CN207290574U - Square silicon core cone hole machine frock - Google Patents
Square silicon core cone hole machine frock Download PDFInfo
- Publication number
- CN207290574U CN207290574U CN201721304649.8U CN201721304649U CN207290574U CN 207290574 U CN207290574 U CN 207290574U CN 201721304649 U CN201721304649 U CN 201721304649U CN 207290574 U CN207290574 U CN 207290574U
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- silicon core
- hole machine
- cone hole
- core cone
- connecting portion
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Abstract
A kind of side's silicon core cone hole machine frock is the utility model is related to, it includes columned connecting portion（1）, the connecting portion（1）Back segment is provided with connection screw thread（7）, the connecting portion（1）Front end is provided with limit round table（2）, the limit round table（2）The bore portion of frustum is provided with front end face（3）, the bore portion（3）Front end face offers centre bore（5）, the bore portion（3）Spiral helicine chip space is offered on outer wall（4）, the bore portion（3）Front end face and outside wall surface be frosting.A kind of side's silicon core cone hole machine frock of the utility model, its is simple in structure, and design is reasonable, the success rate and quality of the side's of can effectively ensure that silicon core cone hole machine, while the also production efficiency of the side's of greatly improving silicon core cone hole machine.
Description
Technical field
A kind of side's silicon core cone hole machine frock is the utility model is related to, belongs to technical field of polysilicon production.
Background technology
At present, it is all the conventional hydrogen reduction of trichlorosilane that the technique of domestic production polysilicon is most of at present, i.e. improvement west
The capital equipment of Men Zifa, improved Siemens or other similar approach production major diameter polysilicon is polycrystalline silicon reducing furnace, more
Crystal silicon reduction furnace is electrified on elongated silicon core, is made the heating of silicon core rubescent, until surface temperature reaches 1100 degrees Celsius, is led to
Enter high-purity trichlorosilane and hydrogen, make it that hydrogen reduction reaction occur at high temperature, the silicon packing of molecules in trichlorosilane is existed
On silicon core, its diameter is set constantly to increase, in general, it can also be square that the diameter of silicon core, which at 7-10 millimeters, can be circle,
Or other shapes, diameter is constantly increased to 120-200 millimeters eventually through hydrogen reduction reaction, produce high-purity solar energy
The polysilicon device of level 6N or electron level 11N can not be suitable for the test of square silicon core in factory.
The preparation method of silicon core has two kinds at present, and traditional method is to use CZ methods（Melt czochralski method in area）, i.e., diameter in 20-
50 millimeters of silicon rod uses high-frequency induction heating in the vacuum hearth full of inert gas, makes its top local melting, from top
Seed crystal of 1 diameter at 5-10 millimeters is put into, then slowly lifting upwards, becomes diameter at 7-10 millimeters, length exists
Elongated silicon core between 1900-3000 millimeters, the drawback is that pull rate is slow, is generally 8-12 mm/mins, draws 12 meters
Silicon core need 4 it is small when, low production efficiency, power consumption is big, and equipment investment is big.
Another kind is to use diamond tool patterning method, and Diamond Wire Technology companies of the U.S. develop use
The elongated silicon multiline cutting machine of numerical-control polysilicon of diamond wire, the preparation for silicon core.By using the upper diamond of plating
The finer wire line of particulate is moved back and forth at high speed on workpiece to be machined or unidirectional movement, and silicon rod is pressed in the lathe diamond
Line intersects on the square gauze of composition, so that the silicon rod to be cut into elongated silicon core.Its advantage is fairly obvious, when 10-12 is small
200 or so 2 meters long 7X7 or 8X8 millimeters of square silicon core can be cut out, power consumption is small, high in machining efficiency.
In the actual production process, square silicon core and the binding of crossbeam silicon core generally use molybdenum filament are fixed for the square silicon core after cutting at present
Position come prevent crossbeam silicon core slide, not only crossbeam silicon core is easily subjected to displacement shake to this mode, but also molybdenum filament also can be to silicon rod
Production pollutes, and in addition when tearing stove open and taking rod, molybdenum filament is also isolated from product, improves workload and work difficulty,
Reduce product quality.
The utility model patent of Application No. 201520979648.8 discloses a kind of polysilicon side's silicon core and its overlap joint knot
Structure, it sets cone boss on square silicon core body top, conical through-hole is opened up on crossbeam silicon core, square silicon core leads to crossbeam silicon core
Cross cone boss and conical through-hole is connected, can effectively prevent crossbeam silicon core to be subjected to displacement shake, reduce follow-up
The workload and work difficulty of silicon rod production, improve end product quality, solve traditional molybdenum filament binding positioning well and deposit
The problem of.But since the material of silicon core is more crisp, during frustum and taper hole are processed in actual production, often easily go out
Existing product rejection, production efficiency is also more low, and processing quality is also difficult to ensure that.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of side's silicon core cone hole machine for the above-mentioned prior art
Frock, its is simple in structure, and design is reasonable, the success rate and quality of the side's of can effectively ensure that silicon core cone hole machine, while also significantly
The production efficiency of raising side's silicon core cone hole machine.
The technical scheme in the invention for solving the above technical problem is：A kind of side's silicon core cone hole machine frock, it is wrapped
Columned connecting portion is included, the connecting portion back segment is provided with connection screw thread, and the connecting portion front end is provided with limit round table, institute
The bore portion that frustum is provided with limit round table front end face is stated, the bore portion front end face offers centre bore, the drilling
Spiral helicine chip space is offered on portion's outer wall, the front end face and outside wall surface of the bore portion are frosting.
The limit round table front and rear sides are provided with spacing plane.
Compared with prior art, the utility model has the advantage of：
A kind of side's silicon core cone hole machine frock of the utility model, its is simple in structure, and design is reasonable, the side's of can effectively ensure that silicon
The success rate and quality of core cone hole machine, while the also production efficiency of the side's of greatly improving silicon core cone hole machine.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of side's silicon core cone hole machine frock of the utility model.
Fig. 2 is a kind of structure diagram at another visual angle of side's silicon core cone hole machine frock of the utility model.
Wherein：
Connecting portion 1
Limit round table 2
Bore portion 3
Chip space 4
Centre bore 5
Spacing plane 6
Connection screw thread 7.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in Figure 1 and Figure 2, a kind of side's silicon core cone hole machine frock in the present embodiment, it includes columned connecting portion
1,1 back segment of connecting portion is provided with connection screw thread 7, and 1 front end of connecting portion is provided with limit round table 2, the limit round table 2
The bore portion 3 of frustum is provided with front end face, 3 front end face of bore portion offers centre bore 5,3 outer wall of bore portion
On offer spiral helicine chip space 4, the front end face and outside wall surface of the bore portion 3 are frosting；
2 front and rear sides of limit round table are provided with spacing plane 6.
In addition to the implementation, the utility model has further included other embodiment, all to use equivalents or equivalent
The technical solution that substitute mode is formed, should all fall within the protection domain of the utility model claims.
Claims (2)
- A kind of 1. side's silicon core cone hole machine frock, it is characterised in that：It includes columned connecting portion（1）, the connecting portion（1） Back segment is provided with connection screw thread（7）, the connecting portion（1）Front end is provided with limit round table（2）, the limit round table（2）Front end The bore portion of frustum is provided with face（3）, the bore portion（3）Front end face offers centre bore（5）, the bore portion（3） Spiral helicine chip space is offered on outer wall（4）, the bore portion（3）Front end face and outside wall surface be frosting.
- A kind of 2. side's silicon core cone hole machine frock according to claim 1, it is characterised in that：The limit round table（2）Before Both sides are provided with spacing plane afterwards（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721304649.8U CN207290574U (en) | 2017-10-11 | 2017-10-11 | Square silicon core cone hole machine frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721304649.8U CN207290574U (en) | 2017-10-11 | 2017-10-11 | Square silicon core cone hole machine frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207290574U true CN207290574U (en) | 2018-05-01 |
Family
ID=62414734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721304649.8U Active CN207290574U (en) | 2017-10-11 | 2017-10-11 | Square silicon core cone hole machine frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207290574U (en) |
-
2017
- 2017-10-11 CN CN201721304649.8U patent/CN207290574U/en active Active
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| GR01 | Patent grant |