CN203420014U - Composite tungsten rod heater for sapphire crystal growth - Google Patents
Composite tungsten rod heater for sapphire crystal growth Download PDFInfo
- Publication number
- CN203420014U CN203420014U CN201320489512.XU CN201320489512U CN203420014U CN 203420014 U CN203420014 U CN 203420014U CN 201320489512 U CN201320489512 U CN 201320489512U CN 203420014 U CN203420014 U CN 203420014U
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- CN
- China
- Prior art keywords
- tungsten
- crystal growth
- sapphire crystal
- tungsten bar
- copper electrode
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Abstract
A composite tungsten rod heater for sapphire crystal growth comprises a copper electrode, tungsten rods, a tungsten plate, fixing nuts and fixing tungsten rings, and is characterized in that the fixing tungsten rings are ring-shaped; the tungsten rods are uniformly arranged on the fixing tungsten rings; the copper electrode is arranged at the upper ends of the tungsten rods; the tungsten plate is arranged at the lower ends of the tungsten rods; the upper ends of the tungsten rods are fixedly connected with the copper electrode through the fixing nuts; the lower ends of the tungsten rods are fixedly connected with the tungsten plate through the fixing nuts. The composite tungsten rod heater has the benefits that the service life is long; the high-temperature property is stable; the temperature field is uniform; the maintenance cost is relatively low.
Description
Technical field
The utility model belongs to crystal processing technique field, says more specifically the compound tungsten bar well heater for sapphire crystal growth using in a kind of crystal growing furnace.
Background technology
At present, the method that the sapphire crystal growth of prior art adopts is generally kyropoulos, what kyropoulos growing sapphire crystal was used is tungsten bar well heater, tungsten bar well heater is that the tungsten bar that is 4～10mm and certain length by diameter is assembled the circular shape heater that forms cage structure by bending, the diameter of cage shape well heater and required tungsten bar number are selected according to a temperature processing condition for kyropoulos, but this cage shape tungsten bar heating appliances has following significantly shortcoming:
1) because the tungsten bar of bending is introduced more stress in the course of processing, make the bottom of well heater easily be out of shape fracture, work-ing life is shorter;
2) high temperature stability performance is bad, and easily distortion causes a temperature inequality, affects quality product;
3) maintenance maintenance cost is higher.
Summary of the invention
In order to address the above problem, the utility model provides a kind of long service life, have stable high-temperature performance, temperature field evenly, compound tungsten bar well heater for the lower-cost sapphire crystal growth of maintenance maintenance, its concrete scheme is: described sapphire crystal growth with compound tungsten bar well heater by copper electrode, tungsten bar, tungsten plate, set screw nut, fixed tungsten ring forms, it is characterized in that fixed tungsten ring is set to annular, tungsten bar is evenly set on fixed tungsten ring, the upper end of tungsten bar arranges copper electrode, the lower end of tungsten bar arranges tungsten plate, the upper end of tungsten bar is fixedly connected with copper electrode by set screw nut, the lower end of tungsten bar is fixedly connected with tungsten plate by set screw nut.
Copper electrode described in the utility model, is characterized in that the inside of copper electrode is connected with water coolant.
Set screw nut described in the utility model, is characterized in that the material of set screw nut adopts a kind of of tungsten or molybdenum.
Fixed tungsten ring described in the utility model, is characterized in that fixed tungsten ring at least arranges 2.
Tungsten plate described in the utility model, is characterized in that the thickness of tungsten plate adopts 3～5mm.
Tungsten bar described in the utility model, is characterized in that the diameter of tungsten bar adopts 4～10mm.
The beneficial effects of the utility model are compound tungsten bar well heater long service life for sapphire crystal growth, have stable high-temperature performance, and evenly, maintenance maintenance cost is lower in temperature field.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model; In accompanying drawing 1:
1. copper electrode, 2. tungsten bar, 3. tungsten plate, 4. set screw nut, 5. fixed tungsten ring.
Embodiment
1 pair of the utility model describes in further detail by reference to the accompanying drawings, so that the public grasps implementation method of the present utility model better, the utility model specific embodiment is: described sapphire crystal growth with compound tungsten bar well heater by copper electrode 1, tungsten bar 2, tungsten plate 3, set screw nut 4, fixed tungsten ring 5 forms, it is characterized in that fixed tungsten ring 5 is set to annular, tungsten bar 2 is evenly set on fixed tungsten ring 5, the upper end of tungsten bar 2 arranges copper electrode 1, the lower end of tungsten bar 2 arranges tungsten plate 3, the upper end of tungsten bar 2 is fixedly connected with copper electrode 1 by set screw nut 4, the lower end of tungsten bar 2 is fixedly connected with tungsten plate 3 by set screw nut 4.
Copper electrode 1 described in the utility model, is characterized in that the inside of copper electrode 1 is connected with water coolant.
Set screw nut 4 described in the utility model, is characterized in that the material of set screw nut 4 adopts a kind of of tungsten or molybdenum.
Fixed tungsten ring 5 described in the utility model, is characterized in that fixed tungsten ring 5 at least arranges 2.
Tungsten plate 3 described in the utility model, is characterized in that the thickness of tungsten plate 3 adopts 3～5mm.
The beneficial effects of the utility model are compound tungsten bar well heater long service life for sapphire crystal growth, have stable high-temperature performance, and evenly, maintenance maintenance cost is lower in temperature field.
Claims (6)
1. compound tungsten bar well heater for sapphire crystal growth, by copper electrode (1), tungsten bar (2), tungsten plate (3), set screw nut (4), fixed tungsten ring (5), formed, it is characterized in that fixed tungsten ring (5) is set to annular, tungsten bar (2) is evenly set on fixed tungsten ring (5), the upper end of tungsten bar (2) arranges copper electrode (1), the lower end of tungsten bar (2) arranges tungsten plate (3), the upper end of tungsten bar (2) is fixedly connected with copper electrode (1) by set screw nut (4), and the lower end of tungsten bar (2) is fixedly connected with tungsten plate (3) by set screw nut (4).
2. compound tungsten bar well heater for sapphire crystal growth according to claim 1, is characterized in that the inside of copper electrode (1) is connected with water coolant.
3. compound tungsten bar well heater for sapphire crystal growth according to claim 1, is characterized in that the material of set screw nut (4) adopts a kind of of tungsten or molybdenum.
4. compound tungsten bar well heater for sapphire crystal growth according to claim 1, is characterized in that fixed tungsten ring (5) at least arranges 2.
5. compound tungsten bar well heater for sapphire crystal growth according to claim 1, is characterized in that the thickness of tungsten plate (3) adopts 3～5mm.
6. compound tungsten bar well heater for sapphire crystal growth according to claim 1, is characterized in that the diameter of tungsten bar (2) adopts 4～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489512.XU CN203420014U (en) | 2013-08-12 | 2013-08-12 | Composite tungsten rod heater for sapphire crystal growth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489512.XU CN203420014U (en) | 2013-08-12 | 2013-08-12 | Composite tungsten rod heater for sapphire crystal growth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420014U true CN203420014U (en) | 2014-02-05 |
Family
ID=50019114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320489512.XU Expired - Fee Related CN203420014U (en) | 2013-08-12 | 2013-08-12 | Composite tungsten rod heater for sapphire crystal growth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420014U (en) |
-
2013
- 2013-08-12 CN CN201320489512.XU patent/CN203420014U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20160812 |