Salt spray corrosion environment simulation test system and test method

Abstract

The invention discloses a salt spray corrosion environment simulation test system and test method. The salt spray corrosion environment simulation test system comprises a base, and a salt spray generator and a test box are arranged on the base; the salt mist generator comprises a support arranged on the base, a generator barrel is arranged on the support, the stirring rod is located in the generator barrel, an impact ball is arranged on the inner wall of the generator barrel, a plurality of through holes are formed in the upper half section of the impact ball, a hollow annular box is formed in the outer wall of the generator barrel, and the hollow annular box communicates with the impact ball. A liquid storage barrel is arranged on the base, the annular box is communicated with a liquid discharge pipe, a first pump is arranged on the liquid storage barrel, and the first pump is communicated with the generator barrel body through a first pipe. The salt mist generator solves the problems that in a salt mist generator in the prior art, a salt solution in a container is consumed quickly, and when the salt solution is supplemented, the liquid level of the salt solution is difficult to maintain at a reef structure.

Description

Technical Field

[0001] The invention relates to salt spray test equipment, in particular to a salt spray corrosion environment simulation test system and a test method. Background Art

[0002] Salt spray test chamber is a kind of equipment used to simulate the salt spray corrosion conditions in the ocean or salty environment to evaluate the corrosion resistance of materials, coatings and products. It is widely used in many fields such as material science, automobile manufacturing, aerospace, electronic products and chemical products. A salt spray test chamber is often provided with a salt spray generator to form salt spray from a salt solution. For example, Chinese patent No. CN201911044164.3 provides a salt spray generator and a salt spray generating method, wherein the generator comprises a container with an air inlet and a fog outlet channel, a pulsator driven by a power system is provided in the inner cavity of the container, a reef structure is provided in the inner cavity of the container and located outside the pulsator, and the reef structure is partially or completely exposed to the surface of the salt solution; the steps of the salt spray generating method include: injecting the prepared salt solution into the inner cavity of the salt spray generator to ensure that the surface of the salt solution is not higher than the middle of the reef structure; turning on the power system to rotate the pulsator and the fan in the inner cavity of the salt spray generator at a speed of 800-1500r / min; placing a wire mesh filter with an aperture of no more than 2μm in the fog outlet channel of the salt spray generator, and introducing the salt spray filtered by the wire mesh filter into the test chamber for standby. For example, in the salt spray generator of the prior art, the salt solution in the container is consumed quickly, and it is difficult to keep the liquid level of the salt solution at the reef structure when replenishing the salt solution. Summary of the invention

[0003] The purpose of the present invention is to provide a salt spray corrosion environment simulation test system and test method, which solves the problem that the salt solution in the container of the salt spray generator in the prior art is consumed quickly and it is difficult to keep the liquid level of the salt solution at the reef structure when replenishing the salt solution.

[0004] In order to achieve the above-mentioned object, the present invention provides a salt spray corrosion environment simulation test system, the salt spray corrosion environment simulation test system comprises a base, on which a salt spray generator and a test box are respectively arranged; the salt spray generator comprises a bracket arranged on the base, on which a generator barrel is arranged, a first motor is arranged in the bracket, a stirring rod is connected to the output shaft of the first motor, the stirring rod is located in the generator barrel, a plurality of hollow impact balls are arranged around the inner wall of the generator barrel, a plurality of through holes are formed in the upper half of the impact balls, and the A hollow annular box is formed on the outer wall of the generator barrel, and the hollow annular box is connected to the impact ball. A liquid storage barrel is arranged on the base, and a liquid discharge pipe is connected to the annular box, and the liquid discharge pipe is at least partially located in the liquid storage barrel. A first pump is arranged on the liquid storage barrel, and the first pump is connected to the generator barrel through a first pipe. A second pipe is connected to the upper end of the generator barrel. A second pump connected to the second pipe is arranged on the outer wall of the test box, and a third pipe connected to the second pump is arranged in the test box, and a plurality of nozzles are arranged on the third pipe.

[0005] Preferably, the number of the impact balls is no less than 3 groups, and the multiple groups of impact balls are equidistantly arranged around.

[0006] Preferably, a flow controller is provided on the first tube.

[0007] Preferably, a slide plate is slidably provided in the test box, and a clamping assembly is provided on the slide plate.

[0008] Preferably, the clamping assembly includes a frame body arranged on the slide, a first shaft is slidably arranged at one end of the frame body, a first clamping block is rotatably arranged on the first shaft, a first spring is sleeved on the first shaft, and a second clamping block is arranged at the other end of the frame body.

[0009] Preferably, a second shaft is rotatably provided on the frame, one end of the second shaft is connected to the second clamping block, and the other end of the second shaft is provided with a rod body;

[0010] A second motor is disposed on the outer wall of the test box, and an output shaft of the second motor extends into the interior of the test box and is connected to a U-shaped frame, so that the U-shaped frame can drive the rod body to rotate.

[0011] Preferably, a bearing is provided on the frame, and the second shaft is rotatably disposed in the bearing.

[0012] Preferably, a mesh partition is provided in the middle of the test box, the slide plate is slidably provided on the mesh partition plate, and hollow holes are provided on the slide plate.

[0013] Preferably, two ends of the mesh partition plate are provided with slide rails, and two ends of the slide plate can be slidably engaged in the slide rails.

[0014] The present invention also provides a salt spray corrosion test method, which is performed using the above-mentioned salt spray corrosion environment simulation test system, and comprises:

[0015] 1) Clamp the workpiece on the first clamping block and the second clamping block, and push the slide into the test box;

[0016] 2) The generator barrel is filled with a salt solution, the liquid level of which is located below the through hole on the impact ball. The rotation of the stirring rod causes the salt solution to collide with the impact ball to generate salt mist, which is pumped into the test box through the second pump and sprayed on the workpiece through the nozzle;

[0017] 3) The first pump continuously pumps the salt solution in the liquid storage barrel into the generator barrel. The excess salt solution flows into the annular box through the through hole on the impact ball and flows back to the liquid storage barrel through the drain pipe, keeping the liquid level of the salt solution in the generator barrel at a certain height.

[0018] Beneficial effect: The present invention provides a salt spray corrosion environment simulation test system, the salt spray corrosion environment simulation test system comprises a base, the base is respectively provided with a salt spray generator and a test box; the salt spray generator comprises a bracket arranged on the base, the bracket is provided with a generator barrel, a first motor is arranged in the bracket, a stirring rod is connected to the output shaft of the first motor, the stirring rod is located in the generator barrel, a plurality of hollow impact balls are arranged around the inner wall of the generator barrel, a plurality of through holes are formed in the upper half of the impact balls, the generator barrel is provided with a plurality of hollow impact balls, and the upper half of the impact balls is provided with a plurality of through holes. A hollow annular box is formed on the outer wall of the generator barrel, and the hollow annular box is connected to the impact ball. A liquid storage barrel is arranged on the base, and a liquid discharge pipe is connected to the annular box, and the liquid discharge pipe is at least partially located in the liquid storage barrel. A first pump is arranged on the liquid storage barrel, and the first pump is connected to the generator barrel through a first pipe. A second pipe is connected to the upper end of the generator barrel. A second pump connected to the second pipe is arranged on the outer wall of the test box, and a third pipe connected to the second pump is arranged in the test box, and a plurality of nozzles are arranged on the third pipe. During operation, the workpiece is clamped on the first clamping block and the second clamping block, and the slide is pushed into the test box; the generator barrel is filled with a salt solution, and the liquid level of the salt solution is located below the through hole on the impact ball. By rotating the stirring rod, the salt solution collides with the impact ball to generate salt mist, which is pumped into the test box through the second pump and sprayed on the workpiece through the nozzle; the first pump continuously pumps the salt solution in the liquid storage barrel into the generator barrel, and the excess salt solution flows into the annular box through the through hole on the impact ball, and flows back into the liquid storage barrel through the discharge pipe, so as to maintain the liquid level of the salt solution in the generator barrel at a certain height. The salt spray generator can continuously replenish the salt solution into the generator barrel through the first pump and the flow controller, and the excess salt solution can flow back into the liquid storage barrel, and the liquid level of the salt solution is always maintained at the impact ball. By stirring the salt solution, it collides with the impact ball to generate salt spray, and then the salt spray is pumped into the test box through the second pump to simulate the marine salt spray environment.

[0019] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural diagram of the salt spray corrosion environment simulation test system provided by the present invention;

[0022] Figure 2 It is a side view of the salt spray corrosion environment simulation test system provided by the present invention;

[0023] Figure 3 yes Figure 2 A magnified view of part A;

[0024] Figure 4 It is a structural diagram of a U-shaped frame in the salt spray corrosion environment simulation test system provided by the present invention;

[0025] Figure 5 The figure is an internal structure diagram of a salt spray generator in the salt spray corrosion environment simulation test system provided by the present invention.

[0026] Description of Reference Numerals

[0027] 1-base; 2-bracket; 3-ring box; 4-generator barrel; 5-liquid storage barrel; 6-first pump; 7-liquid discharge pipe; 8-first tube; 9-second tube; 10-second pump; 11-impact ball; 12-first motor; 13-stirring rod; 14-third tube; 15-test box; 16-net partition; 17-collection box; 18-first clamping block; 19-first axis; 20-first spring; 21-slide plate; 22-second clamping block; 23-frame; 24-second motor; 25-second axis; 26-U-shaped frame; 27-rod body. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0029] like Figure 1-5As shown: The present invention provides a salt spray corrosion environment simulation test system, the salt spray corrosion environment simulation test system comprises a base 1, the base 1 is respectively provided with a salt spray generator and a test box 15; the salt spray generator comprises a bracket 2 arranged on the base 1, the bracket 2 is provided with a generator barrel 4, a first motor 12 is arranged in the bracket 2, a stirring rod 13 is connected to the output shaft of the first motor 12, the stirring rod 13 is located in the generator barrel 4, a plurality of hollow impact balls 11 are arranged around the inner wall of the generator barrel 4, a plurality of through holes are formed in the upper half of the impact balls 11, and the generator barrel 4 A hollow annular box 3 is formed on the outer wall, and the hollow annular box 3 is connected to the impact ball 11. A liquid storage barrel 5 is provided on the base 1. The annular box 3 is connected with a liquid discharge pipe 7, and the liquid discharge pipe 7 is at least partially located in the liquid storage barrel 5. A first pump 6 is provided on the liquid storage barrel 5, and the first pump 6 is connected to the generator barrel body 4 through a first pipe 8. The upper end of the generator barrel body 4 is connected with a second pipe 9. A second pump 10 connected to the second pipe 9 is provided on the outer wall of the test box 15, and a third pipe 14 connected to the second pump 10 is provided in the test box 15, and a plurality of nozzles are provided on the third pipe 14. During operation, the workpiece is clamped on the first clamping block and the second clamping block, and the slide is pushed into the test box; the generator barrel is filled with a salt solution, and the liquid level of the salt solution is located below the through hole on the impact ball. By rotating the stirring rod, the salt solution collides with the impact ball to generate salt mist, which is pumped into the test box through the second pump and sprayed on the workpiece through the nozzle; the first pump continuously pumps the salt solution in the liquid storage barrel into the generator barrel, and the excess salt solution flows into the annular box through the through hole on the impact ball, and flows back into the liquid storage barrel through the discharge pipe, so as to maintain the liquid level of the salt solution in the generator barrel at a certain height. The salt spray generator can continuously replenish the salt solution into the generator barrel through the first pump and the flow controller, and the excess salt solution can flow back into the liquid storage barrel, and the liquid level of the salt solution is always maintained at the impact ball. By stirring the salt solution, it collides with the impact ball to generate salt spray, and then the salt spray is pumped into the test box through the second pump to simulate the marine salt spray environment.

[0030] In a preferred embodiment of the present invention, in order to enable the salt solution to effectively collide with the impact balls to effectively generate salt mist, the number of the impact balls 11 is not less than 3 groups, and the multiple groups of impact balls 11 are equidistantly arranged around.

[0031] In a preferred embodiment of the present invention, in order to control the amount of the pumped salt solution, a flow controller is provided on the first tube 8 .

[0032] In a preferred embodiment of the present invention, in order to clamp the workpiece, a slide plate 21 is slidably provided in the test box 15 , and a clamping assembly is provided on the slide plate 21 .

[0033] In a preferred embodiment of the present invention, the clamping assembly includes a frame 23 disposed on the slide 21, a first shaft 19 is slidably disposed at one end of the frame 23, a first clamping block 18 is rotatably disposed on the first shaft 19, a first spring 20 is sleeved on the first shaft 19, and a second clamping block 22 is disposed at the other end of the frame 23. The workpiece can be clamped between the two clamping blocks by using the spring.

[0034] In a preferred embodiment of the present invention, in order to drive the workpiece to rotate, thereby effectively spraying salt mist on various parts of the workpiece, and to facilitate the pulling and pulling of the slide plate, and to facilitate loading and unloading, a second shaft 25 is rotatably provided on the frame 23, one end of the second shaft 25 is connected to the second clamping block 22, and the other end is provided with a rod body 27; a second motor 24 is provided on the outer wall of the test box 15, and the output shaft of the second motor 24 extends to the interior of the test box 15, and is connected to a U-shaped frame 26, so that the U-shaped frame 26 can drive the rod body 27 to rotate.

[0035] In a preferred embodiment of the present invention, in order to allow the second shaft to rotate smoothly, a bearing is provided on the frame 23, and the second shaft 25 is rotatably disposed in the bearing.

[0036] In a preferred embodiment of the present invention, in order to facilitate the collection of the generated salt spray liquid, a mesh partition plate 16 is provided in the middle of the test box 15, the slide plate 21 is slidably provided on the mesh plate 16, the slide plate 21 is provided with hollow holes, and a collection box 17 is provided below the mesh partition plate 16.

[0037] In a preferred embodiment of the present invention, in order to limit the pulling out of the slide plate, slide rails are provided at both ends of the mesh partition plate 16, and both ends of the slide plate 21 can be slidably engaged in the slide rails.

[0038] The present invention also provides a salt spray corrosion test method, which is performed using the salt spray corrosion environment simulation test system according to claim 9, comprising:

[0039] 1. Clamp the workpiece on the first clamping block 18 and the second clamping block 22, and push the slide plate 21 into the test box 15;

[0040] 2. The generator barrel 4 is filled with a salt solution, the liquid level of which is located below the through hole on the impact ball 11. The rotation of the stirring rod 13 causes the salt solution to collide with the impact ball to generate salt mist, which is pumped into the test box 15 through the second pump 10 and sprayed on the workpiece through the nozzle;

[0041] 3. The first pump 6 continuously pumps the saline solution in the liquid storage barrel 5 into the generator barrel body 4. The excess saline solution flows into the annular box 3 through the through hole on the impact ball 11 and flows back to the liquid storage barrel 5 through the liquid discharge pipe 7, so as to keep the liquid level of the saline solution in the generator barrel body 4 at a certain height.

[0042] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0044] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A salt spray corrosion environment simulation test system, characterized in that: The salt spray corrosion environment simulation test system comprises a base (1), on which a salt spray generator and a test box (15) are respectively arranged; The salt spray generator comprises a bracket (2) arranged on the base (1), a generator barrel (4) being arranged on the bracket (2), a first motor (12) being arranged in the bracket (2), a stirring rod (13) being connected to the output shaft of the first motor (12), the stirring rod (13) being located in the generator barrel (4), a plurality of hollow impact balls (11) being arranged around the inner wall of the generator barrel (4), a plurality of through holes being formed in the upper half of the impact balls (11), a hollow annular box (3) being formed on the outer wall of the generator barrel (4), the hollow annular box (3) being connected to the impact balls (11), and the The base (1) is provided with a liquid storage barrel (5), the annular box (3) is connected with a liquid discharge pipe (7), the liquid discharge pipe (7) is at least partially located in the liquid storage barrel (5), the liquid storage barrel (5) is provided with a first pump (6), the first pump (6) is connected with the generator barrel body (4) through a first pipe (8), the upper end of the generator barrel body (4) is connected with a second pipe (9), the outer wall of the test box (15) is provided with a second pump (10) connected with the second pipe (9), the test box (15) is provided with a third pipe (14) connected with the second pump (10), and the third pipe (14) is provided with a plurality of nozzles.

2. The salt spray corrosion environment simulation test system according to claim 1 is characterized in that: The number of the impact balls (11) is no less than 3 groups, and the multiple groups of impact balls (11) are arranged equidistantly around each other.

3. The salt spray corrosion environment simulation test system according to claim 2 is characterized in that: The first tube (8) is provided with a flow controller.

4. The salt spray corrosion environment simulation test system according to claim 3 is characterized in that: A slide plate (21) is slidably arranged in the test box (15), and a clamping assembly is arranged on the slide plate (21).

5. The salt spray corrosion environment simulation test system according to claim 4 is characterized in that: The clamping assembly comprises a frame (23) arranged on the slide plate (21), a first shaft (19) is slidably arranged at one end of the frame (23), a first clamping block (18) is rotatably arranged on the first shaft (19), a first spring (20) is sleeved on the first shaft (19), and a second clamping block (22) is arranged at the other end of the frame (23).

6. The salt spray corrosion environment simulation test system according to claim 5, characterized in that: A second shaft (25) is rotatably provided on the frame (23); one end of the second shaft (25) is connected to the second clamping block (22), and the other end is provided with a rod (27); A second motor (24) is disposed on the outer wall of the test box (15); an output shaft of the second motor (24) extends into the interior of the test box (15) and is connected to a U-shaped frame (26), so that the U-shaped frame (26) can drive the rod body (27) to rotate.

7. The salt spray corrosion environment simulation test system according to claim 6, characterized in that: A bearing is arranged on the frame (23), and the second shaft (25) is rotatably arranged in the bearing.

8. The salt spray corrosion environment simulation test system according to claim 7, characterized in that: A mesh partition plate (16) is arranged in the middle of the test box (15), the slide plate (21) is slidably arranged on the mesh plate (16), the slide plate (21) is provided with hollow holes, and a collection box (17) is arranged below the mesh partition plate (16).

9. The salt spray corrosion environment simulation test system according to claim 8, characterized in that: Slide rails are provided at both ends of the mesh partition plate (16), and both ends of the slide plate (21) are slidably engaged in the slide rails.

10. A salt spray corrosion test method, characterized in that: The salt spray corrosion test method is performed using the salt spray corrosion environment simulation test system according to claim 9, comprising: 1) Clamp the workpiece on the first clamping block (18) and the second clamping block (22), and push the slide plate (21) into the test box (15); 2) The generator barrel (4) is filled with a salt solution, the liquid level of the salt solution is located below the through hole on the impact ball (11), and the salt solution collides with the impact ball through the rotation of the stirring rod (13) to generate salt mist, which is pumped into the test box (15) through the second pump (10) and sprayed on the workpiece through the nozzle; 3) The first pump (6) continuously pumps the saline solution in the liquid storage barrel (5) into the generator barrel body (4), and the excess saline solution flows into the annular box (3) through the through hole on the impact ball (11), and flows back to the liquid storage barrel (5) through the liquid discharge pipe (7), so as to maintain the liquid level of the saline solution in the generator barrel body (4) at a certain height.

Images