A high temperature demagnetization apparatus
By designing a rotating door, mounting frame, and placement frame, combined with a high-temperature resistant insulation layer, the problem of natural cooling required in traditional high-temperature demagnetizing equipment is solved, achieving efficient material heat dissipation and a safe high-temperature demagnetizing process.
Patent Information
- Application Number
- CN202521683604.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-08
AI Technical Summary
Traditional high-temperature demagnetizing equipment requires reaching a specific high temperature and then allowing it to cool naturally before the items can be removed, which prolongs the processing time and reduces work efficiency.
A high-temperature demagnetizing device is designed. By adjusting the multi-dimensional angles of the rotating door, mounting frame, and placement frame, the material is exposed, increasing the contact area with air. Combined with the insulation layer of high-temperature resistant ceramic fiber board and composite insulation cotton, heat loss is reduced and heat dissipation efficiency is improved.
It significantly shortens the cooling time of materials after demagnetization, reduces the waiting time for material retrieval, improves batch processing efficiency, and ensures uniform material cooling and operational safety.
Smart Images

Figure CN224682884U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-temperature demagnetization technology, and in particular to a high-temperature demagnetization device. Background Technology
[0002] High-temperature demagnetization is a demagnetization method based on the Curie temperature characteristics of permanent magnet magnetic phase transition. Its core principle is to eliminate residual magnetism by heating the permanent magnet to or above the Curie temperature. In practical applications, the items to be demagnetized are usually placed on a storage rack in a special high-temperature demagnetization furnace and then subjected to high-temperature demagnetization treatment to achieve the demagnetization purpose, meeting the demagnetization needs of many industrial production and scientific research fields.
[0003] Traditional high-temperature demagnetizing furnaces, such as box-type high-temperature demagnetizing furnaces, mainly rely on air heating to carry out demagnetization. The processing temperature must reach a specific high temperature to achieve effective demagnetization. However, after high-temperature treatment, both the items and the demagnetizing furnace itself need to wait for natural cooling. Only after the temperature drops to a suitable level can the items be taken out of the storage rack. This cooling waiting process greatly prolongs the overall processing time, resulting in a significant reduction in work efficiency.
[0004] Therefore, a high-temperature demagnetizing device was designed. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by providing a high-temperature demagnetizing device. It solves the problems of traditional high-temperature demagnetizing devices that rely on heating to demagnetize, require reaching a specific high temperature, and require waiting for natural cooling after high-temperature treatment before the object can be removed, which greatly prolongs the processing time and reduces work efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A high-temperature demagnetizing device includes a high-temperature demagnetizing device body, a door hinged to the inner wall of the high-temperature demagnetizing device body, a mounting frame rotatably installed inside the high-temperature demagnetizing device body, and multiple placement frames for storing materials disposed inside the mounting frame. By rotating the high-temperature demagnetizing device body, the mounting frame, and the placement frames in sequence, the materials located in the placement frames are exposed, thereby accelerating the heat dissipation of the materials.
[0008] Preferably, an insulation layer is fixedly installed on the inner wall of the door. The insulation layer is made of high-temperature resistant ceramic fiber board and filled with composite insulation cotton to reduce heat loss inside the equipment and prevent the external temperature of the door from becoming too high.
[0009] Preferably, a rotating rod is rotatably installed inside the high-temperature demagnetizing device body, and the rotating rod passes through the mounting frame and is fixedly connected to the mounting frame.
[0010] Preferably, a second rotating rod is fixedly installed on the inner wall of the mounting frame. The second rotating rod passes through multiple placement frames and is rotatably connected to the multiple placement frames, which facilitates the adjustment of the material exposure angle.
[0011] Preferably, each of the placement frames is provided with a traction ring distributed on its outer wall. The traction ring is used to connect to an external traction component to drive the placement frame to rotate around the rotating rod.
[0012] Preferably, multiple top blocks are fixedly installed on the inner wall of the mounting frame, and the number of top blocks is the same as the number of placement frames, so that each placement frame can form independent support.
[0013] Preferably, the top of the top block is designed with a slope, and the bottom of one side of the placement frame is provided with an arc-shaped surface. The combination of the slope and the arc-shaped surface can reduce the contact friction between the placement frame and the top block when the frame rotates.
[0014] Preferably, the corresponding top blocks are located at the bottom of the corresponding placement frame, providing support for the placement frame and ensuring that the placement frame does not shift due to gravity when carrying materials.
[0015] Preferably, the door is designed in a bent shape, so that when the door is closed with the body of the high-temperature demagnetizing equipment, it fits perfectly to form a whole, which can enhance the structural integrity of the equipment after it is closed and reduce heat leakage caused by corner gaps.
[0016] Preferably, a high-temperature resistant sealing strip is provided on the side of the high-temperature demagnetizing device body that contacts the insulation layer, which can further improve the sealing performance of the device and enhance the heat insulation effect in conjunction with the insulation layer.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] This invention significantly increases the contact area between materials and air by rotating the door, mounting frame, and placement frame in sequence to adjust the angle in multiple dimensions. Combined with the layered exposed structure, it can quickly eliminate heat dissipation dead zones, greatly shorten the cooling time after demagnetization, reduce the stagnation of waiting for material retrieval, and significantly improve the processing efficiency of batch materials. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2This is a schematic diagram of the door opening structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the top cross-sectional structure of the high-temperature demagnetizing device of this utility model;
[0023] Figure 4 This is a schematic diagram of the opening structure of the door body and mounting bracket of this utility model;
[0024] Figure 5 This is a schematic diagram of the rotating and opening structure of the placement frame of this utility model;
[0025] Figure 6 This is an exploded structural diagram of the placement frame and mounting bracket of this utility model;
[0026] Figure 7 This is a schematic diagram of the overall structure of the placement frame of this utility model.
[0027] Drawing number explanation: 1. High temperature demagnetizing equipment body; 11. Door body; 111. Insulation layer; 12. Rotating rod one; 2. Mounting frame; 21. Rotating rod two; 22. Top block; 3. Placement frame; 31. Traction ring; 32. Curved surface. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings.
[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0030] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.
[0031] It is understood that the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0032] Example 1:
[0033] Please see Figure 1-7 A high-temperature demagnetizing device includes a high-temperature demagnetizing device body 1, a door 11 hinged to the inner wall of the high-temperature demagnetizing device body 1, a mounting frame 2 rotatably installed inside the high-temperature demagnetizing device body 1, and multiple placement frames 3 for storing materials disposed inside the mounting frame 2. By rotating the high-temperature demagnetizing device body 1, the mounting frame 2 and the placement frames 3 in sequence, the materials located in the placement frames 3 are exposed, thereby accelerating the heat dissipation of the materials.
[0034] The material exposure state is switched by the sequential rotation of the door 11, mounting frame 2 and placement frame 3. Compared with traditional fixed demagnetizing equipment, this design can increase the contact area between the material and the air, improve heat dissipation efficiency, shorten the cooling time, reduce the waiting time for material to be picked up after demagnetization, and significantly improve batch processing efficiency. At the same time, the layered exposed structure effectively reduces the heat dissipation dead corners caused by material stacking and ensures uniform material cooling.
[0035] An insulation layer 111 is fixedly installed on the inner wall of the door 11. The insulation layer 111 is made of high-temperature resistant ceramic fiber board and filled with composite insulation cotton to reduce heat loss inside the equipment and prevent the outside temperature of the door from being too high.
[0036] The insulation layer 111 on the inner wall of the door 11 adopts a double-layer structure of high-temperature resistant ceramic fiber board and composite insulation cotton, which ensures the stability of Curie temperature during demagnetization, reduces the external temperature of the door 11, improves operational safety, and effectively reduces heat loss during equipment operation.
[0037] A rotating rod 12 is rotatably installed inside the main body 1 of the high-temperature demagnetizing equipment. The rotating rod 12 passes through the mounting frame 2 and is fixedly connected to the mounting frame 2.
[0038] The fixed connection structure between the rotating rod 12 and the mounting frame 2 ensures that the mounting frame 2 can still rotate smoothly when carrying materials.
[0039] Rotating rod 21 is fixedly installed on the inner wall of the mounting frame 2. Rotating rod 21 passes through multiple placement frames 3 and is rotatably connected to multiple placement frames 3, which facilitates the adjustment of the material exposure angle.
[0040] The rotating connection design between the rotating rod 21 and the placement frame 3 facilitates multi-angle operation when placing materials. Furthermore, after demagnetization, the angle can be adjusted to form an air convection channel on the surface of the material, thereby improving heat dissipation efficiency.
[0041] Each placement frame 3 has a traction ring 31 distributed on its outer wall. The traction ring 31 is used to connect to an external traction component to drive the placement frame 3 to rotate around the rotating rod 21.
[0042] The traction ring 31 on the outer wall of the placement frame 3 adopts a standardized interface design, which can be adapted to various external components such as ropes, pull rods, and electric traction to realize the rotation control of the placement frame 3.
[0043] Multiple top blocks 22 are fixedly installed on the inner wall of the mounting frame 2. The number of top blocks 22 is the same as the number of placement frames 3, which can provide independent support for each placement frame 3.
[0044] Through the independent support design of multiple top blocks 22 corresponding to the placement frame 3, the weight of the material can be evenly distributed to the inner wall of the mounting frame 2, avoiding structural deformation caused by excessive force at a single point.
[0045] The top of the top block 22 is designed with a slope, and an arc surface 32 is provided on the bottom side of one side of the placement frame 3. The combination of the slope and the arc surface 32 can reduce the contact friction between the placement frame 3 and the top block 22 when they rotate.
[0046] The inclined design of the top block 22 and the arc-shaped surface 32 at the bottom of the placement frame 3 form a sliding guide structure, which effectively avoids damage to the components caused by hard collisions.
[0047] The corresponding top blocks 22 are located at the bottom of the corresponding placement frame 3, which support the placement frame 3 and ensure that the placement frame 3 will not shift due to gravity when carrying materials.
[0048] The door 11 is designed in a bent shape. When the door 11 is closed with the body 1 of the high-temperature demagnetizing equipment, it fits perfectly to form a whole. This can enhance the structural integrity of the equipment after it is closed and reduce heat leakage caused by gaps at the corners.
[0049] The bent design of the door 11 allows it to form a complete rectangular structure when closed with the high-temperature demagnetizing equipment body 1, maintaining good sealing performance.
[0050] A high-temperature resistant sealing strip is provided on the side of the high-temperature demagnetizing equipment body 1 that contacts the insulation layer 111, which can further improve the sealing performance of the equipment and enhance the heat insulation effect in conjunction with the insulation layer 111.
[0051] Workflow
[0052] The operator first confirms that the main body 1 of the high-temperature demagnetizing equipment is in a power-off state, and then opens the door panel 11 as follows. Figure 2 As shown, this exposes the internal space of the equipment; then pull the mounting bracket 2 to rotate it around the rotating rod 12 to an angle that facilitates operation, as shown. Figure 4 As shown, ensure that the placement position of the placement box 3 is within a comfortable operating range;
[0053] Place the material to be demagnetized layer by layer in the placement frame 3: When placing the first layer of material, place the material directly and stably on the bearing surface of the placement frame 3;
[0054] When placing multiple layers of materials, the traction ring 31 on the outer wall of the placement frame 3 is pulled to drive the placement frame 3 to rotate and unfold around the rotating rod 21. Figure 5 As shown, the increased operating opening is achieved by rotating and pulling the space apart, which facilitates the placement of materials into deeper or inner layers and avoids interference between the hand and the placed materials.
[0055] After each layer of material is placed, push the placement frame 3 to rotate in the opposite direction to reset it: After the material is loaded into the placement frame 3, the end away from the rotating rod 21 will sink slightly due to gravity. At this time, the arc surface 32 at the bottom of the placement frame 3 contacts the inclined surface at the top of the top block 22. Through the cooperation of the curved surface and the inclined surface of the two, the placement frame 3 slides smoothly along the inclined surface of the top block 22 during the rotation process, is gradually lifted and finally reset to the top of the top block 22. The top block 22 forms a stable support for the placement frame 3, ensuring that the material is placed flat without deviation.
[0056] After all materials are placed, first push the mounting frame 2 to rotate and reset around the rotating rod 12, so that it fits against the inner wall of the high temperature demagnetizing equipment body 1; then close the door 11 so that it fits completely with the equipment body to form a rectangular sealing structure. At this time, the heat insulation layer 111 on the inner wall of the door 11 is in close contact with the high temperature resistant sealing strip of the equipment body, ensuring that a closed space is formed inside the equipment.
[0057] After confirming that the door 11 and the mounting bracket 2 are fully closed, turn on the power supply of the high temperature demagnetizing equipment body 1, set the demagnetizing temperature and heat preservation time required for the corresponding material, start the demagnetizing program, and the equipment begins to heat up and maintain a stable temperature field to carry out the demagnetizing operation.
[0058] After the demagnetization operation is completed, turn off the power to the equipment. After the equipment stops heating, the operator should wear heat-insulating protective equipment or use special tools to first open the door 11, then rotate and pull open the mounting frame 2, and then rotate and open each layer of the placement frame 3 in sequence through the traction ring 31, so that the placement frame 3 and the material are completely exposed to the air. The hollow structure of the placement frame 3 and the rotating and unfolding posture increase the contact area with the air, accelerate the air circulation, and greatly improve the cooling speed of the material.
[0059] After the material cools down to a safe temperature, remove the material layer by layer in the reverse order of placement: first pull the traction ring 31 to open the placement frame 3, remove the surface material, and then operate the lower placement frames 3 in sequence until all the material is removed.
[0060] After the material is removed, push each placement frame 3 to rotate and reset to the top block 22 support state, and then close the mounting frame 2 and the door 11 in sequence to complete the entire demagnetization process.
[0061] According to Example 1 Figures 1 to 5As shown, the door panel 11 adopts a switch structure formed on both sides of the side wall of the high-temperature demagnetizing device body 1. Compared with the traditional side wall design surrounded by three sides, by reducing one side wall, the following design ensures that the internal temperature reaches the same effect as the traditional device when the device is closed after opening:
[0062] The bent design of the door panel 11 forms a complete rectangular structure when the equipment body is closed. Combined with the high-temperature resistant sealing strip on the contact side of the high-temperature demagnetizing equipment body 1 and the insulation layer 111, the two side walls fit the door panel 11, reducing the gap.
[0063] The double-layer insulation layer of high-temperature resistant ceramic fiber board and composite insulation cotton on the inner wall of door panel 11 has improved heat insulation performance compared with traditional flat door panels, which can compensate for the heat loss caused by the reduction of one side wall.
[0064] The heating element inside the device is divided into three independent control zones: the top, the bottom, and the remaining two side walls. Each zone is equipped with an adjustable power heating tube to maintain the uniformity of the internal temperature field and achieve the temperature control effect of traditional three-side-wall devices.
[0065] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.
Claims
1. A high-temperature demagnetizing device, characterized in that, The device includes a high-temperature demagnetizing equipment body (1), a door (11) hinged to the inner wall of the high-temperature demagnetizing equipment body (1), a mounting frame (2) rotatably installed inside the high-temperature demagnetizing equipment body (1), and multiple placement frames (3) for storing materials set inside the mounting frame (2). By rotating the high-temperature demagnetizing equipment body (1), the mounting frame (2) and the placement frames (3) in sequence, the materials located in the placement frames (3) are exposed.
2. The high-temperature demagnetizing device according to claim 1, characterized in that: A heat insulation layer (111) is fixedly installed on the inner wall of the door (11). The heat insulation layer (111) is made of high temperature resistant ceramic fiber board and filled with composite heat insulation cotton.
3. The high-temperature demagnetizing device according to claim 1, characterized in that: The high-temperature demagnetizing equipment body (1) has a rotating rod (12) rotatably installed inside it. The rotating rod (12) passes through the mounting frame (2) and is fixedly connected to the mounting frame (2).
4. The high-temperature demagnetizing device according to claim 3, characterized in that: A rotating rod (21) is fixedly installed on the inner wall of the mounting frame (2). The rotating rod (21) passes through multiple placement frames (3) and is rotatably connected to multiple placement frames (3).
5. The high-temperature demagnetizing device according to claim 4, characterized in that: Each of the placement frames (3) has a traction ring (31) distributed on its outer wall. The traction ring (31) is used to connect to an external traction component to drive the placement frame (3) to rotate around the rotating rod (21).
6. The high-temperature demagnetizing device according to claim 1, characterized in that: Multiple top blocks (22) are fixedly installed on the inner wall of the mounting frame (2). The number of top blocks (22) is the same as the number of placement frames (3), which can provide independent support for each placement frame (3).
7. A high-temperature demagnetizing device according to claim 6, characterized in that: The top of the top block (22) is designed with a sloping surface, and the bottom of one side of the placement frame (3) is provided with an arc-shaped surface (32).
8. The high-temperature demagnetizing device according to claim 7, characterized in that: The corresponding top blocks (22) are located at the bottom of the corresponding placement frame (3) and provide support for the placement frame (3).
9. A high-temperature demagnetizing device according to claim 1, characterized in that: The door (11) is designed in a bent shape, and when the door (11) is closed with the body (1) of the high temperature demagnetizing equipment, it fits perfectly to form a whole.
10. A high-temperature demagnetizing device according to claim 1, characterized in that: A high-temperature resistant sealing strip is provided on the side of the high-temperature demagnetizing device body (1) that contacts the insulation layer (111).