CN101760783A - Crucible cover plate capable of adjusting temperature gradient of solid-liquid interface - Google Patents
Crucible cover plate capable of adjusting temperature gradient of solid-liquid interface Download PDFInfo
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- CN101760783A CN101760783A CN200910196353A CN200910196353A CN101760783A CN 101760783 A CN101760783 A CN 101760783A CN 200910196353 A CN200910196353 A CN 200910196353A CN 200910196353 A CN200910196353 A CN 200910196353A CN 101760783 A CN101760783 A CN 101760783A
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- cover plate
- crucible cover
- solid
- liquid interface
- temperature gradient
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Abstract
The invention provides a crucible cover plate capable of adjusting the temperature gradient of a solid-liquid interface, which relates to a crystal growth thermal field structure and is mainly used as the crucible cover plate on a crucible for crystal growth. The crucible cover plate is characterized in that: the inner wall of the crucible cover plate is extended outwards along a central point; and the toroidal surfaces of each concentric circular ring have different thicknesses. The crucible cover plate has the advantages that: the inner sides of the crucible cover plate have the different thicknesses so as to change thermal radiation, thermal convection and thermal conduction, make the temperature distribution of the solid-liquid interface meet technical requirements and improve sizes and quality of crystals.
Description
Technical field
The present invention relates to the crystal growth thermal field structure, the particularly a kind of crucible cover plate that can regulate temperature gradient of solid-liquid interface.
Background technology
In crystal growth, the control of thermograde is very important; The thermograde of solid-liquid interface grows the key of gem-quality crystal material especially in the control crucible.The growth method that different crystalline materials is different is to the requirement difference of solid-liquid interface; The gradient of solid-liquid interface becomes the gordian technique that grows gem-quality crystal, and the crucible cover plate design of traditional uniform thickness perforate can not provide suitable temperature (referring to Fig. 1 and Fig. 2).
Summary of the invention
Technical problem solved by the invention is to provide a kind of and regulates the gradient of solid-liquid interface by changing crucible cover plate, and obtain needed high temperature of crystal growth and temperature distribution, thereby improved a kind of crucible cover plate that can regulate temperature gradient of solid-liquid interface of crystalline size and quality.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of crucible cover plate that can regulate temperature gradient of solid-liquid interface is mainly used in crystal growth with the crucible cover plate on the crucible, and it is characterized in that: described crucible cover plate inwall is stretching out along central spot, and the anchor ring of each donut is shaped on different thickness.
The material of described crucible cover plate is refractory metal or alloy, or the high-melting-point pottery, or graphite material, or combination arbitrarily in the above material.
Described central point line between the edge is linear, non-linear, sphere, aspheric surface, ellipse, waviness except that uniform thickness.
The invention has the beneficial effects as follows the crucible cover plate medial surface is made non-uniform thickness, changed thermal radiation, thermal convection and thermal conduction, make the temperature distribution of solid-liquid interface arrive the requirement of technology, improved crystalline size and quality.
Description of drawings
Fig. 1 is conventional crucibles and crucible cover plate structural representation;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a kind of embodiment synoptic diagram of crucible cover plate of the present invention;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the another kind of embodiment synoptic diagram of crucible cover plate of the present invention;
Fig. 6 is the vertical view of Fig. 5.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Shown in Fig. 3,4, in conjunction with Fig. 1 as can be known, a kind of crucible cover plate that can regulate temperature gradient of solid-liquid interface, be mainly used in the crucible cover plate 2 on the crystal growth usefulness crucible 1, crucible cover plate 2 is by refractory metal or alloy, or the high-melting-point pottery, or graphite material, or combination is arbitrarily made in the above material.Stretch out in the central spot along crucible cover plate 2 inwalls, the anchor ring of each donut is shaped on different thickness, forms stepped 21 table top.
Shown in Fig. 5,6, stretch out in central spot along crucible cover plate 2 inwalls, the anchor ring of donut is shaped on different thickness, forms the table top of rectilinearity 22.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. the crucible cover plate that can regulate temperature gradient of solid-liquid interface, be mainly used in crystal growth with the crucible cover plate on the crucible, it is characterized in that: described crucible cover plate inwall is stretching out along central spot, and the anchor ring of each donut is shaped on different thickness.
2. according to the described crucible cover plate that can regulate temperature gradient of solid-liquid interface of claim 1, it is characterized in that: the material of described crucible cover plate is refractory metal or alloy, or the high-melting-point pottery, or graphite material, or combination arbitrarily in the above material.
3. according to the described crucible cover plate that can regulate temperature gradient of solid-liquid interface of claim 1, it is characterized in that: described central point is linear, non-linear, sphere, aspheric surface, ellipse, waviness to line between the edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910196353A CN101760783A (en) | 2009-09-25 | 2009-09-25 | Crucible cover plate capable of adjusting temperature gradient of solid-liquid interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910196353A CN101760783A (en) | 2009-09-25 | 2009-09-25 | Crucible cover plate capable of adjusting temperature gradient of solid-liquid interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101760783A true CN101760783A (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910196353A Pending CN101760783A (en) | 2009-09-25 | 2009-09-25 | Crucible cover plate capable of adjusting temperature gradient of solid-liquid interface |
Country Status (1)
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| CN (1) | CN101760783A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978685A (en) * | 2012-12-04 | 2013-03-20 | 苏州工业园区杰士通真空技术有限公司 | Novel crucible cover of sapphire crystal growing furnace |
| CN102995114A (en) * | 2012-11-09 | 2013-03-27 | 哈尔滨奥瑞德蓝宝石制品有限公司 | Crucible cover of big-size sapphire single crystal growth furnace |
| CN103484931A (en) * | 2013-08-07 | 2014-01-01 | 福建鑫晶精密刚玉科技有限公司 | Cold crucible cover for top seed crystal temperature gradient method |
| CN106048717A (en) * | 2016-07-20 | 2016-10-26 | 湖南红太阳光电科技有限公司 | Crucible cover plate for polycrystalline silicon ingot casting |
| CN106702478A (en) * | 2017-02-21 | 2017-05-24 | 洛阳金诺光电子材料有限公司 | Mold guiding plate for growing sapphire crystals by virtue of EFG method |
-
2009
- 2009-09-25 CN CN200910196353A patent/CN101760783A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995114A (en) * | 2012-11-09 | 2013-03-27 | 哈尔滨奥瑞德蓝宝石制品有限公司 | Crucible cover of big-size sapphire single crystal growth furnace |
| CN102995114B (en) * | 2012-11-09 | 2016-01-06 | 哈尔滨奥瑞德蓝宝石制品有限公司 | Crucible cover of big-size sapphire single crystal growth furnace |
| CN102978685A (en) * | 2012-12-04 | 2013-03-20 | 苏州工业园区杰士通真空技术有限公司 | Novel crucible cover of sapphire crystal growing furnace |
| CN103484931A (en) * | 2013-08-07 | 2014-01-01 | 福建鑫晶精密刚玉科技有限公司 | Cold crucible cover for top seed crystal temperature gradient method |
| CN106048717A (en) * | 2016-07-20 | 2016-10-26 | 湖南红太阳光电科技有限公司 | Crucible cover plate for polycrystalline silicon ingot casting |
| CN106048717B (en) * | 2016-07-20 | 2019-07-26 | 湖南红太阳光电科技有限公司 | A kind of crucible used for polycrystalline silicon ingot casting cover board |
| CN106702478A (en) * | 2017-02-21 | 2017-05-24 | 洛阳金诺光电子材料有限公司 | Mold guiding plate for growing sapphire crystals by virtue of EFG method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100630 |