CN111965262A - Stainless steel composite sheet butt weld ultrasonic testing contrast test block - Google Patents
Stainless steel composite sheet butt weld ultrasonic testing contrast test block Download PDFInfo
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- CN111965262A CN111965262A CN202010985956.7A CN202010985956A CN111965262A CN 111965262 A CN111965262 A CN 111965262A CN 202010985956 A CN202010985956 A CN 202010985956A CN 111965262 A CN111965262 A CN 111965262A
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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
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Abstract
The invention discloses an ultrasonic detection reference block for a butt weld of a stainless steel composite plate, which comprises a rectangular body, a stainless steel composite layer arranged at the bottom of the rectangular body, three phi 3 through holes horizontally penetrating through the rectangular body from front to back, and two 90-degree sectors with different radiuses arranged on one side edge of the rectangular body, wherein the radius of a large sector is 2 times that of a small sector; the parts except the stainless steel composite layer are made of 20# steel. The invention solves the problem of ultrasonic flaw detection sensitivity calibration of the butt weld of the stainless steel composite plate, so that the product quality is controlled; the working efficiency of the detection of the butt weld of the stainless steel composite plate is improved; the method replaces ray detection, and reduces potential safety hazards and influences on the environment in ray protection.
Description
Technical Field
The invention relates to the technical field of ultrasonic detection of welding seams, in particular to an ultrasonic detection reference block for a butt welding seam of a stainless steel composite plate.
Background
In the current bridge engineering construction, a large number of butt welds with stainless steel composite plates as base materials exist. The internal quality of the welding seams needs to be subjected to nondestructive detection, and two modes of ray detection and ultrasonic detection are generally available. The detection period of ray detection is long, the influence on the environment is large, and no existing ultrasonic detection standard exists for the butt weld of the stainless steel composite plate.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the invention is to provide a stainless steel composite plate butt weld ultrasonic detection reference block.
In order to solve the technical problem, the ultrasonic detection reference block for the butt weld of the stainless steel composite plate comprises a rectangular body, a stainless steel composite layer arranged at the bottom of the rectangular body, three phi 3 through holes horizontally penetrating through the rectangular body from front to back, and two 90-degree sectors with different radiuses arranged on one side edge of the rectangular body, wherein the radius of a large sector is 2 times that of a small sector; the parts except the stainless steel composite layer are all made of 20# steel.
Further, the thickness of the stainless steel composite layer is 3 mm.
Furthermore, the size of the rectangular body is 300mm in length, 40mm in width and 50mm in height, the radius of the large fan-shaped body is 50mm, the radius of the small fan-shaped body is 25mm, and the size tolerance is less than or equal to 0.1 mm.
Further, the three phi 3 through holes are respectively a first through hole, a second through hole and a third through hole, the first through hole is 150mm away from the other side edge of the rectangular body and 10mm away from the bottom edge, the second through hole is 150mm away from the other side edge of the rectangular body and 45mm away from the bottom edge, and the third through hole is 20mm away from the other side edge of the rectangular body and 20mm away from the bottom edge.
Furthermore, the surface roughness of the test block is less than or equal to 6.3 mu m; the three phi 3 through holes are parallel to the bottom surface of the rectangular body, the allowable error is less than or equal to 0.03mm, the diameter error of the through holes is less than or equal to 0.05mm, and the surface roughness is less than or equal to 3.2 mu m.
The invention has the beneficial effects that: 1. the ultrasonic flaw detection method is suitable for ultrasonic flaw detection of the butt weld of the stainless steel composite plate, so that the quality of a product is controlled; 2. the working efficiency of the detection of the butt weld of the stainless steel composite plate is improved; 3. the method replaces ray detection, and reduces potential safety hazards and influences on the environment in ray protection.
Drawings
FIG. 1 is a schematic structural diagram of a stainless steel composite plate butt weld ultrasonic testing reference block.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Example 1
A stainless steel composite plate butt weld ultrasonic detection reference block comprises a rectangular body 1, a stainless steel composite layer 2 arranged at the bottom of the rectangular body, three phi 3 through holes horizontally penetrating through the rectangular body from front to back, and two 90-degree fans with different radiuses and arranged on one side edge of the rectangular body, as shown in figure 1. The radius of the large sector 3 is 2 times of that of the small sector 4; the parts except the stainless steel composite layer are all made of 20# steel. The thickness of the stainless steel composite layer depends on the thickness of the stainless steel composite layer for bridges, and is usually 3 mm.
The space between the through holes is too large, so that the size of the test block is increased, and the test block is inconvenient to carry; the spacing is too small and the alignment will affect each other. In the embodiment, the size of the rectangular body is 300mm in length, 40mm in width and 50mm in height, the radius of the large fan 3 is 50mm, the radius of the small fan 4 is 25mm, and the size tolerance is less than or equal to 0.1 mm; the surface roughness of the test block is less than or equal to 6.3 mu m. The three phi 3 through holes are respectively a first through hole 5, a second through hole 6 and a third through hole 7, the first through hole 5 is 150mm away from the other side edge of the rectangular body and 10mm away from the bottom edge, the second through hole 6 is 150mm away from the other side edge of the rectangular body and 45mm away from the bottom edge, and the third through hole is 20mm away from the other side edge of the rectangular body and 20mm away from the bottom edge. The three phi 3 through holes are parallel to the bottom surface of the rectangular body, the allowable error is less than or equal to 0.03mm, the diameter error of the through holes is less than or equal to 0.05mm, and the surface roughness is less than or equal to 3.2 mu m.
The large and small segments are used for carrying out sound velocity calibration and measurement of the front edge of the probe from the bottom of the test block, and the specific operation is to place the ultrasonic probe at the bottom of the test block, and the probe sound wave is just positioned at the common circle center of the large and small segments after passing through the stainless steel composite plate by moving the probe. The sound waves are transmitted at the center of a circle, transmission perpendicular to the tangential direction of the cambered surfaces is formed on the cambered surfaces of the large and small segments, the ultrasonic instrument receives the maximum transmission signal, and the ultrasonic instrument can automatically calculate the sound velocity according to the difference of sound paths; and then the front edge of the probe can be calculated by measuring the distance from the front end point of the probe to the front end of the test block by the measuring tape.
The third through hole is used for measuring the refraction angle of the ultrasonic angle probe, the ultrasonic angle probe is used for detecting from the bottom of the test block in specific operation, the maximum echo is found on the ultrasonic instrument through the third through hole, and the k value of the angle probe is calculated according to the front edge of the probe, the hole distance and the hole depth.
And the three phi 3 through holes are used for manufacturing a distance-amplitude curve, after the sound velocity and the k value are measured, an ultrasonic probe is used for detecting from the bottom of the test block, and the distance-amplitude curve is manufactured through the maximum reflected wave of the three phi 3 through holes.
It is to be understood that the described embodiments are merely exemplary of the invention and that various modifications or additions may be made to the described embodiments by those skilled in the art or those skilled in the art which are similar thereto without departing from the spirit of the invention or exceeding the scope of the appended claims. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention.
Claims (6)
1. The ultrasonic detection reference block for the butt weld of the stainless steel composite plate is characterized by comprising a rectangular body, a stainless steel composite layer arranged at the bottom of the rectangular body, three phi 3 through holes horizontally penetrating through the rectangular body from front to back, and two 90-degree sectors with different radiuses arranged on one side edge of the rectangular body, wherein the radius of the large sector is 2 times that of the small sector; the parts except the stainless steel composite layer are all made of 20# steel.
2. The ultrasonic testing reference block for the butt weld of the stainless steel composite plate according to claim 1, wherein the thickness of the stainless steel composite plate is 3 mm.
3. The ultrasonic testing reference block for the butt weld of the stainless steel composite plate according to claim 2, wherein the sizes of the rectangular body are 300mm in length, 40mm in width and 50mm in height, the radius of the large sector is 50mm, the radius of the small sector is 25mm, and the dimensional tolerance is less than or equal to 0.1 mm.
4. The ultrasonic testing reference block for the butt weld of the stainless steel composite plate according to claim 3, wherein the three Φ 3 through holes are respectively a first through hole, a second through hole and a third through hole, the first through hole is 150mm away from the other side edge of the rectangular body and 10mm away from the bottom edge, the second through hole is 150mm away from the other side edge of the rectangular body and 45mm away from the bottom edge, and the third through hole is 20mm away from the other side edge of the rectangular body and 20mm away from the bottom edge.
5. The ultrasonic testing reference block for the stainless steel composite plate butt-jointed seam according to any one of claims 1-4, wherein the surface roughness of the block is less than or equal to 6.3 μm.
6. The ultrasonic testing reference block for the butt weld of the stainless steel composite plate according to claim 5, wherein the three phi 3 through holes are parallel to the bottom surface of the rectangular body, the allowable error is less than or equal to 0.03mm, the diameter error of the through holes is less than or equal to 0.05mm, and the surface roughness is less than or equal to 3.2 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010985956.7A CN111965262A (en) | 2020-09-18 | 2020-09-18 | Stainless steel composite sheet butt weld ultrasonic testing contrast test block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010985956.7A CN111965262A (en) | 2020-09-18 | 2020-09-18 | Stainless steel composite sheet butt weld ultrasonic testing contrast test block |
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| Publication Number | Publication Date |
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| CN111965262A true CN111965262A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010985956.7A Pending CN111965262A (en) | 2020-09-18 | 2020-09-18 | Stainless steel composite sheet butt weld ultrasonic testing contrast test block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376260A (en) * | 2021-08-06 | 2021-09-10 | 上海电气核电集团有限公司 | Welding seam simulation test block and ultrasonic detection process feasibility verification method |
-
2020
- 2020-09-18 CN CN202010985956.7A patent/CN111965262A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376260A (en) * | 2021-08-06 | 2021-09-10 | 上海电气核电集团有限公司 | Welding seam simulation test block and ultrasonic detection process feasibility verification method |
| CN113376260B (en) * | 2021-08-06 | 2021-11-02 | 上海电气核电集团有限公司 | Welding seam simulation test block and ultrasonic detection process feasibility verification method |
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