Vacuum induction melting furnace for stainless steel welding rod production

Abstract

The utility model relates to the field of vacuum induction melting furnaces, and discloses a vacuum induction melting furnace for stainless steel welding rod production, which comprises a furnace body, one side of the furnace body is rotatably connected with a furnace cover, one side of the furnace cover is rotatably connected with a lock catch, the inside of the furnace body is fixedly connected with an air pump, and one end of the air pump is provided with an air filtering assembly. An adjusting assembly is arranged in the furnace body, a melting assembly is arranged in the furnace body, a gas filtering assembly comprises an annular water pipe and a gas filtering tower, a spray head is fixedly connected to the interior of the annular water pipe, a drainage valve is fixedly connected to one side of the outer wall of the gas filtering tower, and a water inlet is fixedly connected to the interior of the annular water pipe. According to the utility model, through the synergistic effect of the annular water pipe and the gas filtering tower and the combination of an atomized water spraying system of the spray head, harmful gas and tiny impurities generated in the smelting process can be actively adsorbed and cooled, the welding performance of stainless steel welding rods is improved, and the crack resistance, high temperature resistance and corrosion resistance of the stainless steel welding rods are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vacuum induction melting furnace, especially stainless steel electrode production with vacuum induction melting furnace. BACKGROUND

[0002] In the electrode manufacturing process, the purity of the material, the uniformity of the composition and the gas content, such as oxygen, hydrogen and nitrogen, directly affect the welding performance of the electrode, such as crack resistance and corrosion resistance. The traditional melting method cannot completely remove impurities and harmful gases, while the vacuum induction melting furnace can effectively avoid material oxidation by melting in a vacuum environment, and can achieve precise temperature control through electromagnetic induction heating, thereby significantly improving the purity and composition consistency of the metal liquid. The device is widely used in stainless steel electrode production in high-end fields such as aerospace, nuclear power equipment, ocean engineering and chemical pipelines, and is especially suitable for scenes with strict requirements on welding joint strength, high temperature resistance and corrosion resistance.

[0003] The current mainstream vacuum induction melting furnace mainly consists of a vacuum furnace body, a sealing system, an induction heating system, a feeding and casting mechanism, and a cooling and control system. However, the existing equipment lacks efficient gas filtration or purification components, relying only on a vacuum environment to reduce oxidation, without actively treating the gases or impurities generated during the melting process. These residues can affect the key performance of the electrode, such as crack resistance and corrosion resistance. To address the above problems, there is an urgent need for a vacuum induction melting furnace with efficient gas filtration function to improve the purity of the melted material. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides a vacuum induction melting furnace for stainless steel electrode production, aiming to improve the problem of gas or impurities generated during the melting process affecting the quality of the electrode.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a vacuum induction melting furnace for stainless steel electrode production, comprising a furnace body, a furnace cover rotatably connected to one side of the furnace body, a lock catch rotatably connected to one side of the furnace cover, a gas pump fixedly connected inside the furnace body, a gas filtration assembly provided at one end of the gas pump, an adjustment assembly provided inside the furnace body, and a melting assembly provided inside the furnace body.

[0006] The gas filtration assembly comprises an annular water pipe, a gas filtration tower fixedly connected to the outer wall of the annular water pipe, the gas filtration tower fixedly connected to the output end of the gas pump, a spray head fixedly connected inside the annular water pipe, a drain valve fixedly connected to one side of the outer wall of the gas filtration tower, and a water inlet fixedly connected inside the annular water pipe.

[0007] Further, the adjusting assembly comprises a lead screw, the outer wall of the lead screw is rotationally connected in the furnace body, the furnace body is provided with a motor, the output end of the motor is fixedly connected to one end of the lead screw, a fixed rod is fixedly connected in the furnace body, a rack I is fixedly connected in the fixed rod, a sliding block is threadedly connected to the outer wall of the lead screw, and the outer wall of the fixed rod is slidingly connected in the sliding block.

[0008] Further, a moving plate I is fixedly connected to the upper surface of the sliding block, a gear is rotationally connected in the moving plate I, the gear is meshedly connected with the rack I, and a sliding groove is formed through the moving plate I.

[0009] Further, a roller is slidingly connected in the sliding groove, a connecting block is rotationally connected to the outer wall of the roller, a moving plate II is fixedly connected to the upper surface of the connecting block, a rack II is fixedly connected to the lower surface of the moving plate II, and the rack II is meshedly connected with the gear.

[0010] Further, a cooling pot is fixedly connected to the upper surface of the moving plate II, a mold is arranged in the cooling pot, a cooling pipe is fixedly connected in the cooling pot, a cooling sealing interface is fixedly connected to the outer wall of the furnace body, and the cooling pipe is arranged in the cooling sealing interface.

[0011] Further, a feeder is fixedly connected in the furnace body, and a vacuum sealing interface is fixedly connected in the furnace body.

[0012] Further, a coil sealing interface is rotationally connected in the furnace body, and a handle is fixedly connected in the coil sealing interface.

[0013] Further, the melting assembly comprises an induction coil, the outer wall of the induction coil is fixedly connected in the coil sealing interface, a crucible is fixedly connected in the induction coil, a rotating rod is fixedly connected to the outer wall of the crucible, and the rotating rod is rotationally connected in the furnace body.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] In the utility model, the vacuum induction melting furnace for stainless steel electrode production can actively adsorb and cool harmful gas and small impurities generated in the melting process by the cooperation of the annular water pipe and the filter tower and the atomizing water spraying system of the spray head, significantly improves the gas purification efficiency, reduces the gas content and impurity residue in the material, effectively improves the welding performance of the stainless steel electrode, and enhances the crack resistance, high temperature resistance and corrosion resistance of the stainless steel electrode.

[0016] The vacuum induction smelting furnace for stainless steel electrode production adopts a motor-driven screw rod and a gear and rack transmission system, realizes accurate linear displacement control of a sliding block and a moving plate, can dynamically adjust a mold position, and can quickly withdraw the mold from a smelting furnace when the smelting is completed and the mold is taken out, thereby reducing complexity and manpower consumption when taking out. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A stereographic structure diagram of the vacuum induction smelting furnace for stainless steel electrode production is provided in the utility model.

[0018] Figure 2 An induction coil diagram of the vacuum induction smelting furnace for stainless steel electrode production is provided in the utility model.

[0019] Figure 3 An annular water pipe diagram of the vacuum induction smelting furnace for stainless steel electrode production is provided in the utility model.

[0020] Figure 4 A screw rod diagram of the vacuum induction smelting furnace for stainless steel electrode production is provided in the utility model.

[0021] Figure 5 A Figure 4 An enlarged view of A in the middle.

[0022] Legend:

[0023] 1, furnace body; 2, furnace cover; 3, lock catch; 4, feeder; 5, vacuum sealing interface; 6, cooling sealing interface; 7, coil sealing interface; 8, handle; 9, induction coil; 10, crucible; 11, air pump; 12, gas filter tower; 13, drain valve; 14, annular water pipe; 15, nozzle; 16, water inlet; 17, screw rod; 18, motor; 19, fixed rod; 20, rack one; 21, sliding block; 22, moving plate one; 23, sliding groove; 24, gear; 25, moving plate two; 26, rack two; 27, connecting block; 28, roller; 29, cooling crucible; 30, mold; 31, cooling pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Reference Figures 1-3The utility model provides a vacuum induction smelting furnace for stainless steel electrode production, including furnace body 1, one side of furnace body 1 is rotatably connected with furnace cover 2, and furnace cover 2 can be flexibly opened and closed, one side of furnace cover 2 is rotatably connected with lock catch 3, and lock catch 3 ensures the sealing property when smelting, prevents the outside air from entering and influences vacuum environment, and the inside fixed connection of furnace body 1 has air pump 12, and air pump 12 is used for the harmful gas produced in the initiative suction smelting process, and one end of air pump 12 is provided with filter gas subassembly, and the inside of furnace body 1 is provided with adjusting assembly, and the inside of furnace body 1 is provided with melting assembly;Filter gas subassembly includes annular water pipe 15, and the outer wall of annular water pipe 15 is fixedly connected with filter gas tower 13, and the outer wall of filter gas tower 13 is fixedly connected in the output end of air pump 12, and the inside fixed connection of annular water pipe 15 has shower head 16, and one side of the outer wall of filter gas tower 13 is fixedly connected with drain valve 14, and shower head 16 sprays atomized water and adsorbs the impurity in gas, and the gas after purification is discharged, and the impurity is discharged along with condensate through drain valve 14, and the gas purification efficiency is significantly improved, and the inside fixed connection of annular water pipe 15 has water inlet 17.

[0026] With reference to Figures 1-5The adjusting assembly comprises a lead screw 18, the outer wall of the lead screw 18 is rotationally connected in the inner part of the furnace body 1, the outer wall of the furnace body 1 is provided with a motor 19, the output end of the motor 19 is fixedly connected to one end of the lead screw 18, the motor 19 drives the lead screw 18 to rotate, thereby driving the linear movement of the sliding block 22, so as to realize the accurate adjustment of the position of the mold, reduce the complexity of manual operation, the inner part of the furnace body 1 is fixedly connected with a fixed rod 20, the inner part of the fixed rod 20 is fixedly connected with a rack one 21, the outer wall of the lead screw 18 is threadedly connected with the sliding block 22, the outer wall of the fixed rod 20 is slidingly connected in the inner part of the sliding block 22, the upper surface of the sliding block 22 is fixedly connected with a moving plate one 23, the inner part of the moving plate one 23 is rotationally connected with a gear 25, the gear 25 is meshingly connected with the rack one 21, the inner part of the moving plate one 23 is penetratedly provided with a sliding groove 24, the inner part of the sliding groove 24 is slidingly connected with a roller 29, the outer wall of the roller 29 is rotationally connected with a connecting block 28, the upper surface of the connecting block 28 is fixedly connected with a moving plate two 26, the lower surface of the moving plate two 26 is fixedly connected with a rack two 27, the rack two 27 is meshingly connected with the gear 25, the upper surface of the moving plate two 26 is fixedly connected with a cooling crucible 30, the inner part of the cooling crucible 30 is provided with a mold 31, the gear 25 is meshed with the rack one 21 and the rack two 27, so as to realize the linkage transmission, ensure the stable movement of the moving plate one 23 and the moving plate two 26, and facilitate the positioning and taking out of the mold 31, the inner part of the cooling crucible 30 is fixedly connected with a cooling pipe 32, the cooling water flows circularly through the cooling pipe 32, so as to accelerate the solidification of the molten liquid and improve the production efficiency, the outer wall of the furnace body 1 is fixedly connected with a cooling sealing interface 6, the cooling pipe 32 is arranged in the inner part of the cooling sealing interface 6, the cooling sealing interface 6 ensures that the vacuum environment is not damaged, the inner part of the furnace body 1 is fixedly connected with a feeder 4, which is used for continuously supplementing raw materials or other materials, the inner part of the furnace body 1 is fixedly connected with a vacuum sealing interface 5, which maintains the vacuum environment in the furnace, the inner part of the furnace body 1 is rotationally connected with a coil sealing interface 7, the inner part of the coil sealing interface 7 is fixedly connected with a handle 8, the handle 8 facilitates the rotation of an induction coil 9, so that the inner part of the induction coil 9 pours the raw materials into the crucible, the melting assembly comprises the induction coil 9, the outer wall of the induction coil 9 is fixedly connected in the inner part of the coil sealing interface 7, the inner part of the induction coil 9 is fixedly connected with a crucible 10, the induction coil 9 heats the crucible 10 through electromagnetic induction, the rotating rod 11 makes the molten liquid uniformly heated, so as to improve the consistency of the welding rod, the outer wall of the crucible 10 is fixedly connected with a rotating rod 11, the outer wall of the rotating rod 11 is rotationally connected in the inner part of the furnace body 1.

[0027] Working principle: when smelting, start the air pump 12, the harmful gas generated in the smelting process is sucked from the furnace body 1 to the filter tower 13, the cooling water is injected into the annular water pipe 15 through the water inlet 17, the water flow circulates along the annular pipe, the spray head 16 atomizes the cooling water in the annular water pipe 15 into fine water droplets, which are uniformly sprayed into the internal space of the filter tower 13, the atomized water droplets adsorb the impurity particles in the gas after contacting with the harmful gas, at the same time, the gas temperature is reduced, the volatile substances in the gas are condensed, the impurities are concentrated with the condensed water for treatment, and the purified gas is discharged through the top of the filter tower 13, the adsorbed impurities are collected with the condensed water from the drain valve 14 to the external treatment system;

[0028] The motor 19 drives the screw rod 18 to rotate, drives the sliding block 22 to move linearly along the fixed rod 20, the gear 25 is engaged with the rack one 21, the moving plate one 23 moves to one end, the gear 25 is engaged with the rack two 27, the rack two 27 drives the moving plate two 26 to move, the position of the cooling pot 30 is adjusted, the induction coil 9 rotates the crucible 10 through the rotating rod 11 to make the molten liquid homogeneous, after smelting is completed, the handle 8 is rotated, the crucible 10 is inclined, and the molten liquid is poured out to the mold 31, the cooling pipe 32 is connected to the external cooling circulation system through the cooling sealing interface 6, the cooling water flows in the cooling pot 30, and the molten liquid in the mold 31 is accelerated to solidify and form, the motor 19 reverses the screw rod 18, drives the sliding block 22 to retreat, drives the cooling pot 30 and the mold 31 to exit the furnace body 1, and the welding rod taking-out process is completed, the feeder 4 continuously supplements the raw materials to the crucible 10, and the vacuum sealing interface 5 maintains the vacuum environment in the furnace.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A vacuum induction melting furnace for producing stainless steel electrode, comprising a furnace body (1), characterized in that: The furnace body (1) one side is rotatably connected with the furnace cover (2), the furnace cover (2) one side is rotatably connected with the lock catch (3), the furnace body (1) inside fixedly connected with the air pump (12), the air pump (12) one end is provided with the filter gas subassembly, the furnace body (1) inside is provided with the adjusting assembly, the furnace body (1) inside is provided with the melting subassembly; The filter gas subassembly includes annular water pipe (15), the annular water pipe (15) outer wall fixedly connected with filter gas tower (13), the filter gas tower (13) outer wall fixedly connected in air pump (12) output end, the annular water pipe (15) inside fixedly connected with the shower head (16), the filter gas tower (13) outer wall one side fixedly connected with the drain valve (14), the annular water pipe (15) inside fixedly connected with the water inlet (17).

2. The vacuum induction melting furnace for stainless steel electrode production according to claim 1, characterized by: The adjusting assembly includes lead screw (18), the lead screw (18) outer wall rotationally connected in the furnace body (1) inside, the furnace body (1) outer wall is provided with motor (19), the motor (19) output end fixedly connected in the lead screw (18) one end, the furnace body (1) inside fixedly connected with the fixed rod (20), the fixed rod (20) inside fixedly connected with the rack one (21), the lead screw (18) outer wall threadedly connected with the sliding block (22), the fixed rod (20) outer wall slidingly connected in the sliding block (22) inside.

3. The vacuum induction melting furnace for stainless steel electrode production according to claim 2, characterized by: The sliding block (22) upper surface fixedly connected with the moving plate one (23), the moving plate one (23) inside rotationally connected with the gear (25), the gear (25) and the rack one (21) meshingly connected, the moving plate one (23) inside is through the slide (24) and is set, the slide (24) inside slidingly connected with the gyro wheel (29), the gyro wheel (29) outer wall rotationally connected with the connecting block (28), the connecting block (28) upper surface fixedly connected with the moving plate two (26), the moving plate two (26) lower surface fixedly connected with the rack two (27), the rack two (27) and the gear (25) meshingly connected.

4. The vacuum induction melting furnace for stainless steel electrode production according to claim 3, characterized by: The moving plate two (26) upper surface fixedly connected with the cooling crucible (30), the cooling crucible (30) inside is provided with the mould (31), the cooling crucible (30) inside fixedly connected with the cooling pipe (32), the furnace body (1) outer wall fixedly connected with the cooling sealing interface (6), the cooling pipe (32) is set in the cooling sealing interface (6) inside.

5. The vacuum induction melting furnace for stainless steel electrode production according to claim 4, characterized by: The furnace body (1) inside fixedly connected with the feeder (4), the furnace body (1) inside fixedly connected with the vacuum sealing interface (5).

6. The vacuum induction melting furnace for stainless steel electrode production according to claim 1, characterized by: The furnace body (1) inside rotationally connected with the coil sealing interface (7), the coil sealing interface (7) inside fixedly connected with the handle (8).

7. The vacuum induction melting furnace for stainless steel electrode production according to claim 1, characterized by: The melting subassembly includes induction coil (9), the induction coil (9) outer wall fixedly connected in the coil sealing interface (7) inside, the induction coil (9) inside fixedly connected with the crucible (10), the crucible (10) outer wall fixedly connected with the rotating rod (11), the rotating rod (11) outer wall rotationally connected in the furnace body (1) inside.

8. The vacuum induction melting furnace for stainless steel electrode production according to claim 7, characterized by: ​

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