Stretching clamp for strip-shaped film sample in high-temperature environment

Abstract

The invention relates to a tensile fixture for a strip-shaped film sample in a high-temperature environment, which comprises tensile fixtures and a sample loading table, and a film sample is arranged between the tensile fixtures; the stretching clamp comprises an out-of-furnace joint, a heat insulation disc and a chuck rod, and a round hole is formed in the heat insulation disc; when in use, the pressing plate bottom plate is placed in the sample loading table, the sample loading table is matched with the pressing plate bottom plate, it can be guaranteed that the pressing plate bottom plate is located on the same axis, the sample loading table is matched with the pressing plate bottom plate, the sample loading table is matched with the sample loading table, the sample loading table is matched with the sample loading table, and the sample loading table is matched with the sample loading table. Then a straight ruler and a marking pen are used for drawing a vertical straight line on the pressing plate bottom plate, a strip-shaped film sample is placed on the pressing plate bottom plate along the straight line, the two ends of the strip-shaped film sample are adhered to the pressing plate bottom plate through adhesive tapes, and the lower portion of the second pressing plate and the lower portion of the pressing plate bottom plate are both rounded off. And a thin film sample can be prevented from being broken at the shallow opening.

Description

Technical Field

[0001] The invention relates to the technical field of stretching fixtures, and mainly to a stretching fixture for a strip-shaped film sample in a high-temperature environment. Background Art

[0002] In the field of material mechanical property testing, there is usually a tensile performance test. The tensile test is used to obtain material strength and plasticity performance data. It has important application value and reference for design and material selection, development of new materials, material procurement and acceptance, product quality control, equipment safety and evaluation. Some are directly based on the results of tensile tests. Depending on the different working conditions of the material, it is sometimes necessary to test the performance of some ultra-thin specimens in a high temperature environment. When using ordinary clamps for tensile tests, there are currently cases of clamping slippage and broken jaws. Summary of the invention

[0003] In view of the above problems, the present invention provides a stretching fixture for strip-shaped film samples in a high temperature environment.

[0004] The specific technical solutions are as follows:

[0005] A stretching fixture for a strip-shaped film sample in a high-temperature environment comprises a stretching fixture and a sample loading platform, wherein the number of the stretching fixtures is two and they are axially symmetrically arranged; a film sample is arranged between the stretching fixtures; the stretching fixture comprises an external furnace joint, an insulation disk and a chuck rod, the insulation disk is provided with a circular hole, one end of the furnace head joint is provided with a pin hole and a ferrule-type water nozzle, and the ferrule-type water nozzle is connected to the furnace head joint by threads; one end of the chuck rod passes through the circular hole on the insulation disk and is threadedly connected to the external furnace joint, while clamping the insulation disk, and the other end is provided with a film sample chuck.

[0006] The number of film samples is a strip-like structure.

[0007] The furnace head joint is connected to the main machine through a pin hole.

[0008] The film sample chuck is provided with a pressure plate mounting groove, and a pressure plate bottom plate is provided in the pressure plate mounting groove. The pressure plate bottom plate is fixedly connected to the film sample chuck through a pressure plate pin, and a pressure plate 1 and a pressure plate 2 are provided on the pressure plate bottom plate. The pressure plate 1 and the pressure plate 2 are installed side by side on the pressure plate bottom plate and fixed by tightening screws.

[0009] The second pressing plate and the bottom of the pressing plate bottom plate are both rounded structures.

[0010] The pressing plate bottom plate is used in conjunction with the sample loading platform.

[0011] The beneficial effects of the present invention are:

[0012] When in use, place the round hole of the insulation plate through the chuck rod, and the chuck rod is threadedly connected to the external joint of the furnace, and the insulation plate is clamped at the same time, and then it is connected to the main machine through the pin and locked with a round nut. Put the pressure plate bottom plate into the sample loading table. The sample loading table and the pressure plate bottom plate are in a matching relationship, which can ensure that the pressure plate bottom plate is on the same axis. Then use a ruler and a marker to draw a vertical straight line on the pressure plate bottom plate, and place the strip film sample on the pressure plate bottom plate along the straight line. The two ends are glued to the pressure plate bottom plate with tape. The clamping screw first connects the pressure plate 2 with the pressure plate bottom plate, and clamps the strip film sample. Then remove the tape at both ends and connect the pressure plate 1 with the pressure plate bottom plate with the clamping screw. Clamp the two ends of the strip film sample. The pressure plate 2 and the lower part of the pressure plate bottom plate are both chamfered to prevent the sample from breaking at the shallow mouth. Then take the entire installed film sample out of the sample loading table, and connect the pressure plate bottom plate with the film sample chuck with the pressure plate pin. During the test, due to the rounded corners of the second pressing plate and the lower part of the pressing plate bottom plate, and the sample being in a vertical state, the effect of the film sample breaking at the shallow mouth can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the present invention.

[0014] Figure 2 It is a side view of the present invention.

[0015] In the figure: stretching fixture 1, sample loading platform 2, film sample 3, external joint of furnace 4, heat insulation plate 5, chuck rod 6, pin hole 7, ferrule type water nozzle 8, film sample chuck 9, pressure plate mounting groove 10, pressure plate bottom plate 11, pressure plate pin 12, pressure plate one 13, pressure plate two 14, clamping screw 15. DETAILED DESCRIPTION

[0016] In order to make the technical solution of the present invention clearer and more explicit, the present invention is further described below in conjunction with the accompanying drawings. Any equivalent replacement of the technical features of the technical solution of the present invention and any solution derived by conventional reasoning shall fall within the protection scope of the present invention.

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] A stretching fixture for a strip-shaped thin film sample in a high-temperature environment comprises a stretching fixture 1 and a sample loading platform 2, wherein the number of the stretching fixtures 1 is two and they are axially symmetrically arranged; a thin film sample 3 is arranged between the stretching fixtures 1; the stretching fixture 1 comprises an external furnace joint 4, an insulating disk 5 and a chuck rod 6, a circular hole is arranged on the insulating disk 5, a pin hole 7 and a ferrule-type water nozzle 8 are arranged at one end of the furnace head joint 4, and the ferrule-type water nozzle 8 is connected to the furnace head joint 5 by threads; one end of the chuck rod 6 passes through the circular hole on the insulating disk 5 and is threadedly connected to the external furnace joint 4, while clamping the insulating disk 5, and a thin film sample chuck 9 is arranged at the other end.

[0019] The number of the film samples 3 is a strip-shaped structure.

[0020] The furnace head joint 4 is connected to the main machine through a pin hole 7.

[0021] The film sample chuck 9 is provided with a pressure plate mounting groove 10, and a pressure plate bottom plate 11 is provided in the pressure plate mounting groove 10. The pressure plate bottom plate 11 is fixedly connected to the film sample chuck 9 through a pressure plate pin 12. A pressure plate 13 and a pressure plate 2 14 are provided on the pressure plate bottom plate 11. The pressure plate 13 and the pressure plate 2 14 are installed side by side on the pressure plate bottom plate 11 and fixed by a clamping screw 15.

[0022] The second pressing plate 14 and the bottom of the pressing plate bottom plate 11 are both rounded structures.

[0023] The pressing plate bottom plate 11 is used in conjunction with the sample loading platform 2 .

[0024] The steps are as follows:

[0025] When in use, the pressing plate bottom plate 11 is placed in the sample loading platform 2, and the sample loading platform 2 and the pressing plate bottom plate 11 are in a matching relationship, which can ensure that the pressing plate bottom plate 11 is on the same axis.

[0026] When in use, use a ruler and a marker to draw a vertical straight line on the pressure plate bottom plate 11, place the strip film sample 3 on the pressure plate bottom plate 11 along the straight line, and stick the two ends to the pressure plate bottom plate 11 with tape. Use the clamping screws 15 to first connect the pressure plate 2 14 with the pressure plate bottom plate 11 to clamp the strip film sample 3. Then, remove the tapes at both ends and use the clamping screws 15 to connect the pressure plate 1 13 with the pressure plate bottom plate 11 to clamp the two ends of the strip film sample 3. The pressure plate 2 14 and the lower part of the pressure plate bottom plate 11 are both chamfered to prevent the sample from breaking at a shallow mouth.

[0027] When in use, the entirety of the film sample 3 is taken out from the sample loading platform 2 , and the pressing plate bottom plate 11 is connected to the film sample clamp 9 by the pressing plate pin 12 .

[0028] When in use, connect the water pipe to the ferrule-type water nozzle, let in water, close the atmospheric furnace, and wait for the temperature to rise before conducting the test.

[0029] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", "all around" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A stretching fixture for a strip-shaped thin film sample in a high temperature environment, comprising a stretching fixture (1) and a sample loading platform (2), wherein: There are two stretching clamps (1) which are axially symmetrically arranged; a thin film sample (3) is arranged between the stretching clamps (1); the stretching clamp (1) comprises an external furnace joint (4), an insulating plate (5) and a chuck rod (6); a round hole is arranged on the insulating plate (5); a pin hole (7) and a ferrule-type water nozzle (8) are arranged at one end of the furnace head joint (4); the ferrule-type water nozzle (8) is connected to the furnace head joint (5) by threads; one end of the chuck rod (6) passes through the round hole on the insulating plate (5) and is threadedly connected to the external furnace joint (4), thereby clamping the insulating plate (5); a thin film sample chuck (9) is arranged at the other end.

2. A tensile fixture for a strip-shaped film sample in a high temperature environment as claimed in claim 1, characterized in that: The number of the film samples (3) is a strip-shaped structure.

3. A tensile fixture for a strip-shaped film sample under a high temperature environment as claimed in claim 1, characterized in that: The furnace head joint (4) is connected to the main machine by means of a pin hole (7).

4. A tensile fixture for a strip-shaped film sample in a high temperature environment as claimed in claim 1, characterized in that: The film sample chuck (9) is provided with a pressure plate installation groove (10), and a pressure plate base plate (11) is provided in the pressure plate installation groove (10). The pressure plate base plate (11) is fixedly connected to the film sample chuck (9) via a pressure plate pin (12), and a pressure plate 1 (13) and a pressure plate 2 (14) are provided on the pressure plate base plate (11). The pressure plate 1 (13) and the pressure plate 2 (14) are installed side by side on the pressure plate base plate (11) and are fixed via a clamping screw (15).

5. A tensile fixture for a strip-shaped film sample in a high temperature environment as claimed in claim 1, characterized in that: The second pressing plate (14) and the lower part of the pressing plate bottom plate (11) are both rounded structures.

6. A tensile fixture for a strip-shaped film sample in a high temperature environment as claimed in claim 1, characterized in that: The pressing plate bottom plate (11) is used in conjunction with the sample loading platform (2).

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