CN103692563A - Polycrystalline silicon chip cutting method capable of saving steel wire - Google Patents
Polycrystalline silicon chip cutting method capable of saving steel wire Download PDFInfo
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- CN103692563A CN103692563A CN201310618302.0A CN201310618302A CN103692563A CN 103692563 A CN103692563 A CN 103692563A CN 201310618302 A CN201310618302 A CN 201310618302A CN 103692563 A CN103692563 A CN 103692563A
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Abstract
The invention discloses a polycrystalline silicon chip cutting method capable of saving a steel wire. A cutting steel wire is coiled in from a wire inlet guide wheel and coiled out from a wire outlet guide wheel through a front pulley after being released from a wire releasing wheel and is coiled on a wire retracting wheel through a rear pulley, an electric appliance control system comprises the wire releasing wheel, the wire inlet guide wheel, the wire outlet guide wheel and the wire retracting wheel, a steel wire transmission mechanism drives the cutting steel wire to do high-speed forward and reverse interval alternating linear motion so as to cut a polycrystalline silicon ingot, and the rotating directions of the wire releasing wheel, the wire inlet guide wheel, the wire outlet guide wheel and the wire retracting wheel can be alternately controlled by the electric appliance control system during a cutting process. The steel wire transmission mechanism is driven to rotate in 0.55-0.65 unit time according to an anticlockwise direction by the electric appliance control system after the steel wire transmission mechanism rotates in a unit time according to a clockwise direction, the rotation can be recurrently carried out in such a way, not only can the using amount of the cutting steel wire be reduced, but also the cutting action of silicon carbide cutting particles in mortar can be fully utilized, thus the using amount of the mortar is saved, and the processing cost of a polycrystalline silicon chip is reduced.
Description
Technical field
The present invention relates to a kind of process technology of polysilicon chip, relate in particular to a kind of cutting technique of solar energy polycrystalline silicon sheet.
Background technology
Solar energy polycrystalline silicon sheet is the main raw material of solar battery sheet.The conventional production method of polysilicon chip is multi-wire saw.Multi-wire saw completes by slicer, on slicer, be provided with assembly pulley, actinobacillus wheel, cable guide pulley and take-up pulley, cutting steel wire is emitted through assembly pulley, cable guide pulley, by take-up pulley rolling from take-up pulley, thereby drive cutting steel wire to make at the uniform velocity traveling priority, cutting steel wire carries the mortar that flows down from mortar curtain to the crystal bar cutting of polishing when fast moving, thereby crystal bar is cut into silicon chip.In existing cutting technique, cutting steel wire adopts the mode of the unidirectional cutting of unidirectional inlet wire, be steel wire by actinobacillus wheel through assembly pulley from guide wheel head inlet wire, at the guide wheel afterbody outlet assembly pulley of going forward side by side, be wrapped in take-up pulley, cutting steel wire inlet wire direction is single, the cutting steel wire that cutting finishes on rear take-up pulley is no longer reused, so cutting steel wire cost is higher.
Summary of the invention:
The object of this invention is to provide a kind of polysilicon chip cutting method of saving steel wire, in the process of multiline cut silicon chips, adopt forward inlet wire to be greater than the mode of the two-way inlet wire cutting of reverse inlet wire, it can reduce the consumption of cutting steel wire, can make full use of again the dissection of the carborundum cutting particle in mortar, thereby saved the materials of mortar, reduced polysilicon chip processing cost.
The technical scheme that the present invention takes is:
A kind of polysilicon chip cutting method of saving steel wire, it is characterized in that: by prior art by cutting steel wire from actinobacillus wheel is emitted through front wheel again from incoming wire guide wheel inlet wire in outgoing line guide wheel outlet, then through rear wheel, be wrapped on take-up pulley, by electrical apparatus control system, control and comprise actinobacillus wheel, incoming wire guide wheel, the steel wire-driven mechanism of outgoing line guide wheel and take-up pulley drives cutting steel wire forward and reverse interval of high speed between incoming wire guide wheel and outgoing line guide wheel to replace traveling priority, the cutting steel wire of high-speed mobile carries silicon-carbide particle in mortar polycrystal silicon ingot is cut, in cutting process, by electrical apparatus control system, alternately control actinobacillus wheel, incoming wire guide wheel, the rotation direction of outgoing line guide wheel and take-up pulley, in steel wire-driven mechanism by clockwise rotating after the unit interval, electrical apparatus control system is controlled steel wire-driven mechanism and is rotated counterclockwise 0.55～0.65 unit interval, in steel wire-driven mechanism by clockwise rotating in process, cutting steel wire is from actinobacillus wheel unwrapping wire, by take-up pulley take-up, steel wire-driven mechanism rotates counterclockwise in process, and cutting steel wire is from take-up pulley unwrapping wire, by actinobacillus wheel take-up, cycle alternation carries out and so forth.
Further, in the polysilicon chip cutting method of above-mentioned saving steel wire, the cutting speed of cutting steel wire is 10.5-12.5m/s, the feed speed of polycrystal silicon ingot is 0.30-0.35mm/min, the density of described mortar is 1.625-1.635kg/L, the flow of mortar is 85-95L/min, and in mortar, carborundum is multiple edge body particle, and particle full-size is 8～9 microns.
Further, the cutting speed of cutting steel wire is 10.5-11.5m/s, and the feed speed of polycrystal silicon ingot is 0.35mm/min, and the density of described mortar is 1.625kg/L, and the flow of mortar is 85L/min.
Because the present invention is in the cutting process of solar energy polycrystalline silicon sheet, adopt the forward and reverse two way alternate inlet wire of this cutting steel wire cutting mode, and forward inlet wire is greater than reverse inlet wire, so not only realized the repeatedly utilization of cutting steel wire, and the multiple edge body silicon-carbide particle that can make to stick on cutting steel wire can carry out Double Directional Cutting to polycrystal silicon ingot, can make full use of the dissection of the multiple edge body silicon-carbide particle sticking on cutting steel wire, also help chip removal, through actual cutting processing test, adopt the present invention can not only guarantee crudy and the working (machining) efficiency of silicon chip, and can save cutting steel wire 35%～45%, mortar consumption can save 10%, the processing cost of amounting to polysilicon chip can reduce by 0.08～0.10 yuan/sheet, economic benefit is very remarkable.
Accompanying drawing explanation:
Fig. 1 is the drive path schematic diagram of the transmission mechanism of cutting steel wire on multi-line cutting machine;
In figure: 1-actinobacillus wheel; 2-front wheel; 3-incoming wire guide wheel; 4-outgoing line guide wheel; 5-rear wheel;
6-take-up pulley; 7-cutting steel wire.
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
Embodiment 1:
A kind of polysilicon chip cutting method of saving steel wire, as shown in Figure 1, by prior art by cutting steel wire 7 from actinobacillus wheel 1 is emitted through front wheel 2 again from incoming wire guide wheel 3 inlet wires in outgoing line guide wheel 4 outlets, then through rear wheel 5, be wrapped on take-up pulley 6, by electrical apparatus control system, control and comprise actinobacillus wheel 1, incoming wire guide wheel 3, the steel wire-driven mechanism of outgoing line guide wheel 4 and take-up pulley 6 drives cutting steel wire 7 forward and reverse interval of high speed between incoming wire guide wheel 3 and outgoing line guide wheel 4 to replace traveling priority, the cutting steel wire 7 of high-speed mobile carries carborundum in mortar polycrystal silicon ingot is cut, in cutting process, by electric control system, alternately control actinobacillus wheel 1, incoming wire guide wheel 3, the rotation direction of outgoing line guide wheel 4 and take-up pulley 6, at actinobacillus wheel 1, incoming wire guide wheel 3, outgoing line guide wheel 4 and take-up pulley 6 are synchronously by clockwise rotating after the unit interval, control system is controlled actinobacillus wheel 1, incoming wire guide wheel 3, outgoing line guide wheel 4 and take-up pulley 6 synchronously rotate counterclockwise 0.55～0.65 unit interval, guarantee the every inlet wire 1000m of actinobacillus wheel, take-up pulley loop line 350-450m, loop line ratio is 35-45%, in steel wire-driven mechanism by clockwise rotating in process, cutting steel wire 7 is from actinobacillus wheel 1 unwrapping wire, by take-up pulley 6 take-ups, steel wire-driven mechanism rotates counterclockwise in process, cutting steel wire 7 is from take-up pulley 6 unwrapping wire, by actinobacillus wheel 1 take-up, cycle alternation carries out and so forth, in polysilicon chip cutting process, the cutting speed of cutting steel wire 7 is 10.5-12.5m/s, the feed speed of polycrystal silicon ingot is 0.30-0.35mm/min, the density of described mortar is 1.625-1.635kg/L, the flow of mortar is 85-95L/min, in mortar, carborundum is multiple edge body particle, particle full-size is 8～9 microns.
Claims (3)
1. a polysilicon chip cutting method of saving steel wire, it is characterized in that: by prior art by cutting steel wire (7) from actinobacillus wheel (1) is emitted through front wheel (2) again from incoming wire guide wheel (3) inlet wire in outgoing line guide wheel (4) outlet, then passing through rear wheel (5) is wrapped on take-up pulley (6), by electrical apparatus control system, control and comprise actinobacillus wheel (1), incoming wire guide wheel (3), the steel wire-driven mechanism of outgoing line guide wheel (4) and take-up pulley (6) drives cutting steel wire (7) to replace traveling priority in the forward and reverse interval of high speed between incoming wire guide wheel (3) and outgoing line guide wheel (4), the cutting steel wire of high-speed mobile (7) carries silicon-carbide particle in mortar polycrystal silicon ingot is cut, in cutting process, by electrical apparatus control system, alternately control actinobacillus wheel (1), incoming wire guide wheel (3), the rotation direction of outgoing line guide wheel (4) and take-up pulley (6), in steel wire-driven mechanism by clockwise rotating after the unit interval, by electrical apparatus control system, control steel wire-driven mechanism and rotate counterclockwise 0.55～0.65 unit interval, in steel wire-driven mechanism by clockwise rotating in process, cutting steel wire (7) is from actinobacillus wheel (1) unwrapping wire, by take-up pulley (6) take-up, steel wire-driven mechanism rotates counterclockwise in process, and cutting steel wire (7) is from take-up pulley (6) unwrapping wire, by actinobacillus wheel (1) take-up, cycle alternation carries out and so forth.
2. save according to claim 1 the polysilicon chip cutting method of steel wire, it is characterized in that: the cutting speed of cutting steel wire (7) is 10.5-12.5m/s, the feed speed of polycrystal silicon ingot is 0.30-0.35mm/min, the density of described mortar is 1.625-1.635kg/L, the flow of mortar is 85-95L/min, in mortar, carborundum is multiple edge body particle, and particle full-size is 8～9 microns.
3. save according to claim 2 the polysilicon chip cutting method of steel wire, it is characterized in that: the cutting speed of cutting steel wire (7) is 10.5-11.5m/s, the feed speed of polycrystal silicon ingot is 0.35mm/min, and the density of described mortar is 1.625kg/L, and the flow of mortar is 85L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618302.0A CN103692563A (en) | 2013-11-28 | 2013-11-28 | Polycrystalline silicon chip cutting method capable of saving steel wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618302.0A CN103692563A (en) | 2013-11-28 | 2013-11-28 | Polycrystalline silicon chip cutting method capable of saving steel wire |
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| CN103692563A true CN103692563A (en) | 2014-04-02 |
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| CN201310618302.0A Pending CN103692563A (en) | 2013-11-28 | 2013-11-28 | Polycrystalline silicon chip cutting method capable of saving steel wire |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921361A (en) * | 2014-04-29 | 2014-07-16 | 南通综艺新材料有限公司 | Steel wire technology for cutting solar silicon wafers |
| CN104633032A (en) * | 2014-12-25 | 2015-05-20 | 晶伟电子材料有限公司 | Bidirectional cutting main roller driving method based on energy storage mechanism |
| CN107379294A (en) * | 2017-07-20 | 2017-11-24 | 阜宁协鑫光伏科技有限公司 | The method of diamond wire recycling cutting silicon chip |
| CN112078039A (en) * | 2020-07-30 | 2020-12-15 | 长治高测新材料科技有限公司 | Cutting method for reducing diamond wire loss in crystal silicon multi-wire cutting |
-
2013
- 2013-11-28 CN CN201310618302.0A patent/CN103692563A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103921361A (en) * | 2014-04-29 | 2014-07-16 | 南通综艺新材料有限公司 | Steel wire technology for cutting solar silicon wafers |
| CN104633032A (en) * | 2014-12-25 | 2015-05-20 | 晶伟电子材料有限公司 | Bidirectional cutting main roller driving method based on energy storage mechanism |
| CN107379294A (en) * | 2017-07-20 | 2017-11-24 | 阜宁协鑫光伏科技有限公司 | The method of diamond wire recycling cutting silicon chip |
| CN112078039A (en) * | 2020-07-30 | 2020-12-15 | 长治高测新材料科技有限公司 | Cutting method for reducing diamond wire loss in crystal silicon multi-wire cutting |
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Application publication date: 20140402 |