CN107338475B - Crucible guard board - Google Patents

Crucible guard board Download PDF

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Publication number
CN107338475B
CN107338475B CN201710627178.2A CN201710627178A CN107338475B CN 107338475 B CN107338475 B CN 107338475B CN 201710627178 A CN201710627178 A CN 201710627178A CN 107338475 B CN107338475 B CN 107338475B
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CN
China
Prior art keywords
baffle
plate
heat preservation
fixing column
plate body
Prior art date
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Active
Application number
CN201710627178.2A
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Chinese (zh)
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CN107338475A (en
Inventor
陈养俊
肖贵云
王全志
曾先平
李林东
陈伟
金浩
林瑶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Jinko Solar Co Ltd
Jinko Solar Co Ltd
Original Assignee
Zhejiang Jinko Solar Co Ltd
Jinko Solar Co Ltd
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Application filed by Zhejiang Jinko Solar Co Ltd, Jinko Solar Co Ltd filed Critical Zhejiang Jinko Solar Co Ltd
Priority to CN201710627178.2A priority Critical patent/CN107338475B/en
Publication of CN107338475A publication Critical patent/CN107338475A/en
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    • 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
    • C30B28/00—Production of homogeneous polycrystalline material with defined structure
    • C30B28/04—Production of homogeneous polycrystalline material with defined structure from liquids
    • C30B28/08—Production of homogeneous polycrystalline material with defined structure from liquids by zone-melting
    • 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
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/02—Elements
    • C30B29/06—Silicon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

The invention provides a crucible guard plate, which comprises a plate body, a first fixed column and a second fixed column which are respectively arranged at two ends of the plate body, wherein the plate body adopts a hollow structure, the bottom and the inside of the side edge of the plate body are respectively provided with an air pressure hole and a heat preservation component, a supporting plate is arranged between the heat preservation component and the first fixed column, the heat preservation component comprises a plurality of heat preservation plates, each heat preservation plate comprises a first baffle plate, a second baffle plate, a third baffle plate and a fourth baffle plate, the first baffle plate at the top end of the heat preservation component is connected with the supporting plate, a plurality of air guide holes are respectively arranged on the second baffle plate and the third baffle plate, a plurality of air guide holes are arranged on the first fixed column, and a plurality of guide holes are arranged on the first fixed column.

Description

Crucible guard board
Technical Field
The invention relates to the technical field of crucibles, in particular to a crucible guard board.
Background
Along with the continuous improvement of the living standard of people in the development of the times, people use solar energy more and more frequently, wherein the solar battery is used more commonly, the solar battery occupies the dominant position of the photovoltaic industry at present, and the cost of a silicon wafer in the solar battery occupies more than half of the cost of single/polycrystalline silicon, so that the cost of the silicon wafer is reduced, the quality of the silicon wafer is improved, the method has extremely important significance for the development of the photovoltaic industry, and the quality and the efficiency of a silicon ingot and the silicon wafer cast by a semi-melting process are better in the production process of the silicon wafer.
When the ingot furnace is used for growing and casting polycrystalline crystals by adopting a semi-melting process, a quartz crucible is used as a container, a silicon material is required to be filled in the crucible and put in the ingot furnace for casting, the quartz ceramic crucible belongs to the container which is required to be used in the industry chain, and a crucible guard plate is used as a necessary product for wrapping the crucible in the ingot casting process, so that the ingot casting furnace plays a quite important role in the whole ingot casting process.
The existing crucible guard plate is of a full solid structure composed of graphite, and due to the characteristics of the graphite, the existing crucible guard plate is large in size, heavy and very fragile, a plurality of workers are required to cooperate to lift the crucible guard plate during use, so that the crucible guard plate is laborious and unsafe, the existing crucible guard plate is good in heat conductivity, cannot achieve a heat preservation effect in an ingot casting process, and can easily conduct heat dissipation on a crucible, casting of polycrystalline crystals in the crucible can be affected, and casting efficiency of the crucible is reduced.
Disclosure of Invention
Based on this, an object of an embodiment of the present invention is to provide a crucible guard plate capable of effectively preventing heat dissipation of a crucible.
The crucible guard plate comprises a plate body, a first fixing column and a second fixing column which are respectively arranged at two ends of the plate body, wherein the plate body adopts a hollow structure, an air pressure hole and a heat preservation component are respectively arranged at the bottom and the inside of the side edge of the plate body, and a support plate is arranged between the heat preservation component and the first fixing column;
the heat preservation assembly comprises a plurality of heat preservation plates which are sequentially connected, each heat preservation plate comprises a first baffle, a second baffle, a third baffle and a fourth baffle which are sequentially connected, the first baffle in the later heat preservation plate is connected with the fourth baffle in the former heat preservation plate between the adjacent heat preservation plates, the first baffle at the top end in the heat preservation assembly is connected with the supporting plate, the first baffle and the third baffle are attached to the inner wall of the plate body, and a plurality of air guide holes are formed in the second baffle and the third baffle;
the utility model discloses a heat preservation subassembly, including first fixed column, heat preservation subassembly, first fixed column is dorsad be equipped with a plurality of gas-supply holes on one side of the heat preservation subassembly, the gas-supply hole is used for to carry argon gas in the first fixed column, first fixed column is directed towards a plurality of guide holes on one side of the heat preservation subassembly, the guide hole is used for with argon gas in the first fixed column is dredged to in the heat preservation subassembly.
Above-mentioned crucible backplate, through first fixed column the gas-supply hole with the design of dredging the hole can be conveniently right the plate body with carry the argon gas in the heat preservation subassembly, and then when the argon gas enters into the plate body with in the heat preservation subassembly, can effectually reduce the thermal conductivity of plate body to played the heat preservation effect to the crucible the casting in-process of crucible has blockked the heat transfer of limit portion to the seed crystal, has improved the casting efficiency of the polycrystalline crystal of crucible, through the heat preservation subassembly with the hollow design of plate body has reduced the cost, weight, the transportation of crucible backplate have made things convenient for and has played the effect of bearing to the argon gas, have reached the reduction the effect of plate body thermal conductivity, through first baffle the second baffle the third baffle with the design of fourth baffle has improved the stability of plate body structure, and through the design of gas-supply hole has made things convenient for the argon gas to be in the heat preservation subassembly.
Further, a dredging plate is arranged on one side, facing the heat insulation component, of the first fixing column, the dredging plate is perpendicular to the supporting plate, the dredging holes are sequentially formed in the dredging plate along the vertical direction of the first fixing column, the radius of each dredging hole is smaller than that of each gas transmission hole, and the radius of each gas transmission hole is smaller than that of each gas transmission hole.
Further, the side surfaces of the first fixing column and the second fixing column are respectively provided with a bolt hole and a fixing bolt, and the bolt holes are matched with the fixing bolts.
Further, the backup pad with the structure of fourth baffle is the same, the backup pad with the lateral wall laminating of first fixed column, the backup pad is used for improving first fixed column with the stability of structure between the heat preservation subassembly.
Further, the structures of the second baffle plate and the fourth baffle plate are the same, the included angles of the second baffle plate, the fourth baffle plate and the third baffle plate are equal, and the included angle is larger than 30 degrees and smaller than 90 degrees.
Further, the first fixing column and the second fixing column are respectively provided with an exhaust groove on one side facing the plate body, and the exhaust grooves on the first fixing column and the second fixing column are respectively recessed towards the bolt holes and the fixing bolts.
Further, the exhaust groove adopts a semicircular structure, and a plurality of exhaust holes with circular structures are sequentially formed in the arc bottom surface of the exhaust groove, and the exhaust holes are used for conveniently exhausting argon in the first fixing column and the second fixing column.
Further, an air extraction assembly is arranged on one side, facing the heat preservation assembly, of the second fixing column, the air extraction assembly comprises a fan and a motor electrically connected with the fan, and the fan is used for absorbing argon in the first fixing column towards the second fixing column.
Further, an air guide assembly is arranged in the first fixing column and comprises an air pipe with an air inlet connected with the air transmission hole and an exhaust pipe with an air outlet connected with the dredging hole.
Further, the first fixing column is matched and connected with the plate body, the second fixing column is matched and connected with the plate body, and the heat preservation component is matched and connected with the plate body in an integral injection molding, welding or pasting mode.
Drawings
FIG. 1 is a schematic view of a crucible guard provided in a first embodiment of the present invention;
FIG. 2 is a schematic view of the thermal insulation assembly of FIG. 1;
FIG. 3 is a schematic view of the insulation board in FIG. 2;
FIG. 4 is a schematic structural view of the first fixing post of FIG. 1;
FIG. 5 is a schematic structural diagram of an air guide assembly according to a first embodiment of the present invention;
FIG. 6 is a schematic structural view of the second fixing post of FIG. 1;
FIG. 7 is a schematic top view of the second fixing post of FIG. 6;
fig. 8 is a schematic structural view of a second fixing post according to a second embodiment of the present invention;
description of the Main element symbols
Detailed Description
In order to facilitate a better understanding of the invention, the invention will be further explained below with reference to the drawings of the related embodiments. Embodiments of the present invention are illustrated in the accompanying drawings, but the present invention is not limited to the above-described preferred embodiments. Rather, these embodiments are provided so that this disclosure will be thorough.
Referring to fig. 1, a first embodiment of the present invention provides a crucible protection plate 100 for wrapping a crucible to prevent heat dissipation of the crucible, wherein argon is introduced into the crucible protection plate 100 when the crucible protection plate 100 is in use, the crucible protection plate 100 adopts a rectangular plate structure, and comprises a plate body 10, a heat preservation component 20 arranged in the plate body 10, and a first fixing post 30 and a second fixing post 40 respectively arranged at two ends of the plate body 10, a support plate 11 is arranged between the heat preservation component 20 and the first fixing post 30, the support plate 11 is used for improving stability of a structure between the heat preservation component 20 and the first fixing post 30, the plate body 10 is used for carrying the heat preservation component 20 and the argon, the heat preservation component 20 is used for transmitting the argon and improving structural strength of the plate body 10, and the heat conductivity of the plate body 10 is reduced due to poor heat conductivity of the argon, so that a heat preservation effect is achieved on the crucible, and casting efficiency of the crucible is improved.
The plate body 10 adopts hollow structure, and then has reduced the volume and the weight of crucible backplate 100, make things convenient for the staff to the equipment and the transportation of crucible backplate 100, and because hollow structure's design can play the effect of bearing the weight of argon gas, and then reach the effect that reduces the heat conductivity, the middle part of plate body 10 is equipped with the arch, protruding also adopts hollow structure, the arch is used for preventing insulation package 20's removal, and then has improved insulation package 20 with the stability of structure between the plate body 10, the side bottom of plate body 10 is equipped with atmospheric pressure hole 12, in this embodiment the quantity of atmospheric pressure hole 12 is three and adopts circular structure, atmospheric pressure hole 12 is used for keeping the stability of atmospheric pressure in the plate body 10, and then has improved the stability of crucible backplate 100 overall structure.
Referring to fig. 2 to 3, the heat insulation assembly 20 includes a plurality of heat insulation boards 21 sequentially connected, each heat insulation board 21 adopts a "U" shaped corrugated structure, and includes a first baffle 22, a second baffle 23, a third baffle 24 and a fourth baffle 25 sequentially connected, where the heights of the first baffle 22, the second baffle 23, the third baffle 24 and the fourth baffle 25 are the same as those of the board body 10, so as to prevent a height difference between the heat insulation assembly 20 and the board body 10, and the first baffle 22 in the next heat insulation board 21 is connected with the fourth baffle 25 in the previous heat insulation board 21 between the adjacent heat insulation boards 21, and the first baffle 22 at the top end of the heat insulation assembly 20 is connected with the supporting board 11, thereby improving the stability of the structure between the supporting board 11 and the heat insulation assembly 20.
The first baffle 22 with the third baffle 24 all with the laminating of the inner wall of plate body 10, the second baffle 23 with all be equipped with a plurality of air vents 26 on the third baffle 24, the air vent 26 is used for making things convenient for the argon gas to be in the plate body 10 with the transmission in the heat preservation subassembly 20, and then when the argon gas enters into in the plate body, has reduced the heat conductivity of plate body 10, thereby right the crucible has played the heat preservation effect the casting in-process of crucible has blockked the heat transfer of limit portion and has arrived the seed crystal, and the seed crystal of corner remains easily, is favorable to blockking the heat dissipation of lateral part in the long brilliant in-process of growing, reduces the long brilliant speed of lateral part, is favorable to mild long brilliant interface, is favorable to the vertical growth of columnar crystal, and then has promoted the quality of whole silicon ingot, has improved the casting efficiency of crucible.
Referring to fig. 4, the first fixing column 30 adopts a cuboid structure, a plurality of gas transmission holes are formed in a side of the first fixing column 30 facing away from the heat insulation component 20, the gas transmission holes are used for conveniently transmitting argon into the first fixing column 30, so that the speed of the argon entering the plate body 10 is increased, the first fixing column 30 faces towards the side of the heat insulation component 20, a plurality of guiding holes 33 are formed in the side of the first fixing column 30, and the guiding holes 33 are used for guiding the argon in the first fixing column 30 into the heat insulation component 20, so that the entering of the argon is further increased, and the crucible is quickly heat-insulated.
In this embodiment, a guiding plate 32 is disposed on a side of the first fixing post 30 facing the heat insulation assembly 20, the guiding plate 32 is perpendicular to the supporting plate 11, the guiding holes 33 are sequentially disposed on the guiding plate 32 along the vertical direction of the first fixing post 30, the radius of the guiding holes 33 is smaller than the radius of the air delivery holes, and the radius of the air delivery holes is smaller than the radius of the air delivery holes 26.
The side surfaces of the first fixing post 30 and the second fixing post 40 are respectively provided with a bolt hole 31 and a fixing bolt 41, the bolt holes 31 and the fixing bolts 41 are matched, and the bolt holes 31 and the fixing bolts 41 are used for facilitating assembly between the crucible guard plates 100 so as to improve stability of structures between adjacent crucible guard plates 100. The structure of the supporting plate 11 is the same as that of the fourth baffle 25, the supporting plate 11 is attached to the side wall of the first fixing column 30, and the supporting plate 11 is used for improving the stability of the structure between the first fixing column 30 and the heat insulation component 20.
The second baffle 23 and the fourth baffle 25 have the same structure, the included angles of the second baffle 23, the fourth baffle 25 and the third baffle 24 are equal, the included angles are larger than 30 ° and smaller than 90 °, in this embodiment, the second baffle 23, the third baffle 24 and the fourth baffle 25 form an isosceles trapezoid structure, so that the structural strength of the plate body 10 is improved, the damage caused by accidental extrusion or collision is prevented, and the service life of the plate body 10 is prolonged.
Referring to fig. 6 to 7, the first fixing post 30 and the second fixing post 40 are respectively provided with an exhaust slot 34 on a side facing the plate body 10, the exhaust slots 34 on the first fixing post 30 and the second fixing post 40 are respectively recessed toward the bolt holes 31 and the fixing bolts 41, the exhaust slots 34 are in a semicircular structure, and a plurality of exhaust holes 341 with circular structures are sequentially provided on the arc bottom surface of the exhaust slots 34, the exhaust holes 341 are used for conveniently exhausting the argon gas in the first fixing post 30 and the second fixing post 40, and then when the crucible protecting plate 100 is used, the argon gas can be rapidly exhausted from the first fixing post 30, the second fixing post 40, the plate body 10 and the heat insulation assembly 20 through the exhaust holes 341.
Referring to fig. 5, a schematic structural diagram of an air guide assembly 35 according to a first embodiment of the present invention is provided, the air guide assembly 35 is disposed in the first fixing column 30, the air guide assembly 35 includes an air pipe 36 with an air inlet connected to the air pipe hole, an air outlet connected to the air pipe hole 33, and a connecting pipe 37 for connecting the air pipe 36 and the air outlet 38, the air guide assembly 35 is used for facilitating rapid filling of argon into the plate body 10 and the heat insulation assembly 20, thereby accelerating the working efficiency of the crucible protecting plate 100, and can rapidly perform a heat insulation effect on the crucible, improve the casting efficiency and quality of the crucible, and rapidly fill argon into the connecting pipe 37 through the design of the air pipe 36, and rapidly convey the argon filled into the input pipe 36 into the plate body 10 and the heat insulation assembly 20 through the air outlet 38, and the fixing column 30 and the plate body 10, and the second plate body 40 and the plate body 10 are integrally welded together by injection molding, and the injection molding method is implemented, and the integral structure is welded together.
According to the embodiment, through the design of the first fixing column 30, the gas transmission hole and the sparse guide hole 33, argon can be conveniently conveyed into the plate body 10 and the heat preservation assembly 20, and then when the argon enters into the plate body 10 and the heat preservation assembly 20, the heat conductivity of the plate body 10 can be effectively reduced, so that the crucible has a heat preservation effect, the heat at the edge is prevented from being transferred to a seed crystal in the casting process of the crucible, the casting efficiency of polycrystalline crystals of the crucible is improved, through the hollow design of the heat preservation assembly 20 and the plate body 10, the cost and the weight of the crucible guard plate 100 are reduced, the effect of conveying and bearing the argon are achieved, the effect of reducing the heat conductivity of the plate body 10 is achieved, through the design of the first baffle 22, the second baffle 23, the third baffle 24 and the fourth baffle 25, the stability of the structure of the plate body 10 is improved, and the nitrogen in the guard plate 100 is further filled through the design of the gas transmission hole 26 in the heat preservation assembly 20.
Referring to fig. 8, a schematic structural diagram of a second fixing column 40a according to a second embodiment of the present invention is provided, and the second embodiment has substantially the same structure as the first embodiment, wherein in this embodiment, an air extraction assembly is disposed on a side of the second fixing column 40a facing the heat preservation assembly 20, the air extraction assembly includes a fan 42 and a motor electrically connected to the fan 42, and the fan 42 is configured to absorb argon in the first fixing column 30 toward the second fixing column 40a, so that when the crucible protecting plate 100 is just started to be used, the filling rate of the argon to the plate body 10 and the heat preservation assembly 20 is increased, and further the working efficiency of the crucible protecting plate 100 is improved.
Through the design of the air extraction assembly in this embodiment, can accelerate argon gas to the plate body 10 with the filling rate of heat preservation subassembly 20, and then improved the work efficiency of crucible backplate 100, and through the design of the air extraction assembly, still can be when using up the crucible backplate 100 can be quick with the plate body 10 with nitrogen gas in the heat preservation subassembly 20 discharges, and then accelerated the collection of crucible backplate 100 has made things convenient for the staff to the end operation of crucible backplate 100.
The above embodiments describe the technical principle of the present invention, and these descriptions are only for explaining the principle of the present invention and should not be construed in any way as limiting the scope of the present invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein, without departing from the spirit and scope of the invention.

Claims (5)

1. The utility model provides a crucible backplate, includes the plate body and locates respectively first fixed column and the second fixed column at plate body both ends, its characterized in that: the plate body adopts a hollow structure, the bottom and the inside of the side edge of the plate body are respectively provided with an air pressure hole and a heat preservation assembly, and a support plate is arranged between the heat preservation assembly and the first fixing column;
the heat preservation assembly comprises a plurality of heat preservation plates which are sequentially connected, each heat preservation plate comprises a first baffle, a second baffle, a third baffle and a fourth baffle which are sequentially connected, the first baffle in the later heat preservation plate is connected with the fourth baffle in the former heat preservation plate between the adjacent heat preservation plates, the first baffle at the top end in the heat preservation assembly is connected with the supporting plate, the first baffle and the third baffle are attached to the inner wall of the plate body, and a plurality of air guide holes are formed in the second baffle and the third baffle;
a plurality of gas transmission holes are formed in one side, facing away from the heat preservation assembly, of the first fixing column, the gas transmission holes are used for transmitting argon into the first fixing column, a plurality of dredging holes are formed in one side, facing towards the heat preservation assembly, of the first fixing column, and the dredging holes are used for dredging the argon in the first fixing column into the heat preservation assembly;
the side surfaces of the first fixing column and the second fixing column are respectively provided with a bolt hole and a fixing bolt, the bolt holes are matched with the fixing bolts, the supporting plate is identical to the fourth baffle in structure, the supporting plate is attached to the side wall of the first fixing column, and the supporting plate is used for improving the stability of the structure between the first fixing column and the heat insulation assembly; the first fixing column and the second fixing column are respectively provided with an exhaust groove on one side facing the plate body, and the exhaust grooves on the first fixing column and the second fixing column are respectively recessed towards the bolt hole and the fixing bolt; the exhaust groove adopts a semicircular structure, and a plurality of exhaust holes with circular structures are sequentially formed in the arc-shaped bottom surface of the exhaust groove, and are used for conveniently exhausting argon in the first fixing column and the second fixing column; the second fixed column faces to one side of the heat preservation component, the air extraction component comprises a fan and a motor electrically connected with the fan, and the fan is used for absorbing argon in the first fixed column towards the second fixed column.
2. The crucible guard of claim 1, wherein: the first fixed column faces to one side of the heat preservation component and is provided with a dredging plate, the dredging plate is perpendicular to the supporting plate, the dredging holes are sequentially formed in the dredging plate along the vertical direction of the first fixed column, the radius of the dredging holes is smaller than that of the air conveying holes, and the radius of the air conveying holes is smaller than that of the air conveying holes.
3. The crucible guard of claim 1, wherein: the second baffle plate and the fourth baffle plate have the same structure, the included angles of the second baffle plate, the fourth baffle plate and the third baffle plate are equal, and the included angle is larger than 30 degrees and smaller than 90 degrees.
4. The crucible guard of claim 1, wherein: the first fixing column is internally provided with an air guide assembly, and the air guide assembly comprises an air conveying pipe with an air inlet connected with the air conveying hole and an exhaust pipe with an air outlet connected with the dredging hole.
5. The crucible guard of claim 1, wherein: the first fixing columns are matched and connected with the plate body, the second fixing columns are matched and connected with the plate body, and the heat preservation assembly is matched and connected with the plate body in an integral injection molding, welding or pasting mode.
CN201710627178.2A 2017-07-28 2017-07-28 Crucible guard board Active CN107338475B (en)

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Application Number Priority Date Filing Date Title
CN201710627178.2A CN107338475B (en) 2017-07-28 2017-07-28 Crucible guard board

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Application Number Priority Date Filing Date Title
CN201710627178.2A CN107338475B (en) 2017-07-28 2017-07-28 Crucible guard board

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CN107338475A CN107338475A (en) 2017-11-10
CN107338475B true CN107338475B (en) 2023-08-22

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090037389A (en) * 2006-07-14 2009-04-15 토요 탄소 가부시키가이샤 Protective sheet for crucible and crucible device using the same
CN202415747U (en) * 2011-12-31 2012-09-05 英利能源（中国）有限公司 Graphite protective plate for ingot furnace
WO2012171307A1 (en) * 2011-06-15 2012-12-20 安阳市凤凰光伏科技有限公司 Device for improving temperature gradient when casting quasi-monocrystalline crystal silicon ingot
CN203373447U (en) * 2013-06-08 2014-01-01 东海晶澳太阳能科技有限公司 Guard board device for seed crystal ingot casting crucible

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090037389A (en) * 2006-07-14 2009-04-15 토요 탄소 가부시키가이샤 Protective sheet for crucible and crucible device using the same
WO2012171307A1 (en) * 2011-06-15 2012-12-20 安阳市凤凰光伏科技有限公司 Device for improving temperature gradient when casting quasi-monocrystalline crystal silicon ingot
CN202415747U (en) * 2011-12-31 2012-09-05 英利能源（中国）有限公司 Graphite protective plate for ingot furnace
CN203373447U (en) * 2013-06-08 2014-01-01 东海晶澳太阳能科技有限公司 Guard board device for seed crystal ingot casting crucible

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Address after: No. 1, Yingbin Avenue, Shangrao Economic and Technological Development Zone, Jiangxi Province 334100

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