Device for testing flowing property of sealant

Abstract

The utility model discloses a device for testing the flowing property of a sealant, which comprises a mold, and at least one placing groove for placing a test plate is arranged in the middle of the mold; fixing supports are arranged on the two sides of the mold at intervals, switching rods are fixedly connected to the two sides of the mold, the other ends of the switching rods penetrate through the fixing supports to be connected with rotary knobs, the switching rods are rotationally connected with the fixing supports, the rotary knobs are screwed to drive the mold to rotate through the switching rods, and switching of the mold from a horizontal placement position to a vertical placement position is achieved. According to the device for testing the flowing property of the sealant, the placing groove for placing the test plate is formed in the mold, so that the test plate is convenient to place and the sealant is convenient to prepare; glue making is convenient when the mold is located at the horizontal placing position, switching between the horizontal placing position and the vertical placing position of the mold is achieved through the switching rod and the rotary knob, operation is convenient and fast, errors caused by manual operation are reduced, and accurate data can be provided for tests.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a device for testing the flowability of sealant. Background Technology

[0002] Two-component aerospace sealants have a wide range of applications in the aerospace field, such as sealing and waterproofing aircraft, helicopters, rockets, electrical terminals in aircraft electrical systems, and fuel tanks. The widespread use of aerospace two-component sealants is mainly due to their excellent high-temperature resistance, low-temperature resistance, corrosion resistance, and vibration resistance.

[0003] The flowability test for aerospace two-component sealants is an important test to evaluate the flow characteristics of sealants under gravity or external forces during application and curing. By conducting the flowability test, the flow properties of aerospace two-component sealants during application can be understood, thereby guiding application operations, ensuring that the sealant can fully fill gaps, and improving the sealing effect. At the same time, this test also serves as an important technical basis for material delivery and acceptance.

[0004] For Class C sealants, the test method is as follows: Apply a 0.38mm to 0.51mm layer of the new mixed sealant compound onto a 1.02mm × 69.9mm × 152mm AMS4049 aluminum alloy test plate. Immediately afterward, place the test plate vertically until the non-stick period (usually 5 to 10 minutes). Measure the thickness of the remaining sealant at the top third of the test plate to verify whether the measured thickness meets the minimum thickness requirement of the applicable material specification.

[0005] In actual experiments, it is necessary to ensure the thickness and uniformity of the glue during preparation. After the glue is prepared, the test plate must be kept in a vertical position. It is difficult to accurately control the glue thickness and keep the test plate vertical by manual operation. Therefore, it is necessary to design a device to assist in completing this experiment. Utility Model Content

[0006] To address the shortcomings of the existing technology, this utility model provides a device for testing the flowability of sealant, which combines sealant preparation and testing. It has a simple structure, is easy to operate, reduces human error, and can improve the detection efficiency and accuracy of the test.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0008] An apparatus for testing the flowability of a sealant includes a mold with at least one placement groove for placing a test plate in the middle of the mold; fixed supports are spaced apart on both sides of the mold; adapter rods are fixedly connected to both sides of the mold; the other end of the adapter rod passes through the fixed support and is connected to a knob; the adapter rod is rotatably connected to the fixed support; turning the knob drives the mold to rotate through the adapter rod, thereby switching the mold from a horizontal placement position to a vertical placement position.

[0009] Furthermore, the depth of the placement groove is greater than the thickness of the test plate.

[0010] Furthermore, the depth of the placement groove is equal to the sum of the thickness of the test plate and the thickness of the prepared adhesive.

[0011] As a preferred technical solution, the mold includes a base plate, a panel, and gaskets. Two gaskets are fixed to the front of the base plate at intervals, and two panels are spaced apart and fixed to the two gaskets respectively. A T-shaped placement groove is formed between the panels, gaskets, and the base plate.

[0012] As a preferred technical solution, the thickness of the gasket is comparable to the thickness of the test plate, and the thickness of the panel is comparable to the thickness of the adhesive to be prepared.

[0013] As a preferred technical solution, the mold surface is provided with scale lines on both sides of the placement groove, and the scale lines are located at one-third of the distance from top to bottom when the mold is placed vertically.

[0014] As a preferred technical solution, the mold is made of polytetrafluoroethylene.

[0015] As a preferred technical solution, a limit stop is fixedly provided on the adapter rod, and a fan-shaped angle limiting groove is provided on the outer wall of the fixed bracket. The limit stop is located in the angle limiting groove and rotates with the adapter rod in the angle limiting groove. The two side walls of the angle limiting groove respectively limit the mold to a horizontal position and a vertical position.

[0016] As a preferred technical solution, the adapter rod is provided with external threads, and a locking nut is threadedly connected to the adapter rod.

[0017] As a preferred technical solution, the system also includes a tray, in which the fixing bracket and the mold are placed.

[0018] The beneficial effects of this utility model are:

[0019] The device for testing the flowability of sealant of this invention has a placement groove on the mold for placing test plates, which facilitates the placement of test plates and the preparation of sealant. When the mold is in the horizontal position, it is convenient for sealant preparation. The horizontal and vertical positions of the mold can be switched by the adapter rod and the knob, which is convenient to operate, reduces the error caused by human operation, and can provide accurate data for the test.

[0020] This invention relates to an apparatus for testing the flowability of sealant. The thickness of the sealant is controlled by the thickness of the placement groove or the panel, making it easy to operate and more accurate. The mold consists of a base plate, a gasket, and a panel, forming a T-shaped placement groove that facilitates the placement of the specimen and the preparation of the sealant.

[0021] This invention relates to a device for testing the flowability of sealants. The mold features graduated lines, making the measurement position readily apparent and enhancing the convenience and accuracy of the measurement. The mold is made of polytetrafluoroethylene (PTFE), which is low-cost, easy to demold, and easy to clean, thereby improving testing efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of an embodiment of the present invention in a vertically placed position;

[0024] Figure 2 This is a schematic diagram of an embodiment of the present invention in a horizontal position;

[0025] Figure 3 yes Figure 1 Enlarged view of the area within the dashed box;

[0026] Figure 4 This is a schematic diagram of another embodiment of the present invention.

[0027] Reference numerals: 1-Mold, 2-Placement slot, 3-Fixed bracket, 4-Adapter rod, 5-Knob, 6-Test plate, 7-Scale line, 8-Limit stop, 9-Angle limiting groove, 10-Locking nut, 11-Base plate, 12-Panel, 13-Shim, 14-Pattern. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] An apparatus for testing the flowability of a sealant, such as Figures 1-4As shown, the mold includes a mold 1, with at least one placement slot 2 for placing a test plate 6 in the middle of the mold 1; fixed brackets 3 are spaced apart on both sides of the mold 1, and adapter rods 4 are fixedly connected to both sides of the mold 1. The other end of the adapter rod 4 passes through the fixed bracket 3 and is connected to a knob 5. The adapter rod 4 is rotatably connected to the fixed bracket 3. Turning the knob 5 drives the mold 1 to rotate through the adapter rod 4, thereby switching the mold 1 from a horizontal placement position to a vertical placement position.

[0030] Furthermore, the depth of the placement groove 2 is greater than the thickness of the test plate 6. Preferably, the depth of the placement groove 2 is equal to the sum of the thickness of the test plate 6 and the thickness of the prepared adhesive; the thickness of the prepared adhesive is 0.38mm to 0.51mm. After placing the test plate 6, adhesive is applied to the test plate 6. The applied adhesive is flush with the surface of the mold 1, and the adhesive thickness is approximately 0.38mm to 0.51mm. The thickness of the adhesive application is controllable and meets the test requirements.

[0031] In one specific embodiment, the mold 1 includes a base plate 11, a panel 12, and gaskets 13. Two gaskets 13 are fixedly spaced on the front of the base plate 11, and two panels 12 are spaced apart and respectively fixed on the two gaskets 13. A T-shaped placement groove 2 is formed between the panels 12, gaskets 13, and the base plate 11. A test plate 6 can be inserted from the end of the placement groove 2. The two sides of the test plate 6 are held between the panels 12 and the base plate 11. The area in the middle of the test plate 6 corresponding to the area between the two panels 12 is used for applying sealant. Preferably, the thickness of the gasket 13 is equivalent to the thickness of the test plate 6, and the thickness of the panel 12 is equivalent to the thickness of the prepared sealant. The thickness of the prepared sealant is 0.38mm to 0.51mm, and the thickness of the panel is set to 0.45±0.05mm. After the sealant is prepared, the sealant surface is flush with the surface of the panel 12. The thickness of the sealant is controlled by the thickness of the panel 12, which is highly accurate and easy to operate.

[0032] Furthermore, scale lines 7 are provided on both sides of the placement groove 2 on the surface of the mold 1. The scale lines 7 are located at one-third of the distance from top to bottom when the mold 1 is placed vertically, so as to facilitate the measurement of the sealant thickness at the scale lines after the sealant has been applied and left to stand.

[0033] Preferably, the mold 1 is made of polytetrafluoroethylene (PTFE). The non-stick properties of PTFE make it easy to remove the sealant from the mold and facilitate cleaning.

[0034] Furthermore, such as Figure 3As shown, a limiting block 8 is fixedly installed on the adapter rod 4, and a fan-shaped angle limiting groove 9 is opened on the outer wall of the fixed bracket 3. The limiting block 8 is located in the angle limiting groove 9 and rotates with the adapter rod 4 within the angle limiting groove 9. The two side walls of the angle limiting groove 9 respectively limit the mold to a horizontal or vertical position. Turning the knob causes the adapter rod 4 to rotate, and the limiting block 8 rotates within the angle limiting groove 9. When the limiting block 8 abuts against the side wall of the angle limiting groove 9, the mold is exactly in the horizontal or vertical position, ensuring accurate angle control. Especially in the vertical position, this avoids the angle deviation from affecting the flowability of the sealant.

[0035] Furthermore, a locking structure is provided between the adapter rod 4 and the fixed bracket 3. When the mold 1 rotates to the correct position, the adapter rod and the fixed bracket are fixed by the locking structure to prevent the mold from rotating. Preferably, the adapter rod 4 is provided with an external thread, and a locking nut 10 is threadedly connected to the adapter rod 4. By tightening the locking nut 10, the rotation of the adapter rod 4 can be prevented, thereby preventing the rotation of the mold 1.

[0036] Furthermore, it also includes a tray 14, in which the fixing bracket 3 and the mold 1 are placed. During the experiment, the vertically placed sealant flows into the tray 14, facilitating cleaning. Preferably, the tray 14 is made of polytetrafluoroethylene (PTFE).

[0037] The method of using the device of this utility model is as follows:

[0038] S1. Place the cleaned AMS4049 aluminum alloy test plate into the placement slot of the mold;

[0039] S2. Turn the knob to rotate the mold to a horizontal position and fix it;

[0040] S3. Apply adhesive to the test plate, and make sure the applied sealant is flush with the mold surface;

[0041] S4. Immediately turn the knob to rotate the mold to the vertical position and fix it in place;

[0042] S5. Place vertically until the non-stick period ends;

[0043] S6. Measure the thickness of the sealant at the scale line on the mold.

[0044] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A device for testing the flowability of sealant, characterized by: The utility model provides a test board placing device, including mould (1), the middle part of mould (1) is equipped with at least one test board (6) of placing groove (2) of placing, the both sides of mould (1) are apart from each other and are equipped with fixed support (3), and the both sides of mould (1) are fixedly connected adapter bar (4), and the other end of adapter bar (4) penetrates fixed support (3) and is connected with knob (5), and adapter bar (4) is rotatably connected with fixed support (3), and knob (5) is twisted and drives mould (1) to rotate through adapter bar (4), and the switching of mould (1) is realized by horizontal placement position and vertical placement position.

2. The apparatus for sealant flow test according to claim 1, wherein: The depth of the placing groove (2) is greater than the thickness of the test board (6).

3. The apparatus for testing the flowability of sealant according to claim 2, wherein: The depth of the placing groove (2) is equal to the sum of the thickness of the test board (6) and the thickness of the rubber.

4. The apparatus for sealant run test according to claim 1 or 2, wherein: The mould (1) comprises a bottom plate (11), a face plate (12) and a gasket (13), the two gaskets (13) are fixed on the front surface of the bottom plate (11) at intervals, the two face plates (12) are arranged at intervals and are fixed on the two gaskets (13) respectively, and the placing groove (2) in T shape is formed between the face plate (12), the gasket (13) and the bottom plate (11).

5. The apparatus for testing the flowability of sealant according to claim 4, wherein: The thickness of the gasket (13) is equivalent to the thickness of the test board (6), and the thickness of the face plate (12) is equivalent to the thickness of the rubber.

6. The apparatus for sealant run test according to claim 1, wherein: The surface of the mould (1) is provided with a scale line (7) on both sides of the placing groove (2), and the scale line (7) is located at one third from top to bottom when the mould (1) is placed vertically.

7. The apparatus for testing the flowability of sealant according to claim 4, wherein: The mould (1) is made of polytetrafluoroethylene material.

8. The apparatus for testing the flowability of sealant according to claim 1, wherein: A limiting block (8) is fixedly arranged on the adapter bar (4), a fan-shaped angle limiting groove (9) is formed in the outer side wall of the fixed support (3), the limiting block (8) is arranged in the angle limiting groove (9), the limiting block (8) rotates with the adapter bar (4) in the angle limiting groove (9), and the two side walls of the angle limiting groove (9) limit the mould to be in the horizontal placement position and the vertical placement position respectively.

9. The apparatus for testing the flowability of sealant according to claim 8, wherein: The adapter bar (4) is provided with an external thread, and a locking nut (10) is threadedly connected to the adapter bar (4).

10. The apparatus for sealant run test according to claim 1, wherein: The utility model also comprises a tray (14), and the fixed support (3) and the mould (1) are arranged in the tray (14).

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