CN103014843B - Clamp for mounting seed crystal for growing sapphire crystal with kyropoulos method - Google Patents
Clamp for mounting seed crystal for growing sapphire crystal with kyropoulos method Download PDFInfo
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- CN103014843B CN103014843B CN201310008525.5A CN201310008525A CN103014843B CN 103014843 B CN103014843 B CN 103014843B CN 201310008525 A CN201310008525 A CN 201310008525A CN 103014843 B CN103014843 B CN 103014843B
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- molybdenum
- joint
- connecting rod
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- crystal
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Abstract
The invention discloses a clamp for mounting seed crystal for growing sapphire crystal with a kyropoulos method. The clamp comprises a molybdenum joint and a molybdenum connecting rod, which are movably connected; the whole body of the molybdenum joint is a hollow sleeve; one end of the molybdenum joint is connected with a seed crystal rod; the inner wall of the other end of the molybdenum joint is an arc-shaped face, and is matched with the molybdenum connecting rod; the molybdenum connecting rod is provided with an end head in the shape of a circular truncated cone body; and the lateral face of the end head is an arc face, and is connected with the arc face of the molybdenum joint in a matched manner. According to the clamp for mounting the seed crystal for growing the sapphire crystal with the kyropoulos method provided by the invention, the molybdenum joint and the molybdenum connecting rod are in a movable connection manner rather than a thread hard connection manner. The molybdenum joint and the molybdenum connecting rod are in contact through the arc-shaped faces, and can relatively move. The molybdenum connecting rod can have a rotation space within a certain range. If a certain shift exists in a period of growing the crystal by the seed crystal, the molybdenum connecting rod offsets with the molybdenum joint for a certain distance, and can be prevented from being bent or even broken. The requirement on the offset during the period of growing the crystal by the seed crystal can be met; the clamp is difficult to damage; and the production cost can be saved.
Description
Technical field
The present invention relates to a kind of fixture for kyropoulos growing sapphire crystal, particularly relate to a kind of fixture of the installation seed crystal for kyropoulos growing sapphire crystal.
Background technology
Adopt KY method (kyropoulos) to grow φ 320mm optical grade sapphire crystal, it has, and crystal volume is large, profile is complete, dislocation desity is little, water white transparency, optical homogeneity advantages of higher, represents the highest level of current sapphire preparation technology.This product is the critical material of current semiconductor energy-saving illumination chip LED substrate, large-scale integrated circuit substrate etc.; Simultaneously because sapphire crystal has excellent optical property, mechanical property and chemical stability, intensity is high, hardness is large, resistance to erosion, can work under the mal-condition close to 2000 DEG C of high temperature, become the preferred material of the Disciplinary Frontiers such as current special equipment, infrared military installation, satellite spatial technology, high-performance window.
Large size sapphire crystal (85kg, 120kg, 250kg etc.) growth is a trend of future development, so particularly important to the structure design of the grip device installing seed crystal (crystal seed).A lot of type is designed with in the past to this grip device, nothing but that one end of seed crystal is embedded in the mold slots of tungsten clip head, then carry out binding with molybdenum filament or tungsten aluminium wire to it to fix, carry out the Hard link of screw-type between molybdenum joint (being threaded with seed rod) and molybdenum connecting rod simultaneously, then seed crystal is inserted in the melt of Al2O3 of melting, carry out corresponding seeding technique, carry out the regular growth of accumulation of atom at seed crystal end face.This type of design is when the cold heart skew of liquid (high temperature of 2045 degree) of melting, or when the reasons such as other warm fields cause crystal growth that skew occurs, so because crystal and seed crystal misalign the heart, be easy to the abnormal conditions such as seed crystal fracture or molybdenum connecting rod bending occur, thus cause and produce unsuccessfully, cost of idleness.
Summary of the invention
Technical problem to be solved by this invention is the defect overcoming prior art, a kind of fixture of the installation seed crystal for kyropoulos growing sapphire crystal is provided, the generation of the abnormal conditions such as can avoid molybdenum connecting rod bending or fracture, fixture is not fragile, the demand of the side-play amount produced during meeting seeded growth crystal.
For solving the problems of the technologies described above, the invention provides a kind of fixture of the installation seed crystal for kyropoulos growing sapphire crystal, it is characterized in that,
Comprise molybdenum joint and the molybdenum connecting rod of movable connection;
Described molybdenum joint entirety is a hollow sleeve, and one end is connected with seed rod, and the inwall of the other end is arc, in mating connection with molybdenum connecting rod;
Described molybdenum connecting rod has the termination that is Rotary-table shape, this side, termination is arc, coordinates with the arc in described molybdenum joint.
Described molybdenum joint one end has internal thread, is threaded with seed rod.
The termination that the space that arc in described molybdenum joint is formed can hold described molybdenum connecting rod is movable wherein.
The space that described molybdenum joint concave profile is formed is greater than towards the opening of the other end end face towards the one end open of internal thread.
Described molybdenum connecting rod is a straight-bar with described termination, and described termination global shape is Rotary-table, and the side surface of Rotary-table is arc.
One end that described Rotary-table diameter is less is connected with described straight-bar.
Arc in described molybdenum joint is the sphere of radius 8.5mm, and the arc of described molybdenum small end head side is the sphere of radius 8.0mm.
Arc in described molybdenum joint is sphere, and described molybdenum small end head is sphere, and described molybdenum small end head is the spherical radius that sphere is not more than in described molybdenum joint.
One end that its opening of space that described molybdenum joint concave profile is formed is less connects the passage of one section of toroidal, and it is larger that passage more extends its opening to the other end end face.
The beneficial effect that the present invention reaches:
The fixture of the installation seed crystal for kyropoulos growing sapphire crystal of the present invention, the hard connecting mode of screw-type is no longer adopted between molybdenum joint and molybdenum connecting rod, but adopt flexible connection, dependence arc contacts, can be movable relatively, molybdenum connecting rod can have the revolution space in certain limit, if have certain skew during seeded growth crystal, so molybdenum connecting rod can not be able to make molybdenum connecting rod bending even fracture thereupon offseting certain distance, to the demand of side-play amount during meeting seeded growth crystal, fixture is not fragile, has saved production cost.
Accompanying drawing explanation
Fig. 1 is the fixture sectional view of the installation seed crystal for kyropoulos growing sapphire crystal;
Fig. 2 is the molybdenum joint schematic diagram in Fig. 1;
Fig. 3 is the molybdenum connecting rod schematic diagram in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, Figure 2 and Figure 3, the fixture of the installation seed crystal for kyropoulos growing sapphire crystal of the present invention comprises molybdenum joint 1 and the molybdenum connecting rod 2 of movable connection, molybdenum joint 1 entirety is a hollow sleeve, one end 11 inwall has internal thread, can be threaded with seed rod, the inwall of the other end 12 is designed to arc 13, in mating connection with molybdenum connecting rod 2.The space 14 that arc is formed is comparatively large towards the one end open 141 of internal thread, and the space 14 that arc is formed is less towards the opening 142 of the other end end face 121, after molybdenum connecting rod 2 is assembled, can snap in the space 14 of arc formation and not come off.
Preferably mode is the passage 15 that less one end of its opening of space 14 that molybdenum joint concave profile is formed connects one section of toroidal, and it is larger that passage 15 more extends its opening to the other end end face 121, be beneficial to molybdenum connecting rod 2 assemble after can activity within the specific limits.
Molybdenum connecting rod 2 has straight-bar 22 and a termination 21, and this termination 21 global shape is Rotary-table, and the side surface of Rotary-table is arc 211, can coordinate, and the little head end of Rotary-table is connected with straight-bar 22 with the arc 13 in molybdenum joint 1.
Preferably arc is a part for standard sphere, and the spherical radius in molybdenum joint is R8.5mm, and the termination on molybdenum connecting rod is also a part for standard sphere, and its radius is R8mm, makes molybdenum joint 1 can hold termination 21 movable wherein.
When molybdenum joint 1 and molybdenum connecting rod 2 are assembled, no longer adopt the mode that the Hard link of traditional bolt type is combined, but the straight-bar 22 of molybdenum connecting rod 2 one end 11 from molybdenum joint 1 is fitted inside, the termination 21 of molybdenum connecting rod 2 is stuck in the space 14 of the arc formation in molybdenum joint 2.Such molybdenum joint 1 and molybdenum connecting rod 2 rely on arc 13,211 to contact, can be movable relatively, so whole molybdenum connecting rod 2 can have the revolution space in certain limit, if have certain skew during seeded growth crystal, so molybdenum connecting rod 2 can not make thereupon offseting certain distance that molybdenum connecting rod 2 is bending even to fracture.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (5)
1., for a fixture for the installation seed crystal of kyropoulos growing sapphire crystal, it is characterized in that,
Comprise molybdenum joint and the molybdenum connecting rod of movable connection;
Described molybdenum joint entirety is a hollow sleeve, and one end is connected with seed rod, and the inwall of the other end is arc, in mating connection with molybdenum connecting rod;
Described molybdenum connecting rod has the termination that is Rotary-table shape, this side, termination is arc, coordinates with the arc in described molybdenum joint;
Described molybdenum joint one end has internal thread, is threaded with seed rod;
The termination that the space that arc in described molybdenum joint is formed can hold described molybdenum connecting rod is movable wherein;
The space that described molybdenum joint concave profile is formed is greater than towards the opening of the other end end face towards the one end open of internal thread;
One end that its opening of space that described molybdenum joint concave profile is formed is less connects the passage of one section of toroidal, and it is larger that passage more extends its opening to the other end end face.
2. the fixture of the installation seed crystal for kyropoulos growing sapphire crystal according to claim 1, is characterized in that, described molybdenum connecting rod is a straight-bar with described termination, and described termination global shape is Rotary-table, and the side surface of Rotary-table is arc.
3. the fixture of the installation seed crystal for kyropoulos growing sapphire crystal according to claim 2, is characterized in that, one end that described Rotary-table diameter is less is connected with described straight-bar.
4. the fixture of the installation seed crystal for kyropoulos growing sapphire crystal according to claim 1, is characterized in that, the arc in described molybdenum joint is the sphere of radius 8.5mm, and the arc of described molybdenum small end head side is the sphere of radius 8.0mm.
5. the fixture of the installation seed crystal for kyropoulos growing sapphire crystal according to claim 1, it is characterized in that, arc in described molybdenum joint is sphere, and described molybdenum small end head is sphere, and described molybdenum small end head is the spherical radius that sphere is not more than in described molybdenum joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008525.5A CN103014843B (en) | 2013-01-10 | 2013-01-10 | Clamp for mounting seed crystal for growing sapphire crystal with kyropoulos method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008525.5A CN103014843B (en) | 2013-01-10 | 2013-01-10 | Clamp for mounting seed crystal for growing sapphire crystal with kyropoulos method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103014843A CN103014843A (en) | 2013-04-03 |
| CN103014843B true CN103014843B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310008525.5A Expired - Fee Related CN103014843B (en) | 2013-01-10 | 2013-01-10 | Clamp for mounting seed crystal for growing sapphire crystal with kyropoulos method |
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| CN2578342Y (en) * | 2002-10-15 | 2003-10-08 | 北京有色金属研究总院 | Seed crystal holder for monocrystal silicon growth by straight pull process |
| CN201268729Y (en) * | 2008-10-23 | 2009-07-08 | Omt集团有限公司 | Seed crystal clamping device |
| CN101781792A (en) * | 2009-12-23 | 2010-07-21 | 常州亿晶光电科技有限公司 | Crystal clamp part for broaching silicon rod |
| CN102312288A (en) * | 2011-07-04 | 2012-01-11 | 浙江晶盛机电股份有限公司 | Self-tightening type seed crystal chuck |
| CN202499931U (en) * | 2011-12-22 | 2012-10-24 | 徐州协鑫光电科技有限公司 | Seed crystal clamp |
| CN203065631U (en) * | 2013-01-10 | 2013-07-17 | 苏州巍迩光电科技有限公司 | Clamp for growing mounting seed crystals of sapphire crystals through utilizing kyropoulos method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61261290A (en) * | 1985-05-14 | 1986-11-19 | Matsushita Electric Ind Co Ltd | Method of immobilizing seed crystal |
| JPH0648889A (en) * | 1992-07-27 | 1994-02-22 | Tokin Corp | Production of single crystal |
| KR20110095578A (en) * | 2010-02-19 | 2011-08-25 | 네오세미테크 주식회사 | The seed chuck against the drop of the large caliber sapphire ingot |
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2013
- 2013-01-10 CN CN201310008525.5A patent/CN103014843B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578342Y (en) * | 2002-10-15 | 2003-10-08 | 北京有色金属研究总院 | Seed crystal holder for monocrystal silicon growth by straight pull process |
| CN201268729Y (en) * | 2008-10-23 | 2009-07-08 | Omt集团有限公司 | Seed crystal clamping device |
| CN101781792A (en) * | 2009-12-23 | 2010-07-21 | 常州亿晶光电科技有限公司 | Crystal clamp part for broaching silicon rod |
| CN102312288A (en) * | 2011-07-04 | 2012-01-11 | 浙江晶盛机电股份有限公司 | Self-tightening type seed crystal chuck |
| CN202499931U (en) * | 2011-12-22 | 2012-10-24 | 徐州协鑫光电科技有限公司 | Seed crystal clamp |
| CN203065631U (en) * | 2013-01-10 | 2013-07-17 | 苏州巍迩光电科技有限公司 | Clamp for growing mounting seed crystals of sapphire crystals through utilizing kyropoulos method |
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| CN103014843A (en) | 2013-04-03 |
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Effective date of registration: 20151102 Address after: 225300 North Road, Gaogang science and Technology Park, high port area, Taizhou, Jiangsu Patentee after: Jiangsu Guojing Photoelectric Technology Co., Ltd. Address before: 215211, No. 558 Fen Lake Road, Fen Lake Economic Development Zone, Suzhou, Jiangsu, Wujiang Patentee before: Suzhou We Are Optoelectronics Technology Co., Ltd. |
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Granted publication date: 20150527 Termination date: 20190110 |