CN105839175A - Method for increasing length of graphite guide cylinder - Google Patents
Method for increasing length of graphite guide cylinder Download PDFInfo
- Publication number
- CN105839175A CN105839175A CN201610308309.6A CN201610308309A CN105839175A CN 105839175 A CN105839175 A CN 105839175A CN 201610308309 A CN201610308309 A CN 201610308309A CN 105839175 A CN105839175 A CN 105839175A
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- China
- Prior art keywords
- lengthening
- lengthened
- graphite
- guide shell
- cylinder
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
Abstract
The invention relates to a method for increasing the length of a graphite guide cylinder. The method comprises the following steps that firstly, a graphite guide cylinder to be lengthened is polished; secondly, a backup lengthening cylinder is machined; thirdly, assembling is carried out, wherein the graphite guide cylinder to be lengthened obtained in the first step is put on the upper end face of the backup lengthening cylinder obtained in the second step, the central axes of the graphite guide cylinder to be lengthened and the backup lengthening cylinder coincide, and an assembled body is obtained; fourthly, a connecting piece is additionally arranged, wherein a plurality of threaded holes evenly distributed in the radial direction are machined in the lower end face of the assembled body and comprise lengthening cylinder threaded hole sections penetrating through the lengthening cylinder and guide cylinder threaded hole sections drilled into the guide cylinder to be lengthened, and graphite harness cords are screwed in and tightened; fifthly, the graphite harness cords are polished. According to the technical scheme, operation is easy, cost is low, and normal use is not influenced after the guide cylinder is lengthened. According to calculation, the price for replacing a guide cylinder is 10000 yuan or above while the cost for maintaining a guide cylinder is only around 300 yuan, and thus great significance is achieved on reducing production cost and improving production benefits.
Description
Technical field
The present invention relates to a kind of method lengthening graphite guide flow cartridge length, belong to photovoltaic field.
Background technology
At present, the preparation major part of monocrystalline silicon uses and cuts krousky (Czochralski) vertical pulling method.In the thermal field of single crystal growing furnace, the top of quartz crucible is placed with graphite guide flow cartridge, on the one hand plays the effect dredging argon gas stream；On the other hand the heater radiation to monocrystalline is reduced.In single crystal growth process, the position of quartz crucible gradually rises along with the minimizing of silicon liquid, until silicon liquid pulls.The volume of quartz crucible decides the size of single crystal growing furnace production capacity, if the height of quartz crucible to be increased will increase the length of guide shell.Graphite guide flow cartridge uses a monoblock graphite material to process, because the most not adapting to quartz crucible height, so quartz crucible height will necessarily eliminate a collection of shorter guide shell after increasing, owing to graphite product price is higher, so can cause the biggest waste.
In view of this, need to invent a kind of method that graphite guide flow cartridge can be made to make full use of.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, it is provided that a kind of simple to operate method lengthening graphite guide flow cartridge length, making full use of of its graphite guide flow cartridge that can realize eliminating, superseded graphite guide flow cartridge is lengthened.
To achieve these goals, the technical scheme that the present invention takes is as follows:
A kind of method lengthening graphite guide flow cartridge length, its key technology point is, it comprises the steps:
(1) guide shell to be lengthened polishing
Utilize lathe that the bottom car of guide shell to be lengthened is worn into plane, standby；
(2) processing of standby lengthening cylinder
Process lengthening cylinder, its upper surface is polished into plane, the external lower margin of its lower surface is processed into radius 25mm circular arc, obtain standby lengthening cylinder；
(3) assemble
The guide shell to be lengthened that step (1) obtains is positioned on the upper surface of the standby lengthening cylinder that step (2) obtains, makes both central shafts overlap, obtain assembly；
(4) connector is installed additional
Process the screwed hole of multiple radial equipartitions from the lower surface of assembly, screwed hole includes penetrating the lengthening cylinder screwed hole section lengthening cylinder and the guide shell screwed hole section pierced in guide shell to be lengthened, and screws in graphite harness cord, tightens；
(5) polishing graphite harness cord
Polish smooth lengthening exposed graphite harness cord outside circle,.
Further improving as the present invention, after screwing in graphite harness cord in step (4), the angle making inwall and horizontal plane of polishing the inwall lengthening cylinder and guide shell to be lengthened is more than the original inwall of guide shell to be lengthened and the angle of horizontal plane.
Further improving as the present invention, the car mill height of described step (1) is so that the plane of formation is suitably processed screw hole and is advisable.
Further improving as the present invention, the width of the ring plain formed after described step (1) car mill is at least the twice of screw hole diameter, and the guide shell screwed hole section meeting processing does not penetrates through guide shell.
Further improve as the present invention, after described step (4) screws in graphite harness cord, polishing the inwall lengthening cylinder and guide shell to be lengthened, make inwall form an inclined plane, the internal diameter meeting the lower surface lengthening cylinder is consistent with the former internal diameter of guide shell to be lengthened.
Further improving as the present invention, it comprises the steps:
(1) guide shell to be lengthened polishing
Lathe is utilized to go 10mm, lower surface to wear into plane in the bottom car of guide shell to be lengthened, standby；
(2) processing of standby lengthening cylinder
Processing lengthening cylinder, its upper surface is polished into plane, the external lower margin of its lower surface is processed into radius 25mm circular arc, obtain standby lengthening cylinder, standby lengthening cylinder determines height on request；
(3) assemble
The guide shell to be lengthened that step (1) obtains is positioned on the upper surface of the standby lengthening cylinder that step (2) obtains, makes both central shafts overlap, obtain assembly；
(4) connector is installed additional
M10 screwed hole from six radial equipartitions of the lower surface of assembly processing, screwed hole includes penetrating lengthening cylinder screwed hole section 30mm lengthening cylinder and guide shell screwed hole section 15mm pierced in guide shell to be lengthened, the screw-in length 10M graphite harness cord more than 45mm in screwed hole, then the inwall lengthening cylinder and guide shell to be lengthened is polished, making inwall form an inclined plane, the internal diameter meeting the lower surface lengthening cylinder is consistent with the former internal diameter of guide shell to be lengthened；
(5) polishing graphite harness cord
Polish smooth lengthening exposed graphite harness cord outside circle,.
Compared with prior art, having the beneficial effect that acquired by the present invention:
Method provided by the present invention can make to eliminate the guide shell got off not because of length and be fully used, and lengthens cylinder by making, utilizes graphite harness cord to fix, make guide shell length to adjust according to actual needs.Making the guide shell that will scrap again realize use value, technical scheme provided by the present invention is simple to operate, and cost is low, does not affect normal use after lengthening.Through adjusting, the price of one guide shell of replacing is more than ten thousand yuan, and the cost of one guide shell of maintenance is only at about 300 yuan, for reducing production cost, improves productivity effect and has a very big significance.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is the structural representation of the embodiment of the present invention 1；
In the accompanying drawings: 100 guide shells to be lengthened, 200 lengthening cylinder, 300 graphite harness cords, 400 screwed holes.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 and specific embodiment, the present invention is carried out further details of narration.
Embodiment 1
(1) guide shell to be lengthened polishing
Lathe is utilized to go 10mm, lower surface to wear into plane in the bottom car of the guide shell to be lengthened 100 of high 335mm, standby；
(2) processing of standby lengthening cylinder
Processing lengthening cylinder, its upper surface is polished into plane, the external lower margin of its lower surface is processed into radius R25mm circular arc, obtain standby lengthening cylinder, the height of standby lengthening cylinder 200 is 30mm；
(3) assemble
The guide shell to be lengthened that step (1) obtains is positioned on the upper surface of the standby lengthening cylinder that step (2) obtains, makes both central shafts overlap, obtain assembly；
(4) connector is installed additional
The M10 screwed hole 400 that the degree of depth is 45mm from six radial equipartitions of the lower surface of assembly processing, screwed hole 400 includes penetrating lengthening cylinder screwed hole section 30mm lengthening cylinder and guide shell screwed hole section 15mm pierced in guide shell to be lengthened, in screwed hole, then the inwall lengthening cylinder and guide shell to be lengthened is polished by the screw-in length 10M graphite harness cord 300 more than 45mm, the angle that internal diameter is 260mm, inwall and horizontal plane making the lower surface of lengthening cylinder is 79 ° 18 '；
(5) polishing
Polishing smooth lengthening exposed graphite harness cord outside circle, wedge angle rounding R0.5, i.e. available height is the lengthening graphite guide flow cartridge of 355mm.
Comparative example 1
Making height is the one guide shell of 355mm, and different from embodiment 1 is that it is integrated design, and the arc radius of the external lower margin of other parameters such as lower surface is R25mm, and the internal diameter of lower surface is that 260mm etc. is all identical in embodiment 1.
Effect example 1
The guide shell obtained by embodiment 1 and comparative example 1 carries out the processing of monocrystalline silicon, and the performance parameters of process and monocrystalline silicon is as shown in table 1.
Table 1
| Performance indications | The using effect of embodiment 1 guide shell | The using effect of comparative example 1 guide shell |
| Isometrical average pull rate | 1.05mm/min | 1.05mm/min |
| Crystal forming rate | 80% | 80% |
By upper table result it can be seen that utilize guide shell that embodiment 1 obtains and monocrystalline silicon indifference in performance that comparative example 1 obtains, the guide shell that can substitute conventional one produces.
The invention provides a kind of method lengthening guide shell so that the length of guide shell can be adjusted according to actual needs, open a kind of new approaches.
The above embodiment is only the preferred embodiments of the present invention, and and the feasible enforcement of non-invention exhaustive.For persons skilled in the art, any obvious change done to it on the premise of without departing substantially from the principle of the invention and spirit, within all should being contemplated as falling with the claims of the present invention.
Claims (6)
1. the method lengthening graphite guide flow cartridge length, it is characterised in that it comprises the steps:
(1) guide shell to be lengthened polishing
Utilize lathe that the bottom car of guide shell to be lengthened is worn into plane, standby；
(2) processing of standby lengthening cylinder
Process lengthening cylinder, its upper surface is polished into plane, the external lower margin of its lower surface is processed into radius 25mm circular arc, obtain standby lengthening cylinder；
(3) assemble
The guide shell to be lengthened that step (1) obtains is positioned on the upper surface of the standby lengthening cylinder that step (2) obtains, makes both central shafts overlap, obtain assembly；
(4) connector is installed additional
Process the screwed hole of multiple radial equipartitions from the lower surface of assembly, screwed hole includes penetrating the lengthening cylinder screwed hole section lengthening cylinder and the guide shell screwed hole section pierced in guide shell to be lengthened, and screws in graphite harness cord, tightens；
(5) polishing graphite harness cord
Polish smooth lengthening exposed graphite harness cord outside circle,.
A kind of method lengthening graphite guide flow cartridge length the most according to claim 1, it is characterized in that, after screwing in graphite harness cord in step (4), the angle making inwall and horizontal plane of polishing the inwall lengthening cylinder and guide shell to be lengthened is more than the original inwall of guide shell to be lengthened and the angle of horizontal plane.
A kind of method lengthening graphite guide flow cartridge length the most according to claim 1, it is characterised in that the car mill height of described step (1) is so that the plane of formation is suitably processed screw hole and is advisable.
A kind of method lengthening graphite guide flow cartridge length the most according to claim 1, it is characterized in that, the width of the ring plain formed after described step (1) car mill is at least the twice of screw hole diameter, and the guide shell screwed hole section meeting processing does not penetrates through guide shell.
A kind of method lengthening graphite guide flow cartridge length the most according to claim 1, it is characterized in that, after described step (4) screws in graphite harness cord, the inwall lengthening cylinder and guide shell to be lengthened is polished, making inwall form an inclined plane, the internal diameter meeting the lower surface lengthening cylinder is consistent with the former internal diameter of guide shell to be lengthened.
6. according to a kind of method lengthening graphite guide flow cartridge length described in any one of claim 1-5, it is characterised in that it comprises the steps:
(1) guide shell to be lengthened polishing
Lathe is utilized to go 10mm, lower surface to wear into plane in the bottom car of guide shell to be lengthened, standby；
(2) processing of standby lengthening cylinder
Processing lengthening cylinder, its upper surface is polished into plane, the external lower margin of its lower surface is processed into radius 25mm circular arc, obtain standby lengthening cylinder, standby lengthening cylinder determines height on request；
(3) assemble
The guide shell to be lengthened that step (1) obtains is positioned on the upper surface of the standby lengthening cylinder that step (2) obtains, makes both central shafts overlap, obtain assembly；
(4) connector is installed additional
M10 screwed hole from six radial equipartitions of the lower surface of assembly processing, screwed hole includes penetrating lengthening cylinder screwed hole section 30mm lengthening cylinder and guide shell screwed hole section 15mm pierced in guide shell to be lengthened, the screw-in length 10M graphite harness cord more than 45mm in screwed hole, then the inwall lengthening cylinder and guide shell to be lengthened is polished, making inwall form an inclined plane, the internal diameter meeting the lower surface lengthening cylinder is consistent with the former internal diameter of guide shell to be lengthened；
(5) polishing graphite harness cord
Polish smooth lengthening exposed graphite harness cord outside circle,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308309.6A CN105839175A (en) | 2016-05-11 | 2016-05-11 | Method for increasing length of graphite guide cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308309.6A CN105839175A (en) | 2016-05-11 | 2016-05-11 | Method for increasing length of graphite guide cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN105839175A true CN105839175A (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610308309.6A Pending CN105839175A (en) | 2016-05-11 | 2016-05-11 | Method for increasing length of graphite guide cylinder |
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| Country | Link |
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| CN (1) | CN105839175A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201864791U (en) * | 2010-12-06 | 2011-06-15 | 浙江芯能光伏科技有限公司 | Graphite guiding cylinder of 800 type silicon single crystal furnace |
| CN201901721U (en) * | 2010-12-08 | 2011-07-20 | 宁晋晶兴电子材料有限公司 | Granite guide cylinder hanging device |
| CN203923448U (en) * | 2014-06-20 | 2014-11-05 | 河北宁通电子材料有限公司 | A kind of suspension type guide shell |
| CN104357897A (en) * | 2014-11-06 | 2015-02-18 | 邢台晶龙电子材料有限公司 | Method for repairing crucible rod of single-crystal furnace |
-
2016
- 2016-05-11 CN CN201610308309.6A patent/CN105839175A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201864791U (en) * | 2010-12-06 | 2011-06-15 | 浙江芯能光伏科技有限公司 | Graphite guiding cylinder of 800 type silicon single crystal furnace |
| CN201901721U (en) * | 2010-12-08 | 2011-07-20 | 宁晋晶兴电子材料有限公司 | Granite guide cylinder hanging device |
| CN203923448U (en) * | 2014-06-20 | 2014-11-05 | 河北宁通电子材料有限公司 | A kind of suspension type guide shell |
| CN104357897A (en) * | 2014-11-06 | 2015-02-18 | 邢台晶龙电子材料有限公司 | Method for repairing crucible rod of single-crystal furnace |
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| PB01 | Publication | ||
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Application publication date: 20160810 |