Salt mist box sample holder

Abstract

The utility model discloses a salt spray box sample holder, which belongs to the technical field of testing, aims to improve the accuracy of salt spray test results, and adopts the technical scheme that the sample holder comprises a first inclined plate and a second inclined plate, the first inclined plate and the second inclined plate are rectangular plates, the long edges of the bottom parts of the first inclined plate and the second inclined plate are connected to form a V-shaped plate, and the V-shaped plate is provided with a V-shaped groove. A plurality of water seepage ports which are uniformly distributed along the length directions of the first inclined plate and the second inclined plate are formed in the bottom of the V-shaped plate; test samples are placed on the upper parts of the first inclined plate and the second inclined plate. According to the utility model, the V-shaped plate is used for bearing a test sample, and salt spray corrosive liquid gathered at the bottom of the V-shaped plate is discharged to the bottom of the salt spray box through the water seepage port, so that accumulated liquid at the bottom of the sample rack can be reduced, and adverse effects of the accumulated liquid on test results are avoided. The salt spray box sample holder is simple in structure, convenient to use and capable of improving the accuracy of salt spray test results.

Description

Technical Field

[0001] The utility model relates to a sample rack for a salt spray box, which can reduce the liquid accumulation of the sample rack and prevent large samples from falling, belonging to the field of testing technology. Background Art

[0002] With the rapid development of industrialization in China, the demand for corrosion-resistant metal materials is increasing. Studying the corrosion behavior of metal materials helps enterprises better control product quality. Chloride ion corrosion is one of the most common types of corrosion and has obvious destructiveness to metal materials. When metal materials are in service in coastal areas, their chloride ion corrosion resistance needs to be focused on because there are more chlorides in the air near the sea. These chlorides are mainly sodium chloride, and the chloride ions in the chlorides have strong penetrability, which can penetrate the oxide film and protective layer on the metal surface and react electrochemically with metal elements, causing corrosion of the metal materials. At the same time, as a corrosive ion, chloride ions have strong adsorption and activity. They can adsorb on the surface of metal materials, displace the oxygen element in the oxide layer, make it a soluble substance, and then destroy the passivation state of the metal surface, causing serious corrosion damage to the surface and sharply deteriorating the surface quality of the metal.

[0003] The salt spray test is a means to accelerate the detection of the corrosion resistance of metal materials indoors. To simulate the destructiveness of the salt spray atmosphere to the tested materials, people invented the salt spray box. The salt spray box can provide a sealed space to conduct salt spray tests on metal products under set corrosion environmental conditions. Currently, there is a liquid accumulation phenomenon in the sample rack in the salt spray box during the salt spray experiment. Severe liquid accumulation will immerse the lower part of the specimen in the solution, affecting the accuracy of the salt spray test results. In addition, when placing large-sized specimens, the existing sample racks also have instability problems. When carrying specimens with larger sizes, the center of gravity of the sample rack will shift, and the sample rack is prone to tipping over, resulting in the falling of large samples and affecting the normal progress of the test. Therefore, it is necessary to improve the existing sample rack for the salt spray box. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sample rack for a salt spray box to reduce the liquid accumulation of the sample rack and improve the accuracy of the salt spray test results in view of the drawbacks of the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sample rack for a salt spray box includes a first inclined plate and a second inclined plate. Both the first inclined plate and the second inclined plate are rectangular plates, and the long sides of their bottoms are connected to form a V-shaped plate. A plurality of water seepage openings evenly distributed along the length directions of the first inclined plate and the second inclined plate are opened at the bottom of the V-shaped plate, and test samples are placed on the upper parts of the first inclined plate and the second inclined plate.

[0007] For the above salt spray chamber sample rack, the angles between the first inclined plate and the second inclined plate and the horizontal plane are equal, and the heights of the first inclined plate and the second inclined plate are different.

[0008] For the above salt spray chamber sample rack, at both ends of one side of the first inclined plate facing away from the second inclined plate, first support frames are fixed, and at both ends of one side of the second inclined plate facing away from the first inclined plate, second support frames are fixed.

[0009] For the above salt spray chamber sample rack, the water seepage port is a rectangular port with a width of 1 - 3 mm and a length of 5 - 15 mm.

[0010] For the above salt spray chamber sample rack, the materials of the first inclined plate, the second inclined plate, the first support frames and the second support frames are all corrosion - resistant PVC.

[0011] The utility model uses a V - shaped plate to carry test samples, and uses the water seepage port to discharge the salt spray corrosion liquid accumulated at the bottom of the V - shaped plate to the bottom of the salt spray chamber, which can reduce the liquid accumulation at the bottom of the sample rack and avoid the adverse effects of the liquid accumulation on the test results. The salt spray chamber sample rack has a simple structure and is easy to use, and can improve the accuracy of the salt spray test results. Description of the Drawings

[0012] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0013] Figure 1 is the front view of the present utility model;

[0014] Figure 2 is the top view of the present utility model.

[0015] The labels in the figure are as follows: 1, the first inclined plate; 2, the second inclined plate; 3, the first support frame; 4, the second support frame; 5, the water seepage port. Detailed Embodiments

[0016] Aiming at the problems of liquid accumulation in the sample rack and easy tipping of large - size specimens during the salt spray test, the present utility model provides a salt spray chamber sample rack with a simple structure, easy to use, not easy to accumulate liquid and not easy to tip over.

[0017] As Figure 1 and 2As shown in the figure, the utility model includes a V-shaped plate (abnormal-shaped frame) formed by connecting a first inclined plate 1 and a second inclined plate 2. The angles between the first inclined plate 1 and the second inclined plate 2 and the horizontal plane are equal, and the heights of the first inclined plate 1 and the second inclined plate 2 are different. The asymmetrical design of the V-shaped plate is beneficial to carrying samples of different sizes. The first inclined plate 1 is higher than the second inclined plate 2. The higher first inclined plate 1 can place large-sized samples, while the lower second inclined plate 2 can place small-sized samples. At both ends of the side of the first inclined plate 1 facing away from the second inclined plate 2, a first support frame 3 is fixed. At both ends of the side of the second inclined plate 2 facing away from the first inclined plate 1, a second support frame 4 is fixed. The first support frame 3 and the second support frame 4 are used to fix the V-shaped plate to make the V-shaped plate stable.

[0018] A water seepage structure is provided at the bottom of the V-shaped plate. The water seepage structure is composed of a plurality of water seepage openings 5 opened at the bottom of the V-shaped plate. The plurality of water seepage openings 5 are evenly distributed along the length directions of the first inclined plate 1 and the second inclined plate 2. The water seepage opening 5 is a rectangular opening with a width of 1-3 mm and a length of 5-15 mm. A part of each water seepage opening 5 is opened on the first inclined plate 1, and the other part is opened on the second inclined plate 2. During the salt spray test, the salt spray ejected by the spray device acts on the sample test surface, and then a corrosion reaction occurs. As the salt spray continuously acts on the sample test surface, the salt spray corrosion liquid flows along the sample test surface to the bottom of the V-shaped plate and is discharged to the bottom of the salt spray chamber through the water seepage openings 5. In this way, the liquid accumulation at the bottom of the V-shaped plate can be reduced, and the adverse impact of the liquid accumulation on the test results can be avoided. The first support frame 3 and the second support frame 4 can make the V-shaped plate have better stability. When the sample is placed on one side of the V-shaped plate, causing a weight imbalance problem, the first support frame 3 and the second support frame 4 can effectively prevent the V-shaped plate from tilting or overturning.

[0019] The first inclined plate 1, the second inclined plate 2, the first support frame 3 and the second support frame 4 are all made of corrosion-resistant PVC material, and can serve in a salt spray atmosphere for a long time without reacting with the test samples.

[0020] The utility model is placed in a salt spray test chamber, and samples are fixed on the first inclined plate 1 and the second inclined plate 2, which can ensure that the sample test surface is fully in contact with the salt spray environment and ensure the test effect.

Claims

1. A salt spray chamber sample rack, characterized in that: The invention comprises a first inclined plate (1) and a second inclined plate (2), wherein the first inclined plate (1) and the second inclined plate (2) are both rectangular plates, the long sides of the bottoms of the two plates are connected to form a V-shaped plate, the bottom of the V-shaped plate is provided with a plurality of water seepage holes (5) evenly distributed along the length direction of the first inclined plate (1) and the second inclined plate (2), and the test samples are placed on the upper parts of the first inclined plate (1) and the second inclined plate (2).

2. A salt spray chamber sample holder according to claim 1, characterized in that: The first inclined plate (1) and the second inclined plate (2) have equal included angles with the horizontal plane, and the first inclined plate (1) and the second inclined plate (2) have different heights.

3. A salt spray chamber sample holder according to claim 1 or 2, characterized in that: First support frames (3) are fixed at both ends of the first inclined plate (1) on a side facing away from the second inclined plate (2), and second support frames (4) are fixed at both ends of the second inclined plate (2) on a side facing away from the first inclined plate (1).

4. A salt spray chamber sample holder according to claim 3, characterized in that: The water seepage opening (5) is a rectangular opening with a width of 1-3 mm and a length of 5-15 mm.

5. A salt spray chamber sample holder according to claim 4, characterized in that: The first inclined plate (1), the second inclined plate (2), the first support frame (3) and the second support frame (4) are all made of corrosion-resistant PVC.

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