Storage rack suitable for intergranular corrosion test of aluminum alloy nut

Abstract

The utility model discloses a commodity shelf suitable for an aluminum alloy nut intergranular corrosion test, which comprises a base (1), a step (2), a chute (3), a hook (4) and a hanging hole (5). An integrated step (2) is arranged in the middle of the base (1), a sliding groove (3) and a hanging hole (5) are respectively arranged on the step (2), and a hook (4) is hung in the sliding groove (3). The multifunctional hanger is multifunctional in hanging, capable of being quickly disassembled and assembled, adjustable in position and durable and reliable in whole.

Description

Technical Field

[0001] The utility model belongs to the technical field of corrosion testing, in particular to a storage rack suitable for intergranular corrosion testing of aluminum alloy nuts. Background Art

[0002] Intergranular corrosion is a localized corrosion that primarily destroys the bond between grains, significantly reducing the mechanical strength of the metal. After corrosion, the metal and alloy surfaces still retain a certain metallic luster, and signs of damage cannot be detected in time, making it a very dangerous corrosion behavior. Therefore, intergranular corrosion is crucial in the inspection of aluminum alloy fasteners. The current standard GB7998 "Determination of Intergranular Corrosion of Aluminum Alloys" specifies its specific methods and requirements in detail, requiring a constant temperature of 35°C ± 2°C, the specimen to be suspended with a plastic wire, and fully immersed in the test solution, and the ratio between the specimen surface area and the test solution volume to be less than 20mm 2 / ml, different alloy samples cannot be placed in the same container, and the samples cannot contact each other, and the containers and samples cannot contact each other. According to the relevant product standards, when each batch is less than 10,000 pieces, the intergranular corrosion test is 5 pieces, and when each batch is greater than 10,000 pieces, the intergranular corrosion test is 10 pieces. In the current test, it was found that when using plastic wire, the nut can only be tied and then hung in the beaker with a glass rod. When hanging, the test fasteners are easy to contact with the inner wall of the beaker and the fasteners in the beaker, affecting the accuracy of the test. Secondly, in order to meet the ratio of the sample surface area to the test solution volume is less than 20mm 2 / ml, when testing large-size fasteners, due to the influence of the length of the plastic wire and the size of the nut, a taller beaker is needed to meet the test requirements. When the beaker is too high and the volume of the constant temperature water bath remains unchanged, the constant temperature water bath cannot be covered, resulting in failure to meet the standard requirement of a constant temperature of 35℃±2℃. Summary of the Invention

[0003] The purpose of the utility model is to overcome the above shortcomings and provide a multifunctional suspension that can be quickly disassembled and assembled, has adjustable position, and is durable and reliable as a whole and is suitable for intergranular corrosion testing of aluminum alloy nuts.

[0004] The purpose of this utility model and the solution of its main technical problems are achieved by adopting the following technical solutions:

[0005] The utility model is a storage rack suitable for intergranular corrosion testing of aluminum alloy nuts, comprising a base, a step, a slide groove, a hook and a hanging hole, and is characterized in that an integrated step is provided in the middle of the base, a slide groove and a hanging hole are respectively provided on the step, and a hook is hung in the slide groove.

[0006] The hook can slide in the slide groove.

[0007] The base is made of glass.

[0008] The hook is made of plastic.

[0009] Compared with the prior art, the present invention offers significant advantages. As can be seen from the above technical solution, an integrated step is provided in the center of the base, with a chute and a hanging hole provided on the step, and a hook suspended in the chute. The hook can slide within the chute. The base and step are made of glass and are used to accommodate the hook and hang plastic string. The chute is provided on the step, and the hook can slide freely within the chute. The hook can be used to hang washers, nuts, and other fasteners. The hanging hole is provided on the step, and can be used to hang a plastic rope or plastic clip, which can be used to hang fasteners such as bolts and screws. The hook is made of plastic and can be integrally molded or otherwise formed. It can be clipped into the chute and slide freely within the chute. A plastic rope can be used to connect the hole and groove, forming a plastic mesh on the glass step. The connection method of the plastic mesh can be adjusted according to the size of the fastener. During intergranular corrosion testing, nuts, bolts, screws, and other fasteners can be placed on the plastic mesh without contact between specimens. This provides a multifunctional hanging system that can be quickly assembled and disassembled, with adjustable position, and is durable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the utility model;

[0011] Figure 2 It is a structural diagram of the bushing of the utility model;

[0012] Figure 3 It is a structural diagram of the core sleeve of the utility model;

[0013] Figure 4 It is a diagram of the use state of the utility model;

[0014] Figure 5 This is the usage state of the utility model Figure 1 .

[0015] Marking in the figure

[0016] 1. Base, 2. Step, 3. Slide, 4. Hook, 5. Hanging hole, 6. Fastener, 7. Plastic rope. DETAILED DESCRIPTION

[0017] The following is a detailed description of the specific implementation, structure, features and effects of the present invention in conjunction with the accompanying drawings and preferred embodiments.

[0018] The utility model is a storage rack suitable for intergranular corrosion testing of aluminum alloy nuts, comprising a base 1, a step 2, a slide 3, a hook 4, and a hanging hole 5, and is characterized in that an integrated step 2 is provided in the middle of the base 1, the slide 3 and the hanging hole 5 are respectively provided on the step 2, the hook 4 is hung in the slide 3, and the hook 4 can slide in the slide 3, the base 1 is made of glass, and the hook 4 is made of plastic.

[0019] When using, see Figure 4 First, hang the fastener 6, such as a nut or washer, on the hook 4. After the hook 4 is hung in the chute 3 and can slide freely, and the distance between the hooks 4 is adjusted, the intergranular corrosion test can be carried out. If it is a fastener without a cavity structure, use a plastic rope to assist in passing through several hanging holes 5 and wrap around the step 2. Then, place the fastener without a cavity structure on the net made of plastic rope. Figure 5 , the intergranular corrosion test can be carried out.

[0020] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A storage rack suitable for an intergranular corrosion test of aluminum alloy nuts, comprising a base (1), a step (2), a slide (3), a hook (4), and a hanging hole (5), characterized in that; An integrated step (2) is provided in the middle of the base (1), a slide groove (3) and a hanging hole (5) are respectively provided on the step (2), and a hook (4) is hung in the slide groove (3).

2. The storage rack for intergranular corrosion testing of aluminum alloy nuts according to claim 1, characterized in that: The hook (4) can slide in the slide groove (3).

3. The storage rack for intergranular corrosion testing of aluminum alloy nuts according to claim 1, characterized in that: The base (1) is made of glass.

4. The storage rack for intergranular corrosion testing of aluminum alloy nuts according to claim 1, characterized in that: The hook (4) is made of plastic.

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