Cyclic salt spray test apparatus for detecting corrosion resistance of monocrystalline nitride material

Abstract

The application provides a circulating salt mist test equipment for detecting corrosion resistance of nitrided monocrystalline material, and relates to the field of salt mist test equipment.The equipment comprises a base, a salt mist test box and a control box are installed on the left and right sides of the upper end face of the base, a partition is installed in the middle of the inside of the salt mist test box, a rectangular opening is formed in the partition, a vertical rotating shaft is rotatably connected in the rectangular opening, and a vertical rotating plate is fixedly connected to the outside of the vertical rotating shaft.The inside of the salt mist test box is divided into two independent test cavities by the partition, the gap between the vertical rotating plate and the rectangular opening in the partition is effectively sealed by the frame-shaped sealing sponge, the salt mist test equipment can simultaneously perform salt mist and drying functions, and the test efficiency of the corrosion resistance of the test block is significantly improved.The problem that the salt mist and drying functions cannot be simultaneously performed during the salt mist and drying test of the current salt mist test equipment is solved, and the test efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of salt spray testing equipment technology, and in particular to cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials. Background Technology

[0002] Single-crystal nitride materials, due to their excellent hardness, thermal stability, and chemical stability, have been widely used in numerous fields such as semiconductors, aerospace, and high-end machinery manufacturing. In practical applications, single-crystal nitride materials are often exposed to various corrosive environments, such as humid air, acidic or alkaline environments, and salt spray. Especially in electronic devices used in marine environments or industrially polluted areas, the single-crystal nitride components may be subjected to long-term salt spray corrosion. To ensure the reliability of single-crystal nitride materials in these corrosive environments, it is necessary to accurately test their corrosion resistance using salt spray testing equipment.

[0003] Currently, when testing the corrosion resistance of nitride single-crystal material specimens, a combined cyclic test of salt spray and drying environments is required to accurately simulate their actual application environment. However, current salt spray testing equipment often only has salt spray spray testing capabilities. For drying testing, the specimens after the salt spray test need to be transported to external drying equipment, making the entire testing process cumbersome and complex. Even if some salt spray testing equipment has dual functions of salt spray and drying, these functions cannot be performed simultaneously; the drying test can only be conducted after the salt spray test is completed. This significantly reduces the testing efficiency of the salt spray testing equipment for the corrosion resistance of the specimens. Furthermore, during the spraying process, because the salt spray settles from top to bottom, a large amount of salt spray components adhere to the upper surface of the specimen, while the lower surface is less affected by the specimen's own shielding, resulting in less salt spray adhesion. This uneven distribution of salt spray adhesion across different surfaces of the specimen not only disrupts the uniformity of the testing environment but also leads to deviations in the test results, making it difficult to accurately reflect the true corrosion resistance of the nitride single-crystal material. Summary of the Invention

[0004] This invention relates to a cyclic salt spray testing device for detecting the corrosion resistance of nitride single crystal materials. It solves the problem that current salt spray testing devices cannot perform salt spray and drying functions simultaneously during salt spray and drying tests, thus reducing testing efficiency. Furthermore, the uneven adhesion of salt spray as it settles from top to bottom during spraying disrupts the uniformity of the testing environment, making it difficult for the test results to accurately reflect the true corrosion resistance of nitride single crystal materials.

[0005] In a first aspect, this invention provides a cyclic salt spray testing device for detecting the corrosion resistance of nitride single crystal materials, specifically comprising: a base, on which a salt spray test chamber and a control box are respectively installed on the left and right sides of the upper end face of the base; a partition is installed in the middle of the interior of the salt spray test chamber, and a rectangular opening is provided on the partition, with a vertical rotating shaft rotatably connected inside the rectangular opening, and a vertical rotating plate is fixedly connected to the outside of the vertical rotating shaft; two support rods are fixedly connected to the upper part of each of the left and right end faces of the vertical rotating plate, and a support plate is rotatably connected between two adjacent support rods via a rotating shaft; a dry-wet switching mechanism is provided at the lower end of the vertical rotating shaft at the bottom of the base; a drying mechanism and a salt spray blowing mechanism are respectively provided on the left and right sides of the interior of the salt spray test chamber, and a reciprocating drive assembly is installed on the salt spray test chamber; a waste heat utilization mechanism is installed on the front side of the salt spray test chamber; and a flipping drive mechanism is provided on the vertical rotating plate.

[0006] Furthermore, a control panel is installed on the control box; a H-shaped sealing box is installed on the top of the salt spray test chamber, and a test chamber cover is rotatably connected to the rear side of the top of the salt spray test chamber via a rotating shaft, with a partition plate provided inside the middle side of the test chamber cover; a frame-shaped sealing sponge is provided inside the rectangular opening on the partition plate, and the frame-shaped sealing sponge is located outside the vertical rotating plate.

[0007] Furthermore, a spray tower is provided on the rear right side inside the salt spray test chamber, and an air outlet is provided on the left side of the rear end face of the salt spray test chamber, which is connected to the interior left side of the salt spray test chamber. An exhaust hose is connected to the rear end of the air outlet. A temperature sensor is installed on the rear right side inside the salt spray test chamber.

[0008] Furthermore, the lower end of the vertical rotating shaft passes through the partition, the salt spray test chamber, and the base; the upper surface of the support plate has rectangular through-holes evenly spaced, and two guide rods are fixedly connected inside each rectangular through-hole; a clamping block is slidably connected inside each rectangular through-hole through the guide rods, and a spring is sleeved on the outside of each guide rod; an installation port is provided on the vertical rotating plate; the rotating shaft is rotatably connected to the support rod, and the rotating shaft is fixedly connected to the support plate.

[0009] Furthermore, the drying mechanism includes a hot air blower, which is installed on the left end face of the salt spray test chamber. The outlet of the hot air blower is connected to a flexible air supply hose, which penetrates the left side wall of the salt spray test chamber. The outlet end of the flexible air supply hose is connected to a blower box, and the right end face of the blower box is uniformly provided with blowers. The upper and lower sides of the blower box are fixedly connected to support slide cylinders, and each support slide cylinder is slidably connected to a support guide rod fixed inside the salt spray test chamber.

[0010] Furthermore, the salt spray blowing mechanism includes a support frame, an anti-salt spray fan is installed inside the support frame, and a guide slide cylinder is fixedly connected to both the upper and lower sides of the support frame, and a guide slide rod fixed inside the salt spray test chamber is slidably connected inside each guide slide cylinder.

[0011] Furthermore, the reciprocating drive assembly includes a dual-axis motor, drive shafts, and drive frames. The dual-axis motor is mounted on the upper part of the rear end face of the salt spray test chamber, and a transmission shaft is fixedly connected to both ends of the motor's rotating shaft. Both transmission shafts are rotatably connected to the rear end face of the salt spray test chamber, and a transmission pulley is installed at the opposite ends of the two transmission shafts. There are two drive shafts, which are rotatably connected to the upper parts of the left and right end faces of the salt spray test chamber, and each drive shaft passes through the left and right side walls of the salt spray test chamber. A drive pulley is installed at the opposite ends of the two drive shafts, and the two drive pulleys are connected to the two transmission pulleys via belts. A drive disc is installed at the opposite ends of the two drive shafts, and an actuating post is provided at the edge of the opposite surface of the two drive discs. There are two drive frames, with the left drive frame fixedly connected between two support slides and the right drive frame fixedly connected between two guide slides. The two actuating posts are slidably connected to the inner sides of the two drive frames.

[0012] Furthermore, the waste heat utilization mechanism includes a fan, which is installed on the front end of the salt spray test chamber. The fan's air intake is connected to an exhaust pipe, and a solenoid valve is installed on the exhaust pipe. The fan's air outlet is connected to a delivery pipe. Both the exhaust pipe and the delivery pipe penetrate the front side wall of the salt spray test chamber. The rear end of the delivery pipe is connected to a heating chamber, which is installed inside the lower side of the salt spray test chamber. The upper surface of the heating chamber is uniformly provided with heat-conducting fins. The rear air outlet of the heating chamber is connected to a flexible air outlet that penetrates the rear side wall of the salt spray test chamber.

[0013] Furthermore, the dry / wet switching mechanism includes an electric cylinder and a gear. The electric cylinder is installed at the bottom of the base, and the telescopic rod of the electric cylinder is fixedly connected to a rack. A T-shaped slide bar is provided on the back of the rack, and the rack is slidably connected to a slide rail through the T-shaped slide bar. The slide rail is installed at the bottom of the base. The gear is fixedly connected to the lower end of the vertical rotating shaft, and the gear meshes with the rack. When the telescopic rod of the electric cylinder extends to its limit position, the rack, along with the gear, the vertical rotating shaft, and the vertical rotating plate, rotates 180 degrees clockwise.

[0014] Furthermore, the tilting drive mechanism includes a protective shell A, a protective shell B, a worm gear, and a worm wheel. The protective shell A is installed inside the mounting port, and a tilting drive motor is installed inside the protective shell A. A drive pulley is installed on the rotating shaft of the tilting drive motor. There are two worm gears, which are rotatably connected to the front sides of the left and right ends of the vertical rotating plate. There are two worm wheels, which are fixedly installed at the front ends of the two rotating shafts on the front side. The two worm wheels mesh with the two worm gears. A driven pulley is installed at the lower end of each worm gear, and the two driven pulleys are connected to the drive pulley via belt drive. There are two protective shells B, which are installed on the front sides of the left and right ends of the vertical rotating plate, and are located outside the two worm gears and the two worm wheels.

[0015] This invention provides a cyclic salt spray testing device for detecting the corrosion resistance of nitride single crystal materials, which has the following beneficial effects:

[0016] First, in this invention, the interior of the salt spray test chamber is divided into two independent test chambers by a partition, and the gap between the vertical rotating plate and the rectangular opening on the partition is effectively sealed by a frame-shaped sealing sponge. This allows the salt spray testing equipment to perform both salt spray and drying functions simultaneously, significantly improving the testing efficiency of the corrosion resistance performance of the test blocks. Furthermore, through the cooperation of the vertical rotating plate and the dry-wet switching mechanism, the positions of the test blocks on the left and right sides of the vertical rotating plate can be quickly switched. Thus, when adjusting the test blocks from salt spray testing to drying testing, there is no need to transport the test blocks after salt spray testing to other external drying equipment, greatly simplifying the testing process and enhancing the convenience and continuity of equipment operation.

[0017] Secondly, the flipping drive mechanism in this invention enables the flipping drive motor to be started during testing. The flipping drive motor drives two worm gears, two worm wheels, two front rotating shafts, two support plates, and the test block clamped on the support plates to flip. By flipping the test block, the salt spray falling from top to bottom adheres more evenly to the upper and lower surfaces of the test block and other surfaces, preventing deviations in the test results. This allows for a more accurate reflection of the true corrosion resistance of the nitride single crystal material, providing a scientific and precise evaluation basis for the research and development and quality control of nitride single crystal materials.

[0018] Third, by setting up a reciprocating drive component, the dual-axis motor can be started during the test. The dual-axis motor drives two transmission shafts, two drive shafts, and two drive discs to rotate synchronously. Then, the drive discs drive two actuating columns to rotate. At this time, the two drive frames will drive the air box and salt spray blowing mechanism to move back and forth, so that the hot air and salt spray form a dynamic coverage area. This effectively avoids the phenomenon of oversaturation or undersaturation in some parts of the test block, and ensures that the hot air and salt spray contact the surface of the test block at a uniform speed and concentration, which greatly improves the drying effect of the test block and the salt spray test effect.

[0019] Fourth, the waste heat utilization mechanism in this invention allows the solenoid valve to be opened during the test, followed by the start of the fan. The high-temperature air inside the left test chamber of the salt spray test chamber is then transported through the exhaust pipe to the air supply pipe and the interior of the heating chamber, heating the heating chamber and the heat-conducting plate. This enables precise control of the air temperature inside the right test chamber of the salt spray test chamber, eliminating the need for additional hot air equipment and effectively improving the thermal energy utilization rate. This ensures the temperature requirements of the salt spray test environment while significantly reducing energy consumption. Attached Figure Description

[0020] To more clearly illustrate the technical solution of the present invention, the accompanying drawings of the present invention will be briefly described below.

[0021] In the attached diagram:

[0022] Figure 1 A structural schematic diagram of the overall structure of this application is shown;

[0023] Figure 2 A structural schematic diagram of this application from a rear view is shown;

[0024] Figure 3 A structural schematic diagram of this application is shown from the bottom view;

[0025] Figure 4 This shows a schematic diagram of the overall structure of this application after disassembly;

[0026] Figure 5 This paper shows a partial cross-sectional structural schematic diagram of the salt spray test chamber of this application;

[0027] Figure 6 A schematic diagram of the disassembled partition and vertical rotating plate of this application is shown;

[0028] Figure 7 This paper shows a partial cross-sectional structural schematic diagram of the protective shell A and the protective shell B of this application;

[0029] Figure 8 A schematic diagram of the vertical rotating plate of this application is shown;

[0030] Figure 9 A structural schematic diagram of the support plate, rectangular through-hole, guide rod, and clamping block of this application is shown;

[0031] Figure 10 This paper shows a partial cross-sectional structural schematic diagram of the protective shell A of this application;

[0032] Figure 11 A schematic diagram of the drying mechanism, salt spray blowing mechanism, and reciprocating drive assembly of this application is shown.

[0033] Figure 12 A schematic diagram of the reciprocating drive component of this application is shown;

[0034] Figure 13 A schematic diagram of the salt spray test chamber and waste heat utilization mechanism of this application is shown;

[0035] Figure 14 A schematic diagram of the flipping drive mechanism of this application is shown.

[0036] List of reference numerals

[0037] 1. Base; 101. Salt spray test chamber; 102. Control box; 103. Control panel; 104. Partition; 105. H-shaped sealing box; 106. Test chamber cover; 107. Divider plate; 108. Frame-shaped sealing sponge; 109. Spray tower; 1011. Air outlet; 1012. Exhaust hose; 1013. Temperature sensor;

[0038] 2. Vertical rotating plate; 201. Vertical rotating shaft; 202. Support rod; 203. Rotating shaft; 204. Support plate; 205. Rectangular through-hole; 206. Guide rod; 207. Clamping block; 208. Mounting port;

[0039] 3. Drying mechanism; 301. Hot air blower; 302. Air supply hose; 303. Air box; 304. Support slide;

[0040] 4. Salt spray blowing mechanism; 401. Support frame; 402. Anti-salt spray fan; 403. Guide slide;

[0041] 5. Reciprocating drive assembly; 501. Dual-axis motor; 502. Transmission shaft; 503. Drive shaft; 504. Drive disc; 505. Drive frame; 506. Actuating column;

[0042] 6. Waste heat utilization mechanism; 601. Fan; 602. Exhaust duct; 603. Solenoid valve; 604. Air supply duct; 605. Heating box; 606. Heat conduction plate; 607. Air outlet hose;

[0043] 7. Dry / wet switching mechanism; 701. Electric cylinder; 702. Rack; 703. Gear; 704. Slide rail;

[0044] 8. Tilting drive mechanism; 801. Protective shell A; 802. Protective shell B; 803. Tilting drive motor; 804. Worm gear; 805. Worm wheel. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Example 1: Please refer to Figures 1 to 14 :

[0047] This invention proposes a cyclic salt spray testing device for detecting the corrosion resistance of nitride single crystal materials, comprising: a base 1, with a salt spray test chamber 101 and a control box 102 respectively installed on the left and right sides of the upper end face of the base 1; a partition 104 is installed in the middle of the salt spray test chamber 101, forming two test chambers inside the salt spray test chamber 101, and a rectangular opening is provided on the partition 104, with a vertical rotating shaft 201 rotatably connected inside the rectangular opening, and a vertical rotating plate 2 is fixedly connected to the outside of the vertical rotating shaft 201; two support rods 202 are fixedly connected to the upper part of each of the left and right end faces of the vertical rotating plate 2, and the two adjacent support rods 202 are connected by a rotating shaft. The rotating shaft 203 is rotatably connected to the support plate 204; the lower end of the vertical rotating shaft 201 is provided with a dry-wet switching mechanism 7 at the bottom of the base 1; the left and right sides of the inside of the salt spray test chamber 101 are respectively provided with a drying mechanism 3 and a salt spray blowing mechanism 4, and a reciprocating drive assembly 5 is installed on the salt spray test chamber 101; a waste heat utilization mechanism 6 is installed on the front side of the salt spray test chamber 101; a flipping drive mechanism 8 is provided on the vertical rotating plate 2. Through the setting of the flipping drive mechanism 8, the test block can be flipped, so that the salt spray falling from top to bottom adheres more evenly to the upper and lower surfaces of the test block and other surfaces, avoiding deviations in the test results.

[0048] A control panel 103 is installed on the control box 102; a H-shaped sealing box 105 is installed on the top of the salt spray test chamber 101, and a test chamber cover 106 is rotatably connected to the rear side of the top of the salt spray test chamber 101 via a rotating shaft. A partition plate 107 is provided inside the middle side of the test chamber cover 106; a frame-shaped sealing sponge 108 is provided inside the rectangular opening on the partition plate 104, and the frame-shaped sealing sponge 108 is located outside the vertical rotating plate 2. The frame-shaped sealing sponge 108 is used to seal the gap between the vertical rotating plate 2 and the rectangular opening on the partition plate 104.

[0049] A spray tower 109 is installed on the rear right side inside the salt spray test chamber 101. The spray tower 109 is a mature existing technology. The principle of the spray tower 109 spraying salt spray will not be described here.

[0050] An air outlet 1011 is provided on the left side of the rear end face of the salt spray test chamber 101, and the air outlet 1011 communicates with the interior of the left side of the salt spray test chamber 101. An exhaust hose 1012 is connected to the rear end of the air outlet 1011. A temperature sensor 1013 is installed on the rear right side of the interior of the salt spray test chamber 101. The temperature sensor 1013 is used to monitor the temperature inside a test chamber on the right side of the salt spray test chamber 101 in real time.

[0051] The lower end of the vertical rotating shaft 201 passes through the partition plate 104, the salt spray test chamber 101, and the base 1; the upper surface of the support plate 204 has rectangular through-holes 205 evenly distributed, and two guide rods 206 are fixedly connected inside each rectangular through-hole 205. A clamping block 207 is slidably connected inside each rectangular through-hole 205 through the guide rods 206. The clamping block 207 is used to clamp the nitride single crystal material sample block, and a spring is sleeved on the outside of each guide rod 206 to give the clamping block 207 good clamping force; the vertical rotating plate 2 has an installation port 208; the rotating shaft 203 is rotatably connected to the support rod 202, and the rotating shaft 203 is fixedly connected to the support plate 204.

[0052] The drying mechanism 3 includes a hot air blower 301, which is installed on the left end face of the salt spray test chamber 101. The air outlet of the hot air blower 301 is connected to a flexible air supply hose 302, which penetrates the left side wall of the salt spray test chamber 101. The air outlet of the flexible air supply hose 302 is connected to a blower box 303, and the right end face of the blower box 303 is uniformly equipped with blowers. Supporting slide cylinders 304 are fixedly connected to both the upper and lower sides of the blower box 303, and each supporting slide cylinder 304 is slidably connected to a supporting guide rod fixed inside the salt spray test chamber 101. The drying mechanism 3 is used to perform drying tests on nitride single crystal material samples.

[0053] The salt spray blowing mechanism 4 includes a support frame 401, an anti-salt spray fan 402 installed inside the support frame 401, and a guide slide cylinder 403 fixedly connected to both the upper and lower sides of the support frame 401. Each guide slide cylinder 403 is slidably connected to a guide slide rod fixed inside the salt spray test chamber 101. With the setting of the salt spray blowing mechanism 4, the anti-salt spray fan 402 can be activated during the process of spraying salt spray from the spray tower 109, thereby guiding and blowing the salt spray onto the surface of the test block, improving the salt spray test effect.

[0054] The reciprocating drive assembly 5 includes a dual-axis motor 501, drive shafts 503, and a drive frame 505. The dual-axis motor 501 is mounted on the upper part of the rear end face of the salt spray test chamber 101, and a transmission shaft 502 is fixedly connected to both ends of the rotating shaft of the dual-axis motor 501. Both transmission shafts 502 are rotatably connected to the rear end face of the salt spray test chamber 101, and a transmission pulley is installed at the opposite ends of the two transmission shafts 502. There are two drive shafts 503, and the two drive shafts 503 are rotatably connected to the upper parts of the left and right end faces of the salt spray test chamber 101, respectively. The two drive shafts 503 pass through the left and right side walls of the salt spray test chamber 101, and a drive pulley is installed at the opposite ends of the two drive shafts 503. The two drive pulleys are connected to the two transmission pulleys by a belt. The transmission connection includes a drive disc 504 mounted on each of the opposite ends of the two drive shafts 503, and an actuating post 506 is provided at the edge of the opposite surface of each of the two drive discs 504. There are two drive frames 505, with the left drive frame 505 fixedly connected between the two support slide cylinders 304 and the right drive frame 505 fixedly connected between the two guide slide cylinders 403. The two actuating posts 506 are slidably connected to the inner sides of the two drive frames 505 respectively. The reciprocating drive assembly 5 is used to move the air box 303 and the salt spray blowing mechanism 4 back and forth, so that the hot air and salt spray form a dynamic coverage area, effectively avoiding the phenomenon of local oversaturation or undersaturation of the test block, and ensuring that the hot air and salt spray contact the surface of the test block at a uniform speed and concentration.

[0055] The dry / wet switching mechanism 7 includes an electric cylinder 701 and a gear 703. The electric cylinder 701 is installed at the bottom of the base 1, and the telescopic rod of the electric cylinder 701 is fixedly connected to a rack 702. A T-shaped slide bar is provided on the back of the rack 702, and the rack 702 is slidably connected to a slide rail 704 through the T-shaped slide bar. The slide rail 704 is installed at the bottom of the base 1. The gear 703 is fixedly connected to the lower end of the vertical rotating shaft 201, and the gear 703 meshes with the rack 702. When the telescopic rod of the electric cylinder 701 extends to its limit position, the rack 702, along with the gear 703, the vertical rotating shaft 201, and the vertical rotating plate 2, rotates clockwise by 180 degrees. Through the setting of the electric cylinder 701, the maximum unidirectional rotation angle of the vertical rotating plate 2 during rotation switching is 180 degrees, avoiding the entanglement of the cable connected to the flip drive motor 803.

[0056] The tilting drive mechanism 8 includes a protective shell A801, a protective shell B802, a worm gear 804, and a worm wheel 805. The protective shell A801 ​​is installed inside the mounting port 208, and a tilting drive motor 803 is installed inside the protective shell A801. A drive pulley is mounted on the shaft of the tilting drive motor 803. There are two worm gears 804, which are rotatably connected to the front sides of the left and right ends of the vertical rotating plate 2. There are two worm wheels 805, which are fixedly installed at the front ends of the two rotating shafts 203 on the front side. 5 meshes with two worm gears 804 respectively. Each worm gear 804 has a driven pulley installed at its lower end. The two driven pulleys are connected to the driving pulley via belt drive. There are two protective shells B802. The two protective shells B802 are installed on the front side of the left and right ends of the vertical rotating plate 2 respectively. The two protective shells B802 are located outside the two worm gears 804 and the two worm wheels 805 respectively. Through the setting of the flipping drive mechanism 8, the test block can be flipped, so that the salt spray falling from top to bottom adheres more evenly to the upper and lower surfaces and other surfaces of the test block.

[0057] Example 2, based on Example 1, such as Figure 1 and Figure 13 As shown, the waste heat utilization mechanism 6 includes a fan 601, which is installed on the front end of the salt spray test chamber 101. The fan 601 has an air intake connected to an exhaust pipe 602, and an electromagnetic valve 603 is installed on the exhaust pipe 602. The fan 601 has an air outlet connected to an air supply pipe 604. Both the exhaust pipe 602 and the air supply pipe 604 penetrate the front side wall of the salt spray test chamber 101. The rear end of the air supply pipe 604 is connected to a heating chamber 605. The heating chamber 605 is installed on the lower side inside the salt spray test chamber 101, and heat-conducting plates 606 are uniformly arranged on the upper surface of the heating chamber 605. The rear end of the heating chamber 605 has an exhaust hose 607 that penetrates the rear side wall of the salt spray test chamber 101. By incorporating the waste heat utilization mechanism 6, the solenoid valve 603 can be opened via the control panel 103 during the test, and the fan 601 can be started. At this time, a negative pressure is generated inside the exhaust pipe 602, and the high-temperature air inside the left test chamber of the salt spray test chamber 101 is then transported through the exhaust pipe 602 to the air supply pipe 604 and the heating chamber 605, heating the heating chamber 605 and the heat-conducting plate 606. Finally, the air temperature inside the right test chamber of the salt spray test chamber 101 is heated, thus eliminating the need for additional hot air equipment to heat the right test chamber of the salt spray test chamber 101, effectively improving the utilization rate of thermal energy and making it more energy-efficient.

[0058] The working principle of this invention is as follows: When in use, the nitride single crystal material test block (hereinafter referred to as the test block) to be tested is first clamped into the rectangular through-hole 205. Specifically, when clamping, the clamping block 207 is slid towards the external spring of the guide rod 206, so that the external spring of the guide rod 206 is compressed. Then, the test block is placed into the rectangular through-hole 205, and then the clamping block 207 is released. At this time, the clamping block 207 clamps the test block under the elastic force of the external spring of the guide rod 206.

[0059] After the test block is clamped, clean water is injected into the H-shaped sealing box 105. Then, the test chamber cover 106 is closed, so that the bottom of the test chamber cover 106 and the lower side of the partition plate 107 are both in the clean water inside the H-shaped sealing box 105. At this time, the test chamber cover 106 and the partition plate 107 seal the top of the two test chambers on the salt spray test chamber 101. Then, the salt spray test chamber 101 is started, and the salt spray is sprayed out through the spray tower 109. At this time, the test chamber on the right side of the salt spray test chamber 101 is filled with salt spray. The salt spray will settle from top to bottom onto the upper surface of the test block. At this time, the hot air blower 301 is started through the control panel 103, so that the hot air blower 301 generates hot air and delivers the hot air to the inside of the blower box 303 through the air delivery hose 302. Then, the hot air is blown by the blower head on the right side of the blower box 303 onto the test block in the test chamber on the left side of the salt spray test chamber 101. After the test blocks in each test chamber are tested, the extension rod of the electric cylinder 701 is extended by the control panel 103, which moves the rack 702 to the right in a straight line. When the extension rod of the electric cylinder 701 is extended to its limit position, the rack 702, along with the gear 703, the vertical rotating shaft 201, and the vertical rotating plate 2, rotates 180 degrees clockwise, thereby quickly switching the positions of the test blocks on the left and right sides of the vertical rotating plate 2. Then, the test blocks are dried by the blower box 303 after salt spraying. After drying, the test blocks are sprayed with salt spray by the spray tower 109 for salt spray testing. This cycle of testing can be repeated. In the drying test, this salt spray testing equipment does not require the test blocks to be transported to other external drying equipment, making the entire testing process simpler. Moreover, this salt spray testing equipment can perform both salt spraying and drying functions simultaneously, which greatly improves the testing efficiency of the corrosion resistance of the test blocks.

[0060] During the test, the flip drive motor 803 and the dual-axis motor 501 are started through the control panel 103. After the flip drive motor 803 is started, it drives the two worm gears 804, the two worm wheels 805, the two front rotating shafts 203, the two support plates 204 and the test block clamped on the support plates 204 to flip. By flipping the test block, the salt spray falling from top to bottom adheres more evenly to the upper and lower surfaces of the test block and other surfaces, preventing deviations in the test results and thus more accurately reflecting the true corrosion resistance of the nitride single crystal material.

[0061] After the dual-axis motor 501 is started, it drives two transmission shafts 502, two drive shafts 503 and two drive discs 504 to rotate synchronously. Then, the drive discs 504 drive two actuating columns 506 to rotate. At this time, the two drive frames 505 will drive the air box 303 and the salt spray blowing mechanism 4 to move back and forth, so that the hot air blown out and the salt spray blown out can contact the surface of the test block more evenly, further improving the drying of the test block and the salt spray test effect.

[0062] The following points should be noted in this article:

[0063] 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0064] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0065] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. Cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials, including: A base (1) is provided, on the left and right sides of the upper end face of which a salt spray test chamber (101) and a control box (102) are respectively installed; characterized in that a partition (104) is installed in the middle of the interior of the salt spray test chamber (101), and a rectangular opening is provided on the partition (104), and a vertical rotating shaft (201) is rotatably connected inside the rectangular opening, and a vertical rotating plate (2) is fixedly connected to the outside of the vertical rotating shaft (201); two support rods (202) are fixedly connected to the upper part of the left and right end faces of the vertical rotating plate (2), and two adjacent support rods are connected to each other. A support plate (204) is rotatably connected between the support rods (202) via a rotating shaft (203); a dry-wet switching mechanism (7) is provided at the bottom of the base (1) at the lower end of the vertical rotating shaft (201); a drying mechanism (3) and a salt spray blowing mechanism (4) are respectively provided on the left and right sides inside the salt spray test chamber (101), and a reciprocating drive assembly (5) is installed on the salt spray test chamber (101); a waste heat utilization mechanism (6) is installed on the front side of the salt spray test chamber (101); a flipping drive mechanism (8) is provided on the vertical rotating plate (2); The salt spray blowing mechanism (4) includes a support frame (401), and an anti-salt spray fan (402) is installed inside the support frame (401). The reciprocating drive assembly (5) includes a dual-axis motor (501), drive shafts (503), and drive frames (505). A drive disk (504) is installed at the opposite ends of the two drive shafts (503), and a toggle post (506) is provided at the edge of the opposite surface of the two drive disks (504); the two toggle posts (506) are slidably connected to the inner side of the two drive frames (505) respectively. The waste heat utilization mechanism (6) includes a fan (601), which is installed on the front end of the salt spray test chamber (101). The air inlet of the fan (601) is connected to an exhaust pipe (602), and an electromagnetic valve (603) is installed on the exhaust pipe (602). The air outlet of the fan (601) is connected to an air supply pipe (604). Both the exhaust pipe (602) and the air supply pipe (604) penetrate the front side wall of the salt spray test chamber (101). The rear end of the air supply pipe (604) is connected to a heating chamber (605).

2. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 1, characterized in that: The control box (102) is equipped with a control panel (103); the top of the salt spray test chamber (101) is equipped with a H-shaped sealing box (105), and the rear side of the top of the salt spray test chamber (101) is rotatably connected to the test chamber cover (106) via a rotating shaft. The test chamber cover (106) is provided with a partition plate (107) in the middle of its interior; a rectangular opening on the partition plate (104) is provided with a frame-shaped sealing sponge (108), and the frame-shaped sealing sponge (108) is located outside the vertical rotating plate (2).

3. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 1, characterized in that: A spray tower (109) is provided on the rear right side inside the salt spray test chamber (101). An air outlet (1011) is provided on the left side of the rear end face of the salt spray test chamber (101), and the air outlet (1011) is connected to the interior left side of the salt spray test chamber (101). An exhaust hose (1012) is connected to the rear end of the air outlet (1011). A temperature sensor (1013) is installed on the rear right side inside the salt spray test chamber (101).

4. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 1, characterized in that: The lower end of the vertical rotating shaft (201) passes through the partition plate (104), the salt spray test chamber (101), and the base (1); the upper surface of the support plate (204) is uniformly provided with rectangular through holes (205), and each rectangular through hole (205) is fixedly connected with two guide rods (206), and each rectangular through hole (205) is slidably connected with a clamping block (207) through the guide rods (206), and each guide rod (206) is sleeved with a spring; the vertical rotating plate (2) is provided with an installation port (208); the rotating shaft (203) is rotatably connected to the support rod (202), and the rotating shaft (203) is fixedly connected to the support plate (204).

5. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 1, characterized in that: The drying mechanism (3) includes a hot air blower (301), which is installed on the left end face of the salt spray test chamber (101). The outlet of the hot air blower (301) is connected to a flexible air supply hose (302), which penetrates the left side wall of the salt spray test chamber (101). The outlet of the flexible air supply hose (302) is connected to a blower box (303), and the right end face of the blower box (303) is uniformly provided with blower heads. The upper and lower sides of the blower box (303) are fixedly connected to support slide cylinders (304), and each support slide cylinder (304) is slidably connected to a support guide rod fixed inside the salt spray test chamber (101).

6. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 5, characterized in that: The support frame (401) has a guide tube (403) fixedly connected to both the upper and lower sides, and each guide tube (403) has a guide rod fixed inside the salt spray test chamber (101) that is slidably connected.

7. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 6, characterized in that: The reciprocating drive assembly (5) includes a dual-axis motor (501), drive shafts (503), and a drive frame (505). The dual-axis motor (501) is mounted on the upper part of the rear end face of the salt spray test chamber (101), and a transmission shaft (502) is fixedly connected to both ends of the rotating shaft of the dual-axis motor (501). Both transmission shafts (502) are rotatably connected to the rear end face of the salt spray test chamber (101), and a transmission pulley is installed at the opposite ends of the two transmission shafts (502). The number of drive shafts (503) is two, and the two drive shafts (503) are rotatably connected to the rear end face of the salt spray test chamber (101). 503) are respectively rotatably connected to the upper part of the left and right end faces of the salt spray test chamber (101), and the two drive shafts (503) respectively penetrate the left and right side walls of the salt spray test chamber (101). A drive pulley is installed on the opposite end of the two drive shafts (503), and the two drive pulleys are connected to the two transmission pulleys through the belt. There are two drive frames (505), and the left drive frame (505) is fixedly connected between the two support slides (304), and the right drive frame (505) is fixedly connected between the two guide slides (403).

8. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 1, characterized in that: The heating chamber (605) is installed inside the lower side of the salt spray test chamber (101), and the upper surface of the heating chamber (605) is uniformly provided with heat-conducting plates (606). The rear air outlet of the heating chamber (605) is connected to an air outlet hose (607) that penetrates the rear side wall of the salt spray test chamber (101).

9. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 1, characterized in that: The dry / wet switching mechanism (7) includes an electric cylinder (701) and a gear (703). The electric cylinder (701) is installed at the bottom of the base (1), and the telescopic rod of the electric cylinder (701) is fixedly connected to a rack (702). A T-shaped slide bar is provided on the back of the rack (702), and the rack (702) is slidably connected to a slide rail (704) through the T-shaped slide bar. The slide rail (704) is installed at the bottom of the base (1). The gear (703) is fixedly connected to the lower end of the vertical rotating shaft (201), and the gear (703) meshes with the rack (702). When the telescopic rod of the electric cylinder (701) extends to the limit position, the rack (702) rotates clockwise by 180 degrees along with the gear (703), the vertical rotating shaft (201), and the vertical rotating plate (2).

10. The cyclic salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 4, characterized in that: The flipping drive mechanism (8) includes a protective shell A (801), a protective shell B (802), a worm (804), and a worm wheel (805). The protective shell A (801) is installed inside the mounting port (208), and a flipping drive motor (803) is installed inside the protective shell A (801). A drive pulley is installed on the shaft of the flipping drive motor (803). There are two worms (804), and the two worms (804) are rotatably connected to the front sides of the left and right ends of the vertical rotating plate (2). There are two worm wheels (805). The two worm gears (805) are fixedly installed at the front ends of the two rotating shafts (203) on the front side, and the two worm gears (805) are respectively meshed with the two worms (804). Each worm (804) has a driven pulley installed at its lower end, and the two driven pulleys are connected to the driving pulley by belt drive. The number of protective shells B (802) is two, and the two protective shells B (802) are respectively installed on the front sides of the left and right ends of the vertical rotating plate (2), and the two protective shells B (802) are located outside the two worms (804) and the two worm gears (805).

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