A high-temperature induction furnace

Abstract

This application discloses a high-temperature induction furnace, comprising: a cabinet, a feeding assembly, and a configuration assembly. A vacuum chamber is installed on the upper outer side of the cabinet, and a door is hinged to the front outer side of the vacuum chamber. A gas filling and discharging assembly is arranged on the left side of the vacuum chamber. A multi-hole viewing window is installed through the upper front side of the vacuum chamber. From left to right, the feeding assembly, an infrared temperature measurement system, and a radiation baffle are arranged sequentially on the upper rear side of the vacuum chamber. This application belongs to the field of metal material preparation technology. The purpose of this application is to solve the problem that the existing technology has significant functional limitations and cannot achieve auxiliary functions such as suction casting, slag analysis, and smelting distillation through configuration adjustment. The achieved technical effect is that it facilitates the assembly of a structure that can be adjusted to achieve auxiliary functions such as suction casting, slag analysis, and smelting distillation on the upper outer side of the multi-hole viewing window, thereby facilitating the meeting of complex material preparation and experimental needs and reducing functional limitations.

Description

Technical Field

[0001] This application relates to the field of metal material preparation technology, specifically to a high-temperature induction furnace. Background Technology

[0002] High-temperature induction furnaces are core equipment in laboratories of industrial and mining enterprises, research institutes, and other organizations. They are mainly used for experiments such as high-temperature alloy melting and casting, metal purification, suction casting, and static slag analysis. Through electromagnetic induction heating technology, they can precisely control the high-temperature environment, achieving efficient material processing and playing an irreplaceable key role in materials research and development and industrial production.

[0003] For example, a laboratory high-temperature furnace with Chinese patent publication number CN 222951510 U discloses a high-temperature furnace that improves the sealing performance between the sealing door body and the high-temperature furnace body.

[0004] However, most current high-temperature induction furnaces have functional limitations, lacking core structures for alloy feeding and slag melting and stripping, and cannot achieve auxiliary functions such as suction casting, slag analysis, and melting distillation through configuration adjustments, making it difficult for them to meet the needs of complex material preparation and experimentation. Utility Model Content

[0005] Therefore, this application provides a high-temperature induction furnace to solve the problem that existing furnaces have functional limitations and cannot achieve auxiliary functions such as suction casting, slag analysis, and smelting distillation through configuration adjustments.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A high-temperature induction furnace includes: a cabinet, a feeding assembly, and a configuration assembly. A vacuum chamber is installed on the upper outer side of the cabinet, and a door is installed on the front outer side of the vacuum chamber via a hinge. A gas filling and discharging assembly is provided on the left side of the vacuum chamber. A multi-hole viewing window is installed through the upper front side of the vacuum chamber, and a scum cleaning assembly is provided on the upper right side of the vacuum chamber.

[0008] The upper rear side of the vacuum chamber is provided with a feeding component, an infrared temperature measurement system and a radiation baffle from left to right, and the rear end of the vacuum chamber is connected to a vacuum system. The upper end of the vacuum chamber is provided with multiple pressure monitoring connectors, and the lower end of the vacuum chamber is equipped with a water-cooled mold interface.

[0009] The upper outer side of the multi-hole window is equipped with a configuration component via a flange. The inner side of the vacuum chamber is equipped with an induction coil via a base. An insulation layer is installed inside the induction coil, and a pre-made crucible is placed inside the insulation layer.

[0010] Furthermore, a control system is provided on the outer right side of the cabinet, and an electric tilting system connected to the vacuum chamber is provided on the middle left side of the control system.

[0011] Furthermore, the scum cleaning assembly includes a corrugated pipe, a rotating cover, a rotating material rod, and a scum-removing spoon. The corrugated pipe is connected to the upper right side of the vacuum chamber by screws, and a rotating cover is threadedly installed on the outer side of the upper end of the corrugated pipe. A rotating material rod located inside the corrugated pipe is installed through the middle of the rotating cover.

[0012] Furthermore, the lower end of the rotating material rod is provided with a slag-removing spoon extending into the vacuum chamber, and the connection between the corrugated pipe and the vacuum chamber is provided with a swinging telescopic sleeve located outside the rotating material rod.

[0013] Furthermore, the feeding assembly includes a feeding bin, a rotary handle, and a feeding grid. The feeding bin is installed on the upper rear side of the vacuum chamber, and a feeding grid is installed inside the upper end of the feeding bin. A rotary handle is provided on the upper outer side of the feeding bin, and the lower end of the rotary handle is connected to the feeding grid.

[0014] Furthermore, a feeding pipe is connected to the lower outer side of the feeding bin, and the lower end of the feeding pipe extends into the vacuum chamber for slag smelting and stripping.

[0015] Furthermore, the configuration components include a fixing clip and an infrared thermometer. The fixing clip is fixedly installed on the upper outer side of the multi-hole window by screws, and the infrared thermometer is provided on the upper outer side of the fixing clip. The infrared thermometer is located directly above the prefabricated crucible and is used for slag ratio analysis.

[0016] Furthermore, the configuration components include a first sealing seat, a movable module, and a water-cooled telescopic shaft. The first sealing seat is fixedly installed on the upper outer side of the multi-hole window by screws, and the movable module is provided on the upper outer side of the first sealing seat. The water-cooled telescopic shaft, which passes through the first sealing seat, is installed on the left side of the movable module, and the lower end of the water-cooled telescopic shaft extends into the vacuum chamber for suction casting.

[0017] Furthermore, the configuration component includes a second sealing seat and a water-cooled receiving tray. The second sealing seat is fixedly installed on the upper outer side of the porous window by screws, and the water-cooled receiving tray is provided through the interior of the second sealing seat for smelting and distillation.

[0018] Compared with the prior art, this application has at least the following beneficial effects:

[0019] 1. A configuration component is installed on the upper outer side of the multi-hole window via a flange, which facilitates the assembly of a structure that can be adjusted to achieve suction casting, slag analysis and smelting distillation auxiliary functions on the upper outer side of the multi-hole window, thereby facilitating the preparation and experimental needs of complex materials.

[0020] 2. A slag removal assembly is installed on the upper right side of the vacuum chamber. Molten metal slag in the prefabricated crucible floats to the surface of the molten steel. The rotating rod, supported and linked by the bellows and control system, extends and rotates in a vacuum environment. The swinging telescopic sleeve ensures that the rotating rod can swing freely at a specified angle. The operator manually controls the slag-removing spoon to extend to the surface of the molten steel as the rotating rod moves, scooping up the slag and transferring it to a spare prefabricated crucible, thus completing the slag removal operation.

[0021] 3. A feeding component is provided at the upper rear of the feeding hopper. After the master alloy is melted, the rotating handle drives the feeding grid to rotate. During the rotation, the alloy material falls into the feeding pipe through the through hole and automatically falls into the pre-made crucible by gravity, realizing precise feeding and alloy melting. Attached Figure Description

[0022] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are capable of making conventional adjustments or further optimizations to the addition / reduction / classification of certain units, their specific shapes, positional relationships, connection methods, size ratios, etc.

[0023] Figure 1 This is a front view of a high-temperature induction furnace provided in one embodiment of this application;

[0024] Figure 2 A side view of a high-temperature induction furnace provided in one embodiment of this application;

[0025] Figure 3 A top view of a high-temperature induction furnace provided in one embodiment of this application;

[0026] Figure 4 A side cross-sectional view of the connection between the feeding pipe and the vacuum chamber of a high-temperature induction furnace, provided as an embodiment of this application;

[0027] Figure 5 A front cross-sectional view of the connection between the bellows and the vacuum chamber of a high-temperature induction furnace, provided as an embodiment of this application;

[0028] Figure 6 A front cross-sectional view of a high-temperature induction furnace connected to a perforated window and a fixing clip, provided as an embodiment of this application;

[0029] Figure 7 A front cross-sectional view of a high-temperature induction furnace connected to a first sealing seat, according to an embodiment of this application;

[0030] Figure 8 This is a front view cross-sectional structural diagram of a high-temperature induction furnace connected to a second sealing seat, according to one embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Cabinet; 2. Inflation / Deflation Assembly; 3. Front View Window; 4. Multi-hole View Window; 5. Feeding Bin; 6. Corrugated Pipe; 7. Control System; 8. Pressure Monitoring Connector; 9. Infrared Temperature Measurement System; 10. Vacuum System; 11. Water-cooled Mold Interface; 12. Electric Tilting System; 13. Radiant Baffle; 14. Water-cooled Receiving Plate; 15. Vacuum Chamber; 16. Chamber Door; 17. Rotating Handle; 18. Feeding Compartment; 19. Feeding Pipe; 20. Induction Coil; 21. Insulation Layer; 22. Precast Crucible; 23. Rotating Cover; 24. Rotating Material Rod; 25. Swinging Telescopic Sleeve; 26. Slag Scoop; 27. Fixing Clamp; 28. Infrared Thermometer; 29. ​​First Sealing Seat; 30. Moving Module; 31. Water-cooled Telescopic Shaft; 32. Second Sealing Seat; 33. Suction Casting Mold. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0034] like Figures 1 to 5 As shown in the embodiment of this application, a high-temperature induction furnace includes: a cabinet 1, a feeding component and a configuration component. A vacuum chamber 15 is installed on the upper outer side of the cabinet 1, and a door 16 is installed on the front outer side of the vacuum chamber 15 via a hinge. A gas filling and releasing component 2 is provided on the left side of the vacuum chamber 15.

[0035] A front viewing window 3 is installed through the upper center of the chamber door 16 for real-time monitoring of the smelting process and operating status. Meanwhile, the gas filling and venting assembly 2 controls gas exchange within the vacuum chamber 15, enabling inert gas protection or process gas injection.

[0036] A multi-hole viewing window 4 is installed through the upper front side of the vacuum chamber 15, and a scum cleaning component is provided on the upper right side of the vacuum chamber 15; a feeding component, an infrared temperature measurement system 9 and a radiation baffle 13 are arranged sequentially from left to right on the upper rear side of the vacuum chamber 15.

[0037] The multi-hole viewing window 4 has a sealing cover on its upper outer side, which is fastened to the multi-hole viewing window 4 with screws. After opening the sealing cover, the multi-hole viewing window 4 can be used to observe the melting process from multiple angles to assist in monitoring the melting process from different directions. When installing the configuration components, the sealing cover can be removed first using the screws.

[0038] The slag removal component can be used to remove slag generated during the smelting process, improving material purity. The infrared temperature measurement system 9 monitors the temperature of the molten metal non-contactly, ensuring process accuracy. The radiation baffle 13 shields against heat radiation, reducing heat loss and protecting equipment components.

[0039] The vacuum chamber 15 is connected to a vacuum system 10 at its rear end. Multiple pressure monitoring connectors 8 are installed at the upper end of the vacuum chamber 15, and a water-cooled mold interface 11 is installed at the lower end of the vacuum chamber 15. A control system 7 is installed on the outer right side of the cabinet 1, and an electric tilting system 12 connected to the vacuum chamber 15 is installed in the middle left side of the control system 7.

[0040] The vacuum system 10 can evacuate the air from the vacuum chamber 15 to a high vacuum state. The pressure monitoring connector 8 is connected to an external vacuum pressure detection system, which can monitor the pressure inside the vacuum chamber 15 in real time. The water-cooled mold interface 11 connects to the cooling mold to achieve rapid shaping. The electric tilting system 12 can drive the vacuum chamber 15 to tilt, facilitating the discharge of waste materials.

[0041] A configuration component is mounted on the upper outer side of the perforated window 4 via a flange. An induction coil 20 is mounted on the inner side of the vacuum chamber 15 via a base. An insulation layer 21 is installed inside the induction coil 20, and a pre-made crucible 22 is placed inside the insulation layer 21. This facilitates heating the insulation layer 21 and the pre-made crucible 22 via the induction coil 20, melting the molten material placed inside the pre-made crucible 22.

[0042] The scum removal assembly includes a bellows 6, a rotating cover 23, a rotating material rod 24, and a scum-collecting spoon 26. The bellows 6 is connected to the upper right side of the vacuum chamber 15 by screws, and the rotating cover 23 is threadedly mounted on the outer side of the upper end of the bellows 6. The rotating material rod 24, located inside the bellows 6, is installed through the middle of the rotating cover 23. The lower end of the rotating material rod 24 is provided with a scum-collecting spoon 26 extending into the vacuum chamber 15, and a swing telescopic sleeve 25 located outside the rotating material rod 24 is provided at the connection between the bellows 6 and the vacuum chamber 15.

[0043] The rotating material rod 24 transmits manual operating force to achieve the extension, rotation, and angle adjustment of the slag-collecting spoon 26. The bellows 6 compensates for displacement deviations during the axial movement of the rotating material rod 24 while maintaining a vacuum seal. The rotating cover 23 ensures the sealing of the vacuum chamber 15 and guarantees the rotation effect of the rotating material rod 24. The swinging telescopic sleeve 25 supports and guides the rotating material rod 24, allowing it to swing freely during axial extension and retraction.

[0044] Molten metal slag in the prefabricated crucible 22 floats to the surface of the molten steel. The rotating rod 24, supported and linked by the bellows 6 and the control system 7, extends and rotates in a vacuum environment. The swinging telescopic sleeve 25 ensures that the rotating rod 24 can swing freely at a specified angle. The operator manually controls the slag-removing spoon 26 to extend to the surface of the molten steel as the rotating rod 24 moves, scooping up the slag and transferring it to the spare prefabricated crucible 22, thus completing the slag cleaning operation.

[0045] The feeding assembly includes a feeding bin 5, a rotary handle 17, and a feeding grid 18. The feeding bin 5 is installed on the upper rear side of the vacuum chamber 15, and the feeding grid 18 is installed inside the upper end of the feeding bin 5. The rotary handle 17 is provided on the upper outer side of the feeding bin 5, and the lower end of the rotary handle 17 is connected to the feeding grid 18. A feeding pipe 19 is provided on the lower outer side of the feeding bin 5, and the lower end of the feeding pipe 19 extends into the vacuum chamber 15 for slag smelting and stripping.

[0046] The feeding bin 5 has a through hole on one side of its central section. The feeding bin 5 is used to store the alloy raw materials to be added. The feeding grid 18 is used to separate and quantitatively carry different alloy materials to ensure accurate feeding as needed. The rotating handle 17 is used to drive the feeding grid 18 to rotate and control the alloy to fall from the through hole. The feeding pipe 19 is used to guide the alloy material from the feeding bin 5 into the prefabricated crucible 22 by gravity.

[0047] After the master alloy is melted, rotating the rotary handle 17 drives the feeding grid 18 to rotate. During the rotation, the alloy material falls into the feeding pipe 19 through the through hole and automatically falls into the pre-made crucible 22 by gravity, realizing precise feeding and alloy melting. Example

[0048] like Figure 6 As shown, including all the contents of Embodiment 1, the configuration components include a fixing clip 27 and an infrared thermometer 28. The fixing clip 27 is fixedly installed on the upper outer side of the multi-hole window 4 by screws, and the infrared thermometer 28 is provided on the upper outer side of the fixing clip 27. The infrared thermometer 28 is located directly above the prefabricated crucible 22 and is used for slag ratio analysis.

[0049] The lower end of the fixing clip 27 is fixedly installed on the upper outer side of the multi-hole window 4 by screws to stably support the infrared thermometer 28. The infrared thermometer 28 integrates dual colorimetric temperature measurement and high-definition imaging functions to monitor the temperature of molten steel and the distribution of slag in real time.

[0050] During operation, the infrared thermometer 28 illuminates the molten steel in the precast crucible 22 through the multi-hole window 4, receives the reflected infrared signal, and calculates the actual temperature, which can reach 3200℃. Example

[0051] like Figure 7As shown, including all the contents of Embodiment 1, the configuration components include a first sealing seat 29, a moving module 30, and a water-cooled telescopic shaft 31. The first sealing seat 29 is fixedly installed on the upper outer side of the multi-hole window 4 by screws, and the moving module 30 is provided on the upper outer side of the first sealing seat 29. The water-cooled telescopic shaft 31, which passes through the first sealing seat 29, is installed on the left side of the moving module 30, and the lower end of the water-cooled telescopic shaft 31 extends into the vacuum chamber 15 for suction casting.

[0052] The first sealing seat 29 is used to ensure the sealing of the vacuum chamber 15 and the installation effect of the moving module 30, so that the moving module 30 can drive the water-cooled telescopic shaft 31 and the suction casting mold 33 to move up and down, thereby controlling the molding position and speed. At the same time, the water-cooled telescopic shaft 31 can cool the mold.

[0053] The molten metal remains liquid in the prefabricated crucible 22. The suction casting mold 33 is driven downward into the molten steel by the moving module 30. At the same time, inert gas is introduced into the cavity and a vacuum is drawn in the mold to form a negative pressure difference. The molten steel is pressed into the suction casting mold 33 under positive pressure. The water-cooled telescopic shaft 31 cools the mold in real time and maintains the structural stability, realizing efficient suction casting. Example

[0054] like Figure 8 As shown, including all the contents of Embodiment 1, the configuration components include a second sealing seat 32 and a water-cooled receiving plate 14. The second sealing seat 32 is fixedly installed on the upper outer side of the perforated window 4 by screws, and the water-cooled receiving plate 14 is provided through the interior of the second sealing seat 32 for smelting and distillation.

[0055] The bellows 6 is fixed to the upper outer side of the second sealing seat 32 by screws to ensure the sealing of the vacuum chamber 15 and the installation effect of the water-cooled receiving plate 14, so that the lower end of the water-cooled receiving plate 14 can condense the volatilized low-melting-point metal vapor and achieve distillation separation.

[0056] After the metal melts in the pre-made crucible 22, the low-melting-point impurities volatilize under high temperature and low pressure. The vapor rises to the surface of the water-cooled receiving plate 14 and condenses upon cooling. The melting and distillation are carried out simultaneously through the evaporation-condensation cycle. The high-purity metal remains in the pre-made crucible 22, while the impurities are trapped on the surface of the water-cooled receiving plate 14, thus completing the melting and distillation process.

[0057] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A high-temperature induction furnace, comprising a cabinet (1), a feeding assembly, and a configuration assembly, characterized in that, A vacuum chamber (15) is installed on the upper outer side of the cabinet (1), and a door (16) is installed on the front outer side of the vacuum chamber (15) via a hinge. A gas filling and discharging assembly (2) is provided on the left side of the vacuum chamber (15). A multi-hole viewing window (4) is installed through the upper front side of the vacuum chamber (15), and a scum cleaning assembly is provided on the upper right side of the vacuum chamber (15). The upper rear side of the vacuum chamber (15) is provided with a feeding component, an infrared temperature measurement system (9) and a radiation baffle (13) from left to right, and the rear end of the vacuum chamber (15) is connected to a vacuum system (10). The upper end of the vacuum chamber (15) is provided with multiple pressure monitoring connectors (8), and the lower end of the vacuum chamber (15) is provided with a water-cooled mold interface (11). The upper outer side of the multi-hole window (4) is equipped with a configuration component via a flange. The inner side of the vacuum chamber (15) is provided with an induction coil (20) via a base. An insulation layer (21) is installed inside the induction coil (20), and a pre-made crucible (22) is placed inside the insulation layer (21).

2. A high-temperature induction furnace according to claim 1, characterized in that, The cabinet (1) is provided with a control system (7) on the outer right side, and an electric tilting system (12) connected to the vacuum chamber (15) is provided on the middle left side of the control system (7).

3. A high-temperature induction furnace according to claim 1, characterized in that, The scum cleaning assembly includes a corrugated pipe (6), a rotating cover (23), a rotating material rod (24), and a scum scoop (26). The corrugated pipe (6) is connected to the upper right side of the vacuum chamber (15) by screws, and the rotating cover (23) is rotatably installed on the upper outer side of the corrugated pipe (6). The rotating material rod (24) located inside the corrugated pipe (6) is installed through the middle of the rotating cover (23).

4. A high-temperature induction furnace according to claim 3, characterized in that, The lower end of the rotating material rod (24) is provided with a slag-removing spoon (26) extending into the vacuum chamber (15), and the connection between the corrugated pipe (6) and the vacuum chamber (15) is provided with a swing telescopic sleeve (25) located outside the rotating material rod (24).

5. A high-temperature induction furnace according to claim 1, characterized in that, The feeding assembly includes a feeding bin (5), a rotary handle (17), and a feeding grid (18). The feeding bin (5) is installed on the upper rear side of the vacuum chamber (15), and the feeding grid (18) is installed inside the upper end of the feeding bin (5). The rotary handle (17) is provided on the upper outer side of the feeding bin (5), and the lower end of the rotary handle (17) is connected to the feeding grid (18).

6. A high-temperature induction furnace according to claim 5, characterized in that, The lower outer side of the feeding bin (5) is connected to a feeding pipe (19), and the lower end of the feeding pipe (19) extends into the vacuum chamber (15) for slag smelting and stripping.

7. A high-temperature induction furnace according to claim 1, characterized in that, The configuration components include a fixing clip (27) and an infrared thermometer (28). The fixing clip (27) is fixedly installed on the upper outer side of the multi-hole window (4) by screws, and the infrared thermometer (28) is provided on the upper outer side of the fixing clip (27). The infrared thermometer (28) is located directly above the prefabricated crucible (22) and is used for slag ratio analysis.

8. A high-temperature induction furnace according to claim 1, characterized in that, The configuration components include a first sealing seat (29), a moving module (30), and a water-cooled telescopic shaft (31). The first sealing seat (29) is fixedly installed on the upper outer side of the multi-hole window (4) by screws, and the moving module (30) is provided on the upper outer side of the first sealing seat (29). The water-cooled telescopic shaft (31) is installed on the left side of the moving module (30) and passes through the first sealing seat (29). The lower end of the water-cooled telescopic shaft (31) extends into the vacuum chamber (15) for suction casting.

9. A high-temperature induction furnace according to claim 1, characterized in that, The configuration components include a second sealing seat (32) and a water-cooled receiving plate (14). The second sealing seat (32) is fixedly installed on the upper outer side of the porous window (4) by screws, and the water-cooled receiving plate (14) is provided through the interior of the second sealing seat (32) for smelting and distillation.

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