, the number of combination and test block in above-described embodiment etc. is this hair
Bright to be used to for example, being not intended to limit the present invention protection scope, each test block of the present invention is also possible to other sizes
Parameter, combination do not influence essence of the invention, this is very easy to accomplish to those skilled in the art.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (5)
1. a kind of Low Voltage Electrical Apparatus electrical contact non-destructive testing test block, it is characterised in that: the test block is by three parts group
At: first part is convex component, and second part is annular seal component, and Part III is circular seal lid；The circle
Ring sealing part is mounted on the convex feature bottom, and the circular seal lid is arranged in the convex component top；
The convex component refers to that whole is in convex structure, and two parts up and down of convex are cylindrical body or cuboid；It is described
Convex components interior is equipped with trapezoidal hole；
The test block is plane test block, Spherical Test block or cylindrical surface test block, in which:
The plane test block, two parts up and down of convex component are cylindrical body, and cylindrical body upper surface is plane, interior
Portion is equipped with trapezoidal hole；The plane test block is divided into two kinds, and when use is optionally one or two kinds of:
The first: plane test block, cylindrical body inside has a trapezoidal hole, and trapezoidal hole and exterior cylindrical are coaxial；The ladder
Shape hole is blind hole, and there is a thickness in the upper surface of the distance from top cylindrical body of the trapezoidal hole；The trapezoidal hole of the test block
Base diameter is bigger than the trapezoidal hole top diameter；
Second: plane test block, cylindrical body inside are equipped with about first, second two trapezoidal hole；Second trapezoidal hole
The position below first trapezoidal hole；The top of second trapezoidal hole is the bottom of first trapezoidal hole；It is described
There is a thickness in the top of first trapezoidal hole to cylindrical body upper surface, and the first trapezoidal hole base diameter is than first trapezoidal hole
Top diameter is big；The base diameter of second trapezoidal hole is greater than the top diameter of second trapezoidal hole；
Two parts up and down of the Spherical Test block, convex component are cylindrical body, the top half cylindrical body it is upper
Surface is spherical surface；The Spherical Test block, cylindrical body inside are equipped with a trapezoidal hole, and the trapezoidal hole and the cylindrical body are same
Axis；There is a thickness in the top center of circle of trapezoidal hole to the spherical surface inside the test block；The test block trapezoidal hole base diameter
Greater than the trapezoidal hole top diameter；
The top half of the cylindrical surface test block, convex component is class cuboid, and lower half portion is cuboid；It is described
Class cuboid refers to that the upper surface of cuboid is cylindrical surface, and its projection is square.
2. Low Voltage Electrical Apparatus electrical contact non-destructive testing test block according to claim 1, it is characterised in that: described convex
The cylindrical body of font component or the bottom of cuboid are equipped with toroidal cavity, and are equipped with threaded hole；The annular rubber sealing
Pad is mounted in the toroidal cavity；The sealing cover is equipped with threaded hole, the threaded hole and the convex cylindrical body
Or the corresponding threaded holes of cuboid bottom close, so that the three parts are fixed as one by screw.
3. Low Voltage Electrical Apparatus electrical contact non-destructive testing test block according to claim 1, it is characterised in that: the circle
A trapezoidal hole is equipped with inside cylinder test block, the center of the trapezoidal hole is the center of the class cuboid；In the test block
There is a thickness in the top center of circle of portion's trapezoidal hole to the cylindrical surface；The test block trapezoidal hole base diameter is slightly larger than described trapezoidal
Hole top diameter.
4. a kind of group of the described in any item Low Voltage Electrical Apparatus electrical contact non-destructive testing test blocks of the claims 1-3
It closes, it is characterised in that: the combination of the test block is a set of test block, including multiple test blocks, is divided into 3 by the shape of upper surface
Group: set of planes, spherical surface group and cylindrical surface group；Wherein set of planes is at least two plane test block, and spherical surface group is 1 Spherical Test
Block, cylindrical surface group are 1 cylindrical surface test block；In use, wherein any one test block or multiple is used alone in test block
Test block any combination；
The cylindrical body inside of at least two plane test block, wherein at least one plane test block has a trapezoidal hole, at least
About first, second two trapezoidal hole is equipped with inside the cylindrical body of one plane test block.
5. a kind of described in any item Low Voltage Electrical Apparatus electrical contact non-destructive testing test blocks of the claims 1-3 are answered
With, it is characterised in that: the test block is used in Low Voltage Electrical Apparatus electrical contact non-destructive testing；
When being detected using Ultrasonic Nondestructive equipment, target detection face is the top circle place of trapezoidal hole inside test block
Plane；
When detection, total area of detection is equal to the face of the upper surface of test block first part top half cylindrical body or cuboid
Product, and the defect area of testing result is the area of the top circle of trapezoidal hole inside test block, theoretical calculation ratio of brazing area are as follows: it is (total
Area of detection-trapezoidal hole at the top of circle area)/total area of detection；Meanwhile trapezoidal hole can eliminate the side of Ultrasonic NDT
Edge effect；
Theoretical value is compared with the ratio of brazing area that detection obtains, completes the calibration to probe；
When being applied in combination, multiple groups theoretical value and actually detected value are obtained, by analysis theories value and actually detected value, can be examined
The linear properties of measurement equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035860.8A CN105548371B (en) | 2016-01-20 | 2016-01-20 | Low-voltage electrical apparatus electrical contact Ultrasonic Nondestructive test block and combinations thereof and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035860.8A CN105548371B (en) | 2016-01-20 | 2016-01-20 | Low-voltage electrical apparatus electrical contact Ultrasonic Nondestructive test block and combinations thereof and application |
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| CN103808797A (en) * | 2012-11-07 | 2014-05-21 | 有研亿金新材料股份有限公司 | Method used for detecting welding quality of diffusion welding |
| CN104777235A (en) * | 2015-04-10 | 2015-07-15 | 上海和伍新材料科技有限公司 | Arc surface/inclined surface type test workpiece for ultrasonic non-destructive testing of electric contacts of low-voltage apparatuses |
| CN205581063U (en) * | 2016-01-20 | 2016-09-14 | 上海和伍精密仪器股份有限公司 | Low voltage apparatus electrical contact ultrasonic wave nondestructive test is with test piece and combination thereof |
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| CN103808797A (en) * | 2012-11-07 | 2014-05-21 | 有研亿金新材料股份有限公司 | Method used for detecting welding quality of diffusion welding |
| CN104777235A (en) * | 2015-04-10 | 2015-07-15 | 上海和伍新材料科技有限公司 | Arc surface/inclined surface type test workpiece for ultrasonic non-destructive testing of electric contacts of low-voltage apparatuses |
| CN205581063U (en) * | 2016-01-20 | 2016-09-14 | 上海和伍精密仪器股份有限公司 | Low voltage apparatus electrical contact ultrasonic wave nondestructive test is with test piece and combination thereof |
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