Multi-parameter reference block for small-diameter metal tubes

By designing a multi-parameter comparison test block of metal small diameter tube, including artificial defect grooves of curved parts and straight pipe parts, the problem of lack of fixed value basis in the internal defect monitoring of small diameter tubes is solved, and reliable setting of detection sensitivity and reliability of detection results are achieved.

CN222580013UActive Publication Date: 2025-03-07TESTING TECH RES CENT OF TIANJIN PROD QUALITY SUPERVISION & TESTING TECH RES INST
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420647127.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2025-03-07
Estimated Expiration
2034-04-01

AI Technical Summary

Technical Problem

The prior art lacks a fixed value basis in monitoring internal defects of small diameter tubes, resulting in uncertain detection sensitivity.

Method used

A multi-parameter comparison test block of a metal small diameter tube is designed, including the bent part and the straight part of the curved tube. There are multiple artificial defect grooves on both to simulate different types of defects.

Benefits of technology

It provides a constant value basis for sensitivity setting, which is suitable for non-destructive detection of small-diameter tube surface and internal defects, ensuring the reliability and consistency of the test results.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222580013U_ABST
    Figure CN222580013U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of medical detection, in particular to a multi-parameter reference block for a small-diameter metal tube, which is characterized in that a reference block body is a bent tube, a bent part and a straight tube part are arranged on the bent tube, and artificial defect grooves are arranged on the bent part (9) and the straight tube part (10). Compared with the prior art, the multi-parameter reference block for the metal small-diameter tube provides a fixed value basis for setting the sensitivity of a nondestructive testing instrument for surface and internal defects of the small-diameter tube, and the surface curvature of the reference block is consistent with that of the detected small-diameter tube; a fixed value basis is provided for sensitivity setting in transverse defect detection of an outer arc and an inner arc of a small-diameter pipe bending structure, a fixed value basis is provided for sensitivity setting in longitudinal defect detection of the outer arc and the inner arc of the small-diameter pipe bending structure, and a fixed value basis is provided for sensitivity setting in surface and internal transverse defect detection of a small-diameter pipe straight pipe structure; and a fixed value basis is provided for sensitivity setting in surface and internal longitudinal defect detection of the straight tube structure of the small-diameter tube.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of small-diameter pipes, in particular to a multi-parameter comparison test block for metal small-diameter pipes. Background Art

[0002] Ultrasonic testing is called non-destructive ultrasonic testing. It is a method of detecting internal defects of metal products by using high-frequency waves. As a non-destructive testing method, ultrasound is very suitable for detecting internal defects without damaging the object and material being tested. This technology is widely used in non-destructive testing of surface and internal defects of small-diameter metal pipes in the aerospace and power industries.

[0003] However, there is currently little defect data coverage for internal defect monitoring of small-diameter pipes. A multi-parameter comparison test block for small-diameter metal pipes is provided to provide a fixed value basis for the sensitivity setting of non-destructive testing instruments for surface and internal defects. Utility Model Content

[0004] To this end, the utility model provides a metal small-diameter tube multi-parameter comparison test block to solve the problems mentioned in the above background.

[0005] The utility model provides a multi-parameter comparison test block for a small-diameter metal tube. The comparison test block body is a curved tube. A curved portion and a straight tube portion are provided on the curved tube. The utility model is characterized in that artificial defect grooves are provided on the curved portion and the straight tube portion.

[0006] Furthermore, the outer arc artificial defect groove includes a transverse artificial defect groove on the outer arc surface, a transverse artificial defect groove on the inner arc surface, a longitudinal artificial defect groove on the outer arc surface, a longitudinal artificial defect groove on the inner arc surface, a longitudinal artificial defect groove on the straight tube surface, a transverse artificial defect groove on the inner side of the straight tube, a transverse artificial defect groove on the straight tube surface, and a longitudinal artificial defect groove on the inner side of the straight tube.

[0007] Furthermore, the curved portion is provided with a transverse artificial defect groove on the outer arc surface, a transverse artificial defect groove on the inner arc surface, a longitudinal artificial defect groove on the outer arc surface and a longitudinal artificial defect groove on the inner arc surface.

[0008] The transverse artificial defect groove on the surface is arranged on the outside of the radial section of the curved portion, the transverse artificial defect groove on the inner arc surface is arranged on the inside of the radial section of the curved portion, the longitudinal artificial defect groove on the outer arc surface is arranged on the outside of the axial longitudinal section of the curved portion, and the longitudinal artificial defect groove on the inner arc surface is arranged on the inside of the axial longitudinal section of the curved portion;

[0009] The straight tube portion is provided with a longitudinal artificial defect groove on the surface of the straight tube, a transverse artificial defect groove on the inner side of the straight tube, a transverse artificial defect groove on the surface of the straight tube and a longitudinal artificial defect groove (8) on the inner side of the straight tube;

[0010] The longitudinal artificial defect groove on the surface of the straight tube is arranged on the outside of the axial longitudinal section of the straight tube portion, the transverse artificial defect groove on the inside of the straight tube is arranged on the inside of the axial longitudinal section of the straight tube portion, the transverse artificial defect groove on the surface of the straight tube is arranged on the outside of the radial section of the straight tube portion, and the longitudinal artificial defect groove on the inside of the straight tube is arranged on the inside of the radial section of the straight tube portion.

[0011] Furthermore, the diameter of the curved tube is between 41.5 mm and 45.5 mm, and the wall thickness of the curved tube is between 3.5 mm and 7.5 mm.

[0012] Furthermore, the diameter of the curved tube is 43.5 mm, and the wall thickness of the curved tube is 5.5 mm. Furthermore, the ejector tube is made of polycarbonate (PC).

[0013] Furthermore, the depth of the artificial defect groove is 0.2mm-0.7mm, the length of the artificial defect groove is 2mm-6mm, and the width of the artificial defect groove is 0.1mm-0.4mm.

[0014] Furthermore, the depth of the artificial defect groove is 0.4 mm, the length of the artificial groove is 4 mm, and the width of the artificial groove is 0.2 mm.

[0015] Compared with the prior art, the utility model provides a fixed value basis for the sensitivity setting of nondestructive testing instruments for surface and internal defects of small diameter tubes, which is consistent with the surface curvature of the small diameter tube being tested. It provides a fixed value basis for the sensitivity setting in the detection of transverse defects at the outer arc and inner arc of the curved structure of small diameter tubes, provides a fixed value basis for the sensitivity setting in the detection of longitudinal defects at the outer arc and inner arc of the curved structure of small diameter tubes, provides a fixed value basis for the sensitivity setting in the detection of surface and internal transverse defects of the straight tube structure of small diameter tubes, and provides a fixed value basis for the sensitivity setting in the detection of surface and internal longitudinal defects of the straight tube structure of small diameter tubes. The test piece also has the fixed value basis for sensitivity setting under the above multiple detection types, and provides a multi-parameter setting basis for various small diameter tube detections at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of an artificial defect groove of a multi-parameter comparison test block of a small-diameter metal tube according to the utility model;

[0017] Figure 2 It is a schematic diagram of the bent tube structure of a multi-parameter comparison test block for a small-diameter metal tube according to the utility model;

[0018] Figure 3 This is a schematic diagram of the longitudinal defect structure inside the small-diameter tube of a metal small-diameter tube multi-parameter comparison test block described in the utility model.

[0019] Among them, 1 is the transverse artificial defect groove on the outer arc surface, 2 is the transverse artificial defect groove on the inner arc surface, 3 is the longitudinal artificial defect groove on the outer arc surface, 4 is the longitudinal artificial defect groove on the inner arc surface, 5 is the longitudinal artificial defect groove on the straight tube surface, 6 is the transverse artificial defect groove on the inner side of the straight tube, 7 is the transverse artificial defect groove on the straight tube surface, 8 is the longitudinal artificial defect groove on the inner side of the straight tube, 9 is the bending part, and 10 is the straight tube part. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0023] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1-Figure 3 As shown, the utility model relates to a multi-parameter comparison test block for a small-diameter metal tube, including a comparison test block body which is a curved tube, on which a curved portion 1 and a straight tube portion 2 are provided, and is characterized in that artificial defect grooves are provided on the curved portion 9 and the straight tube portion 10.

[0026] The artificial defect grooves include a transverse artificial defect groove 1 on the outer arc surface, a transverse artificial defect groove 2 on the inner arc surface, a longitudinal artificial defect groove 3 on the outer arc surface, a longitudinal artificial defect groove 4 on the inner arc surface, a longitudinal artificial defect groove 5 on the straight tube surface, a transverse artificial defect groove 6 on the inner side of the straight tube, a transverse artificial defect groove 7 on the straight tube surface, and a longitudinal artificial defect groove 8 on the inner side of the straight tube.

[0027] The curved portion 9 is provided with the outer arc surface transverse artificial defect groove 1, the inner arc surface transverse artificial defect groove 2, the outer arc surface longitudinal artificial defect groove 3 and the inner arc surface longitudinal artificial defect groove 4.

[0028] The transverse artificial defect groove 1 on the outer arc surface is arranged on the outer side of the radial section of the curved portion 9, the transverse artificial defect groove 2 on the inner arc surface is arranged on the inner side of the radial section of the curved portion 9, the longitudinal artificial defect groove 3 on the outer arc surface is arranged on the outer side of the axial longitudinal section of the curved portion 9, and the longitudinal artificial defect groove 4 on the inner arc surface is arranged on the inner side of the axial longitudinal section of the curved portion 9;

[0029] The straight tube portion 10 is provided with a longitudinal artificial defect groove 5 on the straight tube surface, a transverse artificial defect groove 6 on the inner side of the straight tube, a transverse artificial defect groove 7 on the straight tube surface and a longitudinal artificial defect groove 8 (8) on the inner side of the straight tube;

[0030] The longitudinal artificial defect groove 5 on the straight tube surface is arranged on the outside of the axial longitudinal section of the straight tube portion 10, the transverse artificial defect groove 6 on the inside of the straight tube is arranged on the inside of the axial longitudinal section of the straight tube portion 10, the transverse artificial defect groove 7 on the straight tube surface is arranged on the outside of the radial section of the straight tube portion 10, and the longitudinal artificial defect groove 8 on the inside of the straight tube is arranged on the inside of the radial section of the straight tube portion 10.

[0031] The diameter of the curved tube is between 41.5 mm and 45.5 mm, and the wall thickness of the curved tube is between 3.5 mm and 7.5 mm.

[0032] The diameter of the curved tube is 43.5 mm, and the wall thickness of the curved tube is 5.5 mm. Furthermore, the ejector tube is made of polycarbonate (PC).

[0033] The depth of the artificial defect groove is 0.2mm-0.7mm, the length of the artificial defect groove is 2mm-6mm, and the width of the artificial defect groove is 0.1mm-0.4mm.

[0034] The depth of the artificial defect groove is 0.4 mm, the length of the artificial groove is 4 mm, and the width of the artificial groove is 0.2 mm.

[0035] Method of use: Use an ultrasonic detection device to detect the transverse artificial defect groove 1 on the outer arc surface, the transverse artificial defect groove 2 on the inner arc surface, the longitudinal artificial defect groove 3 on the outer arc surface, the longitudinal artificial defect groove 4 on the inner arc surface, the longitudinal artificial defect groove 5 on the straight tube surface, the transverse artificial defect groove 6 on the inner side of the straight tube, the transverse artificial defect groove 7 on the straight tube surface, and the longitudinal artificial defect groove 8 on the inner side of the straight tube, thereby collecting data.

[0036] Specifically:

[0037] The transverse artificial defect groove 1 on the outer arc surface, the transverse artificial defect groove 2 on the inner arc surface, the longitudinal artificial defect groove 3 on the outer arc surface, the longitudinal artificial defect groove 4 on the inner arc surface, the longitudinal artificial defect groove 5 on the straight tube surface, the transverse artificial defect groove 6 on the inner side of the straight tube, the transverse artificial defect groove 7 on the straight tube surface, and the longitudinal artificial defect groove 8 on the inner side of the straight tube are preset artificial standard defect numbers, and the defect is a U-shaped groove.

[0038] The transverse artificial defect groove 1 on the outer arc surface is used for setting the transverse detection sensitivity in the outer arc ultrasonic flaw detection;

[0039] The transverse artificial defect groove 2 on the inner arc surface is used for setting the transverse detection sensitivity in the inner arc ultrasonic flaw detection.

[0040] The longitudinal artificial defect groove 3 on the outer arc surface is used for setting the longitudinal detection sensitivity in the outer arc ultrasonic flaw detection.

[0041] The longitudinal artificial defect groove 4 on the inner arc surface is used for setting the longitudinal detection sensitivity in the inner arc ultrasonic flaw detection.

[0042] The longitudinal artificial defect groove 5 on the straight pipe surface is used to set the longitudinal detection sensitivity in straight pipe flaw detection.

[0043] The transverse artificial defect groove 7 on the straight tube surface is used to set the transverse detection sensitivity in straight tube flaw detection.

[0044] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

[0045] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A metal small-diameter tube multi-parameter comparison test block, the comparison test block body is a curved tube, the curved tube is provided with a curved portion and a straight tube portion, characterized in that: The curved portion (9) and the straight tube portion (10) are provided with artificial defect grooves.

2. A metal small-diameter tube multi-parameter comparison test block according to claim 1, characterized in that: The artificial defect groove comprises a transverse artificial defect groove (1) on the outer arc surface, a transverse artificial defect groove (2) on the inner arc surface, a longitudinal artificial defect groove (3) on the outer arc surface, a longitudinal artificial defect groove (4) on the inner arc surface, a longitudinal artificial defect groove (5) on the straight tube surface, a transverse artificial defect groove (6) on the inner side of the straight tube, a transverse artificial defect groove (7) on the straight tube surface, and a longitudinal artificial defect groove (8) on the inner side of the straight tube.

3. A metal small-diameter tube multi-parameter comparison test block according to claim 2, characterized in that: The curved portion (9) is provided with the transverse artificial defect groove (1) on the outer arc surface, the transverse artificial defect groove (2) on the inner arc surface, the longitudinal artificial defect groove (3) on the outer arc surface, and the longitudinal artificial defect groove (4) on the inner arc surface; The transverse artificial defect groove (1) on the outer arc surface is arranged on the outer side of the radial section of the curved portion (9), the transverse artificial defect groove (2) on the inner arc surface is arranged on the inner side of the radial section of the curved portion (9), the longitudinal artificial defect groove (3) on the outer arc surface is arranged on the outer side of the axial longitudinal section of the curved portion (9), and the longitudinal artificial defect groove (4) on the inner arc surface is arranged on the inner side of the axial longitudinal section of the curved portion (9); The straight tube portion (10) is provided with a longitudinal artificial defect groove (5) on the surface of the straight tube, a transverse artificial defect groove (6) inside the straight tube, a transverse artificial defect groove (7) on the surface of the straight tube, and a longitudinal artificial defect groove (8) inside the straight tube; The straight tube surface longitudinal artificial defect groove (5) is arranged on the outside of the axial longitudinal section of the straight tube portion (10), the straight tube inner side transverse artificial defect groove (6) is arranged on the inside of the axial longitudinal section of the straight tube portion (10), the straight tube surface transverse artificial defect groove (7) is arranged on the outside of the radial section of the straight tube portion (10), and the straight tube inner side longitudinal artificial defect groove (8) is arranged on the inside of the radial section of the straight tube portion (10).

4. The metal small-diameter tube multi-parameter comparison test block according to claim 1, characterized in that: The diameter of the curved tube is between 41.5 mm and 45.5 mm, and the wall thickness of the curved tube is between 3.5 mm and 7.5 mm.

5. A metal small-diameter tube multi-parameter comparison test block according to claim 4, characterized in that: The diameter of the curved tube is 43.5 mm, and the wall thickness of the curved tube is 5.5 mm.

6. The metal small-diameter tube multi-parameter comparison test block according to claim 1, characterized in that: The depth of the artificial defect groove is 0.2mm-0.7mm, the length of the artificial defect groove is 2mm-6mm, and the width of the artificial defect groove is 0.1mm-0.4mm.

7. A metal small-diameter tube multi-parameter comparison test block according to claim 6, characterized in that: The depth of the artificial defect groove is 0.4 mm, the length of the artificial groove is 4 mm, and the width of the artificial groove is 0.2 mm.