CN202881444U - Corrugated graphite three-segment crucible - Google Patents
Corrugated graphite three-segment crucible Download PDFInfo
- Publication number
- CN202881444U CN202881444U CN 201220577762 CN201220577762U CN202881444U CN 202881444 U CN202881444 U CN 202881444U CN 201220577762 CN201220577762 CN 201220577762 CN 201220577762 U CN201220577762 U CN 201220577762U CN 202881444 U CN202881444 U CN 202881444U
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- Prior art keywords
- crucible
- graphite
- groove
- ripple
- crucible body
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 44
- 239000010439 graphite Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 239000013078 crystal Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000010453 quartz Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The utility model discloses a corrugated graphite three-segment crucible. The corrugated graphite three-segment crucible comprises three crucible bodies which can define a graphite crucible having an opening, wherein the outer surface of at least one of the three crucible bodies is provided with bulges or/and grooves. The outer surface of the crucible body is provide with the bulges or/and grooves, so that the contact surface area between the outer surface of the crucible body and the outside is increased, i.e. the heating surface area of the crucible body is increased, thereby raising the heating speed of the crucible body and improving the heat absorption efficiency. Thus, the material melting time in the crystal pulling process is greatly shortened, and the process cycle is shortened.
Description
Technical field
The utility model relates to the manufacture of solar cells technical field, particularly a kind of ripple graphite three lobe crucibles.
Background technology
Graphite is being played the part of very important role in modern science and technology industry, at the CZ(CZOChralski of semicon industry) indispensable material especially in the method czochralski silicon monocrystal technique.The CZ single crystal growing furnace is that the heating that a kind of semi-conductor producer produces czochralski silicon monocrystal generates stove, is a kind of in rare gas element (nitrogen, helium are main) environment, with graphite heater the polycrystalline materials such as polysilicon is melted, with the equipment of Grown by CZ Method dislocation-free monocrystalline.
Wherein, the graphite crucible is to be placed on the vessel that hold quartz crucible in the single crystal growing furnace.In the process of manufacture order crystal silicon, the quartz crucible of placing the silicon material is heated the silicon material is melted, and the heat that quartz crucible is received is the heat that graphite three lobe crucibles absorb from well heater, and namely quartz crucible passes through the graphite crucible from the well heater absorbing heat.
At present, be graphite three lobe crucibles for the graphite crucible that holds quartz crucible, greatly facilitate picking and placeing quartz crucible.Traditionally, when producing graphite three lobe crucible, adopt machining, to improve the production efficiency of graphite three lobe crucibles.But the outside surface of the graphite three lobe crucibles after the machining is more smooth, so that endotherm area is the smooth outer surface of graphite three lobe crucibles, namely heating surface area is limited, is unfavorable for reaching fast the temperature of melt.
Therefore, how providing a kind of graphite three lobe crucibles, increase exterior surface area, to increase heating surface area, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of ripple graphite three lobe crucibles, increases exterior surface area, to increase heating surface area.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of ripple graphite three lobe crucibles comprise that three can surround a crucible body with graphite crucible of an opening, wherein, have at least the outside surface of a crucible body to be provided with projection or/and groove forms in three described crucible bodies.
Preferably, in the above-mentioned ripple graphite three lobe crucibles, the outside surface of three described crucible bodies is provided with described projection or groove.
Preferably, in the above-mentioned ripple graphite three lobe crucibles, described projection or groove are a plurality of, and all evenly distribute along the outside surface of described crucible body is vertical.
Preferably, in the above-mentioned ripple graphite three lobe crucibles, the number of described groove or described projection is 26.
Preferably, in the above-mentioned ripple graphite three lobe crucibles, described groove is arc groove.
Preferably, in the above-mentioned ripple graphite three lobe crucibles, the groove depth of described groove is 1mm-2mm.
Can find out from above-mentioned technical scheme, the utility model provides a kind of ripple graphite three lobe crucibles, comprise that three can surround a crucible body with graphite crucible of an opening, wherein, have at least the outside surface of a crucible body to be provided with projection or/and groove in three above-mentioned crucible bodies.Projection is set or/and groove by the outside surface at the crucible body, can be so that the outside surface of crucible body and the extraneous surface-area increase that contacts, namely increased the heating surface area of crucible body, thereby improved the speed that the crucible body is heated, improved heat absorption efficiency, and then in the crystal pulling process, shortened greatly the material time, shortened process cycle.
Description of drawings
The structural representation of the crucible body of the ripple graphite three lobe crucibles that Fig. 1 provides for the utility model embodiment.
Embodiment
The utility model core provides a kind of ripple graphite three lobe crucibles, increases exterior surface area, to increase heating surface area.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with drawings and embodiments.
Please refer to Fig. 1, the utility model discloses a kind of ripple graphite three lobe crucibles, comprise that three can surround a crucible body 1 with graphite crucible of an opening, wherein, have at least the outside surface of a crucible body 1 to be provided with projection or/and groove 2 in three crucible bodies 1.
Projection is set or/and groove 2 by the outside surface at crucible body 1, can be so that the outside surface of crucible body 1 and the extraneous surface-area increase that contacts, namely increased the heating surface area of crucible body 1, thereby improved the speed that crucible body 1 is heated, improved heat absorption efficiency, and then in the crystal pulling process, shortened greatly the material time, shortened process cycle.
In order to guarantee to be placed on being heated evenly of quartz crucible in the ripple graphite three lobe crucibles, the outside surface with three crucible bodies 1 in the present embodiment all is provided with projection or/and groove 2.It will be appreciated by persons skilled in the art that in actual production, can according to different processing conditionss with become to produce cost and select different working methods.Preferably, increase by a procedure on the basis of traditional graphite three lobe crucibles processing, namely the outside surface of ganoid graphite three lobe crucibles vertically mills out groove 2 at its outside surface by gearcutter along crucible body 1 outside.In the situation of not considering cost, can at the outside surface of crucible body 1 projection be set by the mode of building, and then for further processing to crucible body 1.
For the hardness that guarantees ripple graphite three lobe crucibles with further increase its heating surface area, in the present embodiment, projection or groove 2 all are set to a plurality of, and all evenly distribute along the outside surface of crucible body 1.In actual production, projection can only be set or groove 2 only is set, or groove 2 and projection are set simultaneously, with further enlarge active surface.When arranging, but arranged transversely also can vertically arrange, present embodiment not to concrete setting party to doing restriction, as long as be evenly arranged.
In the specific embodiment, according to the size of the crucible body 1 of ripple graphite three lobe crucibles and the time of melt, groove 2 or projection are set to 26 in the present embodiment, and along vertical layout of crucible body 1.It will be appreciated by persons skilled in the art that the groove 2 that arranges on the crucible body 1 of different melt time and different size or the number of projection can change accordingly, and all in protection domain.
Preferably, the aesthetic property for the ease of after the simultaneously assurance processing of processing is set to arc groove with groove 2 in the present embodiment, also groove 2 can be set to square groove in operating process.
In the preferred embodiment, the groove depth of groove 2 is set to 1-2mm, particularly, can be 1mm, during operation, increase 1mm on the wall thickness with original three lobe crucibles first, process three lobe crucibles according to traditional complete processing again, adopt at last gearcutter, on each crucible body 1, all mill out the dark arc groove of 1mm.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. ripple graphite three lobe crucibles comprise that three can surround a crucible body with graphite crucible of an opening, it is characterized in that, have at least the outside surface of a crucible body to be provided with projection or/and groove forms in three described crucible bodies.
2. ripple graphite three lobe crucibles according to claim 1 is characterized in that the outside surface of three described crucible bodies is provided with described projection or/and groove.
3. ripple graphite three lobe crucibles according to claim 1 is characterized in that described projection or groove are a plurality of, and all evenly distribute along the outside surface of described crucible body.
4. ripple graphite three lobe crucibles according to claim 3 is characterized in that the number of described groove or described projection is 26.
5. ripple graphite three lobe crucibles according to claim 1 is characterized in that described groove is arc groove.
6. ripple graphite three lobe crucibles according to claim 5 is characterized in that the groove depth of described groove is 1mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577762 CN202881444U (en) | 2012-11-05 | 2012-11-05 | Corrugated graphite three-segment crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577762 CN202881444U (en) | 2012-11-05 | 2012-11-05 | Corrugated graphite three-segment crucible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202881444U true CN202881444U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220577762 Expired - Fee Related CN202881444U (en) | 2012-11-05 | 2012-11-05 | Corrugated graphite three-segment crucible |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202881444U (en) |
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2012
- 2012-11-05 CN CN 201220577762 patent/CN202881444U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20151105 |
|
| EXPY | Termination of patent right or utility model |