CN214150588U

CN214150588U - Simple tool for testing ablation performance of material

Info

Publication number: CN214150588U
Application number: CN202022674824.0U
Authority: CN
Inventors: 孙笑然; 赵华丽; 强福智; 胡俊杰; 彭琴; 伍政; 陈亚格; 李洋
Original assignee: Hubei Institute of Aerospace Chemical Technology
Current assignee: Hubei Institute of Aerospace Chemical Technology
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-09-07
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to a simple tool for testing ablation performance of materials, belonging to the field of ablation tests; comprises an inclined plate, a sample clamping block, a material sample to be detected and a screw rod; wherein the inclined plate is obliquely arranged relative to the horizontal plane; the upper surface of the inclined plate is provided with a slideway along the axial direction; the sample clamping block is arranged on the upper surface of the inclined plate; the lower surface of the sample clamping block is in sliding fit with the slideway; the upper surface of the sample clamping block is provided with a groove corresponding to the shape of the material sample to be detected; the material sample to be tested is placed in the groove of the sample clamping block, so that the material sample to be tested is limited; the screw rod is arranged on the lower surface of the sample clamping block; the sample clamping block is fixed and limited on the upper surface of the inclined plate through a screw; the utility model discloses frock simple structure easily assembles and dismantles, and circulated use.

Description

Simple tool for testing ablation performance of material

Technical Field

The utility model belongs to the ablation test field relates to a simple and easy frock for testing material ablation performance.

Background

Ablation performance is one of the important properties for heat protection, thermal insulation, cladding materials and ceramic materials in general. When the ablation performance of the material is considered, the conventional test method in the industry is an oxyacetylene ablation test method specified by GJB 323B-2018: the material to be tested is made into a standard cylindrical solid sample with phi 30mm multiplied by 10mm, oxyacetylene flame is used as a heat source during testing, and the inspected surface of the material sample to be tested is 90 degrees to the flame. And 3. plus or minus. And (4) an angle. The test method can reflect the ablation rate, the back temperature and the ablation appearance of the material sample to be tested in the direction perpendicular to the flame direction, and has standardized contrast.

However, in practical use of heat protection, the material is usually subjected to ablation and scouring from flame at a non-perpendicular angle, so that during the development work of the ablated material, the working condition that the material is ablated and scoured by flame at the non-perpendicular angle needs to be further simulated on the basis of a standard specified test method. Most of the existing ablation machines do not have the ablation angle adjusting function.

The chinese utility model patent with publication numbers CN101393098A and CN209513678U discloses two material ablation detection devices and ablation material testing tools, which can more comprehensively characterize the ablation performance of the material and are closer to the real working condition, but the preparation process of the test piece is relatively complex and the cost is relatively high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be: the defects of the prior art are overcome, the simple tool for testing the ablation performance of the material is provided, the tool is simple in structure, easy to assemble and disassemble and recyclable.

The utility model provides a technical scheme be:

a simple tool for testing ablation performance of a material comprises an inclined plate, a sample clamping block, a material sample to be tested and a screw rod; wherein the inclined plate is obliquely arranged relative to the horizontal plane; the upper surface of the inclined plate is provided with a slideway along the axial direction; the sample clamping block is arranged on the upper surface of the inclined plate; the lower surface of the sample clamping block is in sliding fit with the slideway; the upper surface of the sample clamping block is provided with a groove corresponding to the shape of the material sample to be detected; the material sample to be tested is placed in the groove of the sample clamping block, so that the material sample to be tested is limited; the screw rod is arranged on the lower surface of the sample clamping block; the sample clamping block is fixed and limited on the upper surface of the inclined plate through the screw.

In the above-mentioned simple and easy frock for testing material ablation performance, through the position of slide adjustment sample clamping block on the swash plate, after the adjustment, fix through the screw rod.

In the simple tool for testing the ablation performance of the material, the inclined plate and the horizontal plane form an included angle theta; the value range of theta is more than 0 degree and less than or equal to 90 degrees; when theta is 90 degrees, the test condition is the conventional oxyacetylene ablation test condition; when the angle theta is more than 0 degree and less than 90 degrees, the flame inclined blowing ablation working condition of the oxyacetylene nozzle is adopted.

In the above-mentioned simple and easy frock for testing material ablation performance, through adjusting the position of sample clamping piece on the slide, the realization aims at the material sample that awaits measuring oxyacetylene shower nozzle.

In the simple tool for testing the ablation performance of the material, the adjustment of the distance L between the surface of the material sample to be tested and the oxyacetylene spray head is realized by adjusting the included angle theta between the inclined plate and the horizontal plane.

In the simple tool for testing the ablation performance of the material, L is 5-10 cm.

In foretell a simple and easy frock for testing material ablation performance, after the material sample that awaits measuring aligns the oxyacetylene shower nozzle, constantly adjust the contained angle theta of adjustment swash plate and horizontal plane, realize under different interval L, the ablation condition test of oxyacetylene shower nozzle flame to the material sample surface that awaits measuring.

After the test is finished, the attached residual ablation material on the tool is cleaned, and the ablation test of other material samples to be tested by repeatedly using the tool is realized.

Compared with the prior art, the utility model beneficial effect be:

(1) the utility model can fully utilize the conventional oxyacetylene ablation test equipment, expand the function of the conventional oxyacetylene ablation test equipment and simulate various ablation working conditions of the material to be tested;

(2) the size of the utility model can be flexibly adjusted according to actual needs, and the processing is easy; the sample preparation and experiment preparation process is simple, the sample consumption is small, and the time cost and the economic cost of the experiment are saved;

(3) the utility model discloses simple structure, can be in cyclic utilization many times after the clearance, and but a plurality of different sample groove of same bottom plate adaptation, economic environmental protection.

Drawings

FIG. 1 is a front view of the simple tooling of the present invention;

fig. 2 is a side view of the simple tool of the present invention.

Detailed Description

The present invention will be further explained with reference to the following examples.

The utility model provides a simple and easy frock for testing material ablation performance, it can the current conventional oxyacetylene ablation test device of make full use of to lower cost simulation awaits measuring material sample and flame multiple operating mode when being different angles, different distances, tests the ablation performance of material, is applicable to the material research and development in-process and surveys the instant of material.

A simple tool for testing the ablation performance of a material is shown in figure 1 and comprises an inclined plate 1, a sample clamping block 2, a material sample to be tested 3 and a screw rod 5; wherein, the inclined plate 1 is obliquely arranged relative to the horizontal plane; the upper surface of the inclined plate 1 is provided with a slideway 4 along the axial direction; the sample clamping block 2 is arranged on the upper surface of the inclined plate 1; the lower surface of the sample clamping block 2 is in sliding fit with the slide way 4; the upper surface of the sample clamping block 2 is provided with a groove corresponding to the shape of the material sample 3 to be detected; the material sample 3 to be detected is placed in the groove of the sample clamping block 2, so that the material sample 3 to be detected is limited; the screw 5 is arranged on the lower surface of the sample clamping block 2; the sample clamping block 2 is fixed and limited on the upper surface of the inclined plate 1 through a screw 5.

The position of the sample clamping block 2 on the inclined plate 1 is adjusted through the slide way 4, and after the adjustment is finished, the sample clamping block is fixed through the screw rod 5.

As shown in fig. 2, the inclined plate 1 forms an included angle θ with the horizontal plane; the value range of theta is more than 0 degree and less than or equal to 90 degrees; when theta is 90 degrees, the test condition is the conventional oxyacetylene ablation test condition; when the angle theta is more than 0 degree and less than 90 degrees, the flame inclined blowing ablation working condition of the oxyacetylene nozzle is adopted. The included angle theta between the inclined plate 1 and the horizontal plane is equal to the included angle between the oxyacetylene flame and the surface of the material sample 3 to be detected.

The material sample 3 to be detected is aligned to the oxyacetylene nozzle by adjusting the position of the sample clamping block 2 on the slideway 4. The adjustment of the distance L between the surface of the material sample 3 to be measured and the oxyacetylene spray head is realized by adjusting the included angle theta between the inclined plate 1 and the horizontal plane. The adjustment range of L is 5-10 cm.

After the material sample 3 to be tested is aligned with the oxyacetylene nozzle, the included angle theta between the inclined plate 1 and the horizontal plane is continuously adjusted and adjusted, so that the ablation condition test of the oxyacetylene nozzle flame on the surface of the material sample 3 to be tested is realized at different intervals L.

After the test is finished, the residual ablation material attached to the tool is cleaned, and the ablation test of other material samples 3 to be tested by repeatedly using the tool is realized.

The use process of frock.

1. Under the condition of shutdown of the oxyacetylene ablation tester, the inclined plate 1 is placed in front of the oxyacetylene spray head according to the direction of figure 2.

2. The method comprises the steps of selecting a proper sample clamping block 2, adjusting the position of the sample clamping block 2 on a slide way 4, and fixedly installing the sample clamping block 2 on the upper surface of an inclined plate 1 through a screw rod 5.

3. The material sample 3 to be tested is inserted into the groove of the sample clamping block 2.

4. And adjusting the included angle theta between the base plate 1 and the horizontal plane, and adjusting the distance from the material sample 3 to be tested to the oxyacetylene spray head so as to achieve the expected test conditions.

5. And recording the size of the theta angle and the distance from the surface of the material sample 3 to be measured to the oxyacetylene spray head.

7. An ablation test was performed.

8. And after the test, taking down the sample of the material to be tested, cleaning the residual ablation material attached to the tool, and then repeatedly using the tool to perform the ablation test on other samples.

Although the present invention has been disclosed in the preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the above-mentioned method and technical contents to make possible changes and modifications to the technical solution of the present invention without departing from the spirit and scope of the present invention, therefore, any simple modification, equivalent changes and modifications made to the above embodiments by the technical substance of the present invention all belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a simple and easy frock for testing material ablation performance which characterized in that: comprises an inclined plate (1), a sample clamping block (2), a material sample to be tested (3) and a screw (5); wherein the inclined plate (1) is obliquely arranged relative to the horizontal plane; the upper surface of the inclined plate (1) is provided with a slideway (4) along the axial direction; the sample clamping block (2) is arranged on the upper surface of the inclined plate (1); the lower surface of the sample clamping block (2) is in sliding fit with the slide way (4); the upper surface of the sample clamping block (2) is provided with a groove corresponding to the shape of the material sample (3) to be detected; the material sample (3) to be tested is placed in the groove of the sample clamping block (2) to limit the material sample (3) to be tested; the screw rod (5) is arranged on the lower surface of the sample clamping block (2); the sample clamping block (2) is fixed and limited on the upper surface of the inclined plate (1) through a screw (5).

2. The simple tool for testing the ablation performance of the material according to claim 1, characterized in that: the position of the sample clamping block (2) on the inclined plate (1) is adjusted through the slide way (4), and after the adjustment is finished, the sample clamping block is fixed through the screw rod (5).

3. The simple tool for testing the ablation performance of the material according to claim 2, characterized in that: the inclined plate (1) and the horizontal plane form an included angle theta; the value range of theta is more than 0 degree and less than or equal to 90 degrees; when theta is 90 degrees, the test condition is the conventional oxyacetylene ablation test condition; when the angle theta is more than 0 degree and less than 90 degrees, the flame inclined blowing ablation working condition of the oxyacetylene nozzle is adopted.

4. The simple tool for testing the ablation performance of the material according to claim 3, characterized in that: the sample (3) of the material to be detected is aligned to the oxyacetylene spray head by adjusting the position of the sample clamping block (2) on the slideway (4).

5. The simple tool for testing the ablation performance of the material according to claim 4, characterized in that: the adjustment of the distance L between the surface of the material sample (3) to be measured and the oxyacetylene spray head is realized by adjusting the included angle theta between the inclined plate (1) and the horizontal plane.

6. The simple tool for testing the ablation performance of the material according to claim 5, characterized in that: and the L is 5-10 cm.

7. The simple tool for testing the ablation performance of the material according to claim 6, characterized in that: after the material sample (3) to be tested is aligned with the oxyacetylene nozzle, the included angle theta between the inclined plate (1) and the horizontal plane is continuously adjusted and adjusted, so that the ablation condition test of the oxyacetylene nozzle flame on the surface of the material sample (3) to be tested is realized at different intervals L.

8. The simple tool for testing the ablation performance of the material according to claim 7, characterized in that: after the test is finished, the residual ablation material attached to the tool is cleaned, and the ablation test of other material samples (3) to be tested by repeatedly using the tool is realized.