Smelting furnace for titanium alloy processing

Abstract

The utility model discloses a smelting furnace for titanium alloy machining, and belongs to the technical field of titanium alloy machining. A smelting furnace for titanium alloy processing comprises a vacuum furnace with a furnace cover at the top and a vacuum pipe fixedly arranged at the bottom of the vacuum furnace, and further comprises a crucible internally provided with a heating wire, and a material pipe rotationally arranged in the vacuum furnace and fixedly arranged on the furnace cover and used for feeding materials into the crucible; the fixed seat is arranged in the vacuum furnace along a set motion trail, at least one group of placing holes used for installing molds are formed in the fixed seat, and the crucible discharge port is matched with the molds in the placing holes; according to the utility model, the crucible is rotatably arranged in the vacuum furnace, when materials are discharged into the mold, the mold can gradually move downwards along with the entering of molten metal, and at the moment, the crucible is correspondingly rotated to continuously discharge the materials, so that not only is the molten metal in the crucible completely discharged, but also the molten metal discharged to the outer side of the mold can be reduced, and the use effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to titanium alloy processing technical field especially relates to a titanium alloy processing is with smelting furnace. BACKGROUND

[0002] Titanium alloy has a wide application in the fields of aerospace, medical treatment, chemical industry and the like due to its high strength, low density and excellent corrosion resistance. However, smelting of titanium alloy has extremely high requirements on equipment and technology, because titanium is easy to react with oxygen, nitrogen, hydrogen and the like at high temperature, leading to a decline in material performance. Therefore, the smelting furnace for titanium alloy processing usually has functions of high vacuum degree and inert gas protection, that is, a vacuum smelting furnace.

[0003] The structure of the earlier vacuum smelting furnace is that the vacuum needs to be broken after smelting is completed for each furnace, that is, the upper furnace cover is removed for material removal, leading to that the metal solution in the crucible contacts with air in the transfer process, reducing the smelting quality. The smelting chamber and ingot mold chamber are arranged in the furnace in the later period, so that the metal liquid in the crucible can be directly poured into the mold without taking out the crucible after smelting is completed, reducing the contact with air and improving the smelting quality. However, in the prior art, the relative height of the top surface end face of the mold is usually fixed, and it is inconvenient to pour the metal liquid in the crucible, and the metal liquid in the crucible is easy to be not completely poured or poured out of the mold, affecting the use experience. SUMMARY

[0004] The utility model discloses a smelting furnace for titanium alloy processing, which can adjust the position of the mold according to the pouring of the metal liquid, so that the metal liquid can be completely poured into the mold without being poured out of the mold, and the use experience is improved.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A smelting furnace for titanium alloy processing, comprising a vacuum furnace with a furnace cover at the top, a vacuum pipe fixedly arranged at the bottom of the vacuum furnace, a crucible with heating wires inside, rotatably arranged in the vacuum furnace, a driving part arranged in the vacuum furnace for driving the crucible to rotate, a material pipe fixedly arranged on the furnace cover for feeding materials into the crucible, a fixed seat arranged along a set motion track in the vacuum furnace, at least one group of placement holes for installing molds arranged on the fixed seat, and the mold in the placement hole matched with the discharge port of the crucible.

[0007] In order to make the fixed seat reliable lifting, preferably, the rotatingly arranged connecting cylinder is arranged in the furnace cover, the coaxially fixed connecting rod is arranged in the fixed seat, the limiting groove is arranged in the connecting cylinder, the limiting block is fixedly arranged at the end of the connecting rod extending into the limiting groove, the spring is sleeved on the connecting rod, the both ends of the spring are respectively abutted with the limiting block and the limiting groove, and the limiting block is a polygonal structure.

[0008] In order to increase the damping effect when the connecting cylinder rotates, further, the rotating cavity is arranged in the furnace cover, the disc is rotatably arranged in the rotating cavity, the top of the connecting cylinder is fixedly connected with the disc, the elastic ball pin is fixedly arranged on the side wall of the disc, and the plurality of grooves are arranged in the inner wall of the rotating cavity.

[0009] In order to facilitate the driving of the fixed seat to rotate, further, the knob is rotatably arranged on the furnace cover, one end of the knob extending into the rotating cavity is fixedly connected with the disc, a plurality of convex points corresponding to the placing holes are fixedly arranged on the top of the furnace cover, and the arrow is arranged on the top end face of the knob.

[0010] Further, the driving part comprises the rotating plate fixedly arranged at the bottom of one side of the crucible, the support plate is fixedly arranged on the inner wall of the vacuum furnace, the bottom of the crucible is abutted with the top end face of the support plate, the rotating shaft is fixedly arranged on the rotating plate, the rotating shaft is rotatably connected with the support plate, one end of the rotating shaft extending out of the vacuum furnace is fixedly provided with the hand wheel, the handle is rotatably arranged on the end face of the hand wheel, and the angle line is fixedly arranged on the outer wall of the vacuum furnace.

[0011] Further, the first observation window in the arc-shaped structure is fixedly arranged on the side wall of the vacuum furnace, and the second observation window is fixedly arranged on the top of the furnace cover.

[0012] Compared with the prior art, the titanium alloy processing melting furnace has the following beneficial effects:

[0013] 1. The titanium alloy processing melting furnace, by rotatingly arranging the crucible in the vacuum furnace, when discharging the metal liquid into the mold, the mold can be gradually moved downward along with the metal liquid, at this time, the corresponding rotating crucible continues to discharge, which not only helps to completely discharge the metal liquid in the crucible, but also reduces the discharge of the metal liquid to the outside of the mold, and improves the use effect.

[0014] 2. The titanium alloy processing melting furnace, by fixedly arranging the first observation window and the second observation window on the vacuum furnace and the furnace cover respectively, the situation in the vacuum furnace can be observed, and the height of the metal liquid in the mold can also be observed, so that the leakage is reduced, and the use effect is improved.

[0015] The part not involved in the device is same as or can be realized by the prior art, the utility model discloses a crucible is arranged in the rotation in vacuum furnace, when the discharge to the mould, the mould can gradually move down with the metal liquid enters, corresponding rotary crucible continues to discharge at this moment, not only help the metal liquid in the crucible to discharge clean, can also reduce the metal liquid discharge to the mould outside, improve use effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure diagram of the smelting furnace for titanium alloy machining is provided for the utility model Figure 1 ;

[0017] Figure 2 The structure diagram of the smelting furnace for titanium alloy machining is provided for the utility model Figure 2 ;

[0018] Figure 3 The sectional view of the smelting furnace for titanium alloy machining is provided for the utility model;

[0019] Figure 4 The structure diagram of the fixing seat of the smelting furnace for titanium alloy machining is provided for the utility model.

[0020] In the drawing: 1, vacuum furnace;101, first observation window;102, vacuum pipe;103, air inlet pipe;104, support plate;2, crucible;201, rotating plate;202, rotating shaft;203, hand wheel;3, furnace cover;301, second observation window;4, fixing seat;401, placing hole;402, connecting rod;403, limiting block;404, spring;5, connecting barrel;501, limiting groove;502, disc;503, knob;6, material pipe. DETAILED DESCRIPTION

[0021] 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, not all the embodiments.

[0022] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0023] Embodiment:

[0024] Reference Figures 1-4The utility model provides a titanium alloy processing smelting furnace, including the vacuum furnace 1 with the furnace cover 3 in the top, fixedly arranged with the sealing gasket on the top end surface of vacuum furnace 1, the sealing gasket is with the bottom end surface of furnace cover 3 and is in abutment, improves the sealing effect, and here, we preferably adopt the buckle with vacuum furnace 1 and detach the connection of furnace cover 3, fixedly arranged with vacuum pipe 102 on the bottom of vacuum furnace 1, when using, can adopt vacuum pump and so on vacuumizing spare and vacuum pipe 102 connection, realize the vacuumizing of vacuum furnace 1, fixedly arranged with the air inlet pipe 103 on vacuum furnace 1, and fixedly arranged with the valve on air inlet pipe 103 and vacuum pipe 102, fixedly arranged with the pressure gauge on furnace cover 3, after the vacuumizing is completed, can open the valve on air inlet pipe 103, and inert gas is passed into vacuum furnace 1, makes the air pressure in vacuum furnace 1 with standard atmospheric pressure keep consistent or slightly lower than standard atmospheric pressure, improve the use effect.

[0025] In use, by rotating the crucible 2 in the vacuum furnace 1, when discharging into the mold, the mold can gradually move down with the metal liquid entering, at this time the corresponding rotating crucible 2 continues to discharge, not only helps to discharge the metal liquid in the crucible 2 clean, but also can reduce the metal liquid discharge to the outside of the mold, improve the use effect; By fixedly provided with first observation window 101 and second observation window 301 on vacuum furnace 1 and furnace cover 3 respectively, it is convenient to observe the situation in the vacuum furnace 1, and the height of the metal liquid in the mold can also be observed, reducing the leakage, improving the use effect.

[0026] With reference to Figure 3 And Figure 4 The connecting rod 402 is coaxially fixed on the fixed seat 4, the limiting groove 501 is formed in the connecting cylinder 5, the limiting block 403 is fixed on one end of the connecting rod 402 extending into the limiting groove 501, and the spring 404 is sleeved on the connecting rod 402, the two ends of the spring 404 are respectively abutted with the limiting block 403 and the limiting groove 501, and the limiting block 403 is a polygonal structure, which can be quadrilateral or pentagonal or hexagonal, here we prefer to be hexagonal, in use, the reliable lifting of the limiting block 403 in the limiting groove 501 can be ensured, and relative rotation is avoided, in use, the connecting rod 402 is fixed on the fixed seat 4, the limiting block 403 is fixed on the connecting rod 402, the limiting block 403 is lifted and arranged in the connecting cylinder 5, when a certain metal liquid enters the mold, the weight of the fixed seat 4 increases, under the action of gravity, the fixed seat 4 can move downward by a certain distance, with the metal liquid discharging into the mold, the fixed seat 4 continues to descend, not only convenient to adjust the height of the fixed seat 4, but also can drive the fixed seat 4 to rotate through the connecting cylinder 5, realize the change of the position of the mold. At this point, the screw rod can also be used to drive the fixed seat 4 to lift when the crucible 2 discharges.

[0027] With reference to Figure 3In the furnace cover 3, a rotating cavity is formed, a disc 502 is rotatably arranged in the rotating cavity, a sealing ring is fixedly arranged on the outer wall of the disc 502, the sealing ring abuts against the inner wall of the rotating cavity, the sealing effect between the disc 502 and the rotating cavity is improved, external gas is prevented from entering the vacuum furnace 1, the connecting cylinder 5 is fixedly connected with the disc 502, and the disc 502 is fixedly provided with an elastic ball pin on the side wall, a plurality of grooves are formed in the inner wall of the rotating cavity, the elastic ball pin is symmetrically provided with two groups, the grooves are uniformly provided with six groups, and correspond to the positions of the placing holes 401, that is, when the ball of the elastic ball pin is engaged with the groove, at this time, one of the molds in the placing hole 401 is opposite to the crucible 2, and every 120° rotation can change the position of the mold on the horizontal plane, the position of the placing hole 401 is engaged with the ball of the elastic ball pin, in use, by arranging the elastic ball pin on the side wall of the disc 502, the rotation of the fixing seat 4 can be reduced after adjusting the position of the mold, the damping effect is increased, and the sound generated by the ball entering the groove can know that one of the molds in the placing hole 401 is opposite to the crucible 2, and the use effect is improved.

[0028] Referring to Figures 1-3 A knob 503 is rotatably arranged on the furnace cover 3, one end of the knob 503 extending into the rotating cavity is fixedly connected with the disc 502, a plurality of convex points corresponding to the placing holes 401 are fixedly arranged on the top of the furnace cover 3, the convex points are provided with three groups, the three groups are uniformly distributed in a circle, and the axis of the formed circle coincides with the axis of the fixing seat 4, an arrow is formed on the top end face of the knob 503, in use, by fixedly arranging the knob 503 on the disc 502, on the one hand, the fixing seat 4 is facilitated to be driven to rotate, the position of the mold on the horizontal plane is adjusted, and on the other hand, the arrow is formed on the knob 503, the convex points are fixedly arranged on the furnace cover 3, when the arrow is opposite to the direction of the convex point, it is indicated that one of the molds is opposite to the discharge port of the crucible 2.

[0029] Referring to Figures 1-3, the driving part can adopt a servo motor to drive the crucible 2 to overturn, here, the driving part is designed as: a rotating plate 201 is fixedly arranged at one side bottom of the crucible 2, a supporting plate 104 is fixedly arranged on the inner wall of the vacuum furnace 1, the bottom end surface of the crucible 2 abuts against the top end surface of the supporting plate 104, the crucible 2 can be supported when heated, a rotating shaft 202 is fixedly arranged on the rotating plate 201, the rotating shaft 202 is rotationally connected with the supporting plate 104, a hand wheel 203 is fixedly arranged on the end of the rotating shaft 202 extending out of the vacuum furnace 1, a handle is rotationally arranged on the end surface of the hand wheel 203, the axis of the handle is parallel to the axis of the hand wheel 203 but not coincident, that is, the handle is eccentrically arranged, an angle line is fixedly arranged on the outer wall of the vacuum furnace 1, at this time, when the bottom end surface of the crucible 2 abuts against the top end surface of the supporting plate 104, the handle is at the highest position and directly opposite to the zero scale of the angle line, in use, the rotating plate 201 is fixedly arranged at the bottom of the crucible 2, the rotating shaft 202 is fixedly arranged on the rotating plate 201, the hand wheel 203 is fixedly arranged on the rotating shaft 202, the handle is rotationally arranged on the hand wheel 203, and the angle line is fixedly arranged on the outer wall of the vacuum furnace 1, so that the overturning angle of the crucible 2 can be directly observed, and the use effect is improved.

[0030] With reference to Figure 1 and Figure 3 The first observation window 101 in an arc-shaped structure is fixedly arranged on the side wall of the vacuum furnace 1, and the second observation window 301 is fixedly arranged on the top of the furnace cover 3, the transparent, high-temperature-resistant and tempered glass is fixedly arranged in the first observation window 101 and the second observation window 301, in use, the situation in the vacuum furnace 1 can be observed through the first observation window 101 and the second observation window 301, and the discharging process of the crucible 2 can also be directly observed, and the use safety is improved.

[0031] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A smelting furnace for processing titanium alloys, comprising a vacuum furnace (1) with a lid (3) on the top, a vacuum pipe (102) being fixedly arranged at the bottom of the vacuum furnace (1), characterized in that, Also include: The crucible (2) with heating wire inside is rotationally arranged in the vacuum furnace (1), a driving part for driving the crucible (2) to rotate is arranged in the vacuum furnace (1), and the furnace cover (3) is fixedly provided with a material pipe (6) for feeding material into the crucible (2); The fixed seat (4) is arranged along the set motion track in the vacuum furnace (1), at least one group of placing holes (401) for installing molds are arranged on the fixed seat (4), and the discharge port of the crucible (2) is matched with the mold in the placing hole (401).

2. The titanium alloy melting furnace for processing according to claim 1, characterized in that, The connecting cylinder (5) is rotationally arranged in the furnace cover (3), the connecting rod (402) is coaxially and fixedly arranged on the fixed seat (4), the limiting groove (501) is arranged in the connecting cylinder (5), the limiting block (403) is fixedly arranged on one end of the connecting rod (402) extending into the limiting groove (501), the spring (404) is sleeved on the connecting rod (402), the both ends of the spring (404) are respectively abutted with the limiting block (403) and the limiting groove (501), and the limiting block (403) is a polygonal structure.

3. The titanium alloy melting furnace for processing according to claim 2, characterized in that, The rotating cavity is arranged in the furnace cover (3), the disc (502) is rotationally arranged in the rotating cavity, the top of the connecting cylinder (5) is fixedly connected with the disc (502), the elastic ball pin is fixedly arranged on the side wall of the disc (502), and a plurality of grooves are arranged in the inner wall of the rotating cavity.

4. The titanium alloy melting furnace for processing according to claim 3, characterized in that, The knob (503) is rotationally arranged on the furnace cover (3), one end of the knob (503) extending into the rotating cavity is fixedly connected with the disc (502), a plurality of convex points corresponding to the placing hole (401) are fixedly arranged on the top of the furnace cover (3), and the arrow is arranged on the top end face of the knob (503).

5. The titanium alloy melting furnace for processing according to claim 4, characterized in that, The driving part includes the rotating plate (201) fixedly arranged on one side of the bottom of the crucible (2), the support plate (104) is fixedly arranged on the inner wall of the vacuum furnace (1), the bottom of the crucible (2) is abutted with the top end face of the support plate (104), the rotating shaft (202) is fixedly arranged on the rotating plate (201), the rotating shaft (202) is rotationally connected with the support plate (104), one end of the rotating shaft (202) extending out of the vacuum furnace (1) is fixedly provided with the hand wheel (203), the handle is rotationally arranged on the end face of the hand wheel (203), and the angle line is fixedly arranged on the outer wall of the vacuum furnace (1).

6. The titanium alloy melting furnace for processing according to claim 5, characterized in that, The first observation window (101) in arc structure is fixedly arranged on the side wall of the vacuum furnace (1), and the second observation window (301) is fixedly arranged on the top of the furnace cover (3).

Images