Test sample and test device thereof

Abstract

The utility model provides a test sample and a test device thereof, and belongs to the technical field of thermal fatigue test. The test sample is characterized by comprising a sample main body, the sample main body comprises a first through hole, and the first through hole is formed in the sample main body in a penetrating manner; the sample main body is symmetrically provided with concave grooves for arranging heat pipes by taking the first through hole as the center, the concave grooves are provided with concave openings, and the concave openings are provided with guide parts for conveniently arranging detection pipes; a cutting part and two arc-shaped parts are symmetrically arranged on the sample main body by taking the two concave parts as center lines, the cutting part is positioned in the center of the two arc-shaped parts, one side of each arc-shaped part is connected with the cutting part, and the other side of each arc-shaped part is connected with the corresponding concave part. The utility model has the advantage of improving the detection quality.

Description

Technical Field

[0001] This utility model belongs to the field of thermal fatigue testing technology, specifically a test specimen and its testing device. Background Technology

[0002] A thermal fatigue testing apparatus, typically referring to a thermal fatigue testing machine, is an instrument used in materials science specifically to evaluate the thermal fatigue performance of materials under high-temperature environments. The thermal fatigue testing machine assesses the durability and lifespan of materials and establishes reliable design criteria by simulating the cyclic loads and temperature changes experienced by materials under actual working conditions. Thermal fatigue testing fixtures require placing thermal fatigue test specimens to perform thermal fatigue testing on metallic materials. However, existing thermal fatigue test specimens use a hexagonal columnar design. This hexagonal columnar design has sharp edges, and after repeated use, due to the excessive intensity of the thermal fatigue test, the edges are prone to cracking, affecting the lifespan of the specimen. Furthermore, thermal fatigue test specimens using a hexagonal columnar design require coils on the outside to control the temperature; if cracking occurs, the specimen and the outer coil may fall off, affecting the quality and efficiency of the thermal fatigue test results. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a test sample and its testing device, which has the advantage of improving testing quality.

[0004] The objective of this utility model can be achieved through the following technical solution: a test specimen, comprising a specimen body;

[0005] The sample body includes a first through hole, which is disposed throughout the sample body;

[0006] The sample body is symmetrically provided with recessed grooves for laying heat pipes with the first through hole as the center. The recessed grooves have recessed openings, and the recessed openings have guide parts for facilitating the laying of test tubes.

[0007] The main body of the sample has a cutting part and two arc-shaped parts symmetrically arranged with the two concave parts as the center line. The cutting part is located at the center of the two arc-shaped parts. One side of the arc-shaped part is connected to the cutting part, and the other side is connected to the concave part.

[0008] Preferably, the width of each recessed groove gradually increases from the bottom of the groove towards the direction away from the bottom of the groove.

[0009] Preferably, the guide portion is designed as an arc, and the connection between the guide portion and the arc portion is also designed as an arc.

[0010] Preferably, the first through hole is disposed through the center of the sample body, and its internal radius is smaller than the radius from the center of the sample body to the bottom of the recessed groove on one side.

[0011] Preferably, a testing apparatus includes the above-described sample.

[0012] Compared with the prior art, the advantages of this utility model are: the arc-shaped part and the guide part of the outer wall of the sample adopt a circular arc design. The circular arc design has a better crack resistance and crack prevention function. By grinding the edges of the outer wall of the sample into a circular arc shape, it is beneficial to prevent the sample from cracking during thermal fatigue testing. At the same time, the circular arc shape is conducive to the outer coil being better fitted onto the outer wall of the sample, with a tighter fit, preventing the coil from falling off, which helps to extend the service life of the device and has strong practicality. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the sample body and the testing device in this utility model.

[0014] Figure 2 This is a structural diagram of the main body of the sample in this utility model.

[0015] Figure 3 This is a front view of the present invention.

[0016] In the figure, 2 is the main body of the sample; 21 is the first through hole; 3 is the recessed groove; 31 is the recessed opening; 32 is the guide part; 41 is the arc-shaped part; and 42 is the cutting part. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 3 As shown, a test specimen includes a specimen body 2;

[0019] The sample body 2 includes a first through hole 21, which is disposed through the sample body 2.

[0020] The sample body 2 is symmetrically provided with recessed grooves 3 for laying heat pipes with the first through hole 21 as the center. The recessed grooves 3 have recessed openings 31 and guide portions 32 for facilitating the laying of test tubes. By setting the recessed grooves 3, test tubes can be further laid. At the same time, the guide portions 32 facilitate the entry of test tubes into the recessed grooves 3 of the sample body 2, which is convenient and saves effort.

[0021] The sample body 2 has a cutting part 42 and two arc-shaped parts 41 symmetrically arranged with the two recesses as the center line. The cutting part 42 is located at the center of the two arc-shaped parts 41. One side of the arc-shaped part 41 is connected to the cutting part 42, and the other side is connected to the recesses.

[0022] The guide portion 32 is designed with an arc shape, and the connection between the guide portion 32 and the arc-shaped portion 41 is also designed with an arc shape.

[0023] The arc-shaped portion 41 and guide portion 32 on the outer wall of the sample adopt a circular arc design. The circular arc design has a good crack resistance and crack prevention function. By grinding the edges of the outer wall of the sample into a circular arc portion 41, it is beneficial to prevent the sample from cracking during thermal fatigue testing. At the same time, making it into a circular arc portion 41 is beneficial to make the outer coil better fit on the outer wall of the sample, with a tighter fit, preventing the coil from falling off, which helps to extend the service life of the device and has strong practicality.

[0024] By adopting the above structure, the guide part 32 and the connection part between the guide part 32 and the arc-shaped part 41 are designed with arcs. Since the strength of the arc design is stronger than that of the angular design, it is beneficial to prevent damage to the sample and extend the service life of the sample.

[0025] Specifically, such as Figures 1 to 3 As shown, the width of each recessed groove 3 gradually increases from the bottom of the groove towards the direction away from the bottom of the groove.

[0026] The above structure and design facilitate the insertion of the detection tube into the recessed groove 3 of the sample body 2, making it convenient and labor-saving.

[0027] like Figures 1 to 3 As shown, the first through hole 21 is disposed through the center of the sample body 2, and its inner radius is smaller than the radius from the center of the sample body 2 to the bottom of the recessed groove 3 on one side.

[0028] like Figures 1 to 3 As shown, a testing apparatus includes the aforementioned sample.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0031] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0032] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A test sample, characterized in that, The test sample body (2) comprises a first through hole (21) arranged through the test sample body (2); The test sample body (2) is symmetrically provided with a recessed groove (3) for arranging a heat pipe, the recessed groove (3) is provided with a recessed opening (31), and the recessed opening (31) is provided with a guide portion (32) for facilitating arrangement of a detection pipe; The test sample body (2) is symmetrically provided with a cutting portion (42) and two arc-shaped portions (41) with the two recessed portions as center lines, the cutting portion (42) is located at the center of the two arc-shaped portions (41), one side of the arc-shaped portion (41) is connected with the cutting portion (42), and the other side is connected with the recessed portion. The width of the recessed groove (3) gradually increases from the groove bottom to the direction away from the groove bottom.

2. A test sample according to claim 1, wherein, The guide portion (32) is designed as a circular arc, and the connection portion of the guide portion (32) and the arc-shaped portion (41) is also designed as a circular arc.

3. A test sample according to claim 1, wherein, The first through hole (21) is arranged through the center of the test sample body (2), and the inner radius is smaller than the radius from the center of the test sample body (2) to the groove bottom of the recessed groove (3) on one side.

4. A test sample according to claim 1, wherein The test sample comprises any one of claims 1-4.

5. A test device, characterized in that ​

Images