CN204111916U - A kind of self-regulating seed rod structure - Google Patents
A kind of self-regulating seed rod structure Download PDFInfo
- Publication number
- CN204111916U CN204111916U CN201420592497.6U CN201420592497U CN204111916U CN 204111916 U CN204111916 U CN 204111916U CN 201420592497 U CN201420592497 U CN 201420592497U CN 204111916 U CN204111916 U CN 204111916U
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- seed rod
- arranges
- self
- lower seed
- lead screw
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Abstract
The utility model discloses a kind of self-regulating seed rod structure, seed rod (1) and lower seed rod (5) are set, the end of described upper seed rod (1) arranges lead screw (2), the top of described lower seed rod (5) arranges bulb (4), described bulb (4) arranges nut (3), described nut (3), is arranged on described upper seed rod (1) by described lead screw (2), and therefore described lower seed rod (5) can freely swing.Described upper seed rod (1) is stainless steel, and described lower seed rod (5) is molybdenum system.Described lower seed rod (5) is 1/5 of described upper seed rod (1) length, and the lower seed rod (5) described in during crystal growth is in crystal furnace.The end of described lower seed rod (5) arranges lead screw (6), for installing seed chuck.The lower seed rod that the utility model employs molybdenum had both been free to pass in and out body of heater, automatically can regulate again vertical, ensure the consistent of crystal growth direction, reduce the time of horizontal adjustment.
Description
Technical field
The utility model relates to kyropoulos sapphire crystal and manufactures field, particularly relates to a kind of self-regulating seed rod structure, is applicable to other similar field simultaneously.
Background technology
Sapphire is also known as white stone, that hardness is only second to adamantine crystalline material in the world, owing to having excellent physics, machinery, chemistry and infrared light transmission performance, it is the material that the fields such as microelectronics, aerospace, military project are badly in need of always, especially optical grade large-size sapphire material, because it has stable performance, the huge market demand, comprehensive utilization ratio and added value of product high, become in recent years research and development and industrialization focus both at home and abroad.
The general process of sapphire crystal manufacture is the seed crystal and melt contacts of catching a cold one, if the temperature at interface is lower than zero pour, then seed crystal starts growth, constantly grow up to make crystal, just need the temperature reducing melt gradually, simultaneously rotating crystal, to improve the temperature distribution of melt.Also slowly (or stage by stage) can carry crystal, to expand radiating surface.Crystal does not contact with sidewall of crucible in process of growth or at the end of growth, this greatly reduces the stress of crystal.But, when crystal and remaining melt depart from, usually larger thermal shocking can be produced.Pyrosol top-seeded solution growth conventional is at present improvement and the development of this kyropoulos.
In sapphire crystal manufacturing processed, seed rod is very important parts, and its structure has important impact to the seeding process in manufacturing processed and process of growth.Rub for not producing with other positions, the seed rod with high weighing precision is all generally be suspended on bellows core, need the adjustment at every turn carrying out concentricity between the standby period of crystal growth, otherwise the accuracy that excessive friction can affect seed rod stability and weigh.But high temperature during crystal growth and larger weight can make seed rod be out of shape, so be difficult to ensure that process of growth does not rub.The present invention will provide a kind of seed rod structure to solve the problem, thus reach and reduce the setup time beneficial outcomes of raising the efficiency.
Summary of the invention
(1) technical problem that will solve
Main purpose of the present invention is to provide a kind of self-regulating seed rod structure, is divided into upper and lower two parts at seed rod, top and weighing system direct-connected, lower suspension, in the bottom on top, is positioned at below corrugated tube.Such top and corrugated tube distance will keep constant, also can not produce friction even if do not regulate, and lower suspension formula connects necessarily vertical and body of heater, and can not produce with furnace interior part and rub, bottom is that resistant to elevated temperatures Mo also can not produce larger distortion.
(2) technical scheme
For achieving the above object, the invention provides a kind of self-regulating seed rod structure, seed rod 1 and lower seed rod 5 are set, the end of described upper seed rod 1 arranges lead screw 2, the top of described lower seed rod 5 arranges bulb 4, and described bulb 4 arranges nut 3, described nut 3, be arranged on described upper seed rod 1 by described lead screw 2, therefore described lower seed rod 5 can freely swing.Described upper seed rod 1 is stainless steel, and described lower seed rod 5 is molybdenum system.Described lower seed rod 5 is 1/5 of described upper seed rod 1 length, and the lower seed rod 5 described in during crystal growth is in crystal furnace.The end of described lower seed rod 5 arranges lead screw 6, for installing seed chuck.The lower seed rod that the utility model employs molybdenum had both been free to pass in and out body of heater, automatically can regulate again vertical, ensure the consistent of crystal growth direction, reduce the time of horizontal adjustment.
(3) beneficial effect
As can be seen from technique scheme, the present invention has following beneficial effect:
1, self-regulating seed rod structure provided by the invention, seed rod does not need to regulate substantially, can save a large amount of time costs.
2, self-regulating seed rod structure provided by the invention, also can not produce moderate finite deformation in high temperature environments, and can not produce any friction thus affect the stability of seeding process, can guarantee the reliability of seeding process.
Accompanying drawing explanation
Fig. 1 is the structural representation of crystal furnace;
Fig. 2 is the structural representation of self-regulating seed rod.
Embodiment
Below in conjunction with specific embodiment, the utility model is further expanded description, but it is pointed out that the utility model structure required for protection is not limited to the concrete structure in embodiment and Figure of description.For other structure formations that those of ordinary skill in the art can know by inference, also belong within the present invention's scope required for protection.
See also Fig. 1, Fig. 2, a kind of self-regulating seed rod structure, arranges seed rod 1 and lower seed rod 5.Described upper seed rod 1 and lower seed rod 5 are for installing the seed crystal of growing crystal, and pulling growth sapphire crystal out.
The end of described upper seed rod 1 arranges lead screw 2, the top of described lower seed rod 5 arranges bulb 4, described bulb 4 arranges nut 3, described nut 3, be arranged on described upper seed rod 1 by described lead screw 2, therefore described lower seed rod 5 can freely swing, and under static state remains vertically downward.
Described lower seed rod 5 is 1/5 of described upper seed rod 1 length, and the lower seed rod 5 described in during crystal growth is in crystal furnace 7.And described upper seed rod 1 is stainless steel, described lower seed rod 5 is molybdenum system, can ensure that described lower seed rod 5 can bear the high temperature more than 2000 degree like this.
The end of described lower seed rod 5 arranges lead screw 6, and for installing seed chuck, described seed chuck can be used for installing seed crystal.。
In this patent working, do not regulate seed rod to carry out 10 stove sapphire growth, result shows that in long brilliant process, weighing system is stablized, the inaccurate phenomenon of weighing that not finding rubs causes, and shove charge efficiency improves 10%, and crystal yield rate is improved.
Claims (4)
1. a self-regulating seed rod structure, seed rod (1) and lower seed rod (5) are set, it is characterized in that: the end of described upper seed rod (1) arranges lead screw (2), the top of described lower seed rod (5) arranges bulb (4), described bulb (4) arranges nut (3), described nut (3), is arranged on described upper seed rod (1) by described lead screw (2), and therefore described lower seed rod (5) can freely swing.
2. self-regulating seed rod structure as claimed in claim 1, is characterized in that: described upper seed rod (1) is stainless steel, and described lower seed rod (5) is molybdenum system.
3. self-regulating seed rod structure as claimed in claim 1, is characterized in that: described lower seed rod (5) is 1/5 of described upper seed rod (1) length, and the lower seed rod (5) described in during crystal growth is in crystal furnace.
4. self-regulating seed rod structure as claimed in claim 1, is characterized in that: the end of described lower seed rod (5) arranges lead screw (6), for installing seed chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592497.6U CN204111916U (en) | 2014-10-14 | 2014-10-14 | A kind of self-regulating seed rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592497.6U CN204111916U (en) | 2014-10-14 | 2014-10-14 | A kind of self-regulating seed rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204111916U true CN204111916U (en) | 2015-01-21 |
Family
ID=52329249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420592497.6U Expired - Fee Related CN204111916U (en) | 2014-10-14 | 2014-10-14 | A kind of self-regulating seed rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204111916U (en) |
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2014
- 2014-10-14 CN CN201420592497.6U patent/CN204111916U/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: 20150121 Termination date: 20151014 |
|
| EXPY | Termination of patent right or utility model |