Heating electrode in a kind of kyropoulos production unit of sapphire crystal
Technical field
The utility model belongs to the technical field of artificial lens production process equipment, relates to the tooling that the KY method is produced sapphire crystal, and more particularly, the utility model relates to the heating electrode in a kind of kyropoulos production unit of sapphire crystal.
Background technology
In the prior art, adopt kyropoulos (being the KY method) to produce the production unit of sapphire crystal, the structure of heating member wherein is: a circular concentric electrode permanent seat, cut off along this circular central axis, be anodal on one side, be negative pole on one side, adopt tungsten bar as conductive heating unit, positive pole is connected with negative pole.Its principle of work is: tungsten bar toward getting back to the negative pole permanent seat, begins thermal field work to the bottom to electric current on the anodal permanent seat by being fixed on.
As shown in Figures 1 to 4:
Concentrically ringed electrode permanent seat is divided into the structure of two semi-round ring shapes, is respectively the first electrode permanent seat 1 and the second electrode permanent seat 4, and is respectively positive pole and negative pole.
Many electrodes 5 are arranged on the heating member, and 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; Two bendings are all arranged on each electrode 5, make electrode 5 form " Qian " shapes, the anchor ring that the end of electrode 5 constitutes perpendicular to the first electrode permanent seat 1 and the second electrode permanent seat 4 respectively, the connection section of two bending is parallel to this anchor ring.As shown in Figure 1 and Figure 4.
Its mode that is fastenedly connected is in the side of electrode permanent seat, by being threaded electrode 5 fastening (shown in Figure 4).
The end of electrode 5 evenly distributes 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 a plurality of electrodes 5, electrode 5 is distributed on the circular corresponding circumference with described electrode permanent seat, and like this, all electrodes 5 constitute cylindrical in shape.By electrode fixedly outer shroud 2 and electrode fixing in ring 3 in columniform lateral location that electrode 5 is fixing; As shown in Figure 1 and Figure 4.
Electrode fixedly outer shroud 2 and electrode fixing in ring 3 also the same with the second electrode permanent seat 4 with the first electrode permanent seat 1, be two semicircles, make the positive pole of electrode, negative pole at this place conducting not take place.Electrode fixedly outer shroud 2 and electrode fixing in ring 3 at this columniform axis direction many groups are set.Be provided with 5 groups as shown in Figure 1, play good fixed action.
Also can find out in Fig. 2 and Fig. 3: the quantity of electrode 5 is 24, is divided into 6 groups, and 4 every group, the connection section of two bendings on the electrode 5 in every group is parallel to each other; Each bending connection section axis in columniform bottom of organizing electrode 5 forms three layers, staggers mutually.In plane projection, 6 groups of electrodes 5 have 4 groups of formation " well " font, in addition two groups with described " well " one side any of word is 45 ° of angles.
Adopt insulating material that the first electrode permanent seat 1 and the second electrode permanent seat 4 are connected and fixed.
The shortcoming of technique scheme is:
1, semicircle electrode of concentric(al) circles is anodal, and another semicircle is negative pole, easily causes the elongated cylindrical heating inhomogeneous, in the crucible the cold heart of aluminium sesquioxide liquid float indefinite, the seeding difficulty of sowing;
2, the heating element bottom concentric disc little (i.e. described " well " font in the middle of space) that crosses can only be laid tungsten, molybdenum support stick than minor diameter, and high temperature causes insufficient strength, so that crucible tilts, and quality and security incident take place;
3, because heating element is yielding, need veteran technician to adjust after whenever driving a stove; Wanted for 5~8 years and cultivate so veteran technician, so be difficult in scale operation, apply.
The utility model content
The utility model provides the heating electrode in a kind of kyropoulos production unit of sapphire crystal, its objective is optimization production technology and improves the working condition of equipment.
To achieve these goals, the technical scheme taked of the utility model is:
Heating electrode in the kyropoulos production unit of this sapphire crystal of the present utility model comprises a plurality of electrodes 5, two electrode permanent seats, also is provided with the electrode fixed ring, and described electrode 5 is fastenedly connected with described electrode permanent seat; Be equipped with two bendings on each electrode 5, make it form three sections, i.e. interlude and two side section parallel to each other, the two ends of described electrode 5 are vertical with the end face of described electrode permanent seat; Described two electrode permanent seats are annular, and coaxial line distributes; Described electrode 5 with the concentric circle of described annular on, staggered be connected with two described electrode permanent seats, and the end face that two electrode permanent seats are connected with electrode 5 staggers at the axis of described annular; The two ends of each described electrode are connected with two electrode permanent seats respectively; Two sections length parallel to each other on the described electrode 5 is unequal.
Described two electrode permanent seats are respectively negative pole permanent seat 2 and anodal permanent seat 3, and an end of each described electrode 5 passes described negative pole permanent seat 3, are fastenedly connected with described anodal permanent seat 2.
Described electrode fixed ring is respectively negative pole fixed ring 1 and anodal fixed ring 4, and is annular; On the plane perpendicular to electrode permanent seat axis, described electrode fixed ring compartment of terrain is connected with described electrode 5.
Described electrode 5 is divided into six groups, constitutes six electrode groups, and the quantity of electrode 5 equates in each electrode group; The interlude of the electrode 5 in every group is parallel to each other, makes interior on the same group long side section all adjacent, and short side section is all adjacent.
Described six electrode groups evenly distribute on the circumference of electrode permanent seat alternately.
The utility model adopts technique scheme, and the positive and negative end of electrode alternately distributes at circumference, and the elongated cylindrical that electrode forms is generated heat evenly, and the cold heart of aluminium sesquioxide liquid is determined easily in the crucible, and seeding is sowed easily, and the heating element distortion is lacked; The heating element bottom concentric disc that crosses is big, can lay larger-diameter tungsten, molybdenum support stick, guarantees that crucible does not tilt; Because the distortion that heating element of the present utility model is whenever opened behind the stove is few, can make kyropoulos (being the KY method) produce the long brilliant technology that forms of sapphire and optimize more, be convenient in scale operation, promote.In addition, the utility model also has the following advantages: if 1 hold in both hands when intersecting in design heating, cause short circuit for fear of colliding each other, and one group of heating bar is lengthened to avoid to collide each other, the difference that causes the longest heating bar and the shortest heating to hold in both hands length like this has about 150mm, causes every heating bar thermal value and temperature variant; The utility model arranges difference by electrode side section length, make every group of electrode just intersect, improved the length consistence of single heating bar, the difference that length is held in both hands in the heating bar that the ratio design is the longest and the shortest heating has reduced 40mm, improve the consistence of every heating bar thermal value, reduced temperature contrast; 2, the anodal fixed electorde of heating element, negative plate fixed electorde are connected with the positive and negative electrode of equipment from original connection from the bottom up and change connection from top to bottom into, have improved the accessibility of connection.
Description of drawings
Below the expressed content of each width of cloth accompanying drawing of this specification sheets and the mark among the figure are made brief description:
Fig. 1 is the heating member structural representation described in the background technology;
Fig. 2 is the schematic top plan view of structure shown in Figure 1;
Fig. 3 is the elevational schematic view of structure shown in Figure 1;
Fig. 4 is the sectional structure synoptic diagram of electrode permanent seat among Fig. 1;
Fig. 5 is the schematic top plan view of structure shown in Figure 6;
Fig. 6 is structural representation of the present utility model;
Fig. 7 is the elevational schematic view of structure shown in Figure 6;
Fig. 8 is the cross-sectional schematic at electrode fixed ring place among Fig. 6;
Fig. 9 is the synoptic diagram of the electrode plane state among Fig. 6;
Figure 10 is the sectional structure synoptic diagram of electrode permanent seat among Fig. 6;
Figure 11 is the synoptic diagram of another direction of structure shown in Figure 6;
Figure 12 is the size synoptic diagram of structure shown in Figure 5;
Figure 13 is the length dimension differential intention of the two sides section of electrode.
Being labeled as among Fig. 1 to Fig. 4:
1, the first electrode permanent seat, 2, the fixing outer shroud of electrode, 3, electrode fixing in ring, 4, the second electrode permanent seat, 5, electrode.
Being labeled as among Fig. 5 to Figure 10:
1, negative pole fixed ring, 2, the negative pole permanent seat, 3, anodal permanent seat, 4, anodal fixed ring, 5, electrode.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail, to help those skilled in the art inventive concept of the present utility model, technical scheme are had more complete, accurate and deep understanding.
As Fig. 5 to structure of the present utility model shown in Figure 10, be the heating electrode in a kind of kyropoulos (KY method) production unit of sapphire crystal, comprise a plurality of electrodes 5, two electrode permanent seats, also be provided with the electrode fixed ring, described electrode 5 is fastenedly connected with described electrode permanent seat; Be equipped with two bendings on each electrode 5, make it form three sections, i.e. interlude and two side section parallel to each other, the two ends of described electrode 5 are vertical with the end face of described electrode permanent seat.In kyropoulos is produced, very high to the stability requirement of the cold heart, because seed crystal begins to grow and depends on the stable cold heart.
On this basis, in order to solve the problem that prior art exists and to overcome its defective, realize optimization production technology and improve the goal of the invention of the working condition of equipment that the technical scheme that the utility model is taked is:
Extremely shown in Figure 10 as Fig. 1, the heating electrode in the kyropoulos production unit of this sapphire crystal of the present utility model, described two electrode permanent seats are annular, and coaxial line distributes; Described electrode 5 with the concentric circle of described annular on, staggered be connected with two described electrode permanent seats, and the end face that two electrode permanent seats are connected with electrode 5 staggers at the axis of described annular; The two ends of each described electrode are connected with two electrode permanent seats respectively;
As shown in Figure 9, the length of two side section parallel to each other is unequal on the described electrode 5.The utility model arranges difference by electrode side section length, make every group of electrode just intersect, improved the length consistence of single heating bar, the difference that length is held in both hands in the heating bar that the ratio design is the longest and the shortest heating has reduced 40mm, improve the consistence of every heating bar thermal value, reduced temperature contrast.
On the cross section of described a plurality of electrodes 5, electrode 5 is distributed on the circular corresponding circumference with described electrode permanent seat, and like this, all electrodes 5 constitute cylindrical in shape.
Principle of work of the present utility model is: when positive source inserts from this heating element is anodal, through being fixed on the tungsten bar on the positive pole, passing negative pole (negative pole empty avoiding) and back arrive the negative pole shaft collar to the bottom.Low voltage, big electric current produce heat, the work of beginning thermal field.
The positive and negative end of electrode alternately distributes at circumference, and the elongated cylindrical heating that electrode forms is even, and the cold heart of aluminium sesquioxide liquid is determined easily in the crucible, and seeding is sowed easily, and the heating element distortion is few.Therefore, optimized kyropoulos production technique and improve the working condition of equipment.Because the distortion that heating element of the present utility model is whenever opened behind the stove is few, can make KY method (being kyropoulos) produce the long brilliant technology that forms of sapphire, be convenient in scale operation, promote.
As Fig. 7, Fig. 8 and shown in Figure 10, described two electrode permanent seats are respectively negative pole permanent seat 2 and anodal permanent seat 3, one end of each described electrode 5 passes described negative pole permanent seat 2(i.e. above-described " negative pole empty avoiding "), be fastenedly connected with described anodal permanent seat 3.Arrange accordingly through hole on the negative pole permanent seat 2 greater than the diameter of electrode 5, can not collide its assurance.
As shown in Figure 5 and Figure 6, described electrode fixed ring is respectively negative pole fixed ring 1 and anodal fixed ring 4, and is annular; On the plane perpendicular to electrode permanent seat axis, described electrode fixed ring compartment of terrain is connected with described electrode 5.
In columniform lateral location that electrode 5 is fixing by negative pole fixed ring 1 and anodal fixed ring 4.Shown in Figure 6, six groups of fixed rings are set altogether, every group of fixed ring has a negative pole fixed ring 1 and an anodal fixed ring 4, and the fixed electorde 5 that staggers is respectively avoided circuit conducting on fixed ring.
As Fig. 5 and shown in Figure 7:
Described electrode 5 is divided into six groups, constitutes six electrode groups, and the quantity of electrode 5 equates in each electrode group; The interlude of the electrode 5 in every group is parallel to each other, makes interior on the same group long side section all adjacent, and short side section is all adjacent.
Described six electrode groups evenly distribute on the circumference of electrode permanent seat alternately.
Electrode 5 shown in the figure has 30, is divided into six groups, so every group is 5.Six groups of electrode proximates constitute regular hexagon.The permanent seat of available technology adopting semicircle just can't be accomplished.Like this, the heating element bottom concentric disc that crosses is big, has in fact formed a hexagonal passage down, and area is much bigger, can lay larger-diameter tungsten, molybdenum support stick, guarantees that crucible does not tilt;
Extremely shown in Figure 7 as Fig. 5, the connection section of two bendings of all electrodes 5 on described each equilateral triangle, be interlude, distribute in one plane, therefore, by electrode side section length difference is set, make every group of electrode just intersect, improved the length consistence of single heating bar, the difference of holding in both hands length than the longest heating bar of design and the shortest heating has reduced 40mm, improve the consistence of every heating bar thermal value, reduced temperature contrast.
As can be seen from Figure 10: the anodal fixed electorde of heating element, negative plate fixed electorde are connected with the positive and negative electrode of equipment from original connection from the bottom up and change connection from top to bottom into, have improved the accessibility of connection.
Figure 11 has provided the view of another direction of structure shown in Fig. 6.The total length of above-mentioned heating electrode is 903mm.
In Figure 12 and Figure 13, provided the concrete size that the utility model enforcement is adopted.Following table has provided the length overall size of electrode, and by the width dimensions that provides among Figure 12, the length overall size of its electrode is respectively:
Width |
Quantity |
Length overall |
327.08 |
6 |
2050.08 |
303.09 |
6 |
2026.09 |
275.77 |
6 |
1998.77 |
245.43 |
6 |
1968.43 |
212.41 |
6 |
1935.41 |
The unit of size is millimeter (mm) in above size and the accompanying drawing.
By reference to the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.