CN204125566U - A kind of seed holder for kyropoulos growth gem crystal - Google Patents
A kind of seed holder for kyropoulos growth gem crystal Download PDFInfo
- Publication number
- CN204125566U CN204125566U CN201420479885.3U CN201420479885U CN204125566U CN 204125566 U CN204125566 U CN 204125566U CN 201420479885 U CN201420479885 U CN 201420479885U CN 204125566 U CN204125566 U CN 204125566U
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- China
- Prior art keywords
- seed
- chuck
- crystal
- draw
- cover plate
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Abstract
The utility model relates to a kind of seed holder for kyropoulos growth gem crystal, belongs to crystal growth supplementary unit.The utility model comprises seed rod, seed rod one end is provided with seed chuck, seed chuck bottom surface is the zig-zag conical surface, seed chuck has the wedge shaped seed draw-in groove placing seed crystal, seed chuck is provided with fastening screw and draw-in groove cover plate, and the overall end face that draw-in groove cover plate and seed chuck are formed is the zig-zag conical surface.The bottom surface of described seed chuck bottom surface and cover plate is symmetrical.The asymmetric reflection caused in lower surface that the utility model is mainly to overcome seed chuck is uneven, finally causes the situations such as seeding form is irregular, critical temperature erroneous judgement.Meanwhile, chuck adopts the seed crystal fixed form of biplate screw threads for fastening, avoids the use of tungsten-rhenium wire, reduces cost.
Description
Technical field
The utility model relates to a kind of seed holder for kyropoulos growth gem crystal, belongs to crystal growth supplementary unit.
Technical background
Sapphire is a kind of novel crystal material with features such as high rigidity, high transmittance, excellent physical and chemical stabilities, has a wide range of applications in LED substrate, optical window sheets etc.In recent years along with sapphire material promoting the use of in mobile phone screen makes the temperature of sapphire material reach peak.
The growth of sapphire crystal adopts melting method crystallographic orientation to form, and a kind of with its outstanding crystal mass and relatively low cost as melt growth method of kyropoulos, become the growth method of main flow.Kyropoulos growing sapphire monocrystalline is generally divided into melt, seeding, isodiametric growth, annealing several stage.In the seeding stage, by seed crystal clamping on chuck, with chuck slow interception liquid level simultaneously, the brilliant neck of one section of transition is lifted out after contacting with liquid level, the quality of brilliant neck lower end is reached and can carry out expanding the requirement of takeing on, now very closely, the heat reflection of its bottom surface is enough to have an impact to the thermal environment at seed crystal solid-liquid contact place for seed chuck and liquid level distance.Along with the development that sapphire crystal is in large size, the instability of thermal environment in stove will certainly be caused, and under the environment of this instability, the impact of seed chuck heat reflection on seeding will be more and more obvious.
Existing technology seed rod and seed chuck often adopt split type thread connecting mode, easily occur the situations such as loose or dislocation along with using junction for a long time; Seed chuck bottom surface is that plane reflection is serious, easily causes the situations such as seeding form is irregular, critical temperature erroneous judgement; The mode that the fixing employing tungsten-rhenium wire of seed crystal is tied up, tungsten-rhenium wire belongs to expensive running stores, and this also brings pressure to the reduction of cost undoubtedly.
Utility model content
The purpose of this utility model is that providing a kind of can reduce the Probability that seeding form is irregular, critical temperature is judged by accident, lower-cost a kind of seed holder for kyropoulos growth gem crystal.
Technical solution:
The utility model comprises seed rod, seed rod one end is provided with seed chuck, seed chuck bottom surface is the zig-zag conical surface, seed chuck has the wedge shaped seed draw-in groove placing seed crystal, seed chuck is provided with fastening screw and draw-in groove cover plate, and the overall end face that draw-in groove cover plate and seed chuck are formed is the zig-zag conical surface.The bottom surface of described seed chuck bottom surface and cover plate is symmetrical.
The asymmetric reflection caused in lower surface that the utility model is mainly to overcome seed chuck is uneven, finally causes the situations such as seeding form is irregular, critical temperature erroneous judgement.Meanwhile, the wedge shaped seed draw-in groove on seed chuck chuck forms the seed crystal fixed form of biplate screw threads for fastening, avoids the use of tungsten-rhenium wire, reduces cost.
1. seed chuck draw-in groove adopts wedge structure, and in crystal growing process, chuck relies on two hypotenuses of wedge shape draw-in groove stressed, and what ensure that in the vertical direction is fastening, adopts the structure intensity at high temperature of tungsten material to be enough to bear this load.
2. seed holder head and draw-in groove cover plate are by interlocking, and are fixed in draw-in groove by seed crystal, then by screw-threaded coupling, ensure that seed crystal in the horizontal direction fastening.Such a configuration obviates the use of tungsten-rhenium wire, save cost, simultaneously fixing more firm than adopting tungsten-rhenium wire to tie up.
3. the bottom surface of seed chuck bottom surface and cover plate is symmetrical structure, ensure that the homogeneity of bottom surface to high-temperature fusant radiation reflective, the overall end face that draw-in groove cover plate and seed chuck are formed is the zig-zag conical surface, weaken this harmful reflections further, improve seeding quality, for long crystalline substance has laid good basis.
4. seed rod and seed chuck integral structure, also avoid the chuck adopting screw connection structure to occur when life-time service and loosens situation when proof strength.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model draw-in groove cover plate and the fastening schematic diagram of seed holder.
specific implementation method
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, seed rod 1 one end is provided with seed chuck 3, integral structure is adopted between seed rod 1 and seed chuck 2, seed chuck has the wedge shaped seed draw-in groove 3 placing seed crystal, sapphire seed crystal 4 is with among the structural embeddedness wedge shaped seed draw-in groove 3 of inverted trapezoidal, and seed chuck 2 is provided with 4 fastening screw screws 5 for locking cover plate, fixing seed crystal, seed chuck 2 bottom surface 6, for having the ramp structure of dentiform steps, contributes to the heat reflection weakening bottom surface.Structure material is tungsten as shown in the figure.
As shown in Figure 2, seed chuck draw-in groove cover plate 7 and seed chuck 2 are closely together, by bolt-locking, ensure that the fastening of seed crystal, avoid the use of tungsten-rhenium wire, reduce cost, the bottom surface 1 of draw-in groove cover plate 7 is also the cone structure of dentiform steps, it is the zig-zag conical surface that draw-in groove cover plate bottom surface 8 and seed chuck bottom surface 6 form overall bottom surface, and seed chuck bottom surface 6 is symmetrical with the bottom surface 8 of cover plate, this structure has low heat reflection to seed crystal and liquid level contact position, is conducive to the judgement of seeding temperature and the improvement of seeding quality, and then improves crystal yield.
The utility model is not limited only to the clamping of sapphire seed crystal, and the seed crystal of other gem crystals is applicable equally.
Claims (2)
1. the seed holder for kyropoulos growth gem crystal, it is characterized in that, comprise seed rod, seed rod one end is provided with seed chuck, seed chuck has the wedge shaped seed draw-in groove placing seed crystal, seed chuck is provided with fastening screw and draw-in groove cover plate, and the overall end face that draw-in groove cover plate and seed chuck are formed is the zig-zag conical surface.
2. a kind of seed holder for kyropoulos growth gem crystal according to claim 1, it is characterized in that, the bottom surface of seed chuck bottom surface and cover plate is symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420479885.3U CN204125566U (en) | 2014-08-25 | 2014-08-25 | A kind of seed holder for kyropoulos growth gem crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420479885.3U CN204125566U (en) | 2014-08-25 | 2014-08-25 | A kind of seed holder for kyropoulos growth gem crystal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204125566U true CN204125566U (en) | 2015-01-28 |
Family
ID=52381937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420479885.3U Expired - Fee Related CN204125566U (en) | 2014-08-25 | 2014-08-25 | A kind of seed holder for kyropoulos growth gem crystal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204125566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411393A (en) * | 2020-04-08 | 2020-07-14 | 福建晶安光电有限公司 | Seeding equipment and seeding method |
-
2014
- 2014-08-25 CN CN201420479885.3U patent/CN204125566U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411393A (en) * | 2020-04-08 | 2020-07-14 | 福建晶安光电有限公司 | Seeding equipment and seeding method |
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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: 20150128 Termination date: 20200825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |