Sample preparation tool for testing compression strength of glue for LNG (Liquefied Natural Gas) ship

Abstract

The utility model discloses a sample preparation tool for testing the compression strength of glue for LNG (liquefied natural gas) ships, which comprises a preparation table and at least one mold block arranged on the preparation table, a plurality of open slots are arranged on the mold block, the top and two sides of each open slot are all of an open structure, and the top of each open slot is provided with an opening. Air cylinders are arranged at the positions, located on the two sides of each open groove, of the preparation table, check blocks are arranged at the heads of the air cylinders and used for sealing side openings of the open grooves, the open grooves and the two check blocks form a forming groove, and the forming groove is used for curing liquid glue into a test sample. According to the utility model, the quick demoulding of the sample can be realized, a clamp is not needed, the demoulding time is saved, the sample preparation efficiency is improved, the sample can be prevented from being damaged, and the effect of testing the compression strength of the glue is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of liquefied natural gas and relates to the compressive strength testing of LNG marine adhesives, specifically to a sample preparation tool for testing the compressive strength of LNG marine adhesives. Background Technology

[0002] The storage tank on an LNG (liquefied natural gas) ship is a device used to store liquefied natural gas. It is made up of multiple insulating plates, sealing plates, etc., which are glued together using LNG marine adhesive. Due to the special properties of liquefied natural gas, the storage tank must have extremely high insulation, sealing, and low temperature resistance. Therefore, it is necessary to test the compressive strength of the LNG marine adhesive to ensure that the compressive strength meets the usage requirements.

[0003] Because liquid adhesives are fluid, they need to be cured to form samples for compressive strength testing. However, once the samples are formed using existing curing molds, they are not easy to demold and often require the use of special fixtures for demolding. This is not only time-consuming and labor-intensive, but also easily damages the samples, thus affecting the compressive strength test. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, a sample preparation fixture for testing the compressive strength of LNG marine adhesives is provided. It can realize the rapid demolding of the sample without the need for clamps, saving demolding time, improving sample preparation efficiency, and ensuring that the sample is not damaged, thus guaranteeing the effectiveness of the adhesive compressive strength test.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a sample preparation fixture for testing the compressive strength of LNG marine adhesive, including a preparation platform and at least one mold block disposed on the preparation platform. The mold block is provided with a plurality of opening slots, the top and sides of which are open structures. A cylinder is disposed on both sides of each opening slot on the preparation platform, and a stop block is disposed at the head of the cylinder. The stop block is used to seal the side opening of the opening slot. The opening slot and the two stop blocks form a molding groove, which is used to cure the liquid adhesive into a test sample.

[0006] Furthermore, the blocks on both sides of the opening groove are symmetrically arranged.

[0007] Furthermore, mounting plates are provided on both sides of the mold block on the preparation platform, and cylinders located on the same side of the mold block are mounted on the mounting plates.

[0008] Furthermore, the mounting plate is provided with an opening for the head of the air supply cylinder to extend out.

[0009] Furthermore, a pneumatic switch is provided on the preparation table at the mold block, and the pneumatic switch is connected to all the cylinders on both sides of the mold block.

[0010] Beneficial effects: Compared with the prior art, this utility model uses an open groove combined with two cylinders to form a molding groove. The sample formed after curing can be demolded by opening the two cylinders. The sample can be directly taken out of the open groove without the need for special clamps, which can achieve rapid demolding of the sample, save demolding time, improve sample preparation efficiency, and ensure that the sample is not damaged. The effect of glue compression strength test is guaranteed. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention when it is in a non-working state;

[0012] Figure 2 This is a schematic diagram of the structure of the present invention when it is in working condition. Detailed Implementation

[0013] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0014] like Figure 1 and Figure 2 As shown, this utility model provides a sample preparation fixture for testing the compressive strength of LNG marine adhesive, including a preparation platform 1 and two mold blocks 5 set on the preparation platform 1. The mold blocks 5 are provided with three opening slots 6, and the top and sides of the opening slots 6 are open structures. Mounting plates 3 are provided on both sides of the mold blocks 5 on the preparation platform 1. Cylinders 2 are provided on both sides of each opening slot 6 on the preparation platform 1. The three cylinders 2 on the same side are all mounted on the mounting plates 3. The head 8 of the cylinder 2 is provided with a stop block 4. The mounting plate 3 is provided with an opening 31 for the head 8 of the cylinder 2 to extend out. The stop blocks 4 on both sides of the opening slot 6 are symmetrically arranged. The stop blocks 4 are used to seal the side openings of the opening slot 6. The opening slot 6 and the two stop blocks 4 form a molding groove 9. The molding groove 9 is used to solidify the liquid adhesive into a test sample. A pneumatic switch 7 is provided on the preparation platform 1 at the mold block 5. The pneumatic switch 7 is connected to all the cylinders 2 on both sides of the mold block 5 through an air pipe.

[0015] Reference Figure 1 and Figure 2 In this embodiment, the above-mentioned tooling is used for sample preparation for LNG marine adhesive compression strength testing. The specific preparation process is as follows:

[0016] First, apply a layer of wax evenly to the surface of the opening groove 6 of the mold block 5 to prevent the glue from sticking to the opening groove 6. Then, turn on the pneumatic switch 7, and the cylinders 2 on both sides push out the head 8, so that the side blocks 4 are pressed against the opening groove 6 to form a molding groove 9. Pour the mixed epoxy putty into the molding groove 9, then cover the top surface of the molding groove 9 with a film, and then press down on the mold block 5 with a pressure plate to compact the glue in the molding groove 9. The glue is pressed and cured in the molding groove 9 to form a cubic block with a size of 30mm×30mm×30mm. After curing, turn off the pneumatic switch 7, and the side blocks 4 are removed from the opening groove 6. The operator can directly take out the cubic block from the opening groove 6 and use these cubic blocks as samples for glue compression strength testing.

[0017] As can be seen from the above process, the sample can be directly removed from the opening slot 6 without the need for a special fixture, which can achieve rapid demolding of the sample, save demolding time, improve sample preparation efficiency, and ensure that the sample is not damaged, thus guaranteeing the effectiveness of the glue compression strength test.

Claims

1. A sample preparation tool for testing the compressive strength of adhesives used in LNG ships, characterized in that, The device includes a preparation platform and at least one mold block disposed on the preparation platform. The mold block is provided with a plurality of opening slots, the top and sides of which are open structures. On the preparation platform, a cylinder is disposed on both sides of each opening slot. The head of each cylinder is provided with a stop block, which is used to seal the side opening of the opening slot. The opening slot and the two stop blocks form a molding groove, which is used to cure liquid adhesive into a test sample.

2. The sample preparation fixture for testing the compressive strength of LNG marine adhesives according to claim 1, characterized in that, The blocks on both sides of the opening groove are symmetrically arranged.

3. The sample preparation fixture for testing the compressive strength of LNG marine adhesives according to claim 1, characterized in that, Mounting plates are provided on both sides of the mold block on the preparation platform, and cylinders located on the same side of the mold block are mounted on the mounting plates.

4. The sample preparation fixture for testing the compressive strength of LNG marine adhesives according to claim 3, characterized in that, The mounting plate is provided with an opening for the head of the air supply cylinder to extend out.

5. The sample preparation fixture for testing the compressive strength of LNG marine adhesives according to claim 1, characterized in that, A pneumatic switch is installed on the preparation platform at the mold block, and the pneumatic switch is connected to all the cylinders on both sides of the mold block.

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