Molybdenum disilicide high-temperature oxidation equipment

Abstract

The utility model discloses molybdenum disilicide high-temperature oxidation equipment which comprises a base plate and an electric cabinet, the top of the base plate is fixedly connected with a vertical plate, two clamps are arranged on the right side of the vertical plate, each clamp comprises a clamp frame, and the clamp frame located on the top is fixedly installed with the vertical plate. And a molybdenum disilicide charge bar body is clamped between the two clamps. The position of the lower clamp is adjusted through the adjusting assembly, the distance between the two clamps is made to be suitable for molybdenum disilicide charge bars of various specifications, then the two clamps are operated to clamp the two ends of the molybdenum disilicide charge bars respectively, an electric connecting plate on the electric connecting assembly is operated to make contact with the molybdenum disilicide charge bars, the electric cabinet is started, and the molybdenum disilicide charge bars are clamped through the two clamps. And the voltage is adjusted, so that the molybdenum disilicide charge bar is heated to react with oxygen in the air to generate a silicon dioxide protective film, and the purposes of being suitable for high-temperature oxidation operation of the molybdenum disilicide charge bars of various specifications and high in applicability can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature oxidation equipment, in particular to a molybdenum disilicide high-temperature oxidation equipment. Background Art

[0002] Molybdenum disilicide material has a high melting point, good high-temperature oxidation resistance, good thermal shock resistance, and stable resistance characteristics, making it very suitable for use as a high-temperature electric heating element. Molybdenum disilicide electric heating elements are widely used in glass, electronics, ceramics, metallurgy, and wafer manufacturing due to their fast heating speed and strong oxidation resistance.

[0003] Molybdenum silicide material has good high-temperature oxidation resistance because a dense silicon dioxide protective film is formed on its surface under high temperature conditions. This protective film prevents oxygen from entering and prevents further oxidation of the molybdenum disilicide material. Therefore, during the production and processing of molybdenum disilicide electric heating elements, a dense and uniform silicon dioxide protective film must be formed on the surface of the molybdenum disilicide rod. Therefore, we have designed a molybdenum disilicide high-temperature oxidation equipment that can be used for high-temperature oxidation operations of molybdenum disilicide rods of various specifications and has strong applicability. Utility Model Content

[0004] The purpose of the utility model is to provide a molybdenum disilicide high-temperature oxidation device, which has the advantages of being applicable to high-temperature oxidation operations of molybdenum disilicide rods of various specifications and having strong applicability, so as to solve the above-mentioned background technical problems.

[0005] The technical solution of the utility model for solving the above technical problems is as follows: a molybdenum disilicide high-temperature oxidation equipment, which includes a base plate and an electrical control box, the top of the base plate is fixedly connected to a vertical plate, and two clamps are provided on the right side of the vertical plate. The clamp includes a clamp frame, the clamp frame at the top is fixedly installed with the vertical plate, and the molybdenum disilicide material rod body is clamped between the two clamps, and an adjustment component is provided between the left side of the vertical plate and the clamp frame at the bottom, and an electrical connection component is provided on the opposite sides of the two clamp frames. The electrical connection component includes a fixed seat fixedly connected to the clamp frame, the inner cavity of the fixed seat is slidably connected to a square slide rod, one end of the square slide rod is fixedly connected to a U-shaped sleeve, and a rectangular through groove is opened on one side of the U-shaped sleeve, and the inner cavity of the rectangular through groove is rotatably connected to an electrical connection plate that contacts the surface of the molybdenum disilicide material rod body through a rotating shaft, and the positive and negative poles of the electrical control box are electrically connected to the two electrical connection plates through wires.

[0006] Preferably, the inner cavity of the clamp frame is slidably connected to a clamp plate, the right side of the clamp plate is rotatably connected to a threaded column, the right end of the threaded column passes through the outside of the clamp frame and is threadedly connected to the clamp frame, and the right end of the threaded column is fixedly installed with a handwheel.

[0007] Preferably, the adjustment assembly includes a motor fixedly mounted on the top left side of the vertical plate, the output shaft of the motor is fixedly mounted with a threaded rod, the bottom of the threaded rod is rotatably connected to the base plate, the surface of the threaded rod is threadedly connected with a threaded sleeve, the right side of the threaded sleeve is fixedly connected with a connecting plate, the right side of the connecting plate passes through the vertical plate and is fixedly mounted with a clamp frame located at the bottom.

[0008] Preferably, two symmetrical guide rails are fixedly connected to the left side of the vertical plate, and the threaded sleeve is slidably connected to the surfaces of the two guide rails.

[0009] Preferably, a fixing plate is fixedly connected to the right side of the U-shaped sleeve, a spring is fixedly connected to the front side of the fixing plate, and the front side of the spring is fixedly connected to the electrical connection plate.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model adjusts the position of the lower clamp through the adjustment component so that the spacing between the two clamps is suitable for molybdenum disilicide rods of various specifications. Then, the two clamps are respectively clamped at the two ends of the molybdenum disilicide rod, and the electrical connection plate on the electrical connection component is operated to contact the molybdenum disilicide rod. The electric control box is started and the voltage is adjusted to heat the molybdenum disilicide rod and react with oxygen in the air to form a silicon dioxide protective film. This can achieve the purpose of high-temperature oxidation operation applicable to molybdenum disilicide rods of various specifications and has strong applicability.

[0012] 2. The utility model provides a guide rail so that the threaded sleeve slides on the surface of the guide rail to provide guidance and limit for the movement of the threaded sleeve, thereby avoiding the lateral deviation of the threaded sleeve and improving the stability of the movement of the threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings. These drawings are only illustrative and do not limit the present invention, wherein:

[0014] Figure 1 This is a structural diagram of an embodiment of the utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of a partial structure of an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of a three-dimensional disassembled clamp and an electrical connection component according to an embodiment of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Base plate, 2. Electric control box, 3. Vertical plate, 4. Clamp, 41. Clamp frame, 42. Clamp plate, 43. Threaded column, 44. Handwheel, 5. Molybdenum disilicide rod body, 6. Adjustment component, 61. Motor, 62. Threaded rod, 63. Threaded sleeve, 64. Connecting plate, 65. Guide rail, 7. Electrical connection component, 71. Fixed seat, 72. Square slide rod, 73. U-shaped sleeve, 74. Rectangular through slot, 75. Electrical connection plate, 76. Fixed plate, 77. Spring. DETAILED DESCRIPTION

[0019] Hereinafter, embodiments of the molybdenum disilicide high temperature oxidation device of the present invention will be described with reference to the accompanying drawings.

[0020] Figure 1-3 The present invention shows a high-temperature oxidation device for molybdenum disilicide according to an embodiment of the present invention, which includes a base plate 1 and an electric control box 2. The top of the base plate 1 is fixedly connected to a vertical plate 3. Two clamps 4 are provided on the right side of the vertical plate 3. The clamp 4 includes a clamp frame 41. The clamp frame 41 at the top is fixedly installed with the vertical plate 3. The molybdenum disilicide material rod body 5 is clamped between the two clamps 4. The inner cavity of the clamp frame 41 is slidably connected to a clamp plate 42. The right side of the clamp plate 42 is rotatably connected to a threaded column 43. The right end of the threaded column 43 passes through the outside of the clamp frame 41 and is connected to the clamp. The frame 41 is threadedly connected, and a handwheel 44 is fixedly installed on the right end of the threaded column 43. An adjustment component 6 is provided between the left side of the vertical plate 3 and the clamp frame 41 at the bottom. The adjustment component 6 includes a motor 61 fixedly installed on the top left side of the vertical plate 3. The output shaft of the motor 61 is fixedly installed with a threaded rod 62. The bottom of the threaded rod 62 is rotatably connected to the base plate 1. The surface of the threaded rod 62 is threadedly connected with a threaded sleeve 63. The right side of the threaded sleeve 63 is fixedly connected to a connecting plate 64. The right side of the connecting plate 64 passes through the vertical plate 3 and is connected to the clamp frame 4 at the bottom. 1 is fixedly installed. Two symmetrical guide rails 65 are fixedly connected to the left side of the vertical plate 3. The threaded sleeve 63 is slidably connected to the surface of the two guide rails 65. Through the setting of the guide rails 65, the threaded sleeve 63 slides on the surface of the guide rails 65 to provide guidance and limit for the movement of the threaded sleeve 63, avoiding the lateral deviation of the threaded sleeve 63 and improving the stability of the movement of the threaded sleeve 63. The electrical connection components 7 are provided on the opposite sides of the two clamp frames 41. The electrical connection components 7 include a fixed seat 71 fixedly connected to the clamp frame 41, and the inner of the fixed seat 71 is fixed to the clamp frame 41. The cavity is slidably connected to a square slide rod 72, one end of the square slide rod 72 is fixedly connected to a U-shaped sleeve 73, a rectangular through slot 74 is provided on one side of the U-shaped sleeve 73, the inner cavity of the rectangular through slot 74 is connected to an electrical connection plate 75 in contact with the surface of the molybdenum disilicide material rod body 5 through a rotating shaft, the positive and negative poles of the electric control box 2 are electrically connected to the two electrical connection plates 75 through wires respectively, the right side of the U-shaped sleeve 73 is fixedly connected to a fixed plate 76, the front side of the fixed plate 76 is fixedly connected to a spring 77, and the front side of the spring 77 is fixedly connected to the electrical connection plate 75.

[0021] Working principle: When the present invention is used, the user drives the threaded rod 62 to rotate through the motor 61, and the threaded sleeve 63 drives the connecting plate 64 to move up and down through the thread. The connecting plate 64 drives the bottom clamp 4 and the electrical connection component 7 to move up and down, so that the spacing between the two clamps 4 is suitable for the molybdenum disilicide material rod body 5. Then the molybdenum disilicide material rod body 5 passes through the two clamp frames 41. The user rotates the handwheel 44 to drive the threaded column 43 to rotate. The clamping plate 42 moves toward the molybdenum disilicide material rod body 5 due to the thread and cooperates with the inner wall of the clamp frame 41 to fix the molybdenum disilicide material rod body 5. Then, the electrical connection plate 75 is pressed, causing the electrical connection plate 75 to rotate toward the fixed plate 76 and squeeze the spring. Spring 77, then pushes the square slide bar 72 to slide in the inner cavity of the fixed seat 71, so that the U-shaped sleeve 73 is sleeved on the surface of the molybdenum disilicide material rod body 5, and then loosens the electrical connection plate 75. The elastic force of the spring 77 makes the electrical connection plate 75 contact with the molybdenum disilicide material rod body 5, opens the electrical control box 2, and adjusts the voltage from small to large until the temperature of the molybdenum disilicide material rod reaches 1500-1700℃. The high temperature stage is maintained for 10-30 minutes to generate a silicon dioxide protective film. During this period, the adjustment component 6 makes the bottom clamp 4 move downward, straightening the material rod under high temperature conditions, and the clamping centers of the positive and negative electrodes are on a line, which can be vertically or horizontally in a straight line to ensure the straightness of the oxidized material rod.

[0022] To sum up: the molybdenum disilicide high-temperature oxidation equipment adjusts the position of the lower clamp 4 through the adjustment component 6, so that the spacing between the two clamps 4 is suitable for molybdenum disilicide material rods of various specifications, and then operates the two clamps 4 to clamp the two ends of the molybdenum disilicide material rod respectively, and operates the electrical connection plate 75 on the electrical connection component 7 to contact the molybdenum disilicide material rod, starts the electric control box 2, and adjusts the voltage so that the molybdenum disilicide material rod is heated and reacts with oxygen in the air to generate a silicon dioxide protective film, thereby achieving the purpose of high-temperature oxidation operation that is suitable for molybdenum disilicide material rods of various specifications and having strong applicability.

Claims

1. A high-temperature oxidation device for molybdenum disilicide, characterized in that: The invention comprises a base plate (1) and an electric control box (2), wherein the top of the base plate (1) is fixedly connected to a vertical plate (3), two clamps (4) are arranged on the right side of the vertical plate (3), the clamps (4) include a clamp frame (41), the clamp frame (41) located at the top is fixedly installed with the vertical plate (3), a molybdenum disilicide material rod body (5) is clamped between the two clamps (4), an adjustment component (6) is arranged between the left side of the vertical plate (3) and the clamp frame (41) located at the bottom, and an electrical connection component (7) is arranged on the opposite side of the two clamp frames (41). The electrical connection component (7) includes a fixed seat (71) fixedly connected to the clamp frame (41), the inner cavity of the fixed seat (71) is slidably connected to a square slide rod (72), one end of the square slide rod (72) is fixedly connected to a U-shaped sleeve (73), one side of the U-shaped sleeve (73) is provided with a rectangular through groove (74), the inner cavity of the rectangular through groove (74) is connected to an electrical connection plate (75) in contact with the surface of the molybdenum disilicide material rod body (5) through a rotating shaft, and the positive and negative poles of the electric control box (2) are electrically connected to the two electrical connection plates (75) through wires.

2. The molybdenum disilicide high temperature oxidation equipment according to claim 1, characterized in that: The inner cavity of the clamp frame (41) is slidably connected to a clamp plate (42), and the right side of the clamp plate (42) is rotatably connected to a threaded column (43). The right end of the threaded column (43) passes through the outside of the clamp frame (41) and is threadedly connected to the clamp frame (41), and the right end of the threaded column (43) is fixedly mounted with a hand wheel (44).

3. The molybdenum disilicide high temperature oxidation equipment according to claim 1, characterized in that: The adjustment assembly (6) includes a motor (61) fixedly mounted on the top left side of the vertical plate (3), the output shaft of the motor (61) is fixedly mounted with a threaded rod (62), the bottom of the threaded rod (62) is rotatably connected to the base plate (1), the surface of the threaded rod (62) is threadedly connected with a threaded sleeve (63), the right side of the threaded sleeve (63) is fixedly connected with a connecting plate (64), the right side of the connecting plate (64) passes through the vertical plate (3) and is fixedly mounted with a clamp frame (41) located at the bottom.

4. The molybdenum disilicide high temperature oxidation equipment according to claim 3, characterized in that: Two symmetrical guide rails (65) are fixedly connected to the left side of the vertical plate (3), and the threaded sleeve (63) is slidably connected to the surfaces of the two guide rails (65).

5. The molybdenum disilicide high temperature oxidation equipment according to claim 1, characterized in that: The right side of the U-shaped sleeve (73) is fixedly connected to a fixing plate (76), the front side of the fixing plate (76) is fixedly connected to a spring (77), and the front side of the spring (77) is fixedly connected to the electrical connection plate (75).

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