CN110158147B - Automatic heat preservation cover plate device of single crystal directional precision casting furnace - Google Patents
Automatic heat preservation cover plate device of single crystal directional precision casting furnace Download PDFInfo
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- CN110158147B CN110158147B CN201910541630.2A CN201910541630A CN110158147B CN 110158147 B CN110158147 B CN 110158147B CN 201910541630 A CN201910541630 A CN 201910541630A CN 110158147 B CN110158147 B CN 110158147B
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- cover plate
- heat
- transmission shaft
- shaft
- swing arm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
- B22D27/045—Directionally solidified castings
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention discloses an automatic heat-preservation cover plate device of a single crystal directional precision casting furnace, wherein an electric push rod device is fixed above a smelting chamber; one end of the electric push rod device is movably connected with a bottom plate by a bolt, and the bottom plate is fixed above the smelting chamber; the pin shaft at the other end of the electric push rod device is movably connected with one end of the upper swing arm; the other end of the upper swing arm is fixedly connected with the upper shaft sleeve; the long key slot in the upper shaft sleeve is connected with an upper transmission shaft; one end of the upper transmission shaft is connected with one end of a cylinder shaft of the cylinder through an upper coupling; the other end of the upper transmission shaft is connected with one end of the lower transmission shaft through a lower coupler; the lower transmission shaft passes through the lower shaft sleeve; the upper end and the lower end of the lower shaft sleeve are respectively fixedly connected with a support plate; the support plate is fixed on the smelting chamber; the other end of the lower transmission shaft is fixedly connected with a heat-preserving cover plate device; the heat preservation cover plate can be moved quickly and efficiently, so that the heat loss of the crucible bag is reduced, and the energy consumption is reduced; and according to the crucible bags with different specifications, the movable opening degree of the heat preservation cover plate above the crucible bags can be changed.
Description
Technical Field
The invention relates to a single crystal orientation precision casting furnace, in particular to an automatic heat-preservation cover plate device of the single crystal orientation precision casting furnace.
Background
The directional solidification means that a forced means is adopted in the solidification process, so that heat flow on a solid-liquid interface of the casting in the whole solidification process is kept to diffuse from one direction, namely directional heat dissipation is realized, meanwhile, a forward temperature gradient is required to be maintained in a crystallization front area so as to prevent new crystal nucleus formation, the temperature gradient in one direction is provided in the metal crystallization process, the transverse crystal boundary generated in the crystallization process is eliminated, the working capacity of the casting at high temperature is obviously improved, crystals grow along the direction as much as possible, and the casting has a columnar crystal or single crystal organization structure in one direction.
The directional solidification precision casting furnace is equipment for smelting materials in a crucible by utilizing the principles of electromagnetic induction and current heating effect, and realizing directional crystallization smelting of castings by heat preservation of a heat preservation bag, control of crystal pulling rate and the like. The directional solidification precision casting furnace adopts a multi-chamber vacuum structure, and comprises a smelting chamber, an ingot casting chamber, a charging chamber and the like. The crucible in the smelting chamber is heated and melted into liquid metal with uniform and pure components through the induction coil, the film shell preheated to a certain temperature in the ingot casting chamber is sent to the smelting chamber through the lifting mechanism to be preheated to a required temperature, the liquid metal with a certain degree of superheat in the crucible in the smelting chamber is poured into the film shell to maintain a certain temperature requirement in the heat preservation bag, and the directional solidification and crystallization of the casting are realized through the crystal pulling mechanism. At present, the movement of a heat preservation cover plate of a heat preservation bag in a single crystal directional precision casting furnace is manually controlled by manpower, a mechanical handle is arranged outside the smelting chamber, and the movement opening of the heat preservation cover plate is observed by naked eyes through an observation hole.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and realizes an automatic heat-preserving cover plate device of a single crystal directional precision casting furnace, which is characterized by comprising a smelting chamber, an electric push rod device, a supporting plate, a bottom plate, a cylinder, an upper transmission shaft, an upper coupler, an upper swing arm, an upper shaft sleeve, a sensor support plate, a lower transmission shaft, a lower coupler, a lower shaft sleeve, a support plate and a heat-preserving cover plate device; the electric push rod device is fixed above the smelting chamber; one end of the electric push rod device is movably connected with the bottom plate through a bolt, and the bottom plate is fixed above the smelting chamber; the pin shaft at the other end of the electric push rod device is movably connected with one end of the upper swing arm; the other end of the upper swing arm is fixedly connected with the upper shaft sleeve; the long key groove in the upper shaft sleeve is connected with the upper transmission shaft; one end of the upper transmission shaft is connected with one end of a cylinder shaft of the cylinder through the upper coupling; the other end of the upper transmission shaft is connected with one end of the lower transmission shaft through the lower coupling; the lower transmission shaft passes through the lower shaft sleeve; the upper end and the lower end of the lower shaft sleeve are respectively and fixedly connected with the support plate; the support plate is fixed on the smelting chamber; the other end of the lower transmission shaft is fixedly connected with a heat-preserving cover plate device.
Further, a support is fixedly connected below the air cylinder; a sensor support plate is fixed below the support; the sensor support plate is arc-shaped; a first sensor and a second sensor are respectively arranged at the front and the rear of the sensor support plate; the lower part of the sensor support plate is fixedly connected with the upper shaft sleeve; the flange sleeve is fixed below the upper shaft sleeve; the flange sleeve is fixed above the smelting chamber.
Further, the heat-insulating cover plate device also comprises a heat-insulating cover plate, a lower swing arm, a screw rod and a spring; one end of the lower swing arm is fixedly connected with one end of the lower transmission shaft through a bolt; the other end of the lower swing arm is fixed with a heat-insulating cover plate by a screw bolt, and a spring is arranged between the heat-insulating cover plate and the lower swing arm.
Further, a crucible bag is arranged below the heat-insulating cover plate.
Further, the included angle between the first sensor and the second sensor is 10-70 degrees.
The invention has the technical effects that the electric push rod and the air cylinder are adopted to provide a power source for the rotation of the heat-insulating cover plate, compared with the conventional manual control of the movement of the heat-insulating cover plate, the heat-insulating cover plate can be quickly and efficiently moved, the heat loss of the crucible ladle is reduced, and the energy consumption is reduced; in the actual use process of the invention, crucible bags with different specifications can be selected according to the requirements of users, the movement opening angle of the heat-insulating cover plate above the crucible bags is required to be changed, the movement opening angle of the heat-insulating cover plate above the crucible bags can be adjusted by adjusting the included angle between the first sensor and the second sensor, the angle is generally 10-70 degrees, the movement opening angle of the heat-insulating cover plate above the crucible bags can be changed by adjusting the included angle between the first sensor and the second sensor 43 according to the size of the crucible bags, and one set of device can adapt to the sizes of crucible bags with various specifications, has strong adaptability, rapid adjustment and simple operation; according to the invention, the spring is additionally arranged between the heat-insulating cover plate and the lower swing arm, so that on one hand, the heat-insulating cover plate is prevented from being in hard contact with the contact surface of the crucible bag, the spring is used for buffering, the damage of the crucible bag surface and the heat-insulating cover plate is reduced, on the other hand, the heat-insulating cover plate is better attached to the crucible bag surface, the heat-insulating effect of the crucible bag is improved, the heat loss during heat insulation is reduced, the equipment utilization rate is improved, and the service life of the heat-insulating cover plate is prolonged.
Drawings
The figure is as follows: is a front view of the invention;
fig. 2: for the front view of the invention, the heat-insulating cover plate is arranged right above the crucible bag;
fig. 3: A-A of the present invention is a half-sectional view;
fig. 4: a top view of the present invention;
fig. 5: according to the top view, the heat-insulating cover plate is arranged right above the crucible bag;
fig. 6: B-B is a cross-sectional view of the present invention;
fig. 7: XI position scale 1:5 enlargement in the invention;
fig. 8: XII position ratio in the invention is 1:5 enlarged.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, in the present embodiment, there is provided an automatic heat-insulating cover plate device of a single crystal orientation precision casting furnace, comprising a smelting chamber 1, an electric push rod device 2, a support plate 21, a bottom plate 22, a cylinder 3, an upper transmission shaft 4, an upper coupling 41, an upper swing arm 44, an upper shaft sleeve 46, a sensor support plate 47, a lower transmission shaft 5, a lower coupling 51, a lower shaft sleeve 52, a support plate 53 and a heat-insulating cover plate device 6; an electric push rod device is fixed 2 above the smelting chamber 1; one end of the electric push rod device 2 is movably connected with a bottom plate 22 through a bolt, and the bottom plate 22 is fixed above the smelting chamber 1; the pin shaft at the other end of the electric push rod device 2 is movably connected with one end of the upper swing arm 44; the other end of the upper swing arm 44 is fixedly connected to an upper shaft sleeve 46; the long key slot 461 in the upper shaft sleeve 46 is connected with the upper transmission shaft 4; one end of the upper transmission shaft 4 is connected with one end of a cylinder shaft of the cylinder 3 through an upper coupling 41; the other end of the upper transmission shaft 4 is connected with one end of the lower transmission shaft 5 through a lower coupling 51; the lower transmission shaft 5 passes through the lower shaft sleeve 52; the upper and lower ends of the lower shaft sleeve 52 are respectively fixedly connected with a support plate 53; the support plate 53 is fixed on the smelting chamber 1; the other end of the lower transmission shaft 5 is fixedly connected with the heat-insulating cover plate device 6, the structure above can realize the rotation of the heat-insulating cover plate device 6 through the electric push rod device 2, the air cylinder 3 can realize the up-and-down movement of the heat-insulating cover plate device 6, when the electric push rod device 2 stretches out, the swing arms 44 are in movable connection, as the two ends of the electric push rod device 2 are in movable connection, the swing arms 44 rotate the upper transmission shaft 4 and the lower transmission shaft 5 to drive the heat-insulating cover plate device 6 to rotate, after the heat-insulating cover plate device 6 reaches the position, the air cylinder 3 falls to realize the action of the cover plate of the heat-insulating cover plate device 6, and the action of opening the cover plate is opposite to the action, so that the power source is provided for the rotation of the heat-insulating cover plate by adopting the electric push rod and air cylinder mode, and the heat-insulating cover plate can be quickly and efficiently moved relative to the current manual control of the heat-insulating cover plate movement, the heat loss of a crucible bag can be reduced, and the energy consumption can be reduced.
In order to further realize that crucible bags with different specifications can be selected according to the requirements of a user, the movement opening angle of the heat-insulating cover plate above the crucible bags needs to be changed, the movement opening angle of the heat-insulating cover plate above the crucible bags can be adjusted by adjusting the included angle between the first sensor and the second sensor, the angle is generally 10-70 degrees, the movement opening angle of the heat-insulating cover plate above the crucible bags can be changed by adjusting the included angle between the first sensor and the second sensor 43 according to the size of the crucible bags, and a support 31 is fixedly connected below the air cylinder 3 as shown in the accompanying drawings from 1 to 5; a sensor support plate 47 is fixed below the support 31; the sensor support plate 47 is arc-shaped; the first sensor 42 and the second sensor 43 are respectively arranged at the front and the rear of the sensor support plate 47; an upper shaft sleeve 46 is fixedly connected below the sensor support plate 47; a flange sleeve 45 is fixed below the upper sleeve 46; the flange sleeve 45 is fixed above the smelting chamber 1. Thus, when the crucible bag 7 is replaced with a different model, the angle of the heat-insulating cover plate can be realized by only adjusting the positions of the first sensor 42 and the second sensor 43.
Referring to fig. 8, the heat-insulating cover device 6 further comprises a heat-insulating cover 60, a lower swing arm 61, a screw 62 and a spring 63; one end of the lower swing arm 61 is fixedly connected with one end of the lower transmission shaft 5 through a bolt; the other end of lower swing arm 61 is with screw rod 62 bolt fastening heat preservation apron 60, set up a spring 63 between heat preservation apron and the lower swing arm 61, like this, add between heat preservation apron 60 and the lower swing arm 61 and establish spring 63, avoid heat preservation apron 60 and crucible package 7 contact surface hard contact on the one hand, spring 63 gives the buffering, reduce the damage of crucible package face and heat preservation apron 60, on the other hand, heat preservation apron 60 better with the laminating of crucible package 7 face, improve crucible package 7 heat preservation effect, reduce heat loss during the heat preservation, improve equipment utilization, the life of extension heat preservation apron. A crucible bag 7 is arranged below the heat-insulating cover plate 60.
Referring to fig. 7, the included angle between the first sensor 42 and the second sensor 43 is 10 ° to 70 °.
In this embodiment, the heat-insulating cover plate 60 is covered with the crucible bag 7, the motor push rod device 2 is started first, the motor push rod device 2 starts to move, the first sensor 42 receives the position signal of the motor push rod device, the motor push rod device stops moving, at this time, the heat-insulating cover plate 60 is positioned right above the crucible bag 7, namely, the cylinder 3 is started, so that the cylinder 3 pushes 4 the transmission shaft and the lower transmission shaft 5 to move downwards, and the heat-insulating cover plate 60 is covered with the crucible bag 7; in order to realize complete separation of the heat preservation cover plate 60 and the crucible bag 7, the air cylinder 3 is started firstly, the air cylinder 3 lifts the heat preservation cover plate 60 upwards, the heat preservation cover plate 60 is separated from the crucible bag 7, namely, the motor push rod device is started, the motor push rod device starts to move, the second sensor 43 receives a front end signal of the motor push rod device, the motor push rod device 2 stops moving, and the heat preservation cover plate 60 is completely separated from the crucible bag 7.
As a preferred embodiment of the present invention, it is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiment, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof, and is also the scope of the present invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. An automatic heat-preserving cover plate device of a single crystal directional precision casting furnace is characterized by comprising a smelting chamber, an electric push rod device, a supporting plate, a bottom plate, an air cylinder, an upper transmission shaft, an upper coupler, an upper swing arm, an upper shaft sleeve, a sensor support plate, a lower transmission shaft, a lower coupler, a lower shaft sleeve, a support plate and a heat-preserving cover plate device; the electric push rod device is fixed above the smelting chamber; one end of the electric push rod device is movably connected with the bottom plate through a bolt, and the bottom plate is fixed above the smelting chamber; the pin shaft at the other end of the electric push rod device is movably connected with one end of the upper swing arm; the other end of the upper swing arm is fixedly connected with the upper shaft sleeve; the long key groove in the upper shaft sleeve is connected with the upper transmission shaft; one end of the upper transmission shaft is connected with one end of a cylinder shaft of the cylinder through the upper coupling; the other end of the upper transmission shaft is connected with one end of the lower transmission shaft through the lower coupling; the lower transmission shaft passes through the lower shaft sleeve; the upper end and the lower end of the lower shaft sleeve are respectively and fixedly connected with the support plate; the support plate is fixed on the smelting chamber; the other end of the lower transmission shaft is fixedly connected with a heat-insulating cover plate device; the lower part of the cylinder is fixedly connected with a support; a sensor support plate is fixed below the support; the sensor support plate is arc-shaped; a first sensor and a second sensor are respectively arranged at the front and the rear of the sensor support plate; the lower part of the sensor support plate is fixedly connected with the upper shaft sleeve.
2. The automatic heat-preserving cover plate device of the single crystal orientation precision casting furnace according to claim 1, wherein the heat-preserving cover plate device further comprises a heat-preserving cover plate, a lower swing arm, a screw rod and a spring; one end of the lower swing arm is fixedly connected with one end of the lower transmission shaft through a bolt; the other end of the lower swing arm is fixed with a heat-insulating cover plate by a screw bolt, and a spring is arranged between the heat-insulating cover plate and the lower swing arm.
3. The automatic heat-preserving cover plate device of the single crystal orientation precision casting furnace according to claim 2, wherein a crucible bag is arranged below the heat-preserving cover plate; the flange sleeve is fixed below the upper shaft sleeve; the flange sleeve is fixed above the smelting chamber.
4. The automatic heat preservation cover plate device of the single crystal orientation precision casting furnace according to claim 1, wherein an included angle between the first sensor and the second sensor is 10-70 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541630.2A CN110158147B (en) | 2019-06-21 | 2019-06-21 | Automatic heat preservation cover plate device of single crystal directional precision casting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541630.2A CN110158147B (en) | 2019-06-21 | 2019-06-21 | Automatic heat preservation cover plate device of single crystal directional precision casting furnace |
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| CN110158147A CN110158147A (en) | 2019-08-23 |
| CN110158147B true CN110158147B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910541630.2A Active CN110158147B (en) | 2019-06-21 | 2019-06-21 | Automatic heat preservation cover plate device of single crystal directional precision casting furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113151894B (en) * | 2020-01-07 | 2023-03-28 | 中科钢研节能科技有限公司 | Crystal growth furnace and crystal growth system |
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| GB1356890A (en) * | 1971-07-14 | 1974-06-19 | Leybold Heraeus Verwaltung | Directed solidification casting |
| JPH07138012A (en) * | 1993-11-16 | 1995-05-30 | Sumitomo Sitix Corp | Device for casting silicon |
| JP2003311389A (en) * | 2002-04-23 | 2003-11-05 | Showa Denko Kk | Method for casting metal and casting apparatus used therefor |
| DE102010022350A1 (en) * | 2010-06-01 | 2011-12-01 | Magna Car Top Systems Gmbh | Cover flap for roof box lid of passenger car, has pivotal axle horizontally aligned between pivotal arm and flap carrier that is moved into defined angle position during intervention of spring element and pivotal axle |
| DE102012005069A1 (en) * | 2012-03-15 | 2013-09-19 | Etec Gmbh | Apparatus for producing solar grade silicon ingots with quasi monocrystalline-, predetermined- or directional crystal structure from silicon bulk material, comprises a vacuum-sealed crucible, an induction heater, and a cooled heat sink |
| CN204867366U (en) * | 2014-12-01 | 2015-12-16 | 沈阳恒润真空科技有限公司 | Multi -functional high gradient vacuum induction directional solidification single crystal casting stove |
| CN208414627U (en) * | 2018-06-27 | 2019-01-22 | 合智熔炼装备（上海）有限公司 | A kind of directional solidification precision casting furnace automatic control crystal pulling apparatus |
| CN109797425A (en) * | 2019-03-12 | 2019-05-24 | 合智熔炼装备（上海）有限公司 | A kind of monocrystalline orientation hot investment casting furnace clamp device and its control method |
-
2019
- 2019-06-21 CN CN201910541630.2A patent/CN110158147B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1356890A (en) * | 1971-07-14 | 1974-06-19 | Leybold Heraeus Verwaltung | Directed solidification casting |
| JPH07138012A (en) * | 1993-11-16 | 1995-05-30 | Sumitomo Sitix Corp | Device for casting silicon |
| JP2003311389A (en) * | 2002-04-23 | 2003-11-05 | Showa Denko Kk | Method for casting metal and casting apparatus used therefor |
| DE102010022350A1 (en) * | 2010-06-01 | 2011-12-01 | Magna Car Top Systems Gmbh | Cover flap for roof box lid of passenger car, has pivotal axle horizontally aligned between pivotal arm and flap carrier that is moved into defined angle position during intervention of spring element and pivotal axle |
| DE102012005069A1 (en) * | 2012-03-15 | 2013-09-19 | Etec Gmbh | Apparatus for producing solar grade silicon ingots with quasi monocrystalline-, predetermined- or directional crystal structure from silicon bulk material, comprises a vacuum-sealed crucible, an induction heater, and a cooled heat sink |
| CN204867366U (en) * | 2014-12-01 | 2015-12-16 | 沈阳恒润真空科技有限公司 | Multi -functional high gradient vacuum induction directional solidification single crystal casting stove |
| CN208414627U (en) * | 2018-06-27 | 2019-01-22 | 合智熔炼装备（上海）有限公司 | A kind of directional solidification precision casting furnace automatic control crystal pulling apparatus |
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| CN110158147A (en) | 2019-08-23 |
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