CN206601367U - The special reference block of stainless steel clad plate butt welded joint ultrasound detection - Google Patents
The special reference block of stainless steel clad plate butt welded joint ultrasound detection Download PDFInfo
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- CN206601367U CN206601367U CN201720268350.5U CN201720268350U CN206601367U CN 206601367 U CN206601367 U CN 206601367U CN 201720268350 U CN201720268350 U CN 201720268350U CN 206601367 U CN206601367 U CN 206601367U
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- block
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- stainless steel
- ultrasound detection
- welded joint
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Abstract
The utility model discloses a kind of special reference block of stainless steel clad plate butt welded joint ultrasound detection, including block, welding point and artificial reflector, block includes substrate and compound plate, compound plate is located at surface, the thickness and material of block are consistent with the thickness and material of workpiece to be detected respectively, welding point is banjo fixing butt jointing, and artificial reflector is wire cutting groove, and artificial reflector is located at the middle of welding point.Because the thickness and material of block and the thickness and material of workpiece to be detected are consistent, it therefore, it can the signal by artificial reflector generation on ultrasound examination block compared with the ultrasonic signal produced by the fusion line of welding point both sides on workpiece to be detected.The position error of compound plate banjo fixing butt jointing ultrasound detection can be corrected by the reference block；Compound plate banjo fixing butt jointing quantitative error is determined, its offset is determined.
Description
Technical field
The utility model belongs to a kind of reference block for being used to detect, more particularly, to a kind of stainless steel clad plate butt welding
The special reference block of joint ultrasound detection.
Background technology
All kinds of pressure of the clad steel plate because of its good applicability and economy in oil, chemical industry, light industry and nuclear industry hold
It is used widely in device.Common stainless compound steel plate is the austenitic stainless steel using carbon steel and low-alloy steel as substrate
For compound plate；It is current domestic and international application most extensive, frequency of use and ultrasound detection is as one of five big conventional non-destructive testing technologies
Highest and a kind of faster non-destructive testing technology of development.Clad steel plate or the steel band ultrasonic longitudinal wave method of inspection are only seen by the country at present
Standard, the rarely seen relevant report for having clad steel plate butt weld ultrasonic shear waves to detect a flaw, not yet there is reference block.
Utility model content
The purpose of this utility model be to provide it is a kind of can solve the above problems in the stainless steel clad plate of at least one
The special reference block of butt welded joint ultrasound detection.
According to one side of the present utility model, there is provided a kind of stainless steel clad plate butt welded joint ultrasound detection is special
With reference block, including block, welding point and artificial reflector, block includes substrate and compound plate, and compound plate is located at surface,
The thickness and material of block are consistent with the thickness and material of workpiece to be detected respectively, and welding point is banjo fixing butt jointing, artificial reflection
Body is wire cutting groove, and artificial reflector is located at the middle of welding point.
The beneficial effects of the utility model are：Due to the thickness and material of block and the thickness of workpiece to be detected and material one
Cause, therefore, it can the signal and welding point two on workpiece to be detected by artificial reflector generation on ultrasound examination block
Ultrasonic signal produced by the fusion line of side compares.Compound plate banjo fixing butt jointing ultrasound detection can be corrected by the reference block
Position error；Compound plate banjo fixing butt jointing quantitative error is determined, its offset is determined.
In some embodiments, the groove depth of artificial reflector is the 10% of block thickness, and flute length is equal to the width of block.
Thus, be set to the artificial reflector i.e. standard of manual simulation's defect, be easy to workpiece to be detected with it is of the present utility model stainless
The special reference block of steel composite board butt welded joint ultrasound detection is quickly compared；Meanwhile, flute length is equal to the width of block,
It is easy to draw the signal that artificial reflector is located in the middle part of workpiece and produced by border, is easy to the welding point on workpiece to be detected each
The detection of defect present on individual direction.
In some embodiments, the upper surface and lower surface of block are equipped with artificial reflector.Thus, detection is facilitated to make
With so that compound plate side and substrate side can be used as test surface.
In some embodiments, the thickness of compound plate is less than the thickness of substrate.Thus, use requirement is met.
In some embodiments, the welding procedure of welding point is identical with the welding procedure of workpiece to be detected.So as to just
It is special to having a competition in workpiece measured signal to be detected and stainless steel clad plate butt welded joint ultrasound detection of the present utility model
The direct comparison of block measured signal, quickly obtains testing result.
In some embodiments, the equivalent diameter of defect is less than 2mm on block.Thus, must not occur on block substantially
Defect, it is to avoid larger defective effect testing result on block.
Brief description of the drawings
Fig. 1 is that one kind of the special reference block of stainless steel clad plate butt welded joint ultrasound detection of the present utility model is real
Apply the structural representation of mode.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Reference picture 1.The special reference block of stainless steel clad plate butt welded joint ultrasound detection of the present utility model, including
Block 1, welding point 2 and artificial reflector 3, block 1 include substrate 11 and compound plate 12, and compound plate 12 is located at the top of substrate 11, base
Plate 11 is brought into close contact fixation with compound plate 12.The thickness and material of block 1 are consistent with the thickness and material of workpiece to be detected respectively, weldering
Joint 2 is banjo fixing butt jointing, and artificial reflector 3 is wire cutting groove, and the groove width of general wire cutting groove is 0.5mm, artificial reflector 3
Positioned at the middle of welding point 2.
Wherein, the end face of the end face of compound plate 12 and substrate 11 is equipped with two ends up and down of artificial reflector 3, i.e. block 1
There is artificial reflector 3 in face.Workpiece to be detected is also stainless steel compound plate.
The groove depth of artificial reflector 3 is the 10% of the thickness of block 1, and flute length is equal to the width of block, by《Pressure vessel is regular
Inspection rule》It is that thin plate austenite allows presence by 10% defect of the thickness of block 1 to draw the depth for working as artificial reflector 3
Minimum defect.
The thickness of compound plate 12 is less than the thickness of substrate 11.
The welding procedure of welding point 2 is identical with the welding procedure of workpiece to be detected, in order to quickly to using same weld
The workpiece to be detected of technique is detected, and uses identical criterion to the workpiece of similar welding point, on block 1
Obtain the welding point 2 similar to the welding point on workpiece to be detected.
The equivalent diameter of defect is less than 2mm on block 1.
The special reference block of stainless steel clad plate butt welded joint ultrasound detection of the present utility model substrate when in use
11 and the end face of compound plate 12 can be used as test surface.The test surface that the end face of substrate 11 is located at the both sides of welding point 2 is respectively to visit
Survey face B1 and test surface B2, the test surface that the end face of compound plate 12 is located at the both sides of welding point 2 is respectively test surface A1 and test surface A2.
The special reference block of stainless steel clad plate butt welded joint ultrasound detection mainly has following effect：Correct compound plate banjo fixing butt jointing
The position error of ultrasound detection；Compound plate banjo fixing butt jointing quantitative error is determined, its offset is determined.
Missed using the special reference block correction positioning of the utility model stainless steel clad plate butt welded joint ultrasound detection
Difference：
Instrument and probe first mix up positioning with the A test blocks of CSK- II, correct fixed with this special reference block again on this basis
Position error, notices that timing should be used and detection workpiece identical detection faces (substrate and compound plate), test block compound plate thickness and detection
Workpiece is identical.
Determine compound plate banjo fixing butt jointing quantitative error：
Propagate the difference of sound path in compound plate according to ultrasonic wave, quantitative error there are four kinds of different paths：A) it is ultrasonic
Ripple reaches substrate weld seam reflector by compound plate；B) ultrasonic wave passes through substrate, compound plate, arrival substrate weld seam reflector；C) it is ultrasonic
Ripple reaches compound plate weld seam reflector by substrate；D) ultrasonic wave reaches compound plate weld seam reflector by compound plate, substrate.
Substrate weld seam reflector quantitive error analysis：
Sound wave by path a), b) reach substrate weld seam reflector when, due to caused by the difference of substrate and compound plate material be situated between
The difference of matter attenuation coefficient, to meet test condition, need to A1, A2 test surface carry out material disparity compensation, quantitative error and its
The big I of offset is pressed row formula and calculated.
Primary wave quantitative error △ 1=(HA1-HB1)+(HA2-HB2)/2+△1 mends(dB) (1)
Secondary wave quantitative error △ 2=(HB1-HA1)+(HB2-HA2)|/2+△2 mend(dB) (2)
Wherein, primary wave offset：△1 mends=(αIt is difficult to understand-αCarbon)t2/cosβs2(dB) (3)
Secondary wave offset：△2 mend=2 (αIt is difficult to understand-αCarbon)t2/cosβs2(dB) (4)
In formula：HA1、HA2、HB1、HB2The wave height of-corresponding test surface, dB
αIt is difficult to understand- austenitic stainless steel (compound plate) diectric attenuation coefficient；
αCarbon- carbon steel (substrate) diectric attenuation coefficient；
T2- compound plate thickness；
cosβs2- ultrasonic wave passes through incidence angle cosine during compound plate.
Compound plate weld seam reflector quantitive error analysis：When sound wave c) reaches compound plate weld seam reflector by path, compound plate weld seam
The compensation of reflector quantitative error is more (such as compound plate and compound plate welding metal grain size and position to) due to being related to factor, because
This is relatively reasonable by surveying acquisition quantitative error offset data；When sound wave d) reaches compound plate weld seam reflector by path, substrate
Compensate and can be drawn by formula (3) with the difference quantitative error of compound plate material, the compensation method of compound plate weld seam reflector quantitative error
With path c).
Above-described is only preferred embodiment of the present utility model, it is noted that for the ordinary skill of this area
For personnel, on the premise of the utility model creation design is not departed from, various modifications and improvements can be made, these all belong to
In protection domain of the present utility model.
Claims (6)
1. the special reference block of stainless steel clad plate butt welded joint ultrasound detection, it is characterised in that including block (1), weldering
Joint (2) and artificial reflector (3), the block (1) include substrate (11) and compound plate (12), and the compound plate (12) is located at base
Above plate (11), the thickness and material of the block (1) are consistent with the thickness and material of workpiece to be detected respectively, described to connect
Head (2) is banjo fixing butt jointing, and the artificial reflector (3) is wire cutting groove, and the artificial reflector (3) is located at welding point (2)
Middle.
2. the special reference block of stainless steel clad plate butt welded joint ultrasound detection according to claim 1, its feature
It is, the groove depth of the artificial reflector (3) is the 10% of block (1) thickness, flute length is equal to the width of block.
3. the special reference block of stainless steel clad plate butt welded joint ultrasound detection according to claim 2, its feature
It is, the upper surface and lower surface of the block (1) are equipped with artificial reflector.
4. the stainless steel clad plate butt welded joint ultrasound detection according to any one of claims 1 to 3 is special to having a competition
Block, it is characterised in that the thickness of the compound plate (12) is less than the thickness of substrate (11).
5. the special reference block of stainless steel clad plate butt welded joint ultrasound detection according to claim 1, its feature
It is, the welding procedure of the welding point (2) is identical with the welding procedure of workpiece to be detected.
6. the special reference block of stainless steel clad plate butt welded joint ultrasound detection according to claim 4, its feature
It is, the equivalent diameter of defect is less than 2mm on the block (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268350.5U CN206601367U (en) | 2017-03-17 | 2017-03-17 | The special reference block of stainless steel clad plate butt welded joint ultrasound detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268350.5U CN206601367U (en) | 2017-03-17 | 2017-03-17 | The special reference block of stainless steel clad plate butt welded joint ultrasound detection |
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| Publication Number | Publication Date |
|---|---|
| CN206601367U true CN206601367U (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720268350.5U Expired - Fee Related CN206601367U (en) | 2017-03-17 | 2017-03-17 | The special reference block of stainless steel clad plate butt welded joint ultrasound detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918219A (en) * | 2018-06-30 | 2018-11-30 | 武汉冶钢结构有限责任公司 | The preparation method of non-destructive testing with dreg defect weld seam simulating test pieces |
-
2017
- 2017-03-17 CN CN201720268350.5U patent/CN206601367U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918219A (en) * | 2018-06-30 | 2018-11-30 | 武汉冶钢结构有限责任公司 | The preparation method of non-destructive testing with dreg defect weld seam simulating test pieces |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20180317 |
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| CF01 | Termination of patent right due to non-payment of annual fee |