Method for increasing effective detection length of ultrasonic probe and ultrasonic probe

Abstract

The invention discloses a method for increasing the effective detection length of an ultrasonic probe and the ultrasonic probe. According to the method for increasing the effective detection length of the ultrasonic probe, the top end of the bottom of the ultrasonic probe is polished according to a special structure of the ultrasonic probe used in the ship building process, so that a U-shaped mounting groove surrounding the bottom of the probe is formed below the ultrasonic probe, and a U-shaped gasket is fixed in the mounting groove; the gasket and the protective film on the surface of the bottom of the probe are integrated through polishing, so that the gasket protects the protective film in multiple directions, the U-shaped gasket is fixedly embedded in the U-shaped mounting groove, the possibility that the gasket rubs against a detected object and falls off when the ultrasonic probe is used is reduced, the protection of the gasket on the protective film is increased, and the service life of the ultrasonic probe is prolonged. The wear resistance and the service life of the ultrasonic probe are improved, the effective detection length of the probe is prolonged, and the welding seam detection cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a method for increasing the effective detection length of an ultrasonic probe and an ultrasonic probe. Background Technology

[0002] Ultrasonic testing technology, due to its high penetration capability in liquids and solids, can effectively detect internal defects in materials, such as cracks, inclusions, and pores, and is widely used in welding process inspection. The ultrasonic probe is a key component for realizing ultrasonic wave transmission and reception, and its performance directly affects the characteristics and detection capabilities of the ultrasonic waves. A typical probe usually consists of a piezoelectric crystal, a matching layer, and a reflective layer. The piezoelectric crystal is the core component that utilizes the piezoelectric effect of the material to convert electrical energy into acoustic energy. Piezoelectric crystals are generally fragile and easily damaged when scanning in direct contact with the surface of the test piece. To protect the crystal and electrode layer, a thin protective film is usually adhered beneath the probe. To prevent the protective film from detaching due to friction with the object being tested, a gasket is placed at the end of the protective film, as shown in the ultrasonic wear-resistant probe disclosed in Chinese Patent CN109142541A.

[0003] Due to the thickness of ship steel plates and the complex and confined operating space of ships, the Dopler A5P9*9A70 ultrasonic probe is typically used for detection in the shipbuilding industry. Figure 1 As shown, the Dopler A5P9*9A70 ultrasonic probe has a structure different from other models of ultrasonic probes. Its probe bottom 201 protrudes from the probe body 2, and the length of the probe bottom 201 in the left-right direction is the same as the length of the probe body 2 in the left-right direction. Therefore, a gasket cannot be set at the end of the probe bottom of the Dopler A5P9*9A70 ultrasonic probe, which makes the ultrasonic probe used in shipbuilding easily worn, reducing the service life and effective detection length of the ultrasonic probe in shipbuilding, and increasing the cost of weld inspection. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a method and an ultrasonic probe for improving the effective detection length of an ultrasonic probe, thereby solving the technical problems of easy wear and short effective detection length of ultrasonic probes used in shipbuilding processes.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: A method to improve the effective detection length of an ultrasonic probe. In an embodiment, the probe bottom of the ultrasonic probe protrudes from the probe body, the length of the probe bottom in the left-right direction is the same as the length of the probe body in the left-right direction, the front-rear direction of the probe bottom is away from the side of the front-rear direction of the probe body by a certain distance, a connector is arranged on the probe body to connect a wire, and the end away from the connector 202 is defined as the top end, and the method comprises: S1, polishing the top end of the probe bottom to make the top end of the probe bottom away from the top end of the probe body by a certain distance, and the side of the probe bottom and the bottom surface of the probe body form a U-shaped mounting groove; S2, bending the metal strip into a U-shaped gasket with an arc consistent with the arc of the mounting groove, fixing the gasket in the mounting groove, and the inner side of the gasket adjacent to the side surface of the probe bottom; S3, polishing the outer side of the gasket to make the outer side of the gasket in the same plane as the outer side of the probe body, and polishing the bottom surface of the gasket to make the bottom surface of the gasket in the same plane as the bottom surface of the probe bottom.

[0006] In an embodiment, the distance between the top end of the probe bottom and the top end of the probe body in S1 is 1mm.

[0007] In an embodiment, the material of the metal strip in S2 is stainless steel, and the width and height of the metal strip are 2m*2m.

[0008] In an embodiment, the gasket is pasted in the mounting groove using organic glue in S2, and the gasket is left to stand for 24 hours after pasting.

[0009] In an embodiment, when polishing the gasket in S3, coarse grinding is first performed on the gasket using a grinding wheel, and then fine grinding is performed on the gasket using sandpaper.

[0010] The application also provides an ultrasonic probe, characterized in that the probe bottom of the ultrasonic probe is processed by the above method.

[0011] Compared with the prior art, the application has at least the following beneficial effects: In the application, the top end of the probe bottom of the ultrasonic probe used in the shipbuilding process is polished, so that a U-shaped mounting groove surrounding the probe bottom is formed on the lower surface of the ultrasonic probe, a U-shaped gasket is fixed in the mounting groove, and the gasket and the protective film on the surface of the probe bottom are integrated by polishing, so that the gasket protects the protective film in multiple directions, the U-shaped gasket is embedded in the U-shaped mounting groove, the possibility of the gasket falling off due to friction with the detected object during use of the ultrasonic probe is reduced, the protection of the gasket on the protective film is increased, the wear resistance and service life of the ultrasonic probe are improved, the effective detection length of the probe is prolonged, and the cost of weld detection is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the bottom of the multi-pulse A5P9*9A70 type ultrasonic probe in the embodiment of the present application; Figure 2 is a structural schematic diagram of the ultrasonic probe after polishing treatment of the probe bottom in the embodiment of the present application; Figure 3 is a structural schematic diagram of the gasket in the embodiment of the present application; Figure 4 is a structural schematic diagram of the ultrasonic probe with the gasket arranged at the bottom in the embodiment of the present application.

[0013] Reference signs: 1, gasket; 2, probe main body; 201, probe bottom; 202, joint; 203, mounting groove. DETAILED DESCRIPTION

[0014] In order to make the objects, technical solutions and advantages of the present application clearer and more comprehensible, the present application will be described below through specific embodiments shown in the drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0015] The terms used in the present disclosure are merely for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms "a", "an" and "the" used in the present disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0016] It should be understood that although the terms first, second, third, etc. can be used in the present disclosure to describe various information, these information should not be limited to these terms and should not be understood as indicating or implying relative importance. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "when" or "upon" or "in response to determining".

[0017] In the description of the present application, unless otherwise specified and limited, it is necessary to explain that the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be mechanical connection, or the communication between the two elements, it can be direct connection, or indirect connection through intermediate medium, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0018] In order to better understand the technical solutions of the present application, the present application will be described in detail below with reference to the drawings.

[0019] The embodiment provides a method for improving the effective detection length of an ultrasonic probe. Figure 1 As shown in the figure, the probe bottom 201 of the ultrasonic probe protrudes from the probe main body 2, the length of the probe bottom 201 in the left-right direction is the same as the length of the probe main body 2 in the left-right direction, the front-rear direction of the probe bottom 201 is a certain distance from the side of the probe main body 2 in the front-rear direction, and the probe main body 2 is provided with a connector 202 for connecting a wire, and the end far from the connector 202 is defined as the top end, and the method comprises the following steps: S1, polishing the top end of the probe bottom 201 so that the top end of the probe bottom 201 is a certain distance from the top end of the probe main body 2, and the side of the probe bottom 201 and the bottom surface of the probe main body 2 form a U-shaped mounting groove 203, as shown in the figure; Figure 2 S2, as shown in the figure, bending a metal strip into a U-shaped gasket 1 with an arc consistent with the arc of the mounting groove 203, fixing the gasket 1 in the mounting groove 203, and the inner side of the gasket 1 is adjacent to the side surface of the probe bottom 201; S3, polishing the outer side of the gasket 1 so that the outer side of the gasket 1 is in the same plane as the outer side of the probe main body 2, and polishing the bottom surface of the gasket 1 so that the bottom surface of the gasket 1 is in the same plane as the bottom surface of the probe bottom 201. Figure 3 In S1, the distance between the top end of the probe bottom 201 and the top end of the probe main body 2 is 1mm. In S2, the material of the metal strip is stainless steel, and the width and height of the metal strip are 2m*2m. In S2, the gasket 1 is pasted in the mounting groove 203 using organic glue, and after pasting, it is left to stand for 24 hours to ensure the stability of the gasket pasting. In S3, when polishing the gasket 1, first rough polishing is performed by a grinding wheel, and then fine polishing is performed by sandpaper. The bottom of the probe bottom 201 is an organic glass protective film, and the U-shaped gasket 1 is integrated with the organic glass protective film by polishing. When the ultrasonic probe is used, the gasket 1 protects the protective film in multiple directions, the U-shaped gasket 1 is embedded in the U-shaped mounting groove, and the possibility of falling off due to friction between the gasket and the detected object during use of the ultrasonic probe is reduced, thereby increasing the protection of the gasket 1 to the protective film.

[0020] The embodiment also provides an ultrasonic probe, which is processed by the above method.

[0021] The embodiment also provides an ultrasonic probe, which is processed by the above method.

[0022] ​In the shipbuilding process, the wear degree of the 28 ultrasonic probes in the embodiment for detecting the 100m long weld is tracked and investigated, and compared with the original probe, it is found that the wear degree of the ultrasonic probe is reduced from the average of 1.01mm before modification to 0.5mm after modification. Because the ultrasonic probe in the embodiment is more wear-resistant than the original ultrasonic probe, the service life of the ultrasonic probe in the embodiment is longer than that of the original ultrasonic probe, so that the effective detection length of the ultrasonic probe in the embodiment is longer. In actual production, the effective detection length of a single probe of the original multi-urp A5P9*9A70 ultrasonic probe is 298.1m in three months; the effective detection length of a single probe of the ultrasonic probe in the embodiment is 599m, 606m and 601m respectively in three months, and the average is 608mm, the effective detection length of the ultrasonic probe is obviously improved, the consumption of the ultrasonic probe is reduced from 40 to about 20 per month on average, and the cost of the weld detection is obviously reduced.

[0023] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that; the specific embodiments of the application can still be modified or some technical features can be replaced by equivalent; without departing from the spirit of the technical solutions of the present application, they should be covered in the technical solution range of the present application claimed.

Claims

1. A method for increasing the effective detection length of an ultrasonic probe, wherein the bottom of the ultrasonic probe protrudes from the probe body, the length of the bottom of the probe in the left-right direction is the same as the length of the probe body in the left-right direction, the bottom of the probe is a certain distance from the front-back side of the probe body in the front-back direction, the probe body is provided with a connector for connecting wires, and the end furthest from the connector 202 is defined as the top end, characterized in that, The method includes: S1. Grind the top of the bottom of the probe to make a certain distance between the top of the bottom of the probe and the top of the probe body, and form a U-shaped mounting groove between the side of the bottom of the probe and the bottom surface of the probe body. S2. Bend the metal strip into a U-shaped gasket with the same curvature as the mounting groove, and fix the gasket in the mounting groove. The inner side of the gasket is adjacent to the side surface of the bottom of the probe. S3. Grind the outer surface of the pad so that the outer surface of the pad is on the same plane as the outer surface of the probe body, and grind the bottom surface of the pad so that the bottom surface of the pad is on the same plane as the bottom surface of the probe.

2. The method for increasing the effective detection length of an ultrasonic probe according to claim 1, characterized in that, In S1, the top of the probe bottom is ground so that the distance between the top of the probe bottom and the top of the probe body is 1mm.

3. The method for increasing the effective detection length of an ultrasonic probe according to claim 2, characterized in that, The metal strip in S2 is made of stainless steel, and its width and height are 2m × 2m.

4. The method for increasing the effective detection length of an ultrasonic probe according to claim 1, characterized in that, In S2, organic adhesive is used to attach the gasket to the mounting groove, and it is left to stand for 24 hours after attachment.

5. The method for increasing the effective detection length of an ultrasonic probe according to claim 1, characterized in that, In S3, when polishing the gaskets, they are first coarsely ground with a grinding wheel and then finely ground with sandpaper.

6. An ultrasonic probe, characterized in that, The bottom of the ultrasonic probe is treated using the method described in any one of claims 1-5.

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