Water-cooled heat-resistant nickel-chromium electrothermal alloy vacuum melting furnace

Abstract

The invention relates to the technical field of special furnaces for chemical engineering, and discloses a water-cooled heat-resistant nickel-chromium electrothermal alloy vacuum melting furnace. The stirring plate is arranged, the telescopic assembly controls the stirring plate to move downwards, when the stirring plate is located at the top of the solid nickel-chromium alloy, the spring is extruded and contracted at the moment, when the heating crucible shakes back and forth under the action of the driving assembly, the stirring plate stirs the nickel-chromium alloy solid in the crucible, the shaking effect is achieved, and the nickel-chromium alloy solid can be heated to be molten along with melting of the nickel-chromium alloy. A stirring plate moves downwards under the action of a spring, when the stirring plate is located at a working position, a symmetrical gear is meshed with a crucible movable gear at the moment, the stirring plate is driven to rotate forwards and backwards through back-and-forth swing of a crucible, the stirring plate stirs nickel-chromium alloy in a solid-liquid state at the moment, and the mixing effect is achieved; the switch baffle is opened and closed repeatedly, the slag collecting groove collects impurities floating on the surface of the nichrome, and the impurity removing effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of chemical furnace technology, and in particular to a water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace. Background Technology

[0002] A vacuum melting furnace is a specialized metallurgical equipment that melts, refines, and casts metal and alloy raw materials into shapes within a sealed vacuum chamber using specific heating methods. Its core advantage is that it isolates the metal from air, preventing high-temperature oxidation.

[0003] According to Chinese Patent Publication No. CN219869075U, this utility model provides a heat-resistant nickel-chromium electric heating alloy raw material vacuum melting device. The device includes: a furnace body; a melting furnace disposed within the furnace body; a heating induction coil disposed on the melting furnace; a cooling tank disposed within the furnace body; a one-way screw rotatably mounted on the cooling tank, with one end extending outside the furnace body; and a scraper threaded onto the one-way screw, with the scraper making multi-sided sliding contact with the cooling tank. This utility model provides a heat-resistant nickel-chromium electric heating alloy raw material vacuum melting device that can scrape off material adhering to the cooling tank during material discharge, ensuring clean material discharge and reducing material waste.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: When using existing water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnaces, the nickel-chromium alloy is placed in a crucible for heating and melting. However, due to the uneven heating of the nickel-chromium alloy, its melting speed is slow, which affects the production efficiency of the equipment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing technology has the disadvantage of uneven heating of nickel-chromium alloy, which leads to slow melting speed. To this end, we propose a water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace.

[0006] To achieve the above objectives, this application adopts the following technical solution: a water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace, comprising: a melting furnace body, a drive assembly fixedly connected to the bottom of the melting furnace body, a heating crucible fixedly connected to the top of the drive assembly, a heating induction coil fixedly connected to the outer wall of the heating crucible, a crucible movable gear fixedly connected to the side of the heating crucible, a telescopic assembly fixedly connected to the top of the melting furnace body, a mounting frame fixedly connected to the bottom of the telescopic assembly, a movable turntable movably connected to the bottom of the mounting frame, a worm gear body fixedly connected to the outer wall of the movable turntable, a worm gear body meshing with the side of the worm gear body, a symmetrical gear fixedly connected to the end of the worm gear body, a main stirring plate fixedly connected to the bottom of the movable turntable, an auxiliary stirring plate fixedly connected to the side of the main stirring plate, a slag collection trough fixedly connected inside the main stirring plate, a switch baffle movably connected inside the slag collection trough, and a baffle rotating shaft movably connected to the top of the switch baffle.

[0007] Preferably, the heating crucible is bowl-shaped, and the heating induction coil surrounds the outer wall of the heating crucible.

[0008] Preferably, a pair of movable crucible gears are arranged symmetrically about the vertical central axis of the heating crucible, and the diameter of the movable crucible gears is larger than the diameter of the symmetrical gears.

[0009] Preferably, the worm gear body and the mounting bracket are rotatably connected, and the worm gear body and the worm wheel body are connected by unidirectional power transmission.

[0010] Preferably, a pair of auxiliary stirring plates are symmetrically arranged about the vertical central axis of the main stirring plate, and both the main stirring plate and the auxiliary stirring plate are fan-shaped.

[0011] Preferably, the slag collection trough is set at equal intervals inside the main stirring plate, and the slag collection trough is made of high-temperature alloy mesh material.

[0012] Preferably, the switch baffle is symmetrically arranged about the vertical central axis of the slag collection trough, and the switch baffle can only be opened in one direction towards the location of the slag collection trough.

[0013] Preferably, the drive assembly includes a cylinder bottom shaft, which is fixedly connected to the furnace body. A telescopic cylinder is movably connected to the top of the cylinder bottom shaft, and a cylinder top shaft is movably connected to the top of the telescopic cylinder. The cylinder top shaft is fixedly connected to the heating crucible.

[0014] Preferably, the telescopic assembly includes an electric telescopic rod, which is fixedly connected to the furnace body. A telescopic outer shell is fixedly connected to the bottom of the electric telescopic rod, and a telescopic inner rod is slidably connected inside the telescopic outer shell. A device spring is fixedly connected to the top of the telescopic inner rod, and the device spring is fixedly connected to the telescopic outer shell. The telescopic inner rod is fixedly connected to the mounting frame.

[0015] Preferably, a vacuum pump is fixedly connected to the outer wall of the smelting furnace body, a casting chamber is fixedly connected to the side of the smelting furnace body, a casting device is fixedly connected to the inside of the casting chamber, and a casting funnel is fixedly connected to the side of the casting device.

[0016] The technical effects and advantages of this invention are as follows: In this invention, a stirring plate is provided. A telescopic component controls the downward movement of the stirring plate. When the stirring plate is at the top of the solid nickel-chromium alloy, the spring is compressed and contracted. When the heating crucible oscillates back and forth under the action of the drive component, the stirring plate agitates the solid nickel-chromium alloy inside the crucible, creating a shaking effect. As the nickel-chromium alloy melts, the stirring plate moves downward under the action of the spring. When the stirring plate is in the working position, the symmetrical gear meshes with the moving gear of the crucible. The reciprocating oscillation of the crucible drives the stirring plate to rotate in both directions. At this time, the stirring plate stirs the solid-liquid nickel-chromium alloy, achieving a mixing effect. During the forward and reverse rotation of the stirring plate, the switch baffle repeatedly opens and closes, and the slag collection tank collects impurities floating on the surface of the nickel-chromium alloy, achieving a purification effect. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a front view structural schematic diagram of the smelting furnace body of the present invention; Figure 2 This is a schematic diagram of the internal structure of the smelting furnace body of the present invention; Figure 3 This is a schematic diagram of the internal structure of the heating crucible portion of the present invention; Figure 4 This is an enlarged structural schematic diagram of the mounting bracket portion of the present invention; Figure 5 This is an enlarged structural schematic diagram of the worm gear portion of the present invention; Figure 6 This is a cross-sectional structural diagram of the telescopic outer shell portion of the present invention; Figure 7 This is an enlarged structural schematic diagram of the main stirring plate portion of the present invention; Figure 8 This is an enlarged structural schematic diagram of the slag collection tank part of the present invention; Figure 9 This is an enlarged structural schematic diagram of the switch baffle portion of the present invention.

[0018] Legend: 1. Smelting furnace body; 2. Bottom shaft of cylinder; 3. Telescopic cylinder; 4. Top shaft of cylinder; 5. Heating crucible; 6. Heating induction coil; 7. Crucible movable gear; 8. Electric lifting rod; 9. Telescopic outer shell; 10. Telescopic inner rod; 11. Device spring; 12. Mounting frame; 13. Movable turntable; 14. Worm gear body; 15. Worm body; 16. Symmetrical gear; 17. Main stirring plate; 18. Auxiliary stirring plate; 19. Slag collection trough; 20. Switch baffle; 21. Baffle shaft; 22. Vacuum pump; 23. Casting chamber; 24. Casting device; 25. Casting funnel. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] According to the embodiments of the present invention, Figures 1 to 9 As shown.

[0021] The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace is a specialized metallurgical equipment integrating vacuum environment isolation, precise electric heating, and forced water cooling. Its core function is the melting, refining, and forming of high-purity nickel-chromium electric heating alloys. Its structure includes a sealed vacuum chamber, a water-cooled furnace jacket, an electric heating system, a high-temperature resistant crucible, and an intelligent control system. During operation, after the nickel-chromium raw material is loaded into the crucible, the chamber is evacuated to remove air. The electric heating system is activated to melt the raw material into a molten state. Simultaneously, the vacuum environment removes gaseous impurities from the alloy, and the water cooling system ensures stable furnace operation, ultimately achieving the melting of high-purity nickel-chromium electric heating alloys with low oxidation loss.

[0022] In existing water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnaces, operators place the nickel-chromium alloy raw material into the heating crucible 5 according to a preset loading amount. Heat is applied through the furnace's electric heating system, causing the alloy material to gradually transform from a solid to a molten state. However, due to factors such as the non-uniformity of the temperature field distribution within the vacuum melting furnace, the difference in thermal conductivity between nickel and chromium in the nickel-chromium alloy, and the obstructed heat transfer path in the stacked state of the alloy material, significant uneven heating occurs during the heating process. The material at the crucible edge heats up faster than the material in the core area, resulting in a temperature gradient where large pieces of material are hot on the outside and cold on the inside. This uneven heating even leads to a situation where some areas are unmelted while others are overmelted. This insufficient heating uniformity directly results in a significantly lower overall melting rate of the alloy material, not only prolonging the single melting cycle but also reducing the effective production capacity per unit time, ultimately impacting the production efficiency of the equipment. To solve this problem, this invention incorporates the following design in the water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace: A water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace includes: a furnace body 1, which is a specialized metallurgical device that melts, refines, and casts metal and alloy raw materials into shape within a sealed vacuum chamber using a specific heating method. Its core advantage is air isolation, preventing high-temperature oxidation of the metal. A drive assembly is fixedly connected to the bottom of the furnace body 1, including a cylinder bottom shaft 2, a telescopic cylinder 3, and a cylinder top shaft 4. A heating crucible 5 is fixedly connected to the top of the drive assembly. The heating crucible 5 is a container-shaped component made of high-temperature resistant materials such as graphite, ceramics, or high-temperature alloys, used to bear and conduct heat in a high-temperature environment to achieve the melting, heating, or reaction of the nickel-chromium alloy. A heating induction coil 6 is fixedly connected to the outer wall of the heating crucible 5. The heating induction coil 6 is a spiral or ring-shaped electromagnetic component wound from a high-conductivity, high-temperature resistant material, often equipped with a water-cooling system to ensure stable operation under high-temperature conditions. Its core function is to generate an alternating magnetic field by passing in high-frequency alternating current. The heating crucible 5 utilizes the principle of electromagnetic induction to generate eddy currents within a nickel-chromium alloy or conductive crucible, converting electrical energy into heat energy to achieve non-contact, rapid, and precise heating of materials. A movable crucible gear 7 is fixedly connected to the side of the heating crucible 5. A telescopic assembly is fixedly connected to the top of the smelting furnace body 1. The telescopic assembly includes an electric lifting rod 8, a telescopic outer shell 9, a telescopic inner rod 10, and a device spring 11. A mounting frame 12 is fixedly connected to the bottom of the telescopic assembly. A movable turntable 13 is movably connected to the bottom of the mounting frame 12. A worm gear body 14 is fixedly connected to the outer wall of the movable turntable 13. A worm gear body 15 meshes with the side of the worm gear body 14. A symmetrical gear 16 is fixedly connected to the end of the worm gear body 15. A main stirring plate 17 is fixedly connected to the bottom of the movable turntable 13. An auxiliary stirring plate 18 is fixedly connected to the side of the main stirring plate 17. A slag collection trough 19 is fixedly connected inside the main stirring plate 17. A switch baffle 20 is movably connected inside the slag collection trough 19. A baffle shaft 21 is movably connected to the top of the switch baffle 20.

[0023] The heating crucible 5 is bowl-shaped, and the heating induction coil 6 surrounds the outer wall of the heating crucible 5. A pair of movable crucible gears 7 are symmetrically arranged about the vertical central axis of the heating crucible 5. The diameter of the movable crucible gears 7 is larger than the diameter of the symmetrical gears 16. The worm gear body 15 is rotatably connected to the mounting bracket 12, and the worm gear body 15 and the worm wheel body 14 transmit power in one direction. A pair of auxiliary stirring plates 18 are symmetrically arranged about the vertical central axis of the main stirring plate 17. Both the main stirring plate 17 and the auxiliary stirring plate 18 are fan-shaped. The slag collection tank 19 is evenly spaced about the interior of the main stirring plate 17. The slag collection tank 19 is made of high-temperature alloy mesh material, which is a mesh material made from high-temperature alloy as the base material through weaving, stamping, or sintering processes. It can withstand high temperatures. Maintaining structural stability in a low-temperature environment, it possesses excellent resistance to oxidation and molten metal corrosion, and is compatible with nickel-chromium alloys without causing contamination. The switch baffle 20 is symmetrically arranged about the vertical central axis of the slag collection tank 19. The switch baffle 20 can only be opened unidirectionally towards the location of the slag collection tank 19. The drive assembly includes a cylinder bottom shaft 2, which is fixedly connected to the smelting furnace body 1. A telescopic cylinder 3 is movably connected to the top of the cylinder bottom shaft 2. The telescopic cylinder 3 is a pneumatic actuator powered by compressed air, consisting of a cylinder body, piston rod, sealing components, and air inlet and outlet ports. Compressed air alternately enters the chambers at both ends of the cylinder body, driving the piston rod to perform reciprocating linear motion, which can output stable thrust or pull force, realizing precise telescopic control of the mechanical structure. The top of cylinder 3 is movably connected to a cylinder top rotating shaft 4, which is fixedly connected to the heating crucible 5. The telescopic assembly includes an electric lifting rod 8, which is an electric actuator powered by a motor. It consists of a motor, a lead screw, a telescopic rod body, a guide assembly, and a control module. The motor drives the lead screw to rotate, converting the rotational motion into the linear reciprocating telescopic motion of the telescopic rod. This enables precise positioning and stroke control of the mechanical structure and features stable thrust, adjustable stroke, and strong automation adaptability. The electric lifting rod 8 is fixedly connected to the melting furnace body 1. The bottom of the electric lifting rod 8 is fixedly connected to a telescopic outer shell 9, and the inside of the telescopic outer shell 9 is slidably connected to a telescopic inner rod 10. The top of the telescopic inner rod 10 is fixedly connected to a device spring. Spring 11 is fixedly connected to telescopic outer shell 9, and telescopic inner rod 10 is fixedly connected to mounting bracket 12. Vacuum pump 22 is fixedly connected to the outer wall of smelting furnace body 1. Vacuum pump 22 is a device that uses a motor to drive internal rotor blades to rotate or pistons to reciprocate, using mechanical or physical methods to extract gas molecules from a sealed space to isolate air, prevent high-temperature oxidation of metal, and assist in degassing. It is widely used in vacuum preparation of sealed systems in vacuum metallurgy, chemical industry, and other fields. Casting cavity 23 is fixedly connected to the side of smelting furnace body 1. Casting device 24 is fixedly connected inside casting cavity 23. Casting device 24 is a special device in nickel-chromium alloy vacuum smelting system that receives molten metal and achieves precise injection and solidification.The core assembly consists of a casting funnel 25, a flow channel, a forming mold, a positioning and adjustment mechanism, and a cooling component. Through a flow-guiding design adapted to the crucible's tilt angle, it receives the molten nickel-chromium alloy poured from the heated crucible 5. The molten nickel-chromium is buffered by the funnel and directionally transported to the mold cavity via the flow channel. The cooling component facilitates rapid solidification of the molten metal. Simultaneously, the positioning mechanism ensures precise casting alignment, preventing splashing and secondary oxidation, ultimately forming a high-purity nickel-chromium alloy ingot. The casting funnel 25 is fixedly connected to the side of the casting device 24.

[0024] In operation, the nickel-chromium alloy is placed inside the heating crucible 5. The furnace body 1 is then closed, and the vacuum pump 22 is activated to extract air from the furnace body 1, creating a vacuum environment. The heating induction coil 6 is then activated to heat the nickel-chromium alloy inside the crucible 5. The telescopic cylinder 3 is activated, repeatedly extending and retracting to control the slow, back-and-forth oscillation of the heating crucible 5. The tilt angle of the heating crucible 5 is ten degrees. Next, the electric lifting rod 8 is activated, extending and pushing the main stirring plate 17 downwards. When the electric lifting rod 8 is at its working length, the device spring 11 contracts, placing the main stirring plate 17 at the top of the solid nickel-chromium alloy. Accompanying the back-and-forth oscillation of the heating crucible 5, the main stirring plate 17 and the auxiliary stirring plate 18 move the nickel-chromium alloy inside the crucible 5. As the nickel-chromium alloy fuses, the main stirring plate 17 and the auxiliary stirring plate 18 begin to move downwards under the action of the device spring 11. When the main stirring plate 17 and the auxiliary stirring plate 18 are in the working area, the symmetrical gears... 16 meshes with the movable gear 7 of the crucible. The movable gear 7 of the crucible rotates in both directions under the action of the heated crucible 5. The movable gear 7 of the crucible drives the symmetrical gear 16 to rotate in both directions. The symmetrical gear 16 drives the main stirring plate 17 and the auxiliary stirring plate 18 to rotate in both directions through the worm body 15, the worm wheel body 14, and the movable turntable 13. At this time, the main stirring plate 17 and the auxiliary stirring plate 18 stir the nickel-chromium alloy in the heated crucible 5. During the stirring process, the switch baffle 20 is at the liquid surface position. When it moves towards the liquid, the switch baffle 20 is under the force of the liquid. Under the action of the valve, the valve opens inward, and impurities on the liquid surface enter the interior of the slag collection tank 19. When it moves in the opposite direction, the switch baffle 20 closes under the action of force, and the impurities cannot be discharged from the slag collection tank 19, thus playing the role of removing impurities. After the nickel-chromium alloy is melted, the electric lifting rod 8 is retracted, and the electric lifting rod 8 moves the main stirring plate 17 and the auxiliary stirring plate 18 upward. Then the telescopic cylinder 3 retracts, causing the heating crucible 5 to tilt, and the nickel-chromium alloy liquid inside the heating crucible 5 is poured into the casting funnel 25 for casting and cooling in the casting device 24.

[0025] A stirring plate is provided, and the telescopic component controls the downward movement of the stirring plate. When the stirring plate is at the top of the solid nickel-chromium alloy, the spring 11 of the device generates compression deformation and stores elastic potential energy. When the heating crucible 5 swings back and forth under the action of the drive component, the stirring plate stirs the solid nickel-chromium alloy in the heating crucible 5, shaking and breaking up the accumulated solid nickel-chromium alloy. With the melting of the nickel-chromium alloy, the nickel-chromium alloy melts into a solid-liquid mixture. The stirring plate moves downward under the action of the spring 11 of the device. When the stirring plate is in the working position, the symmetrical gear 16 meshes with the crucible movable gear 7. The reciprocating swing of the heating crucible 5 drives the stirring plate to rotate forward and backward. At this time, the stirring plate stirs the solid-liquid nickel-chromium alloy, realizing the uniform mixing of alloy components. During the forward and backward rotation of the stirring plate, the switch baffle 20 repeatedly opens and closes, and the slag collection tank 19 collects the impurities floating on the surface of the nickel-chromium alloy, playing a role in impurity removal.

[0026] In the solid stage, the stirring plate, along with the oscillation of the heating crucible 5, agitates and shakes the nickel-chromium alloy solid, breaking up material buildup and ensuring a uniform, even distribution of the solid. This avoids the temperature gradient caused by external heat and internal cold, effectively accelerating melting and shortening the production cycle. In the solid-liquid mixing stage, the oscillation of the heating crucible 5 and the counter-rotation of the stirring plate create a composite stirring effect, driving a three-dimensional circulation of the molten liquid. This effectively counteracts the component stratification problem caused by the density and melting point differences between nickel and chromium, allowing for more complete diffusion of alloying elements. This prevents cracking and performance fluctuations caused by uneven composition during subsequent processing, improving the finished product qualification rate. The slag collection tank 19 of the stirring plate and the one-way switch baffle 20 form... The anti-backflow collection structure ensures that the switch baffle 20 only opens when the stirring plate rotates forward and backward, directing floating impurities into the slag collection tank 19. When the plate rotates in the opposite direction, the baffle closes to prevent backflow of impurities, significantly reducing defects such as inclusions and porosity in the ingot and improving alloy purity. During the melting process, the stirring of the nickel-chromium alloy reduces the viscosity of the molten liquid, breaks up solid-liquid agglomerates, accelerates the discharge of bubbles and impurities, and prevents premature solidification in certain areas, significantly enhancing the fluidity of the liquid. This not only allows the molten liquid to quickly and continuously fill the mold cavity during casting, ensuring uniform composition in all areas of the ingot, but also effectively improves the casting quality and the yield of finished products.

[0027] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A water-cooled vacuum melting furnace for heat-resistant nickel-chromium electric heating alloys, characterized in that, include: The furnace body includes a drive assembly fixedly connected to its bottom, a heating crucible fixedly connected to its top, a heating induction coil fixedly connected to the outer wall of the heating crucible, a crucible movable gear fixedly connected to the side of the heating crucible, a telescopic assembly fixedly connected to its top, a mounting frame fixedly connected to its bottom, a movable turntable movably connected to the bottom of the mounting frame, a worm gear body fixedly connected to the outer wall of the movable turntable, a worm gear body meshing with the side of the worm gear body, a symmetrical gear fixedly connected to the end of the worm gear body, a main stirring plate fixedly connected to the bottom of the movable turntable, an auxiliary stirring plate fixedly connected to the side of the main stirring plate, a slag collection trough fixedly connected inside the main stirring plate, a switch baffle movably connected inside the slag collection trough, and a baffle rotating shaft movably connected to the top of the switch baffle.

2. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: The heating crucible is bowl-shaped, and the heating induction coil surrounds the outer wall of the heating crucible.

3. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: The crucible movable gears are arranged in a pair symmetrically about the vertical central axis of the heating crucible, and the diameter of the crucible movable gears is larger than the diameter of the symmetrical gears.

4. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: The worm gear body and the mounting bracket are rotatably connected, and the worm gear body and the worm wheel body transmit power in one direction only.

5. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: The auxiliary stirring plates are arranged symmetrically about the vertical central axis of the main stirring plate, and both the main stirring plate and the auxiliary stirring plates are fan-shaped.

6. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: The slag collection trough is set at equal intervals with respect to the interior of the main stirring plate, and the slag collection trough is made of high-temperature alloy mesh.

7. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: The switch baffle is symmetrically arranged about the vertical central axis of the slag collection trough, and the switch baffle can only be opened in one direction towards the location of the slag collection trough.

8. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: The drive assembly includes a cylinder bottom shaft, which is fixedly connected to the furnace body. A telescopic cylinder is movably connected to the top of the cylinder bottom shaft, and a cylinder top shaft is movably connected to the top of the telescopic cylinder. The cylinder top shaft is fixedly connected to the heating crucible.

9. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: The telescopic assembly includes an electric telescopic rod, which is fixedly connected to the furnace body. A telescopic outer shell is fixedly connected to the bottom of the electric telescopic rod, and a telescopic inner rod is slidably connected inside the telescopic outer shell. A device spring is fixedly connected to the top of the telescopic inner rod, and the device spring is fixedly connected to the telescopic outer shell. The telescopic inner rod is fixedly connected to the mounting frame.

10. The water-cooled heat-resistant nickel-chromium electric heating alloy vacuum melting furnace according to claim 1, characterized in that: A vacuum pump is fixedly connected to the outer wall of the smelting furnace body, a casting chamber is fixedly connected to the side of the smelting furnace body, a casting device is fixedly connected inside the casting chamber, and a casting funnel is fixedly connected to the side of the casting device.

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