CN103060903B - A heating electrode for the production of sapphire crystal by using a KY method - Google Patents
A heating electrode for the production of sapphire crystal by using a KY method Download PDFInfo
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- CN103060903B CN103060903B CN201210581774.9A CN201210581774A CN103060903B CN 103060903 B CN103060903 B CN 103060903B CN 201210581774 A CN201210581774 A CN 201210581774A CN 103060903 B CN103060903 B CN 103060903B
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Abstract
The invention discloses a heating electrode for the production of sapphire crystal by using a KY method. The end of the electrode is perpendicular to the end face of electrode fixing seats; both two electrode fixing seats are annular circles, and are in coaxial distribution; the electrodes are arranged on a circle concentric with the annular circles, are in interleaving connection with the two electrode fixing seats, and the electrodes-connected end surfaces of the two electrodes are staggered on the axes of the annular circles; and both ends of each electrode are respectively connected to the two electrode fixing seats. By adopting the above technical solution, the positive and negative terminals of the electrodes are alternately distributed on the circumference, the long cylinders formed by the electrodes uniformly generate heating, the cold core of aluminum oxide liquid in the crucible is easy to determine, the seeding is easy, and the heat-generating body deforms little; the intersection concentric circle surface of the lower part of the heat-generating body is large, so tungsten or molybdenum support rod with a larger diameter can be placed to ensure that the crucible is not inclined; and the heat-generating body deforms little after each batch, enabling the crystal growth process of sapphire production by using the KY method more optimized, and facilitating the promotion in large-scale production.
Description
Technical field
The invention belongs to the technical field of artificial lens production process equipment, relate to the tooling that KY method produces sapphire crystal, more particularly, the present invention relates to a kind of heating electrode producing sapphire crystal for KY method.
Background technology
Produce the heating electrode of sapphire crystal about KY method, in the state of the art, the structure of its heating member is: cutting off in the middle of a circular concentric electrodes permanent seat, is positive pole, while be negative pole.Its principle of work is: when power supply back arrives negative pole permanent seat by being fixed on tungsten bar on positive pole permanent seat to bottom, starts thermal field work.
As shown in Figures 1 to 4:
Concentrically ringed electrode permanent seat is divided into the structure of two semi-circular shape, is respectively the first electrode permanent seat 1 and the second electrode permanent seat 4, and is respectively positive pole and negative pole.
Heating member has many electrodes 5, two ends of each electrode 5 are separately fixed on the first electrode permanent seat 1 and the second electrode permanent seat 4, by the mode of cross-over connection, form current path; Each electrode 5 all has two bendings, make electrode 5 form " Qian " shape, the end of electrode 5 is respectively perpendicular to the anchor ring that the first electrode permanent seat 1 and the second electrode permanent seat 4 are formed, and the connection section of two bending is parallel to this anchor ring.As shown in Figure 1 and Figure 4.
Its mode be fastenedly connected is in the side of electrode permanent seat, is threaded connection fastening for electrode 5 (shown in Fig. 4).
The end of electrode 5 is uniformly distributed on the first electrode permanent seat 1 and the second electrode permanent seat 4.As shown in Figures 2 and 3.
On the cross section of described multiple electrodes 5, electrode 5 is distributed in corresponding circumferentially to the circle of described electrode permanent seat, and like this, all electrodes 5 form cylindrical in shape.Fix outer shroud 2 and electrode by electrode to fix inner ring 3 and in columniform lateral location, electrode 5 is fixed; As shown in Figure 1 and Figure 4.
Electrode fixes outer shroud 2 and electrode, and to fix inner ring 3 also the same with the second electrode permanent seat 4 with the first electrode permanent seat 1, is two semicircles, makes the positive pole of electrode, negative pole conducting not occur at this place.Electrode is fixed outer shroud 2 and electrode and is fixed inner ring 3 arrange many groups on this columniform axis direction.Be provided with 5 groups as shown in Figure 1, play good fixed action.
Also can find out in figs. 2 and 3: the quantity of electrode 5 is 24, is divided into 6 groups, often organize 4, the connection section of two bendings on the electrode 5 often in group is parallel to each other; The bending connection section of each group of electrode 5 forms three layers on the axis of columniform bottom, staggers mutually.In plane projection, 6 groups of electrodes 5 have 4 groups of formation " well " fonts, and another two groups is 45 ° of angles with any of described " well " word.
Insulating material is adopted the first electrode permanent seat 1 and the second electrode permanent seat 4 to be connected and fixed.
The shortcoming of technique scheme is:
1, concentric(al) circles semicircle electrode is positive pole, and another semicircle is negative pole, easily causes elongated cylindrical to generate heat uneven, and in crucible, the aluminium sesquioxide liquid cooling heart floats indefinite, and seeding is sowed difficulty;
2, heating element bottom crosses concentric disc little (space in the middle of namely described " well " font), and can only lay the tungsten of small diameter, molybdenum support stick, high temperature causes insufficient strength, so that crucible tilts, and quality and security incident occur;
3, because heating element is yielding, veteran technician after often driving a stove, is needed to adjust; And cultivate so veteran technician and wanted for 5 ~ 8 years, therefore be difficult to apply in scale operation.
Summary of the invention
The invention provides and a kind ofly produce the heating electrode of sapphire crystal for KY method, its objective is optimized production process and improve the working condition of equipment.
To achieve these goals, the technical scheme that the present invention takes is:
The heating electrode producing sapphire crystal for KY method provided by the invention, comprise multiple electrode, two electrode permanent seats, also be provided with electrode fixed ring, described electrode and described electrode permanent seat are fastenedly connected, each electrode is equipped with two bendings, make electrode form " Qian " shape, the end of described electrode is vertical with the end face of described electrode permanent seat;
Two described electrode permanent seats are annular, and coaxial line distribution;
Described electrode, on the circle concentric with described annular, interlocks and be connected with the electrode permanent seat described in two, and the end face of two electrode permanent seats and Electrode connection staggers on the axis of described annular;
The two ends of each described electrode are connected with two electrode permanent seats respectively.
Two described electrode permanent seats are respectively positive pole permanent seat and negative pole permanent seat, and one end of each described electrode, through described negative pole permanent seat, is fastenedly connected with described positive pole permanent seat.
Described electrode fixed ring is respectively negative pole fixed ring and positive pole fixed ring, and is annular; In the plane perpendicular to electrode permanent seat axis, described electrode fixed ring compartment of terrain and described Electrode connection.
Described electrode is divided into six groups, and the quantity of each group electrode is equal; The same end of electrode often in group is adjacent, and the connection section of two bendings of electrode often in group is parallel to each other, forms the plane perpendicular to described electrode permanent seat axis; The connection section of two bendings of the described electrode in every three groups forms an equilateral trilateral, totally two equilateral trilaterals; These two equilateral trilateral superpositions, form positive hexagram.
The connection section of two bendings of all electrodes on described each equilateral triangle, in one plane, therefore, is formed the plane of two such not coplanars by two equilateral triangles.
The present invention adopts technique scheme, and the positive and negative end of electrode is circumferentially being alternately distributed, and evenly, in crucible, the aluminium sesquioxide liquid cooling heart is easily determined, seeding is sowed easily in the elongated cylindrical heating that electrode is formed, and heating element distortion is few; Heating element bottom crosses concentric disc greatly, can lay larger-diameter tungsten, molybdenum support stick, guarantee that crucible does not tilt; The distortion of often opening after a stove due to heating element of the present invention is few, and the technique that KY method (i.e. kyropoulos) production sapphire crystallization can be made to be formed is optimized more, is convenient to promote in scale operation.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification sheets and the mark in figure are briefly described:
Fig. 1 is the heating member structural representation described in background technology;
Fig. 2 is the schematic top plan view of structure shown in Fig. 1;
Fig. 3 is the elevational schematic view of structure shown in Fig. 1;
Fig. 4 is the sectional structure schematic diagram of electrode permanent seat in Fig. 1;
Fig. 5 is the elevational schematic view of structure shown in Fig. 6;
Fig. 6 is structural representation of the present invention;
Fig. 7 is the schematic top plan view of structure shown in Fig. 6;
Fig. 8 is the sectional structure schematic diagram of electrode permanent seat in Fig. 6.
Being labeled as in Fig. 1 to Fig. 4:
1, the first electrode permanent seat, 2, electrode fixes outer shroud, 3, electrode fixes inner ring, the 4, second electrode permanent seat, 5, electrode.
Being labeled as in Fig. 5 to Fig. 8:
1, negative pole fixed ring, 2, positive pole permanent seat, 3, negative pole permanent seat, 4, positive pole fixed ring, 5, electrode.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
Structure of the present invention expressed by Fig. 5 to Fig. 8, for one is used for the heating electrode that KY method (i.e. kyropoulos) produces sapphire crystal, comprise multiple electrode 5, two electrode permanent seats, also be provided with electrode fixed ring, described electrode 5 is fastenedly connected with described electrode permanent seat, each electrode 5 is equipped with two bendings, makes electrode 5 form " Qian " shape, the end of described electrode 5 is vertical with the end face of described electrode permanent seat.Its mode be fastenedly connected is in the side of electrode permanent seat, is threaded connection fastening for electrode 5 (shown in Fig. 8).
Because in KY method, very high to the stability requirement of the cold heart, because seed crystal starts to grow depend on the stable cold heart.
In order to solve prior art Problems existing and overcome its defect, realize optimized production process and improve the goal of the invention of the working condition of equipment, the technical scheme that the present invention takes is:
As shown in Figure 8, the heating electrode producing sapphire crystal for KY method provided by the invention, two described electrode permanent seats are annular, and coaxial line distribution;
Described electrode 5, on the circle concentric with described annular, staggered to be connected with the electrode permanent seat described in two, and the end face that two electrode permanent seats are connected with electrode 5 staggers on the axis of described annular;
The two ends of each described electrode are connected with two electrode permanent seats respectively.
On the cross section of described multiple electrodes 5, electrode 5 is distributed in corresponding circumferentially to the circle of described electrode permanent seat, and like this, all electrodes 5 form cylindrical in shape.
Principle of work of the present invention is: when positive source is from the access of this heating element positive pole, through being fixed on the tungsten bar of positive pole, back arrive negative pole shaft collar by negative pole (negative pole empty avoiding) to bottom.Low voltage, big current produce heat, start thermal field work.
The positive and negative end of electrode is circumferentially being alternately distributed, and evenly, in crucible, the aluminium sesquioxide liquid cooling heart is easily determined, seeding is sowed easily in the elongated cylindrical heating that electrode is formed, and heating element distortion is few.Therefore, optimized production process improve the working condition of equipment.The distortion of often opening after a stove due to heating element of the present invention is few, can make KY method (i.e. kyropoulos) production sapphire crystallization formation process, be convenient to promote in scale operation.
As shown in Figure 7 and Figure 8, two described electrode permanent seats are respectively positive pole permanent seat 2 and negative pole permanent seat 3, one end of each described electrode 5, through described negative pole permanent seat 3(and above-described " negative pole empty avoiding ", is fastenedly connected with described positive pole permanent seat 2.Arrange accordingly through hole on negative pole permanent seat 3, is greater than the diameter of electrode 5, makes it ensure to collide.
As shown in Figure 5 and Figure 6, described electrode fixed ring is respectively negative pole fixed ring 1 and positive pole fixed ring 4, and is annular; In the plane perpendicular to electrode permanent seat axis, described electrode fixed ring compartment of terrain is connected with described electrode 5.
Electrode 5 is fixed in columniform lateral location by negative pole fixed ring 1 and positive pole fixed ring 4.Shown in Fig. 6, arrange six groups of fixed rings altogether, often organizing fixed ring has a negative pole fixed ring 1 and a positive pole fixed ring 4, and stagger fixed electorde 5 respectively, avoids circuit conducting on fixed ring.
As shown in figure 5 and figure 7:
Described electrode 5 is divided into six groups, and the quantity of each group electrode 5 is equal; The same end of electrode 5 often in group is adjacent, and the connection section of two bendings of electrode 5 often in group is parallel to each other, forms the plane perpendicular to described electrode permanent seat axis; The connection section of two bendings of the described electrode 5 in every three groups, forms an equilateral triangle, totally two equilateral triangles; These two equilateral triangle superpositions, form positive hexagram.
Electrode 5 shown in figure has 30, is divided into six groups, so often group is 5.
This positive double triangles six rayed star is also called " star of David ", i.e. Israel's national flag pattern.This positive hexagram is alternately installed based on above-mentioned electrode on permanent seat and could realize, and its technical scheme is closely related.Adopt the permanent seat of semicircle in prior art, just cannot accomplish.Like this, heating element bottom crosses concentric disc greatly, hexagonal passage under in substance form, and area is much bigger, can lay larger-diameter tungsten, molybdenum support stick, guarantee that crucible does not tilt;
As shown in Figures 5 to 7, the connection section of two bendings of all electrodes 5 on described each equilateral triangle, distribution in one plane, therefore, is formed the plane of two such not coplanars by two equilateral triangles.Fewer than prior art one deck, improves heating efficiency.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (2)
1. produce the heating electrode of sapphire crystal for KY method for one kind, comprise multiple electrode (5), two electrode permanent seats, also be provided with electrode fixed ring, described electrode (5) and described electrode permanent seat are fastenedly connected, each electrode (5) is equipped with two bendings, make electrode (5) form " Qian " shape, the end of described electrode (5) is vertical with the end face of described electrode permanent seat;
It is characterized in that:
Two described electrode permanent seats are annular, and coaxial line distribution;
Described electrode (5), on the circle concentric with described annular, staggered to be connected with the electrode permanent seat described in two, and the end face that two electrode permanent seats are connected with electrode (5) staggers on the axis of described annular;
The two ends of each described electrode are connected with two electrode permanent seats respectively;
Described electrode (5) is divided into six groups, and the quantity respectively organizing electrode (5) is equal; Electrode (5) same end often in group is adjacent, and the connection section of two bendings of electrode (5) often in group is parallel to each other, forms the plane perpendicular to described electrode permanent seat axis; The connection section of two bendings of the described electrode (5) in every three groups forms an equilateral triangle, totally two equilateral triangles; These two equilateral triangle superpositions, form positive hexagram;
Two described electrode permanent seats are respectively positive pole permanent seat (2) and negative pole permanent seat (3), one end of each described electrode (5), through described negative pole permanent seat (3), is fastenedly connected with described positive pole permanent seat (2);
Described electrode fixed ring is respectively negative pole fixed ring (1) and positive pole fixed ring (4), and is annular; In the plane perpendicular to electrode permanent seat axis, described electrode fixed ring compartment of terrain is connected with described electrode (5).
2. according to the heating electrode producing sapphire crystal for KY method according to claim 1, it is characterized in that: the connection section of two bendings of all electrodes (5) on described each equilateral triangle, distribution in one plane, therefore, the plane of two such not coplanars is formed by two equilateral triangles.
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| CN201210581774.9A CN103060903B (en) | 2012-12-28 | 2012-12-28 | A heating electrode for the production of sapphire crystal by using a KY method |
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| CN201210581774.9A CN103060903B (en) | 2012-12-28 | 2012-12-28 | A heating electrode for the production of sapphire crystal by using a KY method |
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| CN103060903A CN103060903A (en) | 2013-04-24 |
| CN103060903B true CN103060903B (en) | 2015-04-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103160919B (en) * | 2013-03-09 | 2016-01-27 | 青海铸玛蓝宝石晶体有限公司 | Heating electrode in a kind of kyropoulos production unit of sapphire crystal |
| CN104790028A (en) * | 2015-05-05 | 2015-07-22 | 何康玉 | Heating body in sapphire crystal production device by kyropoulos method |
| CN105113019B (en) * | 2015-09-29 | 2018-01-02 | 何康玉 | One kind heating tungsten bar heating electrode |
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| CN201411510Y (en) * | 2009-06-26 | 2010-02-24 | 哈尔滨工大奥瑞德光电技术有限公司 | Birdcage-structured resistance heating element of single crystal furnace for growth of big size sapphire |
| CN102321914A (en) * | 2011-10-09 | 2012-01-18 | 广州市晶蓝灯饰有限公司 | Water cooled electrode of kyropoulos sapphire crystal growing furnace |
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| CN203021679U (en) * | 2012-12-28 | 2013-06-26 | 青海铸玛蓝宝石晶体有限公司 | Heating electrode for producing sapphire crystals through KY (Kyropulos) method |
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| CN201411510Y (en) * | 2009-06-26 | 2010-02-24 | 哈尔滨工大奥瑞德光电技术有限公司 | Birdcage-structured resistance heating element of single crystal furnace for growth of big size sapphire |
| CN102321914A (en) * | 2011-10-09 | 2012-01-18 | 广州市晶蓝灯饰有限公司 | Water cooled electrode of kyropoulos sapphire crystal growing furnace |
| KR20130043390A (en) * | 2011-10-20 | 2013-04-30 | 디케이아즈텍 주식회사 | Heating apparatus in ingot grower |
| CN203021679U (en) * | 2012-12-28 | 2013-06-26 | 青海铸玛蓝宝石晶体有限公司 | Heating electrode for producing sapphire crystals through KY (Kyropulos) method |
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Denomination of invention: A heating electrode for the production of sapphire crystal by using a KY method Effective date of registration: 20160616 Granted publication date: 20150429 Pledgee: Open the country development fund company limited Pledgor: Qinghai Zhuma Sapphire Crystal Co., Ltd. Registration number: 2016630000002 |
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