CN204097594U - For the reducing tungsten bar well heater of sapphire single-crystal furnace - Google Patents
For the reducing tungsten bar well heater of sapphire single-crystal furnace Download PDFInfo
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- CN204097594U CN204097594U CN201420507793.1U CN201420507793U CN204097594U CN 204097594 U CN204097594 U CN 204097594U CN 201420507793 U CN201420507793 U CN 201420507793U CN 204097594 U CN204097594 U CN 204097594U
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Abstract
The utility model discloses a kind of reducing tungsten bar well heater for sapphire single-crystal furnace, it is characterized in that: well heater comprise arc positive and negative electrode battery lead plate, conflux tungsten ring, positive electrode gate and negative electrode grid, and four equally distributed electrode pawls, wherein, positive and negative electrode grid are all containing one group of reducing tungsten bar, every root reducing tungsten bar in one group of reducing tungsten bar at least comprises the tungsten bar of two joint different diameters, the reducing tungsten bar joint portion of different diameter is connected smoothly by the frustum mated with bar footpath, two ends; The positive and negative electrode battery lead plate of described arc is respectively equipped with an electrode pawl, successively alternately, one end of positive and negative electrode grid all connects with tungsten boxing of confluxing positive and negative electrode grid, and the other end is corresponding with the positive and negative electrode battery lead plate of arc respectively to be welded; The curved surface of positive and negative electrode grid is respectively 90 radians, and positive and negative electrode battery lead plate surrounds rear center heating zone in a tubular form; The utility model can form good thermograde, improves yield rate, realizes sapphire monocrystal automatic growth.
Description
Technical field
The utility model relates to a kind of tungsten bar well heater, especially a kind of a kind of variable diameter tungsten bar well heater that can meet gradient temperature field condition needed for Sapphire Crystal Growth for sapphire single-crystal furnace.
Background technology
Along with developing rapidly of global new forms of energy market, LED industry has become energy industry new growth point, has possessed the ability of catching up with and surpassing other Energy Saving Industries, has worldwide presented the gesture of fast development.
Sapphire single-crystal furnace is crystal growth equipment important in LED industry chain, because sapphire monocrystal slowly grows under the condition of high temperature, good thermograde is needed to control to form the cold heart, need uniform and stable temperature field to realize the stable growth of single crystal, therefore the controlled basis of the thermograde of well heater is most important simultaneously.At present, sapphire single-crystal furnace generally adopts birdcage shape isometrical formula tungsten bar well heater, and this well heater cannot form desirable gradient temperature field.Therefore, adopt crystal that the sapphire single-crystal furnace of birdcage shape isometrical formula tungsten bar well heater grows mostly below 65 kilograms, and crystal is often because thermal field disorder produces a large amount of crackle or bubble, crystal yield rate is lower, has a strong impact on the production efficiency of sapphire crystallization.How forming desirable gradient temperature field in the heater, is the heat subject paid close attention in the industry.
Summary of the invention
The purpose of this utility model is: for the uncontrollability of the birdcage shape isometrical formula tungsten bar heater temperature gradient of existing sapphire crystallization furnace, cause the series of problems such as Sapphire Crystal Growth yield rate is low, size is little, of low quality, provide a kind of novel reliably for the variable diameter tungsten bar well heater of sapphire single-crystal furnace.
The purpose of this utility model is achieved in that a kind of reducing tungsten bar well heater for sapphire single-crystal furnace, it is characterized in that: well heater comprise arc positive and negative electrode battery lead plate, conflux tungsten ring, positive electrode gate and negative electrode grid, and four equally distributed electrode pawls, wherein, positive and negative electrode grid are all containing one group of reducing tungsten bar, every root reducing tungsten bar in one group of reducing tungsten bar at least comprises the tungsten bar of two joint different diameters, the reducing tungsten bar joint portion of different diameter is connected smoothly by the frustum mated with bar footpath, two ends; The positive and negative electrode battery lead plate of described arc is respectively equipped with an electrode pawl, successively alternately, one end of positive and negative electrode grid all connects with tungsten boxing of confluxing positive and negative electrode grid, and the other end is corresponding with the positive and negative electrode battery lead plate of arc respectively to be welded; The curved surface of positive and negative electrode grid is respectively 90 radians, and positive and negative electrode battery lead plate surrounds rear center heating zone in a tubular form.
In the utility model: at least containing four parallel and reducing tungsten bars that specification is identical in one group of described reducing tungsten bar, a joint of every root reducing tungsten bar same diameter is all positioned at the identical corresponding position of positive and negative electrode grid.
In the utility model: positive and negative electrode grid are at least provided with one spacer ferrule, the setting position of spacer ferrule is by described positive and negative electrode grid even partition; Spacer ferrule comprises the radian inside and outside fixed link consistent with positive and negative electrode grid curved surface and tungsten-rhenium wire, internal fixtion bar is positioned at the inner side of positive and negative electrode grid, extenal fixation bar is positioned at the outside of positive and negative electrode grid, after inside and outside fixed link clamps one group of reducing tungsten bar, inside and outside fixed link is tied up through the space adjacent reducing tungsten bar by tungsten-rhenium wire.
In the utility model: internal fixtion bar is the radian fixed link consistent with positive and negative electrode grid curved surface, extenal fixation bar is two radians fixed links consistent with positive and negative electrode grid curved surface, and the diameter of internal fixtion bar is greater than extenal fixation bar.
In the utility model: extenal fixation bar is the radian fixed link consistent with positive and negative electrode grid curved surface, internal fixtion bar is two radians fixed links consistent with positive and negative electrode grid curved surface, and the diameter of extenal fixation bar is greater than internal fixtion bar.
In the utility model: described electrode pawl is the electrode pawl of two plate electrode compounds, one end of every plate electrode is the arc mated with arc-shaped electrode plate, two plate electrode compound tenses, the arc Eight characters of two plate electrodes separately, hold behind the end of one group of reducing tungsten bar and weld by arc and the corresponding arc-shaped electrode plate holder of electrode.
In the utility model: manufacture electrode pawl, the material of the tungsten ring that confluxes be powder metallurgy after the tungsten plate that formed of rolling; The metal tungsten bar that after described manufacture reducing tungsten bar, the material of fixed link are powder metallurgy, rolling is formed, reducing tungsten bar is by described metal tungsten bar turning aftershaping.
The utility model has the advantage of: due to just, negative electrode grid is all containing one group of reducing tungsten bar, every root reducing tungsten bar in one group of reducing tungsten bar at least comprises the tungsten bar of two joint different diameters, the reducing tungsten bar joint portion of different diameter is connected smoothly by the frustum mated with bar footpath, two ends, after assembling, one joint of every root reducing tungsten bar same diameter is just all being positioned at, the identical corresponding position of negative electrode grid, the different resistance value that can be formed because of diameter change by reducing heating pole self, change and control heater at the power stage of different zones, form good thermograde, crystal yield rate improves greatly, more contribute to the automatization growth realizing sapphire monocrystal.
Of the present utility modelly to be also advantageous in that: due to the positive and negative electrode battery lead plate of described arc being respectively equipped with an electrode pawl, positive and negative electrode grid successively alternately, one end of positive and negative electrode grid all connects with tungsten boxing of confluxing, and the other end is corresponding with the positive and negative electrode battery lead plate of arc respectively to be welded; The curved surface of positive and negative electrode grid is respectively 90 radians, surrounds rear center heating zone in a tubular form; Especially spacer ferrule is set on positive and negative electrode grid, spacer ferrule comprises the radian inside and outside fixed link consistent with negative positive electrode gate curved surface and tungsten-rhenium wire, after inside and outside fixed link clamps one group of reducing tungsten bar, inside and outside fixed link is tied up through the space adjacent reducing tungsten bar by tungsten-rhenium wire; And electrode pawl adopts the electrode pawl of two plate electrode compounds, one end of every plate electrode is the arc mated with arc-shaped electrode plate, two plate electrode compound tenses, the arc Eight characters of two plate electrodes separately, weld after arc and the arc-shaped electrode plate holder of electrode hold the end of one group of reducing tungsten bar, these measures are all conducive to improving the rigidity of well heater in temperature field and stability.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram that the utility model relates to embodiment;
Fig. 2 is the structural representation that the utility model relates to the positive and negative electrode end of embodiment;
Fig. 3 is the reducer local structure schematic diagram of the reducing tungsten bar that the utility model relates to;
Fig. 4 is the schematic diagram that spacer ferrule that the utility model relates to ties up mode.
In figure: 1, electrode pawl, 2, anode electrode plate, 3, negative el, 4, negative electrode grid, 5, conflux tungsten ring, 6, positive electrode gate, 7, tungsten-rhenium wire, 8, reducing tungsten bar, 9, spacer ferrule, 10, internal fixtion bar, 11, extenal fixation bar, 12, transition frustum.
Embodiment
Accompanying drawing discloses the concrete structure of a kind of embodiment that the utility model relates to without limitation, is further described the utility model below in conjunction with accompanying drawing.
As seen from Figure 1, the utility model comprises the anode electrode plate 2 of arc, the negative el 3 of arc, the tungsten ring 5 that confluxes, positive electrode gate 6 and negative electrode grid 4, and four equally distributed electrode pawls 1, wherein, positive electrode gate 6 and negative electrode grid 4 all containing one group of reducing tungsten bar; The positive and negative electrode battery lead plate of described arc is respectively equipped with an electrode pawl 1, positive electrode gate 6, negative electrode grid 4 are successively alternately, one end of positive electrode gate 6 and negative electrode grid 4 is all welded with the tungsten ring 5 that confluxes, the other end respectively with the anode electrode plate 2 of arc, negative el 3 is corresponding welds; The curved surface of positive electrode gate 6 and negative electrode grid 4 is respectively 90 radians, surrounds rear center heating zone in a tubular form.Spacer ferrule 9 together with positive electrode gate 6 is at least provided with on negative electrode grid 4, the setting position of spacer ferrule is by described negative electrode grid and positive electrode gate even partition.In the present embodiment, positive electrode gate 6 and negative electrode grid 4 are provided with four road spacer ferrules 9, and described negative electrode grid 4 and positive electrode gate 6 even partition are five parts by the setting position of spacer ferrule 9.
As seen from Figure 2, in the present embodiment, described electrode pawl 1 is the electrode pawl of two plate electrode compounds, one end of every plate electrode is the arc mated with positive arc battery lead plate 2 and negative arc shape battery lead plate 3, two plate electrode compound tenses, separately, each arc-shaped electrode plate and the arc of corresponding positive and negative electrode weld after clamping the end of one group of reducing tungsten bar the arc Eight characters of two plate electrodes.
Every root reducing tungsten bar 8 in one group of reducing tungsten bar at least comprises the tungsten bar of two joint different diameters, as seen from Figure 3, at reducer, the tungsten bar that diameter is respectively a and b forms reducing tungsten bar 8 after joint portion is connected smoothly by the transition frustum 12 mated with bar footpath, two ends.During concrete enforcement, every root reducing tungsten bar 8 comprises the tungsten bar of more piece different diameter, reducing tungsten bar 8 often saves the reducer of different diameter, tungsten bar joint portion is all connected smoothly by the transition frustum 12 mated with bar footpath, two ends.In one group of reducing tungsten bar, adopt many parallel and reducing tungsten bars 8 that specification is identical, a joint of every root reducing tungsten bar same diameter is all positioned at the identical corresponding position of positive and negative electrode grid.
As seen from Figure 4, spacer ferrule 9 comprises the radian internal fixtion bar 10 consistent with negative positive electrode gate curved surface, extenal fixation bar 11 and tungsten-rhenium wire 7, internal fixtion bar 10 is positioned at the inner side of positive and negative electrode grid, extenal fixation bar is positioned at the outside of positive and negative electrode grid, after inside and outside fixed link clamps one group of reducing tungsten bar 8, interior internal fixtion bar 10 and extenal fixation bar 11 are tied up through the space adjacent reducing tungsten bar 8 by tungsten-rhenium wire 7..In the present embodiment, internal fixtion bar 10 is the radian fixed link consistent with positive and negative electrode grid curved surface, and extenal fixation bar 11 is two radians fixed links consistent with positive and negative electrode grid curved surface, and the diameter of internal fixtion bar 10 is greater than extenal fixation bar.During concrete enforcement, the fixed link that also can be extenal fixation bar 11 a be radian is consistent with positive and negative electrode grid curved surface, internal fixtion bar 10 is two radians fixed links consistent with positive and negative electrode grid curved surface, and the diameter of extenal fixation bar 11 is greater than internal fixtion bar.
During concrete enforcement, manufacture electrode pawl 1, the material of the tungsten ring 5 that confluxes be powder metallurgy after the tungsten plate that formed of rolling; The metal tungsten bar that after the material of described manufacture reducing tungsten bar 8, internal fixtion bar 10, extenal fixation bar 11 is powder metallurgy, rolling is formed, wherein, reducing tungsten bar 8 is by described metal tungsten bar turning aftershaping.
During concrete enforcement, the welding process related to is: the argon arc welding implemented under protection of inert gas, and wlding is tungsten welding wire.
Claims (7)
1. the reducing tungsten bar well heater for sapphire single-crystal furnace, it is characterized in that: well heater comprise arc positive and negative electrode battery lead plate, conflux tungsten ring, positive electrode gate and negative electrode grid, and four equally distributed electrode pawls, wherein, positive and negative electrode grid are all containing one group of reducing tungsten bar, every root reducing tungsten bar in one group of reducing tungsten bar at least comprises the tungsten bar of two joint different diameters, the reducing tungsten bar joint portion of different diameter is connected smoothly by the frustum mated with bar footpath, two ends; The positive and negative electrode battery lead plate of described arc is respectively equipped with an electrode pawl, successively alternately, one end of positive and negative electrode grid all connects with tungsten boxing of confluxing positive and negative electrode grid, and the other end is corresponding with the positive and negative electrode battery lead plate of arc respectively to be welded; The curved surface of positive and negative electrode grid is respectively 90 radians, and positive and negative electrode battery lead plate surrounds rear center heating zone in a tubular form.
2. the reducing tungsten bar well heater for sapphire single-crystal furnace according to claim 1, it is characterized in that: at least containing four parallel and reducing tungsten bars that specification is identical in one group of described reducing tungsten bar, a joint of every root reducing tungsten bar same diameter is all positioned at the identical corresponding position of positive and negative electrode grid.
3. the reducing tungsten bar well heater for sapphire single-crystal furnace according to claim 1, is characterized in that: positive and negative electrode grid are at least provided with one spacer ferrule, and the setting position of spacer ferrule is by described positive and negative electrode grid even partition; Spacer ferrule comprises the radian inside and outside fixed link consistent with positive and negative electrode grid curved surface and tungsten-rhenium wire, internal fixtion bar is positioned at the inner side of positive and negative electrode grid, extenal fixation bar is positioned at the outside of positive and negative electrode grid, after inside and outside fixed link clamps one group of reducing tungsten bar, inside and outside fixed link is tied up through the space adjacent reducing tungsten bar by tungsten-rhenium wire.
4. the reducing tungsten bar well heater for sapphire single-crystal furnace according to claim 3, it is characterized in that: internal fixtion bar is the radian fixed link consistent with positive and negative electrode grid curved surface, extenal fixation bar is two radians fixed links consistent with positive and negative electrode grid curved surface, and the diameter of internal fixtion bar is greater than extenal fixation bar.
5. the reducing tungsten bar well heater for sapphire single-crystal furnace according to claim 3, it is characterized in that: extenal fixation bar is the radian fixed link consistent with positive and negative electrode grid curved surface, internal fixtion bar is two radians fixed links consistent with positive and negative electrode grid curved surface, and the diameter of extenal fixation bar is greater than internal fixtion bar.
6. according to the reducing tungsten bar well heater for sapphire single-crystal furnace one of claim 1-5 Suo Shu, it is characterized in that: described electrode pawl is the electrode pawl of two plate electrode compounds, one end of every plate electrode is the arc mated with arc-shaped electrode plate, two plate electrode compound tenses, the arc Eight characters of two plate electrodes separately, hold behind the end of one group of reducing tungsten bar and weld by arc and the corresponding arc-shaped electrode plate holder of electrode.
7. the reducing tungsten bar well heater for sapphire single-crystal furnace according to claim 1, is characterized in that: manufacture electrode pawl, the material of the tungsten ring that confluxes be powder metallurgy after the tungsten plate that formed of rolling; The metal tungsten bar that after described manufacture reducing tungsten bar, the material of fixed link are powder metallurgy, rolling is formed, reducing tungsten bar is by described metal tungsten bar turning aftershaping.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507793.1U CN204097594U (en) | 2014-09-04 | 2014-09-04 | For the reducing tungsten bar well heater of sapphire single-crystal furnace |
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| CN201420507793.1U CN204097594U (en) | 2014-09-04 | 2014-09-04 | For the reducing tungsten bar well heater of sapphire single-crystal furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178803A (en) * | 2014-09-04 | 2014-12-03 | 南京晶升能源设备有限公司 | Reducing tungsten rod heater for sapphire single crystal furnace |
| CN108018603A (en) * | 2017-11-30 | 2018-05-11 | 南京晶升能源设备有限公司 | The heater and long crystal furnace of a kind of sapphire crystallization furnace |
-
2014
- 2014-09-04 CN CN201420507793.1U patent/CN204097594U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178803A (en) * | 2014-09-04 | 2014-12-03 | 南京晶升能源设备有限公司 | Reducing tungsten rod heater for sapphire single crystal furnace |
| CN108018603A (en) * | 2017-11-30 | 2018-05-11 | 南京晶升能源设备有限公司 | The heater and long crystal furnace of a kind of sapphire crystallization furnace |
| CN108018603B (en) * | 2017-11-30 | 2020-07-24 | 南京晶升能源设备有限公司 | Heating element of sapphire crystal growth furnace and crystal growth furnace |
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Address after: 210000 west side of building B4, Hongfeng Science Park, Nanjing Economic and Technological Development Zone, Nanjing City, Jiangsu Province Patentee after: Nanjing Jingsheng Equipment Co.,Ltd. Address before: 210000 30 HENGFA Road, Nanjing Economic and Technological Development Zone, Jiangsu Province Patentee before: NANJING CRYSTAL GROWTH & ENERGY EQUIPMENT Co.,Ltd. |