Three-section heating silicon-molybdenum rod atmosphere furnace suitable for testing machine

Abstract

The utility model relates to the field of material processing, and discloses a three-section heating silicon molybdenum rod atmosphere furnace suitable for a testing machine, which comprises two groups of furnace outer shells and a furnace inner shell, the middle part of the furnace inner shell is fixedly connected with a middle heat insulation plate, and the top end of the outer wall of the furnace inner shell is fixedly connected with an upper heat insulation plate; an upper silicon molybdenum rod penetrates through the surface of the upper heat insulation plate and is fixedly connected with the surface of the upper heat insulation plate through a U-shaped ring, a middle silicon molybdenum rod penetrates through the surface of the middle heat insulation plate and is fixedly connected with the surface of the middle heat insulation plate through a U-shaped ring, and a lower silicon molybdenum rod penetrates through the surface of the lower heat insulation plate and is fixedly connected with the surface of the lower heat insulation plate through a U-shaped ring. According to the utility model, the three-section heating design enables the temperature distribution in the furnace to be more uniform, and the upper silicon molybdenum rod, the middle silicon molybdenum rod and the lower silicon molybdenum rod respectively heat the top area, the middle area and the bottom area in the furnace, so that a heated object is ensured to be uniformly heated in the whole heating process, and the requirement of the testing machine on accurate temperature control is met.

Description

Technical Field

[0001] This utility model relates to the field of materials processing, and in particular to an atmospheric furnace suitable for three-stage heating of silicon molybdenum rods in a testing machine. Background Technology

[0002] With the continuous production of new materials and the deepening of research in the field of materials in my country, temperature environment simulation devices are widely used in testing machines. Atmospheric furnaces can provide the high-temperature environment required for high-temperature material simulation experiments and are widely used in high-tech fields such as aviation, aerospace, nuclear power generation, missiles and turbine blades.

[0003] However, existing devices have some shortcomings: in mechanical property tests of metallic and non-metallic materials under high-temperature atmospheric conditions, atmospheric furnaces that provide high-temperature environments above 1200℃ for material testing have the drawback of uneven temperature in the environment due to one-stage heating, which cannot meet the requirements of relevant engineering tests. Therefore, a three-stage heating atmospheric furnace for silicon molybdenum rods suitable for testing machines is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an atmospheric furnace for heating silicon molybdenum rods in three stages in a testing machine. It aims to improve the problem that the single-stage heating in the prior art causes uneven temperature in the environment and fails to meet the relevant engineering test requirements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an atmospheric furnace for heating silicon molybdenum rods in a three-stage heating process in a testing machine, comprising a furnace outer shell and a furnace inner shell. The furnace outer shell is provided in two sets, with an upper furnace cover fixedly connected to the top of the outer wall of each set, and a lower furnace cover fixedly connected to the bottom of the outer wall of each set. The upper and lower ends of the furnace inner shell are fixedly connected to furnace insulation plates by screws. A lower insulation plate is fixedly connected to the bottom of the outer wall of the furnace inner shell. A middle insulation plate is fixedly connected to the middle portion of the furnace inner shell. An upper insulation plate is fixedly connected to the top of the outer wall of the furnace inner shell. An upper silicon molybdenum rod is fixedly connected to the surface of the upper insulation plate via a U-shaped ring. A middle silicon molybdenum rod is fixedly connected to the surface of the middle insulation plate via a U-shaped ring. A lower silicon molybdenum rod is fixedly connected to the surface of the lower insulation plate via a U-shaped ring.

[0006] As a further description of the above technical solution:

[0007] A thermocouple mounting base is detachably installed on the surface of the furnace outer shell by screws. An insulating sleeve is detachably installed on the surface of the thermocouple mounting base by screws. A thermocouple is provided on the inner wall of the insulating sleeve. The inner shell of the furnace is located inside the outer shell of the furnace.

[0008] As a further description of the above technical solution:

[0009] Both sets of furnace shells are equipped with door lock handles on their surfaces, and junction boxes are fixedly connected to the surfaces of both sets of furnace shells.

[0010] As a further description of the above technical solution:

[0011] A junction box is provided on the outer surface of the furnace shell.

[0012] As a further description of the above technical solution:

[0013] Both sets of furnace shells have hinges fixedly connected to their outer walls, and hinge shafts are rotatably connected to the center of both sets of hinges.

[0014] As a further description of the above technical solution:

[0015] The two sets of furnace shells are hinged together by hinges.

[0016] As a further description of the above technical solution:

[0017] A U-shaped handle is fixedly connected to the surface of the furnace shell.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the three-stage heating design makes the temperature distribution inside the furnace more uniform. The upper silicon molybdenum rod, the middle silicon molybdenum rod, and the lower silicon molybdenum rod heat the top, middle, and bottom areas of the furnace, respectively, ensuring that the heated object is heated evenly throughout the heating process, thus meeting the testing machine's requirements for precise temperature control.

[0020] 2. In this utility model, the design of the thermocouple mounting base and insulating sleeve ensures that the thermocouple can accurately measure the temperature inside the furnace and accurately transmit the measurement data. The thermocouple mounting base is made of aluminum alloy and has undergone anodizing treatment, which has good corrosion resistance and stability, and can firmly fix the thermocouple to prevent it from shifting during operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall planar structure of an atmospheric furnace for heating silicon molybdenum rods in a testing machine, as proposed in this utility model.

[0022] Figure 2 This invention presents a schematic diagram of the lower silicon molybdenum rod planar structure for a three-stage heating silicon molybdenum rod atmospheric furnace in a testing machine.

[0023] Legend:

[0024] 1. Upper furnace cover; 2. Hinge; 3. Hinge shaft; 4. Thermocouple mounting bracket; 5. Insulating sleeve; 6. Thermocouple; 7. Door lock handle; 8. Furnace outer shell; 9. U-shaped handle; 10. Junction box; 11. Lower furnace cover; 12. Furnace inner shell; 13. Furnace inner heat insulation plate; 14. Upper heat insulation plate; 15. Middle heat insulation plate; 16. Lower heat insulation plate; 17. Upper silicon molybdenum rod; 18. Middle silicon molybdenum rod; 19. Lower silicon molybdenum rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 - Figure 2 The present invention provides an embodiment of an atmospheric furnace for heating silicon molybdenum rods in a three-stage heating test machine, comprising a furnace outer shell 8 and a furnace inner shell 12. A U-shaped handle 9 is fixedly connected to the surface of the furnace outer shell 8. The furnace inner shell 12 is located inside the furnace outer shell 8. Door lock handles 7 are provided on the surfaces of the two sets of furnace outer shells 8. Hinges 2 are fixedly connected to the outer walls of the two sets of furnace outer shells 8. The two sets of furnace outer shells 8 are hinged to each other through the hinges 2. A hinge shaft 3 is rotatably connected at the center of the two sets of hinges 2. A junction box 10 is fixedly connected to the surfaces of the two sets of furnace outer shells 8.

[0027] Reference Figure 1 and Figure 2The furnace outer shell 8 has two sets, with an upper furnace cover 1 fixedly connected to the top of the outer wall of each set, and a lower furnace cover 11 fixedly connected to the bottom of the outer wall of each set. The upper and lower ends of the furnace inner shell 12 are fixedly connected with furnace insulation plates 13 by screws. The furnace insulation plates 13 are made of high-quality ceramic fiber material with extremely low thermal conductivity, effectively preventing heat transfer to the outside of the furnace and reducing heat loss. A lower insulation plate 16 is fixedly connected to the bottom of the outer wall of the furnace inner shell 12. The lower insulation plate 16 is made of the same material as the furnace insulation plate 13 and plays a crucial role in insulation at the bottom of the furnace, ensuring that heat is concentrated inside the furnace and improving heat absorption. In terms of heating effect, a middle heat insulation plate 15 is fixedly connected to the middle part of the inner shell 12 of the furnace. The middle heat insulation plate 15 further enhances the heat insulation performance of the furnace and rationally divides the furnace space according to different temperature zones to meet the needs of three-stage heating. The middle part of the inner shell 12 is fixedly connected to the middle heat insulation plate 15, and the top of the outer wall of the inner shell 12 is fixedly connected to the upper heat insulation plate 14. The surface of the upper heat insulation plate 14 is penetrated and fixedly connected to the upper silicon molybdenum rod 17 through a U-shaped ring. The upper silicon molybdenum rod 17 is the core heating element of the top heating area of ​​the atmospheric furnace. It is made of high-purity silicon molybdenum alloy and has the advantages of high temperature resistance, oxidation resistance and high heating efficiency. During operation, the upper silicon molybdenum rod 17 can heat up quickly, efficiently converting electrical energy into heat energy, providing stable heat to the top area of ​​the furnace. The surface of the middle heat insulation plate 15 is penetrated and fixedly connected to the middle silicon molybdenum rod 18 through a U-shaped ring. The surface of the lower heat insulation plate 16 is penetrated and fixedly connected to the lower silicon molybdenum rod 19 through a U-shaped ring. The lower silicon molybdenum rod 19 is responsible for heating the bottom area of ​​the furnace, ensuring sufficient heat supply to the bottom of the furnace and ensuring that the heated object is heated evenly throughout the heating process.

[0028] Reference Figure 1 A junction box 10 is provided on the outer surface of the furnace shell 8. A thermocouple mounting base 4 is detachably installed on the surface of the furnace shell 8 by screws. The thermocouple mounting base 4 is made of aluminum alloy and has been anodized, which has good corrosion resistance and stability. It can firmly fix the thermocouple 6 and ensure that it is accurately positioned and does not shift during operation. An insulating sleeve 5 is detachably installed on the surface of the thermocouple mounting base 4 by screws. The insulating sleeve 5 is made of high temperature resistant ceramic material with excellent insulation performance. It can effectively isolate the electrical connection between the thermocouple 6 and the outside world, prevent leakage, and protect the thermocouple 6 from the interference of the external environment to ensure the accuracy of the measurement data. The thermocouple 6 is installed on the inner wall of the insulating sleeve 5.

[0029] Working Principle: When the atmospheric furnace is operating, the upper silicon molybdenum rod 17, the middle silicon molybdenum rod 18, and the lower silicon molybdenum rod 19 are responsible for heating the top, middle, and bottom areas of the furnace, respectively. The upper silicon molybdenum rod 17 heats up rapidly during operation, efficiently converting electrical energy into heat energy to provide stable heat to the top area of ​​the furnace. The middle silicon molybdenum rod 18 heats the middle area of ​​the furnace, and the lower silicon molybdenum rod 19 ensures sufficient heat supply to the bottom area of ​​the furnace. Through these three heating stages, the object being heated is heated evenly throughout the entire heating process, meeting the requirements of the testing machine. In the heating process of the atmospheric furnace, the furnace insulation plate 13, the lower insulation plate 16, and the middle insulation plate 15 play a key role in heat insulation. The furnace insulation plate 13 effectively prevents heat from being transferred to the outside of the furnace body, reducing heat loss. The lower insulation plate 16 at the bottom of the furnace body ensures that heat is concentrated inside the furnace, improving the heating effect. The middle insulation plate 15 not only strengthens the heat insulation performance inside the furnace, but also rationally divides the furnace space according to different temperature zones. In line with the three-stage heating requirements, the temperature distribution inside the furnace is more reasonable, ensuring the stability and efficiency of heating.

[0030] When the atmospheric furnace is working, thermocouple 6 is used to measure the temperature inside the furnace. The thermocouple mounting base 4 can firmly fix thermocouple 6, ensuring that its position is accurate and does not shift during operation. The insulating sleeve 5 effectively isolates the electrical connection between thermocouple 6 and the outside world, preventing leakage. At the same time, it protects thermocouple 6 from interference from the external environment, ensuring that thermocouple 6 can accurately measure the temperature inside the furnace and accurately transmit the measurement data so that operators can monitor and adjust the temperature inside the furnace in real time, ensuring the safety and stability of the heating process.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A furnace for three-stage heating of silicon-molybdenum rods in a testing machine, comprising an outer furnace shell (8) and an inner furnace shell (12), characterized in that: The outer shell (8) is provided with two groups, and the top of the outer wall of the two groups of the outer shell (8) is fixedly connected with an upper furnace cover (1), and the bottom of the outer wall of the two groups of the outer shell (8) is fixedly connected with a lower furnace cover (11), the upper and lower ends of the inner shell (12) are fixedly connected with an inner heat insulation plate (13) through screws, the bottom of the outer wall of the inner shell (12) is fixedly connected with a lower heat insulation plate (16), the middle part of the inner shell (12) is fixedly connected with a middle heat insulation plate (15), the top of the outer wall of the inner shell (12) is fixedly connected with an upper heat insulation plate (14), the surface of the upper heat insulation plate (14) is fixedly connected with an upper silicon molybdenum rod (17) through a U-shaped ring, the surface of the middle heat insulation plate (15) is fixedly connected with a middle silicon molybdenum rod (18) through a U-shaped ring, and the surface of the lower heat insulation plate (16) is fixedly connected with a lower silicon molybdenum rod (19) through a U-shaped ring.

2. A three-zone atmospheric furnace for heating silicon-molybdenum rods for testing machines according to claim 1, characterized in that: The surface of the outer shell (8) is detachably provided with a thermocouple fixing seat (4) through screws, the surface of the thermocouple fixing seat (4) is detachably provided with an insulating sleeve (5) through screws, the inner wall of the insulating sleeve (5) is provided with a thermocouple (6), and the inner shell (12) is arranged on the inner side of the outer shell (8).

3. A three-zone atmospheric furnace for heating silicon-molybdenum rods for testing machines according to claim 1, characterized in that: The surface of the two groups of the outer shell (8) is provided with a door lock handle (7), and the surface of the two groups of the outer shell (8) is fixedly connected with a junction box (10).

4. The three-stage heating silicon-molybdenum rod atmospheric furnace for testing machine according to claim 1, characterized in that: The outer surface of the outer shell (8) is provided with a junction box (10).

5. The three-stage heating silicon-molybdenum rod atmospheric furnace for testing machine according to claim 1, characterized in that: The outer wall of the two groups of the outer shell (8) is fixedly connected with a folding leaf (2), and the center of the two groups of the folding leaf (2) is rotatably connected with a folding leaf shaft (3).

6. A three-zone atmospheric furnace for heating silicon-molybdenum rods for testing machines according to claim 5, characterized in that: The two groups of the outer shell (8) are hingedly connected with each other through the folding leaf (2).

7. A three-zone atmospheric furnace for heating silicon-molybdenum rods for testing machines according to claim 1, characterized in that: The surface of the outer shell (8) is fixedly connected with a U-shaped handle (9).

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