CN202688507U - Upper-lower spliced polycrystalline graphite crucible - Google Patents
Upper-lower spliced polycrystalline graphite crucible Download PDFInfo
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- CN202688507U CN202688507U CN 201220001916 CN201220001916U CN202688507U CN 202688507 U CN202688507 U CN 202688507U CN 201220001916 CN201220001916 CN 201220001916 CN 201220001916 U CN201220001916 U CN 201220001916U CN 202688507 U CN202688507 U CN 202688507U
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- side plate
- crucible
- main body
- graphite
- plate main
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Abstract
The utility model provides an upper-lower spliced polycrystalline graphite crucible which comprises a plurality of graphite side plates, and a graphite base plate; each graphite side plate comprises a side plate main body, upper splicing members, and screws; the side plate main body is connected with the upper splicing members through the screws. By dividing the crucible side plate into the side plate main body and the upper slicing members, the utility model well reduces the specification of raw materials for manufacturing the side plates, and reduces the material cost. The slotted crucible side plate is formed directly by the side plate main body and several splicing members, which simplifies the processing technology of side plate slotting, and solves the problem of crucible side plate discard caused by rupture at the joint of the crucible side plates and the crucible cover plate.
Description
Technical field
The utility model relates to the plumbago crucible technical field, particularly relates to a kind of square polycrystalline ingot furnace plumbago crucible that is applicable to.
Background technology
The production technique of silicon for solar cell mainly contains pulling of silicon single crystal and polycrystalline cast ingot silicon at present, and polycrystalline cast ingot comparatively speaking technique is comparatively simple, is easy to large-scale production, and cost is lower.Polycrystalline cast ingot silicon is the method that adopts directional freeze, its principle is that the silicon stockpile is placed in the quartz crucible, quartz crucible is placed in the plumbago crucible that is spliced into by four blocks of plumbago crucible side plates and plumbago crucible base plate, integral body places thermal field heating and melting silicon material, then control longitudinally the temperature difference and cool off gradually, form columnar silicon crystalline structure from bottom to top.
Graphite material is widely used in the polycrystalline ingot furnace thermal field owing to have the advantages such as excellent thermostability, processibility, intensity price.In the existing polycrystalline silicon ingot or purifying furnace, plumbago crucible is formed by connecting by four blocks of complete plumbago crucible side plates, as shown in Figure 1, owing to all need slot in every side plate top, apparent size is large in addition, cause waste of material, cost is higher, in use sometimes also scraps because of crucible side plate and the crucible cover plate connection portion crucible side plate that causes that breaks.
Summary of the invention
The purpose of this utility model is to improve the problem of plumbago crucible side plate waste of material, improves the utilization ratio of graphite material, reduces cost, solves because of crucible side plate and the crucible cover plate connection portion crucible side plate that causes that breaks to scrap problem.
The utility model proposes a kind of up and down polycrystalline graphite crucible of splicing, comprise polylith graphite side and a graphite base plate, described graphite side comprises side plate main body, top splice and screw, and described side plate main body is connected by described screw with described top splice.
Wherein, described side plate main body and splice are rectangular parallelepiped, and thickness is 20-50mm, and thickness equates.
Wherein, described side plate main body is connected with splice and need be processed threaded hole for connecting.
Wherein, described splice and screw number are decided by actual demand.
The utility model has reduced the specifications of raw materials for the manufacture of side plate effectively by the crucible side plate being divided into side plate main body and top splice two portions, has reduced material cost.Directly form the crucible side plate of fluting by side plate main body and several splices, simplified the complete processing of side plate fluting.For the crucible side plate end of life problem of breaking and causing because of crucible side plate and crucible cover plate connection portion, the utility model only need be changed the top splice and can solve.
Description of drawings
Fig. 1 is existing plumbago crucible lateral plate structure synoptic diagram;
Fig. 2 is the utility model plumbago crucible lateral plate structure synoptic diagram;
Fig. 3 is the utility model plumbago crucible side plate vertical view.
Embodiment
Shown in Fig. 2 and 3, the up and down polycrystalline graphite crucible of splicing of the present utility model comprises polylith graphite side and a graphite base plate.Graphite side comprises side plate main body 1, top splice 2 and screw 3, and described side plate main body 1 is connected by described screw 3 with described top splice 2.Main body side plate 1 and splice 2 are rectangular parallelepiped, adopt the isostatic pressing formed graphite material, and wall thickness is 20-50mm.Screw adopts the C/C matrix material, and the quantity of splice and screw is decided by actual demand, and side plate main body and splice are connected into the complete crucible side plate of fluting by screw.Splice has two kinds, and a kind of is the splice at two ends, and the centre does not have screw-threaded counterbore, and quantity is 2.Every splice is made a call to 2 tapped through holes, is connected with the main body side plate with 2 screws, adopts sunk screw, guarantees that side plate top is connected unaffected with cover plate.A kind of is the splice of side plate middle portion, and a screw-threaded counterbore that is connected with crucible cover plate 4 is opened in the centre.It is about 15% that material of main part width dimensions of the present utility model reduces, and can prevent that side plate top and the crucible cover plate junction side plate monoblock that causes of breaking from scrapping.
Described in this specification sheets is preferred embodiment of the present invention, and above embodiment is only in order to illustrate technical scheme of the present invention but not limitation of the present invention.All those skilled in the art all should be within the scope of the present invention under this invention's idea by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (3)
1. a polycrystalline graphite crucible that splices up and down comprises polylith graphite side and a graphite base plate, it is characterized in that described graphite side comprises side plate main body, top splice and screw, and described side plate main body is connected by described screw with described top splice.
2. polycrystalline graphite crucible as claimed in claim 1 is characterized in that described side plate main body and splice are rectangular parallelepiped, and thickness is 20-50mm, and thickness equates.
3. polycrystalline graphite crucible as claimed in claim 1 is characterized in that described side plate main body is connected with splice need process threaded hole for connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220001916 CN202688507U (en) | 2012-01-05 | 2012-01-05 | Upper-lower spliced polycrystalline graphite crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220001916 CN202688507U (en) | 2012-01-05 | 2012-01-05 | Upper-lower spliced polycrystalline graphite crucible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688507U true CN202688507U (en) | 2013-01-23 |
Family
ID=47544154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220001916 Expired - Lifetime CN202688507U (en) | 2012-01-05 | 2012-01-05 | Upper-lower spliced polycrystalline graphite crucible |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482148A (en) * | 2019-12-02 | 2020-08-04 | 中科钢研节能科技有限公司 | Graphite crucible and silicon carbide synthesis method |
| US11384451B2 (en) | 2018-01-24 | 2022-07-12 | Anhui Weixin Changjiang Semiconductor Material Co., Ltd. | Crucible for crystal growth as well as method for releasing thermal stress in silicon carbide crystal |
-
2012
- 2012-01-05 CN CN 201220001916 patent/CN202688507U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11384451B2 (en) | 2018-01-24 | 2022-07-12 | Anhui Weixin Changjiang Semiconductor Material Co., Ltd. | Crucible for crystal growth as well as method for releasing thermal stress in silicon carbide crystal |
| CN111482148A (en) * | 2019-12-02 | 2020-08-04 | 中科钢研节能科技有限公司 | Graphite crucible and silicon carbide synthesis method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |