High-temperature peeling test device

Abstract

The utility model relates to the technical field of material performance testing, in particular to a high-temperature peeling test device which comprises a heating block, an upper clamp, a lower clamp, a test plate, a sliding table, a base and a force value sensor. The other end of the test plate extends into the heating space of the heating block, one end of the sample is adhered to the test plate, the other end of the sample is adhered to the upper clamp, and the force value sensor is connected with the upper clamp. The high-temperature peel strength testing device can test the peel strength of a material under a high-temperature condition, has the advantages of accurate temperature, high testing accuracy, simplicity and convenience in operation and the like, and can be widely applied to the fields of plastic films, composite films, self-adhesive films, high polymer materials, adhesives and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of material performance testing, in particular to a test device for testing the peel strength of materials under high-temperature conditions, that is, a high-temperature peel test device. Background Technique

[0002] High-temperature peel test is an important means to evaluate the adhesion strength and peel performance of materials under high-temperature conditions. Traditional peel test devices often cannot accurately simulate the performance of materials in high-temperature working environments, resulting in inaccurate test results and unable to meet the actual application requirements. Therefore, it is of great significance to develop a test device that can accurately test the peel strength of materials under high-temperature conditions. Content of the Utility Model

[0003] Aiming at the defects of the prior art, the utility model provides a high-temperature peel test device to realize the peel strength test of materials under high-temperature conditions.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a high-temperature peel test device, including a heating block, an upper fixture, a lower fixture, a test plate, a sliding table, a base and a force value sensor. The sliding table is slidably arranged relative to the base. The lower fixture is fixed on the sliding table. One end of the test plate is connected to the lower fixture, and the other end of the test plate extends into the heating space of the heating block. One end of the specimen is adhered to the test plate, and the other end of the specimen is adhered to the upper fixture. The force value sensor is connected to the upper fixture.

[0005] Further, the heating block includes a movable heating block and a fixed heating block which are arranged to be opened and closed. Heating grooves are provided on the opposite surfaces of the movable heating block and the fixed heating block. During the test, the test plate contacts the groove wall of the fixed heating block, so that the temperature of the test plate can quickly and accurately reach the test temperature. When the movable heating block is closed relative to the fixed heating block, the two heating grooves form a heating space.

[0006] Further, the movable heating block and the fixed heating block are connected by a damping hinge.

[0007] Further, heating components and a temperature sensor are arranged in the heating block to control the temperature of the heating block.

[0008] Further, a slide rail is provided on the base, and a slide groove is provided on the sliding table and slidably cooperates with the slide rail.

[0009] Further, a strip-shaped groove is opened on the sliding table in the same direction as the sliding direction of the sliding table. A locking handle passes through the strip-shaped groove and is threadedly connected to the base. The part of the locking handle above the strip-shaped groove is a pressing part with a diameter larger than the inner diameter of the strip-shaped groove. The sliding table and the base are fixed by using the locking handle. The length of the strip-shaped groove limits the sliding distance of the sliding table and prevents the sliding table from detaching from the slide rail.

[0010] Further, it also includes a frame. The base and the heating block are both fixed on the frame. A moving crossbeam is provided on the frame, and the moving crossbeam is connected to the force value sensor.

[0011] Further, a space is reserved between the inner wall of the heating tank and the specimen space to prevent the specimen on the test plate from directly touching the heating block and affecting the test data.

[0012] The beneficial effects of the present utility model: By setting the heating block, the heating block heats the environment where the specimen is located to create a high-temperature environment for specimen testing. At the same time, fixtures, sliding tables, bases, etc. are provided to realize the clamping of the experiment, and a force value sensor is provided to detect the force when the specimen is peeled off. Therefore, this device can realize the peeling strength test of materials under high-temperature conditions. This device has the advantages of high test accuracy, simple operation, etc., and can be widely applied to fields such as plastic films, composite films, self-adhesive films, polymer materials, adhesives, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the device described in Embodiment 1;

[0014] Figure 2 It is a schematic diagram when the sliding table of the device described in Embodiment 1 is pulled out;

[0015] Figure 3 It is a schematic diagram when the device described in Embodiment 1 is conducting a test;

[0016] Figure 4 It is a schematic diagram of the specimen adhered to the test plate;

[0017] Figure 5 It is a schematic structural diagram of the device described in Embodiment 2;

[0018] Figure 6 It is a schematic diagram when the device described in Embodiment 2 is conducting a test;

[0019] In the figure: 1, movable heating block; 2, damping hinge; 3, upper fixture; 4, support frame; 5, fixed heating block; 6, test plate; 7, lower fixture; 8, base; 9, sliding table; 10, locking handle; 11, slide rail; 12, strip-shaped groove; 13, heating tank; 14, specimen; 15, force value sensor; 16, moving crossbeam; 17, frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0021] Embodiment 1

[0022] This embodiment discloses a high-temperature peeling test device, as Figure 1 、 2, as shown in FIGS. 3, it includes a heating block, an upper fixture 3, a lower fixture 7, a test plate 6, a sliding table 9, a base 8, a force value sensor and a support frame 4. The base 8 is placed horizontally, the support frame 4 is located at one end of the base 8 and is vertically arranged relative to the base 8. The sliding table 9 is located above the base 8 and is slidably arranged relative to the base 8. The lower fixture 7 is fixed on the sliding table 9. One end of the test plate 6 is connected to the lower fixture 7, and the other end of the test plate 6 extends into the heating space of the heating block. One end of the specimen 14 is adhered to the test plate 6, and the other end of the specimen 14 is adhered to the upper fixture 3. The force value sensor is connected to the upper fixture 3.

[0023] In this embodiment, the heating block includes a movable heating block 1 and a fixed heating block 5 which are arranged to open and close. Heating grooves 13 are provided on the opposite surfaces of the movable heating block 1 and the fixed heating block 5. When the movable heating block 1 is closed relative to the fixed heating block 5, the two heating grooves 13 form a heating space. Specifically, the movable heating block 1 and the fixed heating block 5 are connected by a damping hinge 2, and the opening and closing arrangement ensures that the heating block is in a closed state during the test.

[0024] In this embodiment, heating components and a temperature sensor are provided in the heating block for controlling the temperature of the heating block. The heating components can be heating rods, heating wires, etc.

[0025] In this embodiment, the sliding arrangement between the base 8 and the sliding table 9 is realized through a slide rail and a slide groove. Specifically, a slide rail 11 is provided on the base 8, and a slide groove on the sliding table 9 is slidably engaged with the slide rail 11. And a strip-shaped groove 12 is provided to control the sliding distance, and a locking handle 10 is provided to fix the sliding table 9. Specifically, a strip-shaped groove 12 in the same direction as the sliding direction of the sliding table 9 is opened on the sliding table 9, and the locking handle 10 passes through the strip-shaped groove 12 and is threadedly connected to the base 8. The part of the locking handle 10 above the strip-shaped groove 12 is a pressing part with a diameter larger than the inner diameter of the strip-shaped groove 12. The sliding table 9 is fixed to the base 8 by using the locking handle 10, and the length of the strip-shaped groove 12 limits the sliding distance of the sliding table 9 to prevent the sliding table 9 from detaching from the slide rail 11.

[0026] In this embodiment, a space is reserved between the inner wall of the heating groove 13 and the space of the specimen 14 to prevent the specimen on the test plate 6 from directly touching the heating block and affecting the test data.

[0027] As Figure 4 shown, after one end of the specimen 14 is adhered to the test plate 6, it is folded back, then led upward through the heating block, and finally the other end is adhered to the upper fixture 3.

[0028] When conducting the test, set the heating temperature according to the test requirements, pull out the sliding table 9 to make the test plate 6 away from the heating block, paste the specimen 14 on the test plate 6. After fixing the specimen 14, push the sliding table 9 back to make the test plate 6 contact with the fixed heating block 5, so that the temperature of the test plate 6 quickly and accurately reaches the test temperature, then lock the locking handle 10 and close the movable heating block 1 to start the test.

[0029] Example 2

[0030] In this embodiment, as Figure 5 、 6 shown, the device further includes a frame 17, and the base 8 and the heating block are both fixed on the frame 17. A moving crossbeam 16 is provided on the frame 17, and the moving crossbeam 16 is connected to a force value sensor 15.

[0031] The moving crossbeam 16 can move up and down along the vertical direction of the frame. After the specimen 14 is clamped, the moving crossbeam 16 moves upward, driving the specimen 14 to peel off from the test plate 6. The force value sensor 15 can monitor in real time the force value of the peeling of the specimen 14 from the test plate 6, so as to obtain the peeling force of the specimen.

[0032] The above description only presents the basic principles and preferred embodiments of the present invention. The improvements and replacements made by those skilled in the art based on the present invention fall within the protection scope of the present invention.

Claims

1. A high-temperature peeling test device, characterized in that: It includes a heating block, an upper fixture, a lower fixture, a test plate, a sliding table, a base and a force value sensor. The sliding table is slidably arranged relative to the base. The lower fixture is fixed on the sliding table. One end of the test plate is connected to the lower fixture, and the other end of the test plate extends into the heating space of the heating block. One end of the specimen is adhered to the test plate, and the other end of the specimen is adhered to the upper fixture. The force value sensor is connected to the upper fixture.

2. The high-temperature peeling test device according to claim 1, wherein: The heating block includes a movable heating block and a fixed heating block which are arranged to open and close. Heating grooves are provided on the opposite surfaces of the movable heating block and the fixed heating block. During the test, the test plate contacts the groove wall of the fixed heating block to make the temperature of the test plate reach the test temperature. When the movable heating block closes relative to the fixed heating block, the two heating grooves form a heating space.

3. The high-temperature peeling test device according to claim 2, wherein: The movable heating block and the fixed heating block are connected by a damping hinge.

4. The high-temperature peeling test device according to claim 1, characterized in that: Heating components and a temperature sensor are provided in the heating block.

5. The high-temperature peeling test device according to claim 1, wherein: A slide rail is provided on the base, and a slide groove is provided on the sliding table and is slidably matched with the slide rail.

6. The high-temperature peeling test device according to claim 1, wherein: A strip-shaped groove is formed on the sliding table in the same direction as the sliding direction of the sliding table. A locking handle passes through the strip-shaped groove and is threadedly connected to the base. The part of the locking handle above the strip-shaped groove is a pressing part with a diameter larger than the inner diameter of the strip-shaped groove.

7. The high-temperature peeling test device according to claim 1, characterized in that: It further includes a frame. The base and the heating block are both fixed on the frame. A moving cross beam is provided on the frame and is connected to the force value sensor.

8. The high-temperature peeling test device according to claim 1, wherein: A space is reserved between the inner wall of the heating groove and the specimen.

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