Novel vacuum furnace for smelting nickel-based high-temperature aluminum alloy

Abstract

The utility model discloses a novel vacuum furnace for smelting nickel-based high-temperature aluminum alloy, which comprises a furnace body, an inner container is welded on the furnace body, a through hole is arranged on the surface of the furnace body, a connecting shaft is arranged in the through hole, and the connecting shaft penetrates through an electrode sensing device to be connected with an electric wire. One end of the electrode induction device connected with the electric wire is connected with the induction coil, the induction coil surrounds the crucible, an asbestosed wire gauze is arranged between the crucible and the induction coil, the other surface of the furnace body is provided with an electrode device inlet and outlet hole, one end outside the connecting shaft is connected with a handle, one end of the connecting shaft is fixedly connected with a crucible support, and the other end of the connecting shaft is fixedly connected with the crucible support. The furnace body is provided with a blanking port, a heat preservation pool is supported below the furnace body, an ingot casting mold is placed in the heat preservation pool, a furnace cover is arranged above the furnace body, the furnace cover is provided with a through pipe, the through pipe is provided with a vacuum pressure gauge, the through pipe is connected with a vacuum device, and the device solves the problem that an existing boiler is uneven in heating.

Description

Technical Field

[0001] The utility model belongs to the field of metal smelting technology, and specifically relates to a new vacuum furnace for smelting nickel-based high-temperature aluminum alloys. Background Art

[0002] Nickel metal has good mechanical, chemical and physical properties. In order to further improve the comprehensive mechanical properties of nickel and meet industrial needs and scientific development technology, it is necessary to add an appropriate amount of other metals to nickel to smelt nickel alloys. For example, aluminum metal is added to the nickel base to smelt a nickel-based aluminum alloy. This nickel-based aluminum alloy has better comprehensive mechanical properties than nickel metal.

[0003] Nickel alloy ingots are mainly produced by vacuum casting. The vacuum casting furnace will experience uneven heating during heating, resulting in uneven metal composition at the end of smelting, which affects the subsequent processing and use effects. This paper proposes a new type of vacuum furnace for smelting nickel-based high-temperature aluminum alloys, which can make the metal evenly heated during the smelting process and ensure the quality of smelting. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of nickel-based high-temperature aluminum alloy smelting vacuum furnace for existing devices to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a new type of vacuum furnace for smelting nickel-based high-temperature aluminum alloys, comprising a furnace body, an inner shell welded to the inside of the furnace body, a through hole opened on the outer surface of the furnace body, a connecting shaft arranged in the through hole, the interior of the connecting shaft being a centrally-through structure, the interior of the connecting shaft passing through an electrode induction device to connect to an electric wire, a section of the electrode induction device connected to the electric wire is connected to an induction coil, the induction coil surrounds a crucible, and an asbestos mesh is provided between the crucible and the induction coil.

[0006] The present invention further describes that an electrode device entry and exit hole is opened on another opposite surface of the exterior of the furnace body.

[0007] The utility model further illustrates that the outer end of the connecting shaft is connected to a handle, the inner end of the connecting shaft is fixedly connected to a crucible support, the crucible support supports the crucible, and a drop opening is opened at the bottom of the crucible.

[0008] The present invention further describes that a heat preservation pool is supported below the furnace body, and an ingot casting mold is placed inside the heat preservation pool.

[0009] The utility model further illustrates that a furnace cover is arranged above the furnace body, and an inspection port is opened on the surface of the furnace cover.

[0010] The utility model further illustrates that a vacuum pressure gauge is arranged at the end of the through pipe, and a vacuum device is connected to the middle of the through pipe.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides an asbestos mesh and an induction coil outside the crucible, so that the heating is uniform during heating, thereby ensuring the quality of smelting. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a rear view schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of a cross-section of a furnace of the present invention;

[0016] In the figure: 1. Furnace body; 2. Furnace cover; 3. Electrode device inlet and outlet holes; 4. Vacuum device; 5. Vacuum pressure gauge; 6. Insulation tank; 7. Inspection port; 8. Handle; 9. Ingot mold; 10. Electrode sensing device connecting wires; 11. Crucible support; 12. Induction coil; 13. Asbestos mesh; 14. Crucible; 15. Connecting shaft; 16. Blanking port; 17. Inner liner; 18. Through hole; 19. Through pipe. DETAILED DESCRIPTION

[0017] The following is a non-limiting detailed description of the technical solution of the present invention in conjunction with preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0018] See also Figure 1-3The utility model provides a technical solution: a new type of vacuum furnace for smelting nickel-based high-temperature aluminum alloys, comprising a furnace body 1, an inner liner 17 welded inside the furnace body 1, a through hole 18 opened on the outer surface of the furnace body 1, a connecting shaft 15 arranged in the through hole 18, the interior of the connecting shaft 15 is a through-hole structure, the interior of the connecting shaft 15 passes through an electrode induction device connected to a wire 10, one end of the electrode induction device connected to the wire 10 is connected to an induction coil 12, the induction coil 12 surrounds a crucible 14, and an asbestos mesh 13 is between the crucible 14 and the induction coil 12. When the staff turns on the external electrode induction device, the metal in the crucible 14 can be heated, and the asbestos mesh 13 can avoid directly heating the crucible 14 and ensure that the crucible 14 is heated evenly;

[0019] An electrode device access hole 3 is provided on the other opposite surface of the exterior of the furnace body 1. One end of the electrode sensing device connection wire 10 is led out of or passed through the electrode device access hole 3 around the internal gap between the inner container 17 and the furnace body 1, preventing the wire from being exposed and facilitating power connection.

[0020] The outer end of the connecting shaft 15 is connected to the handle 8, and the inner end of the connecting shaft 15 is fixedly connected to the crucible support 11. The crucible support 11 supports the crucible 14. The lower part of the crucible 14 is provided with a drop opening 16. When the alloy smelting is completed, the staff rotates the handle 8, and the successfully smelted alloy metal liquid will flow into the drop opening 16 below.

[0021] The bottom of the furnace body 1 supports a heat preservation pool 6, and an ingot mold 9 is placed inside the heat preservation pool 6. The smelted metal will fall into the ingot mold 9 through the drop port 16, and is convenient for cooling in the heat preservation pool 6;

[0022] A furnace cover 2 is provided above the furnace body 1. An inspection port 7 is provided on the surface of the furnace cover 2. Double-layer quartz insulating glass is installed at the inspection port 7 to facilitate staff to check the alloy smelting status.

[0023] A through pipe 19 is provided on the surface of the furnace cover 2, a vacuum pressure gauge 5 is arranged at the end of the through pipe 19, and a vacuum device 4 is connected to the middle of the through pipe 19, which facilitates vacuuming of the entire machine and detection of air pressure. Active metals can be controlled in a vacuum environment, thereby ensuring the performance, quality and stability of the smelted alloy.

[0024] Working principle:

[0025] The staff places the metal to be smelted in the crucible 14, then closes the furnace cover 2 and energizes the induction coil 12. After power is turned on, the metal in the crucible 14 begins to melt. The induction coil 12 evenly wound on the outside of the crucible 14 can heat the crucible 14 evenly and heat the metal stably. The inner tank 17 can insulate the atmosphere in the furnace and accelerate the smelting. The staff can observe through the inspection port 7. After the alloy smelting is completed, the staff turns the handle 8 to pour the smelted alloy into the blanking port 16. The alloy liquid enters the ingot mold 9 set in the insulation pool 6 through the blanking port 16 and is cooled in the insulation pool 6. After cooling is completed, the staff can take away the smelted alloy. The smelted nickel-based aluminum alloy has good comprehensive mechanical properties compared to nickel metal.

[0026] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only used to facilitate the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] Finally, it should be pointed out that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A new type of vacuum furnace for smelting nickel-based high-temperature aluminum alloys, comprising a furnace body (1), characterized in that: An inner liner (17) is welded to the interior of the furnace body (1), a through hole (18) is opened on the outer surface of the furnace body (1), a connecting shaft (15) is arranged in the through hole (18), the interior of the connecting shaft (15) is a centrally connected structure, the interior of the connecting shaft (15) passes through the electrode induction device to connect the wire (10), one end of the electrode induction device connected to the wire (10) is connected to the induction coil (12), the induction coil (12) surrounds the crucible (14), and an asbestos mesh (13) is provided between the crucible (14) and the induction coil (12); An outer end of the connecting shaft (15) is connected to a handle (8), and an inner end of the connecting shaft (15) is fixedly connected to a crucible support (11). The crucible support (11) supports the crucible (14), and a drop opening (16) is provided at the bottom of the crucible (14).

2. The novel vacuum furnace for smelting nickel-based high-temperature aluminum alloy according to claim 1, characterized in that: An electrode device inlet and outlet hole (3) is provided on the other opposite surface of the exterior of the furnace body (1).

3. The novel vacuum furnace for smelting nickel-based high-temperature aluminum alloy according to claim 2, characterized in that: A heat preservation pool (6) is supported below the furnace body (1), and an ingot casting mold (9) is placed inside the heat preservation pool (6).

4. The novel vacuum furnace for smelting nickel-based high-temperature aluminum alloy according to claim 3, characterized in that: A furnace cover (2) is provided above the furnace body (1), and an inspection port (7) is provided on the surface of the furnace cover (2).

5. The novel vacuum furnace for smelting nickel-based high-temperature aluminum alloy according to claim 4, characterized in that: A through pipe (19) is provided on the surface of the furnace cover (2), a vacuum pressure gauge (5) is arranged at the end of the through pipe (19), and a vacuum device (4) is connected to the middle of the through pipe (19).

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