Directional solidification precision casting device for suspension smelting

Abstract

The utility model relates to the technical field of casting, in particular to a directional solidification precision casting device for suspension smelting, which comprises a smelting chamber and a lower chamber, the upper side of the smelting chamber is provided with a material passing part, the material passing part comprises a flange connecting pipe communicated with the smelting chamber, the rear side of the flange connecting pipe is communicated with a through plate, and the through plate is provided with a through hole. The inner side of the through plate is connected with a sealing plate in a sliding mode, the head end of the sealing plate is located on the inner side of the flange connecting pipe, and the upper side of the through plate is fixedly connected with an electric push rod. The directional solidification precision casting device can carry out suspension smelting on materials in the crucible through the arranged structures such as the material passing part, the rotating part, the crucible induction coil and the adjusting part, the quality of the smelted materials is guaranteed, meanwhile, damage to the crucible caused by too high temperature of the smelted materials is avoided, the service life of the crucible is prolonged, the replacement frequency of the crucible is reduced, and the production cost is reduced. And feeding and temperature measurement can be conveniently and quickly carried out on the crucible in the smelting process while the vacuum environment is not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a suspension smelting directional solidification precision casting device. Background Art

[0002] The most important application of directional solidification precision casting technology is the production of castings with uniform columnar crystal structure, especially in the aviation field to produce engine blades of high-temperature alloys. Compared with castings obtained by ordinary casting methods, it greatly improves the high-temperature strength, creep resistance, durability and thermal fatigue performance of the blades. With the continuous development of my country's aviation engine technology, the engine's turbine inlet temperature is getting higher and higher. For example, the turbine inlet temperature of the WS-15 aircraft engine with a thrust-to-weight ratio of 10 is expected to reach about 1950K to 2000K (1677℃ to 1727℃), while the third-generation domestic nickel-based high-temperature alloy single crystal DD-32 currently in production has an operating temperature of about 1150℃, which is close to the melting point of the material.

[0003] In order to increase the temperature of aircraft engine blades, the most effective method is to increase the rhenium content in the material. However, the addition of rhenium will increase the difficulty of smelting. Traditional directional solidification equipment uses AL2O3 as a smelting crucible, but the resistant temperature of the AL2O3 crucible is below 1700 degrees Celsius. If the temperature is higher, crucible erosion will occur, thereby contaminating the smelting material and reducing the number of times the crucible can be used, requiring frequent replacement. On the other hand, the casting of some castings requires the crucible to be charged during the smelting process. In order to avoid contamination of the material itself by other elements and oxides in the atmosphere, the smelting needs to be in a vacuum environment, which results in the inability to directly perform convenient and fast real-time temperature measurement and charging of the crucible during the smelting process. The above description will affect the production efficiency and quality of castings of the existing directional solidification casting device. Therefore, according to the above problems, a directional solidification precision casting device for suspended melting is proposed. Utility Model Content

[0004] The utility model aims to provide a suspension smelting directional solidification precision casting device to solve the problems of poor production efficiency and easy impact on the quality of castings of the existing directional solidification precision casting device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A directional solidification precision casting device for suspended smelting comprises a smelting chamber and a lower chamber, a material passing part is installed on the upper side of the smelting chamber, the material passing part comprises a flange pipe connected to the smelting chamber, the rear side of the flange pipe is connected to a through plate, the inner side of the through plate is slidably connected with a sealing plate whose head end is located on the inner side of the flange pipe, an electric push rod is fixedly connected to the upper side of the through plate, the output rear end of the electric push rod is fixedly connected to a linkage plate, the front end surface of the linkage plate is fixedly connected to the rear end of the sealing plate, a rotating part composed of a rotating motor and a rod frame is installed on the right side of the smelting chamber, the right end of the rod frame of the rotating part is fixedly connected to a feeding part, and the left end of the rod frame of the rotating part is fixedly connected to a detection part located on the upper side of the material passing part, An adjusting part is installed on the inner side of the smelting chamber, and the adjusting part includes a rail frame. The right inner wall of the smelting chamber is fixedly connected to the rail frame, and the inner sides of the front and rear rail grooves of the rail frame are slidably connected with rotating blocks, and a group of outer end faces of the rotating blocks are fixedly connected with a bearing seat, and the rear side of the rail frame is fixedly connected with an electric telescopic rod passing through the smelting chamber, and the electric telescopic rod is fixedly connected to the smelting chamber. The output left end of the electric telescopic rod is fixedly connected to a second motor, and the output front shaft of the second motor is fixedly connected to the rear rotating block. A water-cooled crucible is installed on the upper side of the bearing seat, and a crucible induction coil is installed on the outer side of the water-cooled crucible. A lower lead is slidably connected in the lower hole of the lower chamber, and a mold is installed on the upper side of the lower lead.

[0007] Preferably, the rotating motor of the rotating part is fixedly connected to the right end face of the smelting chamber, the rod frame of the rotating part is a T-shaped structure, the cross bars on both sides of the rod frame of the rotating part are of the same length, the feeding part is composed of a material box and a lower flange with an electrically controllable switch on the upper side, the lower end face of the lower flange of the feeding part and the upper end face of the flange connecting pipe are arranged in the same plane, the front end of the sealing plate is a circular plate structure, the front end diameter of the sealing plate is the same as the inner diameter of the flange connecting pipe, the front end curved surface of the sealing plate is tightly fitted with the inner wall of the flange connecting pipe, the inner wall of the through plate is fitted with the outer end face of the sealing plate, and the flange connecting pipe and the water-cooled crucible are aligned up and down.

[0008] Preferably, the smelting chamber and the lower chamber are connected to each other, a sealing slide is slidably connected to the inner side of the lower chamber, the upper end surface of the sealing slide of the lower chamber is in contact with the lower end surface of the smelting chamber, the smelting chamber and the lower chamber are both composed of a chamber and a furnace door, and the chamber and the furnace door of the smelting chamber and the lower chamber are spirally connected.

[0009] Preferably, the detection part includes a rod sleeve fixedly connected to the left end of the rod frame of the rotating part, the lower side of the rod sleeve is fixedly connected to a driving box, the lower side of the driving box is fixedly connected to a flange plate that fits with the flange connecting pipe, a temperature measuring rod is installed on the inner side of the rod sleeve, the rear side of the driving box is fixedly connected to a first motor, the end of the output shaft of the first motor passes through the driving box and is fixedly connected to a transmission roller, the transmission roller is tightly fitted with the lower part of the temperature measuring rod, and the transmission roller is arranged on the inner side of the driving box.

[0010] Preferably, a cooling water jacket sleeved on the outside of the mold is installed on the lower inner wall of the smelting chamber, a ring body is fixedly connected to the upper side of the cooling water jacket, a heating coil is installed on the outer side of the ring body, a real-time monitoring device is installed at the smelting chamber, the real-time monitoring device consists of a monitoring host and a temperature sensor, the monitoring host of the real-time monitoring device is fixed on the right side of the smelting chamber, the temperature sensor of the real-time monitoring device is installed on the ring body through wiring, the water-cooled crucible is a pot body structure made of T2 copper, the side wall of the crucible is passed with cooling water and a plurality of groups of slits are cut, the water-cooled crucible is a pot body structure with an openable lower side, a through opening is opened on the inner side of the bearing seat, the openable opening on the lower side of the water-cooled crucible is aligned with the through opening up and down, the rail frame is arranged on the upper side of the mold, and the smelting chamber and the right side of the lower chamber are both equipped with normally closed vacuum pipes.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by providing the feeding part, rotating part, crucible induction coil and adjusting part and other structures, the rotating part can adjust the left and right positions of the detection part and the feeding part, so that the detection part and the feeding part can be connected to the feeding part, and the feeding part can seal the smelting chamber before docking with the detection part and the feeding part, and open it after the feeding part is docked with the detection part or the feeding part, so as to avoid the vacuum environment of the smelting chamber from being destroyed, and avoid the vacuum breaking during the feeding process to cause oxidation of the material, so that the feeding part and the detection part can quickly and conveniently feed or detect the temperature of the water-cooled crucible, and the adjusting part can rotate or displace the cooling crucible, so that the cooling crucible can pour the molten metal into the mold through different casting methods, and the crucible induction coil can be used for the cooling of the crucible. When the power is on, the raw materials being melted in the water-cooled crucible are in a suspended state. The tumbling and rotation of the molten metal can make the alloying of the raw materials more uniform and ensure high purity, thereby avoiding damage to the water-cooled crucible by the melt and pollution of the material melt by the water-cooled crucible. The directional solidification precision casting device can perform suspended melting of the material in the crucible, while ensuring the quality of the molten material and avoiding damage to the crucible caused by excessive temperature of the molten material. The service life of the crucible is increased, the frequency of crucible replacement is reduced, and the crucible can be quickly and conveniently charged and the temperature measured during the melting process without destroying the vacuum environment, thereby solving the problems of poor production efficiency and easy impact on the quality of castings of the existing directional solidification precision casting device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 For this utility model Figure 1 A side view structural schematic diagram of;

[0015] Figure 3 It is a cross-sectional structural schematic diagram of the material passing part of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the flange connection of the utility model;

[0017] Figure 5 For this utility model Figure 1 A schematic cross-sectional structure diagram of ;

[0018] Figure 6 It is a structural schematic diagram of the adjustment part of the utility model;

[0019] Figure 7 It is a cross-sectional structural schematic diagram of the detection part of the utility model;

[0020] Figure 8 For this utility model Figure 1 A schematic diagram of a cross-sectional front view structure;

[0021] Fig. 9 For this utility model Figure 8 Schematic diagram of the tilting casting action structure;

[0022] Fig.10 For this utility model Fig. 9 Schematic diagram of the water-cooled crucible reset charging structure;

[0023] Fig.11 For this utility model Figure 8 Schematic diagram of the bottom casting action structure;

[0024] Fig.12 The utility model is a schematic diagram of the smelting material structure of the water-cooled crucible.

[0025] In the figure: 1, smelting chamber; 2, lower chamber; 3, material passing part; 31, flange pipe; 32, through plate; 33, sealing plate; 34, electric push rod; 35, linkage plate; 4, rotating part; 5, feeding part; 6, detection part; 61, rod sleeve; 62, driving box; 63, flange; 64, temperature measuring rod; 65, first motor; 66, transmission roller; 7, adjustment part; 71, rail frame; 72, rotating block; 73, bearing seat; 74, through port; 75, second motor; 76, electric telescopic rod; 8, water-cooled crucible; 9, crucible induction coil; 10, cooling water jacket; 11, ring body; 12, real-time monitoring device; 13, heating coil; 14, lower lead part; 15, mold. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0029] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0031] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0032] See also Figure 1-12 , the utility model provides a technical solution:

[0033] A suspended smelting directional solidification precision casting device comprises a smelting chamber 1 and a lower chamber 2, a feeding part 3 is installed on the upper side of the smelting chamber 1, the feeding part 3 comprises a flange pipe 31 connected to the smelting chamber 1, a through plate 32 is connected to the rear side of the flange pipe 31, a sealing plate 33 whose head end is located on the inner side of the flange pipe 31 is slidably connected to the inner side of the through plate 32, an electric push rod 34 is fixedly connected to the upper side of the through plate 32, a linkage plate 35 is fixedly connected to the output rear end of the electric push rod 34, and the front end surface of the linkage plate 35 is fixedly connected to the rear end of the sealing plate 33, a rotating part 4 composed of a rotating motor and a rod frame is installed on the right side of the smelting chamber 1, a feeding part 5 is fixedly connected to the right end of the rod frame of the rotating part 4, and a detection part 6 located on the upper side of the feeding part 3 is fixedly connected to the left end of the rod frame of the rotating part 4, An adjusting part 7 is installed on the inner side of the smelting chamber 1, and the adjusting part 7 includes a rail frame 71. The right inner wall of the smelting chamber 1 is fixedly connected with the rail frame 71, and the inner sides of the front and rear rail grooves of the rail frame 71 are slidably connected with rotating blocks 72. A bearing seat 73 is fixedly connected between the outer end faces of a group of rotating blocks 72. An electric telescopic rod 76 passing through the smelting chamber 1 is fixedly connected to the rear side of the rail frame 71. The electric telescopic rod 76 is fixedly connected to the smelting chamber 1, and the output left end of the electric telescopic rod 76 is fixedly connected to the second motor 75. The output front shaft of the second motor 75 is fixedly connected to the rear side rotating block 72. A water-cooled crucible 8 is installed on the upper side of the bearing seat 73, and a crucible induction coil 9 is installed on the outer side of the water-cooled crucible 8. A lower lead 14 is slidably connected in the lower hole of the lower chamber 2, and a mold 15 is installed on the upper side of the lower lead 14.

[0034] The rotating motor of the rotating part 4 is fixedly connected to the right end face of the smelting chamber 1. The rod frame of the rotating part 4 is a T-shaped structure. The lengths of the cross bars on both sides of the rod frame of the rotating part 4 are the same. Through this arrangement, the rotating part 4 can drive the detection part 6 and the feeding part 5 to rotate. The feeding part 5 is composed of a material box with an electrically controllable switch on the upper side and a lower flange. The lower end face of the lower flange of the feeding part 5 and the upper end face of the flange pipe 31 are arranged in the same plane. Through this arrangement, the feeding part 5 can be closely connected with the flange pipe 31 after displacement; the front end of the sealing plate 33 is a circular plate structure, and the sealing plate 33 is The front end diameter is the same as the inner diameter of the flange pipe 31, the front end curved surface of the sealing plate 33 is tightly fitted with the inner wall of the flange pipe 31, and the inner wall of the through plate 32 is fitted with the outer end surface of the sealing plate 33. Through this arrangement, the sealing plate 33 can seal the flange pipe 31. The flange pipe 31 and the water-cooled crucible 8 are aligned up and down. Through this arrangement, the material passing through the flange pipe 31 can enter the inner side of the water-cooled crucible 8. Through this arrangement, the temperature measuring rod 64 passing through the flange pipe 31 can be displaced to the upper side of the opening of the water-cooled crucible 8; the smelting chamber 1 and the lower chamber 2 are interconnected, a sealing slide is slidably connected to the inner side of the lower chamber 2, and the upper end surface of the sealing slide of the lower chamber 2 fits with the lower end surface of the smelting chamber 1. Through this arrangement, the smelting chamber 1 and the lower chamber 2 can be closed and separated as needed. The smelting chamber 1 and the lower chamber 2 are both composed of a chamber and a furnace door. The chambers and furnace doors of the smelting chamber 1 and the lower chamber 2 are spirally connected. Through this arrangement, the smelting chamber 1 and the lower chamber 2 can be opened; the detection part 6 includes a rod sleeve 61 fixedly connected to the left end of the rod frame of the rotating part 4, and the lower side of the rod sleeve 61 is fixedly connected There is a driving box 62, the lower side of the driving box 62 is fixedly connected with a flange 63 that fits with the flange pipe 31, a temperature measuring rod 64 is installed on the inner side of the rod sleeve 61, and the rear side of the driving box 62 is fixedly connected with a first motor 65, the end of the output shaft of the first motor 65 passes through the driving box 62 and is fixedly connected with a transmission roller 66, the transmission roller 66 is tightly fitted with the lower part of the temperature measuring rod 64, and the transmission roller 66 is arranged on the inner side of the driving box 62. Through this arrangement, the first motor 65 can drive the transmission roller 66 to rotate, and the upper and lower positions of the temperature measuring rod 64 can be adjusted through the transmission roller 66;The lower inner wall of the smelting chamber 1 is provided with a cooling water jacket 10 which is sleeved on the outer side of the mold 15. Through this arrangement, the downwardly moving mold 15 and the molten metal can be cooled. The upper side of the cooling water jacket 10 is fixedly connected with a ring body 11. The outer side of the ring body 11 is provided with a heating coil 13. Through this arrangement, the mold 15 can be evenly heated to reach the temperature required for the heat preservation and storage of the molten metal liquid. A real-time monitoring device 12 is installed at the smelting chamber 1. The real-time monitoring device 12 is composed of a monitoring host and a temperature sensor. The monitoring host of the real-time monitoring device 12 is fixed on the right side of the smelting chamber 1. The temperature sensor of the real-time monitoring device 12 is installed at the ring body 11 through wiring. Through this arrangement, the real-time monitoring device 12 can The temperature in the mold 15 is monitored in real time for control; the water-cooled crucible 8 is a pot body structure made of T2 copper, with cooling water flowing through the side wall of the crucible and several groups of slits cut into it. The water-cooled crucible 8 is a pot body structure with an openable bottom. A through hole 74 is provided on the inner side of the bearing seat 73. The openable opening on the lower side of the water-cooled crucible 8 is aligned with the through hole 74 up and down. Through this arrangement, the water-cooled crucible 8 can perform bottom casting on the mold 15. The rail frame 71 is provided on the upper side of the mold 15. Through this arrangement, the water-cooled crucible 8 can be displaced to the upper side of the mold 15 with the rail frame 71 as a track. The right sides of the smelting chamber 1 and the lower chamber 2 are both equipped with normally closed vacuum pipes. Through this arrangement, the staff can evacuate the smelting chamber 1 and the lower chamber 2. ;

[0035] Workflow: The operation of the directional solidification precision casting device during casting is as follows: First, the electrical appliances in this scheme are all powered by an external power supply and controlled by an external controller; Second, the melting chamber 1 and the lower chamber 2 can be separated and closed by moving the sealing slide of the lower chamber 2; Third, the lower lead 14 is controlled to move by an external device; Fourth, the melting chamber 1 and the lower chamber 2 can be vacuumed by an external vacuum device and a normally closed vacuum pipe; First, add the raw materials to be melted into the water-cooled crucible 8, then close the furnace door of the melting chamber 1, and wait until the melting chamber 1 and the lower chamber 2 are fully sealed. After that, the smelting chamber 1 and the lower chamber 2 are evacuated by external equipment to eliminate the pollution of impurities or oxygen in the atmosphere to the raw materials; after the external detection device measures that the vacuum degree in the smelting chamber 1 meets the requirements of the smelting raw materials, the power is turned on, the crucible induction coil 9 is energized, and the raw materials in the water-cooled crucible 8 are heated by electromagnetic induction. In the vacuum smelting process, the crucible induction coil 9 is used to generate an alternating electromagnetic field, which induces current in the metal in the coil, and the induced current heats the molten metal. At the same time, the electromagnetic force formed by the interaction between the electromagnetic field and the induced current suspends the molten metal. The crucible contamination caused by the contact between the melt and other solid walls is completely eliminated, so that the molten raw materials can be tumbled and rotated in a suspended state, so that the raw materials can be alloyed more evenly and with high purity, and the damage to the water-cooled crucible 8 caused by the melt is avoided, and the water-cooled crucible 8 is also avoided from being polluted by the material melt; during the heating process, the rotating part 4 can continue to add materials or measure the temperature of the water-cooled crucible 8 inside the smelting chamber 1. When measuring the temperature, the rotating part 4 rotates the detection part 6 to the upper side of the material passing part 3, so that the flange pipe 31 is connected with the flange plate 63, and then the electric push rod 34 is controlled to extend, so that the linkage plate 35 drives the sealing The plate 33 is displaced backward to open the flange pipe 31. At this time, the first motor 65 is controlled to operate to drive the transmission roller 66 to rotate. The rotation of the transmission roller 66 drives the temperature measuring rod 64 to move downward to the upper part of the mouth of the water-cooled crucible 8 to measure the temperature inside the crucible. When adding materials, the feeding part 5 is rotated and displaced to the upper side of the feeding part 3 through the rotating part 4 in the same manner as the above operation, so that the flange of the feeding part 5 is connected to the flange pipe 31. By opening the lower openings of the feeding part 3 and the feeding box of the feeding part 5, the materials in the feeding box of the feeding part 5 can pass through the flange pipe 31 and fall into the inner side of the water-cooled crucible 8 until all the raw materials are melted into molten metal liquid;At the same time, during the smelting process, the heating coil 13 is energized to ensure that the mold 15 is evenly heated to reach the temperature required for the heat preservation and storage of the molten metal liquid. After all the raw materials are melted, the molten metal liquid is cast into the mold 15 according to the required casting method. The operation of tilting casting is as follows: the second motor 75 is controlled to rotate its output shaft, so that the rear rotating block 72 drives the bearing seat 73 and the water-cooled crucible 8 to rotate, so that the rotating water-cooled crucible 8 can tilt the mold 15 and pour the molten metal liquid into the mold 15 for storage and heat preservation. The operation of bottom casting is as follows: the electric telescopic rod 76 is controlled to contract to output The outlet drives the second motor 75, the rotating block 72, the bearing seat 73 and the water-cooled crucible 8 to move toward the mold 15 with the rail frame 71 as the track, so that the water-cooled crucible 8 moves to the top of the mold 15. At this time, the lower opening of the water-cooled crucible 8 is controlled to open, so that the molten metal liquid passes through the through port 74 and enters the inner side of the mold 15 for storage and heat preservation, and the bottom casting is completed; at this time, the real-time monitoring device 12 can monitor the temperature in the mold 15 in real time for control. After the molten metal liquid in the water-cooled crucible 8 is completely poured out and kept warm in the mold 15 for a set time, the lower guide part 14 is driven by an external device to move, so that the mold 1 5 moves downward. When the mold 15 moves downward, under the action of the cooling water jacket 10, the molten metal liquid in the mold 15 can be quickly directionally solidified and crystallized. When the mold 15 is completely moved to the lower chamber 2, the connection between the smelting chamber 1 and the lower chamber 2 is closed, so that the mold 15 is cooled to room temperature in the vacuum environment of the lower chamber 2. At the same time, the raw materials are continuously smelted in the smelting chamber 1. After the mold 15 is completely cooled, the furnace door of the lower chamber 2 is opened, the ingot that has been directionally solidified is taken out, and then the mold 15 is put back to its original position, the furnace door of the lower chamber 2 is closed, and the lower chamber 2 is evacuated. After the environment meets the requirements for smelting, the connection between the smelting chamber 1 and the lower chamber 2 is opened, and the mold 15 is moved upward to the heating coil 13 through the lower lead 14, and the heating coil 13 is energized to continue heating the mold 15. At this point, a working cycle is completed, so that the directional solidification precision casting device can suspend and melt the material in the crucible, while ensuring the quality of the smelting material, avoiding damage to the crucible caused by excessive temperature of the smelting material, increasing the service life of the crucible, reducing the frequency of crucible replacement, and conveniently and quickly adding materials and measuring the temperature of the crucible during the smelting process without destroying the vacuum environment. ;

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A suspension melting directional solidification precision casting device, comprising a melting chamber (1) and a lower chamber (2), characterized in that: A material passing portion (3) is installed on the upper side of the smelting chamber (1), and the material passing portion (3) comprises a flange pipe (31) connected to the smelting chamber (1); the rear side of the flange pipe (31) is connected to a through plate (32); the inner side of the through plate (32) is slidably connected to a sealing plate (33) whose head end is located on the inner side of the flange pipe (31); the upper side of the through plate (32) is fixedly connected to an electric push rod (34); the output rear end of the electric push rod (34) is fixedly connected to the inner side of the through plate (32); A linkage plate (35) is fixedly connected to the smelting chamber (1), the front end surface of the linkage plate (35) is fixedly connected to the rear end of the sealing plate (33), a rotating part (4) composed of a rotating motor and a rod frame is installed on the right side of the smelting chamber (1), a feeding part (5) is fixedly connected to the right end of the rod frame of the rotating part (4), a detection part (6) located on the upper side of the material passing part (3) is fixedly connected to the left end of the rod frame of the rotating part (4), and an adjusting part (7) is installed on the inner side of the smelting chamber (1). The adjusting portion (7) comprises a rail frame (71), the right inner wall of the smelting chamber (1) is fixedly connected to the rail frame (71), the inner sides of the front and rear rail grooves of the rail frame (71) are slidably connected to rotating blocks (72), a group of outer end surfaces of the rotating blocks (72) are fixedly connected to a bearing seat (73), the rear side of the rail frame (71) is fixedly connected to an electric telescopic rod (76) passing through the smelting chamber (1), and the electric telescopic rod (76) is fixedly connected to the smelting chamber (1). The output left end of the electric telescopic rod (76) is fixedly connected to a second motor (75), the output front shaft of the second motor (75) is fixedly connected to the rear rotating block (72), a water-cooled crucible (8) is installed on the upper side of the bearing seat (73), a crucible induction coil (9) is installed on the outer side of the water-cooled crucible (8), a lower lead portion (14) is slidably connected in the lower hole of the lower chamber (2), and a mold (15) is installed on the upper side of the lower lead portion (14).

2. The suspension melting directional solidification precision casting device according to claim 1, characterized in that: The rotating motor of the rotating part (4) is fixedly connected to the right end face of the smelting chamber (1); the rod frame of the rotating part (4) is a T-shaped structure; the lengths of the cross bars on both sides of the rod frame of the rotating part (4) are the same; the feeding part (5) is composed of a material box with an electrically controllable switch on the upper side and a lower flange; the lower end face of the lower flange of the feeding part (5) and the upper end face of the flange pipe (31) are arranged in the same plane; the front end of the sealing plate (33) is a circular plate structure; the front end diameter of the sealing plate (33) is the same as the inner diameter of the flange pipe (31); the front end curved surface of the sealing plate (33) is tightly fitted with the inner wall of the flange pipe (31); the inner wall of the through plate (32) is fitted with the outer end face of the sealing plate (33); and the flange pipe (31) and the water-cooled crucible (8) are arranged to be aligned up and down.

3. The suspension melting directional solidification precision casting device according to claim 1, characterized in that: The smelting chamber (1) and the lower chamber (2) are interconnected, a sealing slide is slidably connected to the inner side of the lower chamber (2), the upper end surface of the sealing slide of the lower chamber (2) is in contact with the lower end surface of the smelting chamber (1), the smelting chamber (1) and the lower chamber (2) are both composed of a chamber and a furnace door, and the chambers and the furnace doors of the smelting chamber (1) and the lower chamber (2) are spirally connected.

4. The suspension melting directional solidification precision casting device according to claim 1, characterized in that: The detection part (6) comprises a rod sleeve (61) fixedly connected to the left end of the rod frame of the rotating part (4); a driving box (62) is fixedly connected to the lower side of the rod sleeve (61); a flange plate (63) fitted with the flange pipe (31) is fixedly connected to the lower side of the driving box (62); a temperature measuring rod (64) is installed on the inner side of the rod sleeve (61); a first motor (65) is fixedly connected to the rear side of the driving box (62); a transmission roller (66) is fixedly connected to the end of the output shaft of the first motor (65) through the driving box (62); the transmission roller (66) is tightly fitted with the lower part of the temperature measuring rod (64); and the transmission roller (66) is arranged on the inner side of the driving box (62).

5. The suspension melting directional solidification precision casting device according to claim 1, characterized in that: The lower inner wall of the smelting chamber (1) is provided with a cooling water jacket (10) sleeved on the outer side of the mold (15); the upper side of the cooling water jacket (10) is fixedly connected with a ring body (11); the outer side of the ring body (11) is provided with a heating coil (13); the smelting chamber (1) is provided with a real-time monitoring device (12); the real-time monitoring device (12) is composed of a monitoring host and a temperature sensor; the monitoring host of the real-time monitoring device (12) is fixed on the right side of the smelting chamber (1); the temperature of the real-time monitoring device (12) is The sensor is installed on the ring body (11) through wiring. The water-cooled crucible (8) is a pot body structure made of T2 copper, the side wall of the crucible is passed with cooling water and is cut with a plurality of groups of slits. The water-cooled crucible (8) is a pot body structure with an openable bottom. A through hole (74) is provided on the inner side of the support seat (73). The openable opening on the lower side of the water-cooled crucible (8) is aligned with the through hole (74) in the vertical direction. The rail frame (71) is arranged on the upper side of the mold (15). Normally closed vacuum pipes are installed on the right sides of the smelting chamber (1) and the lower chamber (2).

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