CN201567387U - Silicon nitride crucible for solar battery - Google Patents
Silicon nitride crucible for solar battery Download PDFInfo
- Publication number
- CN201567387U CN201567387U CN2009202560125U CN200920256012U CN201567387U CN 201567387 U CN201567387 U CN 201567387U CN 2009202560125 U CN2009202560125 U CN 2009202560125U CN 200920256012 U CN200920256012 U CN 200920256012U CN 201567387 U CN201567387 U CN 201567387U
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- crucible
- silicon nitride
- solar battery
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Abstract
The utility model relates to a silicon nitride crucible for a solar battery. The proportion by weight of the contained silicon nitride is 70-98 percent, and the porosity is smaller than 10 percent. The crucible is a slot body with an open top part and a circular cross section, and the crucible is in a structure which is molded in one body by cold isostatic pressing or casting, or the crucible is in an assembling structure that the bottom part is fixed on a crucible body by ceramic pin bolts. As the crucible is made of high-density silicon nitride, the high-density silicon nitride does not react with liquid silicon at high temperature, and the crucible can be used repeatedly and can prevent high-temperature liquid silicon from infiltration. The detachable crucible can be convenient to demold, the damage to the crucible can be prevented in the demolding process, the using life of the crucible is prolonged, and the crucible can be used for at least 50 times.
Description
Technical field
The utility model relates to a kind of used for solar batteries silicon nitride crucible, belongs to the field of manufacture of solar cells equipment.
Background technology
At present, it is main body material that pulling single crystal silicon adopts quartz crucible, and quartz material can react with liquid-state silicon under the high temperature, causes sticking crucible phenomenon, can't realize that crucible repeatedly uses.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple in structure, can realize reusable used for solar batteries silicon nitride crucible.
For solving the problems of the technologies described above, the utility model provides a kind of used for solar batteries silicon nitride crucible, is characterized in: the weight ratio of institute's silicon nitride comprising is 70-98% and void content less than 10% repeated usefulness crucible is that the cross section of open-top is circular cell body.
Further, described crucible is the isostatic cool pressing or the integrated structure of casting.
The utlity model has positive effect: (1) fire-tube type preheating of air of the present utility model burner used for solar batteries silicon nitride crucible, owing to constitute by the silicon nitride material of high-compactness (weight ratio of institute's silicon nitride comprising is that 70-98% and void content are less than 10%), silicon nitride that at high temperature should the height densification with the liquid-state silicon reaction, therefore crucible can be reused.(2) void content of crucible material makes material not have the pore of connection less than 10%, can stop the infiltration of high-temperature liquid state silicon.(3) detachable crucible can be conveniently stripped, prevents the infringement of knockout course to crucible, to improve the work-ing life of crucible, can use at least 50 times.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the cross-sectional view of the used for solar batteries silicon nitride crucible among the embodiment.
Embodiment
See Fig. 1, the used for solar batteries silicon nitride crucible of present embodiment, the weight ratio of institute's silicon nitride comprising be 70-98% and void content less than 10%, reuse realizing.The production technique of this crucible is followed successively by: batch mixing, moulding, gas pressure sintering and processing.Crucible is that the cross section of open-top is circle or quadrate cell body, and crucible is the isostatic cool pressing or the integrated structure of casting.In other embodiments, crucible can be for being suitable for the crucible of employed Any shape in the drawing of polysilicon solar battery casting ingot and silicon single crystal silicon rod.
If crucible is a cross section is circular cell body, then it highly is 204mm, and diameter is 204mm.
The foregoing description only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.
Claims (2)
1. used for solar batteries silicon nitride crucible is characterized in that: void content is that the cross section of open-top is circular cell body less than 10% repeated usefulness crucible.
2. used for solar batteries silicon nitride crucible according to claim 1 is characterized in that: described crucible is the isostatic cool pressing or the integrated structure of casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202560125U CN201567387U (en) | 2009-12-01 | 2009-12-01 | Silicon nitride crucible for solar battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202560125U CN201567387U (en) | 2009-12-01 | 2009-12-01 | Silicon nitride crucible for solar battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201567387U true CN201567387U (en) | 2010-09-01 |
Family
ID=42659671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202560125U Expired - Lifetime CN201567387U (en) | 2009-12-01 | 2009-12-01 | Silicon nitride crucible for solar battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201567387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298983A (en) * | 2010-12-22 | 2013-09-11 | 施托伊勒太阳能有限公司 | Crucibles |
-
2009
- 2009-12-01 CN CN2009202560125U patent/CN201567387U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298983A (en) * | 2010-12-22 | 2013-09-11 | 施托伊勒太阳能有限公司 | Crucibles |
| CN103298983B (en) * | 2010-12-22 | 2016-03-16 | 施托伊勒太阳能有限公司 | Crucible |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU JINSHENG CERAMIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANGSU HUASHENG FINE CERAMIC SCI. + TECH. CO., LTD. Effective date: 20140519 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140519 Address after: 213000, No. 1, Hua Sheng Road, Tang Zhen Town, Yao Town, Changzhou City, Jiangsu, Jintan Patentee after: JIANGSU JINSHENG CERAMIC TECHNOLOGY CO., LTD. Address before: 213000, No. 1, Miss Xiang Road, Jintan Economic Development Zone, Jiangsu, China Patentee before: Huasheng Fine Ceramic Science-Technolgoy Co., Ltd., Jiangsu |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |