CN1648084A - Process for processing cover plate glass of solar photovoltaic battery module - Google Patents
Process for processing cover plate glass of solar photovoltaic battery module Download PDFInfo
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- CN1648084A CN1648084A CN 200510037934 CN200510037934A CN1648084A CN 1648084 A CN1648084 A CN 1648084A CN 200510037934 CN200510037934 CN 200510037934 CN 200510037934 A CN200510037934 A CN 200510037934A CN 1648084 A CN1648084 A CN 1648084A
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Abstract
The present invention relates to the treating process of cover plate glass for solar photovoltaic battery module, and belongs to the field of the glass treating technology. The treating process includes the following steps: selecting base plate, cutting, edging and chamfering, cleaning, and tempering in tempering furnace and packing. The tempering treatment in the tempering furnace has the upper and lower electric heating temperature of 710-715 deg.c and 690-700 deg.c, base feeding time interval of 10-15 sec, heating time of 145-170 sec, slowly cooling time of 40-50 sec, upper and lower blowing row interval of 20-25 mm and 18-22 mm, throttle rate of 80-100 %, and furnace exhaust speed of 70-90 cm/s. The present invention has the advantages of high finished product rate, and high product flatness, homogeneous stress and high shock strength of the product.
Description
Technical field
The present invention relates to a kind of complete processing of cover-plate glass of solar photovoltaic battery component, is to the improvement of the complete processing of the cover-plate glass of the solar photovoltaic battery component in the prior art, belongs to solar energy photoelectric conversion glass processing technical field.
Background technology
The cover-plate glass of solar photovoltaic battery component claims the solar energy glass cover plate again; because it can fully see through sun power and be beneficial to silicon crystal slate absorption sun power; and protect following silicon crystal slate not to be subjected to the damage of extraneous cold snow weather with the intensity of self, this can be applicable to the silicon single crystal of all size with regard to the cover-plate glass that makes solar photovoltaic battery component; polycrystalline solar module and power station intelligence control system; the intelligence photovoltaic water pump system; wind-light complementary system; military digitizing photo-voltaic power supply; photovoltaic communication signals system; multifuctional solar user power supply and anti-low temperature high brightness solar energy garden lamp; Lawn lamp; the reason place of traffic lights or the like.Its complete processing is: select the low iron ultrawhite ultra-thin glass of transparence 〉=91% (present as substrate, generally the thickness of Cai Yonging is 2.8～3.2mm), through cutting (all adopted CAD＜computer aided design (CAD) at present〉optimize cut), after straight line edge polisher chamfered edge and beveler chamfering, use washed with de-ionized water again, carry out tempering at last, thereby make as the essential parts of the product of solar-energy photo-voltaic cell and so on---the cover-plate glass of solar photovoltaic battery component.
Because the yield rate that the cover-plate glass of solar photovoltaic battery component is obtained in complete processing is generally only about 70%～80%, therefore make the price height of cover-plate glass of solar photovoltaic battery component own, thereby cause using the product cost of the solar photovoltaic battery component of this cover-plate glass to occupy high.
Though the complete processing of the cover-plate glass of solar photovoltaic battery component is also uncomplicated, it roughly is divided into following five steps: select materials (1); (2) CAD optimization cuts; (3) edging and chamfering; (4) clean; (5) tempering.The tempering step is a vital ring of the cover-plate glass yield rate height of decision solar photovoltaic battery component.In view of mostly adopting the glass processing of 3-3.2mm, this cover-plate glass forms, so with processing thickness is that the cover-plate glass of the solar photovoltaic battery component of 3-3.2mm is an example, even to selecting materials, CAD optimization cuts, edging and chamfering, clean the very consummate degree of handling modestly, but because the tempering link is difficult to grasp, can satisfy domestic and international some quality index requirement limpingly though cause the cover-plate glass of resulting solar photovoltaic battery component to toughened glass, be that planeness is no more than 0.5% when arc, be not more than 0.3% during waveform, yet its shock resistance does not but still reach the service requirements of some use occasion.For example: plate presses percentage of damage more than 10% when polycrystalline silicon solar photovoltaic cell component plate is pressed into shape; And for example: apply it on the outdoor solar module, its to external world foreign matter, hail, dust storm, the snow shock resistance of particularly avenging pearl etc. show as very fragile.Self-evident, the quality of shock resistance depend on to a great extent stress distribution evenly whether.Influencing another key element that plate is pressed into power simultaneously is planeness, if the cover plate planeness surpasses 0.3% when arc, surpasses 0.2% during waveform, and the plate that has a strong impact on photovoltaic cell component is pressed into power, even large quantities of pressure break silicon crystal slate.And to obtain even effect of ideal stress distribution and high planeness, the processing condition of improving in the tempering process just seem very important.
Retrieve through the applicant, in patent documentation, tempering technology to sheet glass is introduced to some extent, for example clear 59-217630A has introduced a kind of toughening method of sheet glass, it is to be inserted into quenching between the cooling plate after the sheet glass heating, and simultaneously to around the sheet glass directly with the contacted part of cooling plate or directly with the contacted part blowing cooling air of cooling plate that is enclosed with cushioning material such as glasscloth, cool off the cold energy that is obtained by cooling plate and come sheet glass is cooled off.The solid contact method that is clamped into chilling between the cooling plate after the contribution of this scheme has been to solve and has adopted sheet glass to heat is inferior to the problem of the intensity of central part to intensity around the existing sheet glass of glass tempering.But this method at glass be not cover-plate glass for solar photocell assembly; Especially do not reach the yield rate that how integrally improves toughened glass, planeness, resistance to impact shock etc.; And method is unfavorable for the production efficiency of toughened glass.The desired people of being allowed of cover-plate glass that Chinese patent publication number CN1183090A and U.S. Pat 5009694 and russian patent SU633829 do not reach too as solar photocell assembly realize the technology enlightenment of knowing such as yield rate, planeness, resistance to impact shock aspect.
Summary of the invention
Task of the present invention is the complete processing that a kind of cover-plate glass of solar photovoltaic battery component will be provided, and the cover-plate glass of the solar photovoltaic battery component of processing with this technology has yield rate height, ideal flatness, good impact resistant effect.
Task of the present invention is finished like this, a kind of complete processing of cover-plate glass of solar photovoltaic battery component, and it is made of following steps:
(1) selecting thickness is that the low iron ultrawhite ultra-thin glass of 2.8-3.2mm, transparence 〉=91% is as substrate;
(2) selected substrate is cut into required specification;
(3) substrate after cutting is carried out edging and chamfering;
(4) use washed with de-ionized water;
(5) substrate after cleaning is gone into the packing of coming out of the stove after the annealing furnace tempering is handled, characteristics are: it is that upper and lower part electric heating temperature with annealing furnace is controlled to be 710～715 ℃ and 690～700 ℃ respectively that described tempering is handled, substrate advances stove and was controlled to be for 10～15 seconds pitch time, be 145～170 seconds heat-up time, cooling time was 40～50 seconds, upper and lower wind array pitch separates and is not controlled to be 20～25mm and 18～22mm, and the air door ratio control is 80～100%, and the speed control of coming out of the stove is in 70～90cm/ second.
It is that upper and lower part electric heating temperature with annealing furnace is controlled to be 710 ℃ and 700 ℃ respectively that tempering of the present invention is handled, it was 10 seconds that substrate advances stove pitch time, be 170 seconds heat-up time, cooling time was 50 seconds, upper and lower wind array pitch is from being 20mm and 22mm, the air door ratio is 80%, and the speed of coming out of the stove is 70cm/ second.
It is that upper and lower part electric heating temperature with annealing furnace is controlled to be 712 ℃ and 695 ℃ respectively that tempering of the present invention is handled, it was 14 seconds that substrate advances stove pitch time, be 155 seconds heat-up time, cooling time was 45 seconds, upper and lower wind array pitch is from being 22mm and 20mm, the air door ratio is 90%, and the speed of coming out of the stove is 80cm/ second.
It is that upper and lower part electric heating temperature with annealing furnace is controlled to be 715 ℃ and 690 ℃ respectively that tempering of the present invention is handled, it was 12 seconds that substrate advances stove pitch time, be 145 seconds heat-up time, cooling time was 40 seconds, upper and lower wind array pitch is from being 25mm and 18mm, the air door ratio is 100%, and the speed of coming out of the stove is 90cm/ second.
Chamfering of the present invention adopts 200 order grinding wheels, and grinding wheel speed is 3500 rev/mins.
Washed with de-ionized water of the present invention is 5-7 with specific conductivity
3The deionized water of M Ω .cm.
The yield rate of the cover-plate glass of the solar photovoltaic battery component that technology of the present invention obtained is more than 98%, be respectively during the arc and waveform of planeness＜0.2% and＜0.15%, stress distribution is even, plate pressed percentage of damage below 0.02% when pressing plate was shaped, and freely fell for 1 meter high with the 1040g steel ball and did not break and show the resistance to impact shock of excellence.
Accompanying drawing and drawing explanation
Fig. 1 is the processing process figure of the cover-plate glass of solar photovoltaic battery component of the present invention.
Fig. 2 is the cover-plate glass product synoptic diagram of the solar photovoltaic battery component of the complete processing gained of the cover-plate glass of solar photovoltaic battery component of the present invention.
Embodiment
Embodiment 1
Present embodiment is that cover-plate glass with work sheet crystal silicon, polycrystalline silicon solar photovoltaic cell component is an example.
(1) select by the thickness that domestic Xi'an Jiayang New Energy Sources Co., Ltd. sells be 2.8mm (the thickness error for ± 0.2mm), length is that 1300mm, width are that the low iron ultrawhite ultra-thin glass of transparence 〉=91% of 960mm is as substrate, wherein: ideal as substrate to choose ultrawhite woven design figured glass, because its dispersion effect to light is more conducive to the silicon crystal slate that sunlight sees through glass back, to reach better photoelectric conversion rate, it is compared with the float glass process white glass, and photoelectric transformation efficiency will exceed 3～8%;
(2) adopt Italian Bao Teluo fully automatic cutting machine to optimize and cut into required specification, optimize to cut with CAD and can guarantee blank size and substrate diagonal lines precision to greatest extent with CAD;
(3) adopt straight line edge polisher edging and with 200 order grinding wheel bevelers to cutting four angle chamferings of the substrate behind the edging, rotating speed is controlled to be 3500 rev/mins;
(4) using the specific conductivity of measuring through the DDS-IIA conductivity meter is 5-7
3The washed with de-ionized water of M Ω .cm and oven dry, cleaning drying machine is the new seashore glass cleaning machine in Guangdong.
(5) substrate after cleaning, drying being sent into such as the model of being produced by Taiwan Tong Chang machinery company limited is that TCF-GTH4896A horizontal annealing furnace carries out the tempering processing in biplate horizontally-arranged mode.Wherein: the upper and lower part electric heating temperature of annealing furnace is controlled to be 710 ℃ and 700 ℃ respectively, it was 10 seconds that substrate advances stove pitch time, be 170 seconds heat-up time, cooling time was 50 seconds, upper and lower wind array pitch is from being 20mm and 22mm, and the air door ratio is that the opening degree of air door is 80%, and the speed of coming out of the stove is 70cm/ second, promptly obtain after coming out of the stove yield rate 99.5% by the cover-plate glass that can be applicable to silicon single crystal, polycrystalline silicon solar photovoltaic cell component shown in Figure 2, and pack with primary blank sheet of paper holding paper.
Embodiment 2
It is example that present embodiment is still cover-plate glass with work sheet crystal silicon, polycrystalline silicon solar photovoltaic cell component.
In the present embodiment, only the substrate of step (1) being used instead the thickness of being produced by this (Changshu) photoelectricity company limited of Aunar is 3mm, long is 1574mm, wide for the transparence of 962mm 〉=91% low iron ultrawhite ultra-thin float glass process lineae ablicantes glass substrate and with the annealing furnace steel process parameter of step (5) become annealing furnace on, bottom electric heating temperature is controlled to be 712 ℃ and 695 ℃ respectively, it was 14 seconds that substrate advances stove pitch time, be 155 seconds heat-up time, cooling time was 45 seconds, on, the leeward array pitch is from being 22mm and 20mm, the air door ratio is 90%, and the speed of coming out of the stove is 80cm/ second.All the other all with
Embodiment 1.
Embodiment 3
Present embodiment is that cover-plate glass with work sheet crystal silicon, polycrystalline silicon solar photovoltaic cell component is an example equally.
In the present embodiment, the specification that only substrate of step (1) is changed into Shanghai photoelectricity company limited production and sales in super day be 1605mm * 806mm * 3.2mm transparence 〉=91% low iron ultrawhite ultra-thin float glass process lineae ablicantes glass and the upper and lower part electric heating temperature that the annealing furnace steel process parameter of step (5) becomes annealing furnace is controlled to be 715 ℃ and 690 ℃ respectively, it was 12 seconds that substrate advances stove pitch time, be 145 seconds heat-up time, cooling time was 40 seconds, upper and lower wind array pitch is from being 25mm and 18mm, the air door ratio is 100%, and the speed of coming out of the stove is 90cm/ second.All the other are all with embodiment 1.
To respectively getting 50 by the cover-plate glass of the resulting silicon single crystal of the above embodiment of the present invention, polycrystalline silicon solar photovoltaic cell component, through national glass quality supervision and inspection center on January 27th, 2005 by State Standard of the People's Republic of China GB9963-1998 " toughened glass " standard the detection during to the arc and waveform of planeness and shock resistance detects and when the online pressing plate of above-mentioned photovoltaic cell factory is shaped plate press percentage of damage to detect, obtain by the ideal effect shown in the following table.
| Test item | Planeness | Resistance to impact shock (the 1040g steel ball freely falls for 1 meter) | The online plate plate of production line crushes rate (%) | |
| When arc | During waveform | |||
| Embodiment 1 1300 * 960 * 2.8mm | All＜0.15% | All＜0.13% | Do not have broken | ??0 |
| Embodiment 2 1574 * 962 * 3mm | All＜0.13% | All＜0.11% | Do not have broken | ??0.02％ |
| Embodiment 3 1605 * 806 * 3.2mm | All＜0.11% | All＜0.10% | Do not have broken | ??0.01％ |
Claims (6)
1, a kind of complete processing of cover-plate glass of solar photovoltaic battery component, it is made of following steps:
(1) selecting thickness is that the low iron ultrawhite ultra-thin glass of 2.8-3.2mm, transparence 〉=91% is as substrate;
(2) selected substrate is cut into required specification;
(3) substrate after cutting is carried out edging and chamfering;
(4) use washed with de-ionized water;
(5) substrate after cleaning is gone into the packing of coming out of the stove after the annealing furnace tempering is handled, it is characterized in that it is that upper and lower part electric heating temperature with annealing furnace is controlled to be 710～715 ℃ and 690～700 ℃ respectively that described tempering is handled, substrate advances stove and was controlled to be for 10～15 seconds pitch time, be 145～170 seconds heat-up time, cooling time was 40～50 seconds, upper and lower wind array pitch separates and is not controlled to be 20～25mm and 18～22mm, the air door ratio control is 80～100%, and the speed control of coming out of the stove is in 70～90cm/ second.
2, the complete processing of the cover-plate glass of solar photovoltaic battery component according to claim 1, it is characterized in that it is that upper and lower part electric heating temperature with annealing furnace is controlled to be 710 ℃ and 700 ℃ respectively that described tempering is handled, it was 10 seconds that substrate advances stove pitch time, be 170 seconds heat-up time, cooling time was 50 seconds, upper and lower wind array pitch is from being 20mm and 22mm, and the air door ratio is 80%, and the speed of coming out of the stove is 70cm/ second.
3, the complete processing of the cover-plate glass of solar photovoltaic battery component according to claim 1, it is characterized in that it is that upper and lower part electric heating temperature with annealing furnace is controlled to be 712 ℃ and 695 ℃ respectively that described tempering is handled, it was 14 seconds that substrate advances stove pitch time, be 155 seconds heat-up time, cooling time was 45 seconds, upper and lower wind array pitch is from being 22mm and 20mm, and the air door ratio is 90%, and the speed of coming out of the stove is 80cm/ second.
4, the complete processing of the cover-plate glass of solar photovoltaic battery component according to claim 1, it is characterized in that it is that upper and lower part electric heating temperature with annealing furnace is controlled to be 715 ℃ and 690 ℃ respectively that described tempering is handled, it was 12 seconds that substrate advances stove pitch time, be 145 seconds heat-up time, cooling time was 40 seconds, upper and lower wind array pitch is from being 25mm and 18mm, and the air door ratio is 100%, and the speed of coming out of the stove is 90cm/ second.
5, the complete processing of the cover-plate glass of solar photovoltaic battery component according to claim 1 is characterized in that described chamfering adopts 200 order grinding wheels, and grinding wheel speed is 3500 rev/mins.
6, the complete processing of the cover-plate glass of solar photovoltaic battery component according to claim 1 is characterized in that described washed with de-ionized water, is 5-7 with specific conductivity
3The deionized water of M Ω .cm.
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| CNB2005100379343A CN1298644C (en) | 2005-02-28 | 2005-02-28 | Process for processing cover plate glass of solar photovoltaic battery module |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367605B (en) * | 2008-09-26 | 2011-01-12 | 无锡海达安全玻璃有限公司 | Tempering processing method for 3.2mm tempered glass |
| CN101367606B (en) * | 2008-09-26 | 2011-04-06 | 无锡海达安全玻璃有限公司 | Tempering processing method for 4.0mm tempered glass |
| CN101630702B (en) * | 2009-07-30 | 2012-02-01 | 东莞南玻太阳能玻璃有限公司 | Preparation method of coated cover-plate glass of solar cell |
| CN102659305A (en) * | 2012-04-18 | 2012-09-12 | 无锡海达安全玻璃有限公司 | Novel semi-tempering process for back plate glass of thin-film solar cells |
| CN103249690A (en) * | 2010-12-03 | 2013-08-14 | 旭硝子株式会社 | Method for producing chemically strengthened glass substrate for display device |
| CN107285624A (en) * | 2009-07-24 | 2017-10-24 | 考斯曼技术有限公司 | Fusible molding glass comprising silica and sodium |
| CN110042629A (en) * | 2019-05-28 | 2019-07-23 | 安徽凤阳赛弗节能玻璃有限公司 | A kind of Washing Machine Panel glass machining technique |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0629148B2 (en) * | 1989-05-31 | 1994-04-20 | セントラル硝子株式会社 | Heat treatment method for glass plate |
| FI86406C (en) * | 1991-01-11 | 1992-08-25 | Tamglass Oy | Device for thermosetting of glass sheets |
| US5654057A (en) * | 1994-12-28 | 1997-08-05 | Hoya Corporation | Sheet glass flattening method, method of manufacturing glass substrate for an information recording disk using flattened glass, method of manufacturing a magnetic recording disk using glass substrate, and magnetic recording medium |
| CN1183090A (en) * | 1996-03-21 | 1998-05-27 | 彼得·利瑟 | Process and plant for hardening glass plates |
| CN1193945C (en) * | 2002-07-23 | 2005-03-23 | 高世民 | Process for producing heat resistant fire-proof super strong safety tempering glass |
-
2005
- 2005-02-28 CN CNB2005100379343A patent/CN1298644C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367605B (en) * | 2008-09-26 | 2011-01-12 | 无锡海达安全玻璃有限公司 | Tempering processing method for 3.2mm tempered glass |
| CN101367606B (en) * | 2008-09-26 | 2011-04-06 | 无锡海达安全玻璃有限公司 | Tempering processing method for 4.0mm tempered glass |
| CN107285624A (en) * | 2009-07-24 | 2017-10-24 | 考斯曼技术有限公司 | Fusible molding glass comprising silica and sodium |
| CN101630702B (en) * | 2009-07-30 | 2012-02-01 | 东莞南玻太阳能玻璃有限公司 | Preparation method of coated cover-plate glass of solar cell |
| CN103249690A (en) * | 2010-12-03 | 2013-08-14 | 旭硝子株式会社 | Method for producing chemically strengthened glass substrate for display device |
| CN103249690B (en) * | 2010-12-03 | 2014-12-10 | 旭硝子株式会社 | Method for producing chemically strengthened glass substrate for display device |
| CN102659305A (en) * | 2012-04-18 | 2012-09-12 | 无锡海达安全玻璃有限公司 | Novel semi-tempering process for back plate glass of thin-film solar cells |
| CN110042629A (en) * | 2019-05-28 | 2019-07-23 | 安徽凤阳赛弗节能玻璃有限公司 | A kind of Washing Machine Panel glass machining technique |
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