CN218003123U

CN218003123U - Combined sliding plate for high-temperature bending strength test

Info

Publication number: CN218003123U
Application number: CN202221941025.8U
Authority: CN
Inventors: 曾昊岚; 远帅杰
Original assignee: Luoyang Hete Instrument Equipment Co ltd
Current assignee: Luoyang Hete Instrument Equipment Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-12-09
Anticipated expiration: 2032-07-26

Abstract

The utility model relates to an anti rupture strength test of high temperature is with combined slide belongs to refractory material test technical field, combined slide includes slide body and at least a pair of track that is used for supporting the sample, has seted up at least a pair of constant head tank on the slide body, and track demountable installation is in the constant head tank, is provided with down the edge of a knife on the track, and the bottom surface of the top jack-up sample of edge of a knife down. Track demountable installation is on the slide body, in the test procedure, because orbital lower edge of a knife bears the stress in the test procedure simultaneously with the sample contact, the track generally damages earlier than the slide body, if meet proruption or unexpected condition in addition and lead to the track to damage, all can only change the track alone under the above circumstances, and the slide body normal use improves the utilization ratio of slide body to prolong its life. The problem of in the current high temperature rupture strength test, to track fixed mounting at the integral type slide of slide body, in case the track damages, lead to the unable technique that uses of whole slide is solved.

Description

Combined sliding plate for high-temperature bending strength test

Technical Field

The utility model relates to a refractory material tests technical field, concretely relates to combined slide is used in high temperature rupture strength test.

Background

The national standard GB/T3002-2017 'test method for high temperature rupture strength of refractory material', provides a test method for high temperature rupture strength of refractory products. Heating the sample to a test temperature at a certain heating rate, preserving the heat until the sample reaches a specified temperature distribution, and applying tensile stress to the sample at a certain loading rate until the sample is broken.

In a high-temperature environment, a three-point bending method or a four-point bending method is commonly used, a sample is usually placed on two rails of a sliding plate, a pressing rod applies pressure to the middle position of the upper part of the sample, the pressing rod applies stress to the sample at a constant loading rate until the sample is broken, and during loading, the rails are easy to generate stress concentration and are damaged before the sliding plate; or other accidents cause the track to be damaged, and the whole sliding plate can not be used due to the fact that the track is fixedly arranged on the sliding plate, so that waste is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the anti rupture strength test of current high temperature, have orbital integral type slide to current fixed mounting, in case the track damages, lead to the technical problem that whole slide can't be used, the utility model provides an anti rupture strength test of high temperature is with combined slide.

In order to realize the purpose, the utility model discloses a specific scheme do: the utility model provides a combined slide is used in test of high temperature rupture strength, this combined slide is applied to the high temperature furnace that heats the sample, is provided with high temperature resistant guide rail on the diapire of high temperature furnace, and this combined slide slidable mounting is on the guide rail, combined slide includes slide body and at least a pair of track that is used for supporting the sample, has seted up at least a pair of constant head tank on the slide body, and track demountable installation is in the constant head tank, is provided with down the edge of a knife on the track, and the bottom surface of the top jack-up sample of edge of a knife down.

As an optimized scheme of the combined type sliding plate applied to the high-temperature bending strength test, the positioning groove is a trapezoidal groove, and the lower part of the track is matched with the positioning groove.

As another optimization scheme applied to the combined sliding plate for the high-temperature bending strength test, the top ends of the lower knife edges on each pair of rails are positioned on the same horizontal plane.

As an optimized scheme applied to the combined sliding plate for the high-temperature bending strength test, the lower knife edge is arc-shaped and is in line contact with the bottom surface of the sample.

As an optimized scheme of the combined sliding plate applied to the test for the high-temperature breaking strength, the curvature radius of the lower knife edge is 5mm +/-1 mm or 2mm +/-0.5 mm.

As an optimized scheme applied to the combined sliding plate for the high-temperature flexural strength test, the distance from the top end of the lower cutting edge to the rail is dimension a, the height of the rail is dimension B, and the ratio of dimension a to dimension B is 1.

As an optimized scheme of the combined type sliding plate applied to the high-temperature bending strength test, the lower knife edge and the rail are integrally formed.

As an optimized scheme applied to the combined sliding plate for the high-temperature bending strength test, the sliding plate body, the track and the lower tool opening are all made of materials which cannot react with a sample under the high-temperature condition.

As an optimized scheme of the combined type sliding plate applied to the high-temperature bending strength test, the sliding groove used for being matched with the guide rail is formed in the bottom end of the sliding plate body.

As an optimized scheme applied to the combined sliding plate for the high-temperature bending strength test, the vertical section of the track is an isosceles triangle, the lower part of the track is a matching area matched with the positioning groove, an arc-shaped lower knife edge is formed at the top of the track, and the center of the track is provided with the positioning hole.

Has the beneficial effects that:

1. combined slide is used in high temperature bending strength test, track demountable installation is on the slide body, in the testing process, because the stress in the testing process is born simultaneously with the sample contact to orbital lower edge of a knife, the track generally damages earlier than the slide body, lead to the track to damage if meeting proruption or unexpected condition in addition, all can only change the track alone under the above-mentioned condition, slide body normal use, solve current track fixed mounting at the integral type slide of slide body, in case the track damages, lead to the technical problem that whole slide can't be used, improve the utilization ratio of slide body, and prolong its life.

2. Combined slide is used in high temperature bending strength test, in the manufacturing process, slide body and track are processed alone respectively, aggregate erection for the integral type slide of track fixed mounting at the slide body, reduced the preparation degree of difficulty, carry high yield, the integral type slide, in the manufacturing process if track or slide body damage all lead to the product unqualified.

3. Combined slide is used in high temperature bending strength test, when testing to high-accuracy end material, to track and lower knife edge material requirement than higher, this combined slide can adopt other technologies or material preparation to satisfy the track of requirement alone, and the slide body still adopts current material preparation, has reduced the preparation degree of difficulty of this combined slide.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the structure of the components of the present invention;

in the figure: 1. 101, a sliding plate body, 1011, positioning grooves, 1012, sliding grooves, 102, rails, 103, a lower knife edge, 1021, positioning holes, 2, a sample, 3, a high-temperature furnace, 4 and a guide rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The following embodiments are not specifically described in the following, and all of them are known in the art, such as the high temperature furnace 3, the guide rail 4 on the bottom wall of the high temperature furnace 3, the three-point bending method or the four-point bending method, the loading device and the pressing rod thereof.

Example 1

As shown in fig. 1 and 2, combined slide is used in high temperature bending strength test for in high temperature furnace 3, high temperature furnace 3 be the resistance furnace, scribble high temperature refractory material on high temperature furnace 3's the inner wall, and the fixed guide rail 4 that is provided with on high temperature furnace 3's the diapire, high temperature furnace 3's inside is provided with the loading device who is used for exerting pressure to sample 2, combined slide 1 slidable mounting is on guide rail 4, the spout 1012 that is used for matcing guide rail 4 is offered to combined slide 1 bottom.

In this embodiment, the combined sliding plate 1 includes a sliding plate body 101 and a pair of strip-shaped rails 102 for supporting a sample 2, and during the test process, the sliding plate body 101 supports the sample 2 and simultaneously bears the downward pressure of the loading device, and a pair of strip-shaped positioning grooves 1011 are formed in the sliding plate body 101, and the rails 102 are detachably mounted in the positioning grooves 1011, and are mounted on the rails 102 in place, and the lower portions of the rails are matched with the positioning grooves 1011. The track 102 can be installed in the positioning groove 1011 from top to bottom or the track 102 can be reversely detached, and the track 102 can also be pushed into or pushed out of the positioning groove 1011 along one end of the positioning groove 1011, so that the track 102 can be detachably installed. The sliding chute 1012 is located on the bottom surface of the sliding plate body 101, the sliding plate body 101 is slidably mounted on the guide rail 4 through the sliding chute 1012, the top end of the rail 102 is fixedly provided with the arc-shaped lower blade 103, the lower blade 103 and the rail 102 are integrally formed, the top end of the lower blade 103 jacks up the bottom surface of the sample 2, the midpoint of the sample 2 above the lower blade 103 located at the top end of each pair of rails 102 is a test area, and the distance between the two lower blades 103 is 125mm. In the actual test process, the combination type sliding plate 1 is firstly installed in a high-temperature furnace 3, then the sample 2 is placed on the lower knife edges 103, the distance between the lower knife edges 103 is selected to be 125mm, and the loading device is driven to act on the sample 2 through the pressing rod until the sample 2 is broken. The lower knife edge 103 on the track 102 contacts with the sample 2 and bears the stress in the test process, in most cases, the track 102 with the lower knife edge 103 is damaged before the sliding plate body 101, and the sliding plate body 101 can still be used normally, in this case, when the damaged track 102 and the lower knife edge 103 are replaced independently, the sliding plate body 101 is used continuously, the utilization rate of the sliding plate body is improved, and the service life of the sliding plate body is prolonged.

In this embodiment, because track 102 and slide body 101 are modular structure, in the manufacturing process, can make respectively, have reduced the processing preparation degree of difficulty for the integral type structure, if the normal processing or the assembly of other parts are not influenced to arbitrary unqualified part in the course of working, and the integral type structure in case arbitrary part is unqualified will lead to whole slide unqualified, and then modular structure has improved the off-the-shelf qualification rate greatly.

In this embodiment, the positioning groove 1011 is a trapezoidal groove, the lower portion of the rail 102 is also trapezoidal, and the rail 102 is installed in the positioning groove 1011 in a matching manner.

In this embodiment, the arc-shaped lower knife edge 103 is in line contact with the bottom surface of the sample 2 and used for jacking up the bottom surface of the sample 2, and the curvature radius of the lower knife edge 103 is 5mm ± 1mm or 2mm ± 0.5mm, so that the test requirements of different samples 2 are met.

In this embodiment, the distance from the top end of the lower blade 103 to the rail 102 is dimension a, the height of the rail 102 is dimension B, and the ratio of dimension a to dimension B is 1.

In this embodiment, the sliding plate body 101, the rail 102 and the lower blade 103 are made of materials that cannot chemically or physically react with the sample 2 under a high temperature condition, so as to prevent that any one of the sliding plate body 101, the rail 102 and the lower blade 103 and the sample 2 from chemically or physically reacting in a high temperature test process, which results in that a high temperature bending strength test cannot be performed, the sliding plate body 101, the rail 102 and the lower blade 103 may be made of high temperature resistant materials with the same material, or made of high temperature resistant materials with different materials, wherein the sliding plate body 101 may be made of corundum mullite or silicon carbide.

Example 2

This embodiment is an improved scheme based on embodiment 1, and the main structure thereof is the same as embodiment 1, and the improvement point is that: as shown in fig. 2, the vertical section of the rail 102 is an isosceles triangle, the lower portion of the rail 102 is a matching area matched with the positioning groove 1011, an arc-shaped lower knife edge 103 is formed at the top of the rail 102, the top end of the lower knife edge 103 is used for jacking up the sample 2, a positioning hole 1021 is formed in the center of the rail 102, and the positioning hole 1021 is a circular hole.

Claims

1. The utility model provides a combined slide is used in test of high temperature rupture strength, this combined slide (1) is applied to and carries out high temperature furnace (3) that heats to sample (2), is provided with high temperature resistant guide rail (4) on the diapire of high temperature furnace (3), and this combined slide (1) slidable mounting is on guide rail (4), its characterized in that: the combined sliding plate (1) comprises a sliding plate body (101) and at least one pair of rails (102) used for supporting a sample (2), at least one pair of positioning grooves (1011) are formed in the sliding plate body (101), the rails (102) are detachably mounted in the positioning grooves (1011), a lower knife edge (103) is arranged on the rails (102), and the top end of the lower knife edge (103) jacks up the bottom surface of the sample (2).

2. The combined sliding plate for the high-temperature flexural strength test according to claim 1, wherein: the positioning groove (1011) is a trapezoidal groove, and the lower part of the track (102) is matched with the positioning groove (1011).

3. The combination type skateboard for testing high temperature flexural strength according to claim 1, wherein: the top ends of the lower knife edges (103) on each pair of the rails (102) are positioned at the same horizontal plane.

4. The combination type skateboard for testing high temperature flexural strength according to claim 1, wherein: the lower knife edge (103) is arc-shaped, and the lower knife edge (103) is in line contact with the bottom surface of the sample (2).

5. The combination type skateboard for testing high temperature flexural strength according to claim 4, wherein: the curvature radius of the lower knife edge (103) is 5mm +/-1 mm or 2mm +/-0.5 mm.

6. The combination type skateboard for testing high temperature flexural strength according to claim 1, wherein: the distance from the top end of the lower knife edge (103) to the rail (102) is a dimension A, the height of the rail (102) is a dimension B, and the ratio of the dimension A to the dimension B is 1-10.

7. The combination type skateboard for testing high temperature flexural strength according to claim 1, wherein: the lower knife edge (103) and the rail (102) are integrally formed.

8. The combination type skateboard for testing high temperature flexural strength according to claim 1, wherein: the sliding plate body (101), the track (102) and the lower knife edge (103) are all made of materials which cannot react with the sample (2) under the high-temperature condition.

9. The combined sliding plate for the high-temperature flexural strength test according to claim 1, wherein: the bottom end of the sliding plate body (101) is provided with a sliding groove (1012) used for matching the guide rail (4).

10. The combined sliding plate for the high-temperature flexural strength test according to claim 1, wherein: the vertical section of the track (102) is an isosceles triangle, the lower part of the track (102) is a matching area matched with the positioning groove (1011), an arc-shaped lower knife edge (103) is formed at the top of the track (102), and a positioning hole (1021) is formed in the center of the track (102).