Circulating salt spray testing equipment for detecting corrosion resistance of nitrided single crystal material

Abstract

The invention provides circulating salt spray testing equipment for detecting corrosion resistance of a nitrided single crystal material, and relates to the field of salt spray testing equipment.The circulating salt spray testing equipment comprises a base, and a salt spray testing box and a control box are installed on the left side and the right side of the upper end face of the base respectively; a partition plate is mounted on the middle side of the interior of the salt spray test box, a rectangular through opening is formed in the partition plate, a vertical rotating shaft is rotationally connected into the rectangular through opening, and a vertical rotating plate is fixedly connected to the exterior of the vertical rotating shaft. According to the salt spray test equipment, the interior of the salt spray test box is divided into two independent test cavities through the partition plate, and a gap between the vertical rotating plate and a rectangular through opening in the partition plate is effectively sealed through the frame-shaped sealing sponge, so that the salt spray test equipment can simultaneously execute dual functions of salt spray and drying, and the test efficiency of the corrosion resistance of a test block is remarkably improved; the problem that in the salt mist and drying testing process of current salt mist testing equipment, the salt mist and drying functions are difficult to execute at the same time, and therefore the testing efficiency is reduced is solved.

Description

Technical Field

[0001] The invention relates to the technical field of salt spray testing equipment, in particular to circulating salt spray testing equipment for detecting the corrosion resistance of nitride single crystal materials. Background Art

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

[0003] At present, when testing the corrosion resistance of nitride single crystal material specimens, in order to accurately simulate their actual application environment, a combined cycle test of salt spray and dry environments is required. However, current salt spray test equipment often only has a salt spray test function. During the drying test, the specimens after the salt spray test need to be moved to other external drying equipment, making the entire test process cumbersome and complicated. Even if some salt spray test equipment has both salt spray and drying functions, the salt spray and drying functions cannot be performed at the same time. The drying test procedure can only be performed after the salt spray test is completed, which greatly reduces the efficiency of the salt spray test equipment in testing the corrosion resistance of the specimens. In addition, during the spraying process of the current salt spray test equipment, due to the top-down sedimentation of the salt spray, a large amount of salt spray components will adhere to the upper surface of the specimen, while the lower surface of the specimen is affected by the obstruction of the specimen itself, resulting in less salt spray adhesion. This difference in the distribution of salt spray adhesion on different surfaces of the specimen not only destroys the uniformity of the test environment, but also causes 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] The invention relates to a cyclic salt spray test device for testing the corrosion resistance of nitride single crystal materials. The invention solves the problem that, during the salt spray and drying test processes of current salt spray test devices, the salt spray and drying functions are difficult to be performed simultaneously, thereby reducing the test efficiency. In addition, the salt spray settles from top to bottom during spraying, resulting in uneven adhesion amounts on the upper and lower surfaces of the test block, destroying the uniformity of the test environment and causing the test results to be difficult to accurately reflect the true corrosion resistance of the nitride single crystal material.

[0005] The first aspect of the present invention provides a cyclic salt spray test equipment for detecting the corrosion resistance of nitride single crystal materials, specifically comprising: a base, a salt spray test box and a control box are respectively installed on the left and right sides of the upper end surface of the base; a partition is installed on the middle side of the interior of the salt spray test box, and a rectangular opening is opened on the partition, and 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; two support rods are fixedly connected to the upper parts of the left and right end surfaces of the vertical rotating plate, and a support plate is rotatably connected between the two adjacent support rods in front and behind through a rotating shaft; the lower end of the vertical rotating shaft is located at the bottom of the base and a dry-wet switching mechanism is provided; 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 box, and a reciprocating drive assembly is installed on the salt spray test box; a waste heat utilization mechanism is installed on the front side of the salt spray test box; and a flipping drive mechanism is provided on the vertical rotating plate.

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

[0007] Furthermore, a spray tower is provided at the rear right side of the interior of the salt spray test chamber, an air outlet is provided on the left side of the rear end face of the salt spray test chamber, and the air outlet is communicated with the interior of the left side of the salt spray test chamber, and an exhaust hose is connected to the rear end of the air outlet; a temperature sensor is installed on the rear side of the right side of the interior of 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 is uniformly provided with a rectangular through-hole, and two guide rods are fixedly connected to the inside of each rectangular through-hole, and a clamping block is slidably connected to the inside of each rectangular through-hole through the guide rod, and a spring is sleeved on the outside of each guide rod; an installation through-hole 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, and the air outlet of the hot air blower is connected to an air supply hose, which passes through the left side wall of the salt spray test chamber, and the air outlet end of the air supply hose is connected to a blowing box, and the right end face of the blowing box is evenly provided with a blowing head, and the upper and lower sides of the blowing box are fixedly connected to support slides, and each support slide is slidably connected to a support guide rod fixed inside the salt spray test chamber.

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

[0011] Furthermore, the reciprocating drive assembly includes a dual-axis motor, a drive shaft and a driving frame, the dual-axis motor is installed on the upper rear end surface of the salt spray test chamber, and the left and right ends of the rotating shaft of the dual-axis motor are fixedly connected to a transmission shaft, the two transmission shafts are rotatably connected to the rear end surface of the salt spray test chamber, and a transmission pulley is installed at the opposite ends of the two transmission shafts; the number of the driving shafts is two, and the two driving shafts are rotatably connected to the upper parts of the left and right end surfaces of the salt spray test chamber respectively, and the two driving shafts pass through the left and right side walls of the salt spray test chamber respectively, a driving pulley is installed at the opposite ends of the two driving shafts, and the two driving pulleys are connected to the two transmission pulleys through belts, a driving disc is installed at the opposite ends of the two driving shafts, and a toggle column is provided at the edges of the opposite surfaces of the two driving discs; the number of the driving frames is two, and the left driving frame is fixedly connected between the two supporting slide cylinders, and the right driving frame is fixedly connected between the two guide slide cylinders; the two toggle columns are respectively slidably connected to the inner sides of the two driving frames.

[0012] Furthermore, the waste heat utilization mechanism includes a fan, which is installed on the front end face of the salt spray test chamber, and the air suction port of the fan is connected to an exhaust pipe, and an electromagnetic valve is installed on the exhaust pipe. The air outlet of the fan is connected to an air supply pipe, and the exhaust pipe and the air supply pipe both pass through the front side wall of the salt spray test chamber. The rear end of the air supply pipe is connected to a heating box body, and the heating box body is installed on the lower side of the interior of the salt spray test chamber, and the upper end face of the heating box body is evenly provided with a heat conducting plate, and the rear end air outlet of the heating box body is connected to an air outlet hose that passes through 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 is provided on the back of the rack, and the rack is slidably connected to a slide rail through the T-shaped slide. 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 is engaged with the rack. When the telescopic rod of the electric cylinder is extended to the extreme position, the rack rotates clockwise one hundred and eighty degrees with the gear, the vertical rotating shaft and the vertical rotating plate.

[0014] Furthermore, the flipping drive mechanism includes a protective shell A, a protective shell B, a worm and a worm wheel, the protective shell A is installed inside the installation port, and a flipping drive motor is installed inside the protective shell A, and a driving pulley is installed on the rotating shaft of the flipping drive motor; the number of the worms is two, and the two worms are respectively rotatably connected to the front sides of the left and right ends of the vertical rotating plate, the number of the worm wheels is two, and the two worm wheels are respectively fixedly installed on the front ends of the two front rotating shafts, and the two worm wheels are respectively engaged with the two worms, and a driven pulley is installed at the lower end of each worm, and the two driven pulleys are connected to the driving pulley through a belt drive, the number of the protective shells B is two, and the two protective shells B are respectively installed on the front sides of the left and right ends of the vertical rotating plate, and the two protective shells B are respectively located outside the two worms and the two worm wheels.

[0015] The present invention provides a circulating salt spray test device for detecting the corrosion resistance of nitride single crystal materials, which has the following beneficial effects: First, in the present 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, so that the salt spray test equipment can simultaneously perform the dual functions of salt spray and drying, significantly improving the testing efficiency of the corrosion resistance of the test block. Moreover, 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. Therefore, when the test blocks are adjusted from salt spray testing to drying testing, there is no need to transport the test blocks after the salt spray test to other external drying equipment, which greatly simplifies the testing process and enhances the convenience and consistency of equipment operation.

[0016] Second, the present invention provides a flip drive mechanism, so that during the test, the flip drive motor can be started, and the flip drive motor drives two worms, two worm wheels, two front rotating shafts, two support plates and the test block clamped on the support plates to perform flipping motion. By flipping the test block, the salt mist settling from top to bottom is more evenly distributed when adhering to the upper and lower surfaces and other surfaces of the test block, thereby preventing deviations in the test results. This can more accurately reflect the true corrosion resistance of the nitride single crystal material, and provide a scientific and accurate evaluation basis for the research and development and quality control of the nitride single crystal material.

[0017] Third, in the present invention, through the setting of the reciprocating drive component, the dual-axis motor can be started during the test, and the dual-axis motor drives the two transmission shafts, two drive shafts and two drive discs to rotate synchronously, and then the drive disc drives the two toggle columns to rotate. At this time, the two driving frames will respectively drive the blowing box and the salt mist blowing mechanism to move back and forth, so that the hot air and salt mist form a dynamic coverage area, effectively avoiding the local oversaturation or undersaturation of the test block, ensuring that the hot air and salt mist contact the test block surface at a uniform speed and concentration, and greatly improving the test block drying and salt mist test effects.

[0018] Fourth, through the setting of the waste heat utilization mechanism in the present invention, during the test process, the solenoid valve can be opened, and then the fan can be started. Then, the high-temperature air inside the test cavity on the left side of the salt spray test chamber is transported to the air supply pipe and the inside of the heating box through the exhaust pipe, and the heating box and the heat conducting plate are heated, thereby realizing precise control of the air temperature inside the test cavity on the right side of the salt spray test chamber. As a result, the salt spray test equipment does not need to be additionally equipped with hot air equipment, effectively improving the thermal energy utilization rate, ensuring the temperature requirements of the salt spray test environment, and significantly reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings of the present invention will be briefly introduced below.

[0020] In the attached figure: Figure 1 A structural diagram showing the overall structure of the present application; Figure 2 A schematic diagram showing the structure of the present application from a rear perspective is shown; Figure 3 A schematic diagram showing the structure of the present application from a bottom perspective is shown; Figure 4 The schematic diagram shows the structure of the overall structure of the present application after being split; Figure 5 A schematic diagram of a partial cross-section of the salt spray test chamber of the present application is shown; Figure 6 A schematic diagram of the structure of the partition plate and the vertical rotating plate of the present application after being separated is shown; Figure 7 A schematic diagram of a partial cross-section of the protective shell A and the protective shell B of the present application is shown; Figure 8 Shows a schematic structural diagram of the vertical rotating plate of the present application; Figure 9 A schematic structural diagram of the support plate, rectangular through-hole, guide rod and clamping block of the present application is shown; Figure 10 A schematic diagram of a partial cross-section of the protective shell A of the present application is shown; Figure 11 The structure diagram of the drying mechanism, salt mist blowing mechanism and reciprocating drive assembly of the present application is shown; Figure 12 Shows a schematic structural diagram of the reciprocating drive assembly of the present application; Figure 13 The structure diagram of the salt spray test chamber and the waste heat utilization mechanism of the present application is shown; Figure 14 The figure shows a schematic structural diagram of the flip drive mechanism of the present application.

[0021] Reference Signs List 1. Base; 101. Salt spray test chamber; 102. Control box; 103. Control panel; 104. Partition; 105. Japanese-shaped sealing box; 106. Test chamber cover; 107. Divider; 108. Frame-shaped sealing sponge; 109. Spray tower; 1011. Air outlet; 1012. Exhaust hose; 1013. Temperature sensor; 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 opening; 3. Drying mechanism; 301. Hot air blower; 302. Air hose; 303. Blowing box; 304. Support slide; 4. Salt mist blowing mechanism; 401. Support frame; 402. Salt mist resistant fan; 403. Guide slide; 5. Reciprocating drive assembly; 501. Dual-axis motor; 502. Transmission shaft; 503. Drive shaft; 504. Drive disc; 505. Drive frame; 506. Toggle column; 6. Waste heat utilization mechanism; 601. Fan; 602. Exhaust pipe; 603. Solenoid valve; 604. Air supply pipe; 605. Heating box; 606. Heat conducting sheet; 607. Air outlet hose; 7. Dry-wet switching mechanism; 701. Electric cylinder; 702. Rack; 703. Gear; 704. Slide rail; 8. Flipping drive mechanism; 801. Protective shell A; 802. Protective shell B; 803. Flipping drive motor; 804. Worm; 805. Worm wheel. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 14 : The present invention proposes a cyclic salt spray test device for detecting the corrosion resistance of nitride single crystal materials, comprising: a base 1, a salt spray test chamber 101 and a control box 102 are respectively installed on the left and right sides of the upper end surface of the base 1; a partition 104 is installed on the middle side of the salt spray test chamber 101, so that two test cavities are formed inside the salt spray test chamber 101, and a rectangular opening is opened on the partition 104, and a vertical rotating shaft 201 is rotatably connected in 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 parts of the left and right end surfaces of the vertical rotating plate 2, and the two adjacent support rods 202 are connected by a rotating shaft. The dynamic shaft 203 is rotatably connected to the support plate 204; the lower end of the vertical rotating shaft 201 is located at the bottom of the base 1 and is provided with a dry-wet switching mechanism 7; the left and right sides of the salt spray test chamber 101 are respectively provided with a drying mechanism 3 and a salt spray blowing mechanism 4, and the salt spray test chamber 101 is installed with a reciprocating drive assembly 5; the front side of the salt spray test chamber 101 is installed with a waste heat utilization mechanism 6; the vertical rotating plate 2 is provided with a flipping drive mechanism 8. Through the setting of the flipping drive mechanism 8, the test block can eventually be flipped, so that the salt spray settling from top to bottom is more evenly adhered to the upper and lower surfaces and other surfaces of the test block, thereby avoiding deviations in the test results.

[0024] A control panel 103 is installed on the control box 102; a Japanese-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 through a rotating shaft, and a partition plate 107 is provided on the middle side of the inside of the test chamber cover 106; a frame-shaped sealing sponge 108 is provided inside the rectangular opening opened on the partition 104, and the frame-shaped sealing sponge 108 is located outside the vertical rotating plate 2, and the frame-shaped sealing sponge 108 is used to seal the gap between the vertical rotating plate 2 and the rectangular opening opened on the partition 104.

[0025] A spray tower 109 is provided at the rear right side of the salt spray test chamber 101. The spray tower 109 is a mature technology. The principle of the spray tower 109 spraying salt spray is not described here. 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 communicated with the interior of the left side of the salt spray test chamber 101, and an exhaust hose 1012 is connected to the rear end of the air outlet 1011; a temperature sensor 1013 is installed on the rear side of the right side inside the salt spray test chamber 101, and the temperature sensor 1013 is set to monitor the internal temperature of a test cavity on the right side of the salt spray test chamber 101 in real time.

[0026] The lower end of the vertical rotating shaft 201 passes through the partition 104, the salt spray test chamber 101 and the base 1; the upper end surface of the support plate 204 is uniformly provided with rectangular through-holes 205, and two guide rods 206 are fixedly connected to the inside of each rectangular through-hole 205, and a clamping block 207 is slidably connected to the inside of each rectangular through-hole 205 through the guide rod 206. The clamping block 207 is used to clamp the nitride single crystal material test block, and a spring is sleeved on the outside of each guide rod 206 to ensure that the clamping block 207 has a better clamping force; an installation opening 208 is provided on the vertical rotating plate 2; 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.

[0027] 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, and the air outlet of the hot air blower 301 is connected to an air supply hose 302, which passes through the left side wall of the salt spray test chamber 101. The air outlet end of the air supply hose 302 is connected to a blowing box 303, and the right end face of the blowing box 303 is evenly provided with a blowing head. The upper and lower sides of the blowing box 303 are fixedly connected to support slides 304, and each support slide 304 is slidably connected to a support guide rod fixed inside the salt spray test chamber 101; through the setting of the drying mechanism 3, it is used to perform drying tests on nitride single crystal material test blocks.

[0028] The salt mist blowing mechanism 4 includes a support frame 401, an anti-salt mist fan 402 is installed inside the support frame 401, and a guide slide 403 is fixedly connected to the upper and lower sides of the support frame 401, and each guide slide 403 is slidably connected to a guide slide rod fixed inside the salt mist test chamber 101; through the setting of the salt mist blowing mechanism 4, the anti-salt mist fan 402 can be started during the process of spraying salt mist from the spray tower 109, so that the salt mist can be guided and blown to the surface of the test block, thereby improving the salt mist test effect.

[0029] The reciprocating drive assembly 5 includes a dual-axis motor 501, a drive shaft 503 and a driving frame 505. The dual-axis motor 501 is installed on the upper rear end surface of the salt spray test chamber 101, and the left and right ends of the rotating shaft of the dual-axis motor 501 are fixedly connected to a transmission shaft 502. The two transmission shafts 502 are rotatably connected to the rear end surface 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 the drive shafts 503 is two, and the two drive shafts 503 are rotatably connected to the upper left and right end surfaces of the salt spray test chamber 101, and the two drive shafts 503 pass through the left and right side walls of the salt spray test chamber 101 respectively, and a drive pulley is installed at the opposite ends of the two drive shafts 503, and the two drive pulleys are connected to the two transmission pulleys through belts. Transmission connection, a driving disc 504 is installed at the opposite end of the two driving shafts 503, and a toggle column 506 is provided at the edge of the opposite surface of the two driving discs 504; the number of the driving frames 505 is two, and the left driving frame 505 is fixedly connected between the two supporting slides 304, and the right driving frame 505 is fixedly connected between the two guide slides 403; the two toggle columns 506 are respectively slidably connected to the inner sides of the two driving frames 505; through the setting of the reciprocating drive component 5, it is used to move the blowing box 303 and the salt mist blowing mechanism 4 back and forth, so that the hot air and salt mist form a dynamic coverage area, effectively avoiding the local oversaturation or undersaturation of the test block, and ensuring that the hot air and salt mist contact the test block surface with uniform speed and concentration.

[0030] 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 the rack 702. A T-shaped slide is provided on the back of the rack 702, and the rack 702 is slidably connected to the slide rail 704 through the T-shaped slide. 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 is engaged with the rack 702. When the telescopic rod of the electric cylinder 701 is extended to the extreme position, the rack 702 rotates one hundred and eighty degrees clockwise with the gear 703, the vertical rotating shaft 201 and the vertical rotating plate 2. Through the setting of the electric cylinder 701, the maximum unidirectional rotation angle of the vertical rotating plate 2 during rotation switching is one hundred and eighty degrees, thereby avoiding the entanglement of the cable connected to the flip drive motor 803.

[0031] The flip drive mechanism 8 includes a protective shell A801, a protective shell B802, a worm 804 and a worm wheel 805. The protective shell A801 ​​is installed inside the installation port 208, and a flip drive motor 803 is installed inside the protective shell A801, and a driving pulley is installed on the rotating shaft of the flip drive motor 803; there are two worms 804, and the two worms 804 are respectively rotatably connected to the front sides of the left and right ends of the vertical rotating plate 2, and there are two worm wheels 805, and the two worm wheels 805 are respectively fixedly installed at the front ends of the two rotating shafts 203 on the front side, and the two worm wheels 80 5 are respectively engaged with the two worms 804, and a driven pulley is installed at the lower end of each worm 804, and the two driven pulleys are connected to the driving pulley through a belt transmission. There are two protective shells B802, and the two protective shells B802 are respectively installed on the left and right end front sides of the vertical rotating plate 2, and the two protective shells B802 are respectively located outside the two worms 804 and the two worm wheels 805; by setting the turning drive mechanism 8, the test block can be turned over, so that the salt mist settling from top to bottom can be more evenly adhered to the upper and lower surfaces and other surfaces of the test block.

[0032] Example 2, based on Example 1, 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, and the air suction port of the fan 601 is connected to an exhaust pipe 602, and the exhaust pipe 602 is installed with a solenoid valve 603. The air outlet of the fan 601 is connected to an air supply pipe 604, and the exhaust pipe 602 and the air supply pipe 604 both pass through 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 box 605, which is installed on the lower side of the interior of the salt spray test chamber 101, and the upper end surface of the heating box 605 is uniformly provided with a heat conducting sheet 606, and the rear end air outlet of the heating box 605 is connected to an air outlet hose 607 that passes through the rear side wall of the salt spray test chamber 101; By setting up the waste heat utilization mechanism 6, during the test process, the solenoid valve 603 can be opened through the control panel 103, and then the fan 601 can be started. At this time, negative pressure is generated inside the exhaust pipe 602, and then the high-temperature air inside the test cavity on the left side of the salt spray test chamber 101 is transported to the air supply pipe 604 and the heating box 605 through the exhaust pipe 602, heating the heating box 605 and the heat conducting plate 606, and finally heating the air temperature inside the test cavity on the right side of the salt spray test chamber 101. As a result, the salt spray test equipment does not need to be equipped with a separate hot air device to heat the test cavity on the right side of the salt spray test chamber 101, thereby effectively improving the utilization rate of thermal energy and being more energy-efficient.

[0033] The working principle of the present invention is as follows: when in use, the nitride single crystal material test block to be tested (hereinafter referred to as the test block) is first clamped into the rectangular through-hole 205. Specifically, during clamping, the clamping block 207 is slid toward the direction of the external spring of the guide rod 206 to compress the external spring of the guide rod 206. Then, the test block is placed into the rectangular through-hole 205, and 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. After the test block is clamped, clean water is injected into the Japanese-shaped sealing box 105, and then the test box cover 106 is closed, so that the bottom of the test box cover 106 and the lower side of the partition plate 107 are both in the clean water inside the Japanese-shaped sealing box 105. At this time, the two test cavities on the salt spray test box 101 are sealed by the test box cover 106 and the partition plate 107. Then the salt spray test box 101 is started to spray salt mist through the spray tower 109. At this time, a test cavity on the right side of the salt spray test box 101 is full of salt mist, and the salt mist will settle on the upper surface of the test block from top to bottom. 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 the hot air is transported to the inside of the blowing box 303 through the air supply hose 302, and then the hot air is blown to the test block in a test cavity on the left side of the salt spray test box 101 through the blowing head on the right side of the blowing box 303. After the test work of the test block in each test chamber is completed, the telescopic rod of the electric cylinder 701 is controlled by the control panel 103 to extend and move, and the rack 702 moves linearly to the right. When the telescopic rod of the electric cylinder 701 is extended to the limit position, the rack 702 rotates clockwise 180 degrees with the gear 703, the vertical rotating shaft 201 and the vertical rotating plate 2, so that the positions of the test blocks on the left and right sides of the vertical rotating plate 2 are quickly switched. Then, the salt spray test is performed on the test block after salt spray through the blow box 303, and the dried test block is sprayed with salt spray through the spray tower 109 for salt spray test. The test cycle is completed. During the drying test, the salt spray test equipment does not need to transport the test block after the salt spray test to other external drying equipment, which makes the entire test process simpler. In addition, the salt spray test equipment can perform the dual functions of salt spray and drying at the same time, thereby greatly improving the test efficiency of the corrosion resistance of the test block.

[0034] 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, the flip drive motor 803 drives the two worms 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 perform a flipping motion. By flipping the test block, the salt mist settling from top to bottom is more evenly adhered to the upper and lower surfaces and other surfaces of the test block, thereby preventing deviations in the test results and more accurately reflecting the true corrosion resistance of the nitride single crystal material. After the dual-axis motor 501 is started, the dual-axis motor 501 drives the two transmission shafts 502, the two drive shafts 503 and the two drive discs 504 to rotate synchronously, and then the drive discs 504 drive the two toggle posts 506 to rotate. At this time, the two driving frames 505 will respectively drive the blowing box 303 and the salt mist blowing mechanism 4 to move back and forth, so that the blown hot air and the blown salt mist can contact the surface of the test block more evenly, further improving the drying of the test block and the salt spray test effect.

[0035] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0036] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0037] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person 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 based on the scope of protection of the claims.

Claims

1. Cyclic salt spray test equipment for corrosion resistance testing of nitride single crystal materials, including: A base (1), wherein a salt spray test chamber (101) and a control box (102) are respectively installed on the left and right sides of the upper end surface of the base (1); the salt spray test chamber (101) is provided with a partition (104) on the middle side thereof, and a rectangular opening is provided on the partition (104), and a vertical rotating shaft (201) is rotatably connected in 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 parts of the left and right end surfaces of the vertical rotating plate (2), and the two adjacent support rods are fixedly connected to the front and rear end surfaces. 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 provided on the left and right sides of the interior of 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); and a flipping drive mechanism (8) is provided on the vertical rotating plate (2).

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

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

4. The cyclic salt spray test 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 (104), the salt spray test chamber (101) and the base (1); the upper end surface of the support plate (204) is uniformly provided with rectangular through-holes (205), and two guide rods (206) are fixedly connected inside each rectangular through-hole (205), and a clamping block (207) is slidably connected inside each rectangular through-hole (205) through the guide rods (206), and a spring is sleeved on the outside of each guide rod (206); a mounting opening (208) is provided on the vertical rotating plate (2); 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 test 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), and the air outlet of the hot air blower (301) is connected to an air supply hose (302), which passes through the left side wall of the salt spray test chamber (101), and the air outlet end of the air supply hose (302) is connected to a blow box (303), and the right end face of the blow box (303) is evenly provided with a blow head, and the upper and lower sides of the blow box (303) are fixedly connected to support slides (304), and each support slide (304) is slidably connected to a support guide rod fixed inside the salt spray test chamber (101).

6. The cyclic salt spray test equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 5, characterized in that: The salt mist blowing mechanism (4) comprises a support frame (401), an anti-salt mist fan (402) is installed inside the support frame (401), a guide slide (403) is fixedly connected to the upper and lower sides of the support frame (401), and each guide slide (403) is slidably connected to a guide slide rod fixed inside the salt mist test box (101).

7. The cyclic salt spray test equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 6, characterized in that: The reciprocating drive assembly (5) comprises a dual-axis motor (501), a drive shaft (503) and a driving frame (505), wherein the dual-axis motor (501) is mounted on the upper rear end surface of the salt spray test chamber (101), and the left and right ends of the rotating shaft of the dual-axis motor (501) are fixedly connected to a transmission shaft (502), and the two transmission shafts (502) are both rotatably connected to the rear end surface 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 the drive shafts (503) is two, and the two drive shafts (503) are respectively rotatably connected to the upper left and right end surfaces of the salt spray test chamber (101), and the two drive shafts (503) respectively penetrate the salt spray chamber (101). On the left and right side walls of the test box (101), two drive shafts (503) are each installed with a drive pulley at the opposite ends, and the two drive pulleys are connected to the two transmission pulleys through belts, and a drive disc (504) is installed at the opposite end of the two drive shafts (503), and a toggle column (506) is provided at the edge of the opposite surface of the two drive discs (504); the number of the driving frames (505) is two, and the left driving frame (505) is fixedly connected between the two supporting slides (304), and the right driving frame (505) is fixedly connected between the two guide slides (403); the two toggle columns (506) are respectively slidably connected to the inner sides of the two driving frames (505).

8. The cyclic salt spray test equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 1, characterized in that: The waste heat utilization mechanism (6) includes a fan (601), which is installed on the front end of the salt spray test chamber (101), and the air intake of the fan (601) is connected to an exhaust pipe (602), and the exhaust pipe (602) is installed with a solenoid valve (603), and the air outlet of the fan (601) is connected to an air supply pipe (604), and the exhaust pipe (602) and the air supply pipe (604) both pass through the front side wall of the salt spray test chamber (101), and the rear end of the air supply pipe (604) is connected to a heating box (605), and the heating box (605) is installed on the lower side of the interior of the salt spray test chamber (101), and the upper end surface of the heating box (605) is uniformly provided with a heat conducting plate (606), and the rear end air outlet of the heating box (605) is connected to an air outlet hose (607) that passes through the rear side wall of the salt spray test chamber (101).

9. The cyclic salt spray test 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), wherein the electric cylinder (701) is mounted on 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 is provided on the back of the rack (702), and the rack (702) is slidably connected to a slide rail (704) via the T-shaped slide, and the slide rail (704) is mounted on the bottom of the base (1), and the gear (703) is fixedly connected to the lower end of the vertical rotating shaft (201), and the gear (703) is meshed with the rack (702). When the telescopic rod of the electric cylinder (701) is extended to the limit position, the rack (702) rotates one hundred and eighty degrees clockwise with the gear (703), the vertical rotating shaft (201) and the vertical rotating plate (2).

10. The cyclic salt spray test equipment for detecting the corrosion resistance of nitride single crystal materials according to claim 4, characterized in that: The flip drive mechanism (8) comprises a protective shell A (801), a protective shell B (802), a worm (804) and a worm wheel (805), wherein the protective shell A (801) is installed inside the installation opening (208), and a flip drive motor (803) is installed inside the protective shell A (801), and a driving pulley is installed on the rotating shaft of the flip drive motor (803); the number of the worms (804) is two, and the two worms (804) are respectively rotatably connected to the front sides of the left and right ends of the vertical rotating plate (2), and the number of the worm wheels (805) is two. , and the two worm wheels (805) are respectively fixedly mounted on the front ends of the two front rotating shafts (203), and the two worm wheels (805) are respectively engaged with the two worms (804), and a driven pulley is mounted on the lower end of each worm (804), and the two driven pulleys are connected to the driving pulley through a belt transmission, the number of the protective shells B (802) is two, and the two protective shells B (802) are respectively mounted on the front sides of the left and right ends of the vertical rotating plate (2), and the two protective shells B (802) are respectively located outside the two worms (804) and the two worm wheels (805).

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