How to solve the solar cell production process of the pollution problem
Production environment, and repeated often severely affected by the pollution production efficiency, in every possible surface contamination processes using the contact cleaning machine, can significantly improve production efficiency and the effectiveness of solar cells.
Today’s photovoltaic cell manufacturing plant are faced with rising production efficiency, improve the efficiency of the pressure of their products Inspiron E1505 battery,XPS M140 battery , while dramatic changes in raw material prices also make it imperative. Affect the production efficiency and product efficacy is one of the main issues to improve the production environment, the pollution of regular and repeated, if the coating, printing, or lamination process before the material surface contamination, production efficiency will be severely affected.
This article will focus on the effects of pollution; major source of pollution and its possible cause of the problem; and make the feasibility of reducing the pollution solution.
Pollution can affect the production of solar modules, depending on what kind of solar modules in production. Module production in three ways:
The first generation of solar cells – silicon: dust and pollutants will affect the screen printing process, triggering a number of issues, such as ‘erected phenomenon’, open and short circuits. When the tin solder points, the pollutants in the volatile and fast expansion, it will lead to leakage and dry welding welding. Then solar cells have been encapsulated in EVA film, if the Inspiron 9400 battery between the film and particles of dust or pollution, because block sunlight, the efficiency of the final product will be reduced. Even the tiny invisible pollution particles, because there are ‘tent effect’ will occur in the complex surface pressure ‘fish-eye’, resulting in visual defects. These are the factory as far as possible to avoid.
Second-generation solar cells – Vacuum alloys: it is more efficient, but before entering the deposition process the surface of the substrate is a very clear need to ensure that junction. If the connection circuit of polluting particles, there will be the same and the first generation of technology issues, such as ‘fish eye’ and ‘erection’ and so on. Similarly, if you want to achieve the best efficiency of the battery in the packaging phase the surface of the glass or film must be clean.
The use of third-generation solar cells and electronic industry, similar to the screen-printing technology. Such batteries PC764 , TD347 , Y9943 are usually not first-and second-generation high-performance, so it reduces the efficiency of pollutants is even more serious problem. The substrate and the template must be printed at each step before being thoroughly clean. Are generally used for screen printing substrate is a plastic material or metal foil, the coating into the substrate or deposition before the direct arrival from the manufacturer, they usually contaminated with residues. For example, the plastic film generally has been cut according to customer requirements into different sizes, debris is likely to be left in the material surface, electrostatic attraction of dust is also a serious problem.
Contamination is not just cause problems in the production process. If the contaminants are conductive materials, finished products will cause corrosion, probably only in the latter part of the product, when stored in the warehouse when the will was found.
Then the production process of the sources of pollution come from?
A large number of potential sources of pollution, including human hair, fabric fibers, shedding skin (a major source of air dust), ceilings, floors, packing and stents, and even referred to as ‘non-shedding fibers’ substances containing alcohol, clean cloth will also be become a source of pollution. ‘Non-shedding fibers’ means that the fabric does not fall off the surface of the fiber, but when the battery with its rub the substrate or template components, the fiber is likely to be clean off, and left in the material surface. Static electricity is another main cause of pollution. General solar panels constituted by the insulating material, easy to contain electrostatic charge. Therefore, the loose particles would immediately attract the Inspiron 1300 battery plate surface. Transport, packaging or rag to clean the battery plates will be static. Particularly in the printing, coating or compression layer, the need for surface treatment processes, the clean substrate to the product quality, reduce waste and downtime, until productivity and corporate profits are crucial.
So what can be done to minimize pollution of the solar cells because of the impact of it? How can pollution and electrostatic, as well as their impact on production to fight it? At present there are two kinds of surface dust, in addition to static method: non-contact and contact-type dust.
Non-contact dust refers to the cleaning equipment is not directly related to being a clean surface contact, such as vacuuming, blowing dust or ultrasound. In addition to static bars and dust with a direct mechanical contact with the membrane in order to achieve effective dust removal. If the vacuum system, the entire surface of the vacuum force to be evenly distributed. If the connection has been cleaning materials and vacuum machine Mifengbuyan, the effectiveness of cleaning operations will be reduced. The correct location and setting is essential, at the same speed, width and type of material should be clean and vacuum output matching. The disadvantage is that the working environment of pollution around the remnants of dust in the process of cleaning device is activated. Similarly, if the dust is blowing the way, the same surface to ensure that the air force of blowing dust to be consistent, also have been blowing the pollution particles or dust is likely scattered in other parts of the production line, or be captured by the second surface of the electrostatic . Non-contact method to clear the dust pollution in the moderate (approximately 25 microns of pollutants) was relatively successful. However, today’s solar cell manufacturing and users increasing demands for quality, because its very difficult to effectively break the surface of the material was clean air layer, can only remove about 25 microns pollutants, such as cleaning performance is clearly not enough. Moving coil or sheet will form an air layer, if you want to achieve efficient cleaning results, we must break through this air layer. Some people believe that high-pressure air will break through this layer, and then blow off the surface of the particles. But in reality, this application does not work. Because the sources scattered in the air, and then after the material in a clean stay another point. Therefore, the traditional non-contact cleaning machines, such as ultrasonic or air-based, because of their being unable to break through the surface air layer of clean material captured by the pollution particles, it is not the most efficient way.
Another option is to use has been confirmed by the semiconductor industry, the technology – contact cleaner technologies. Contact dust technology began in the late 70s early 80s, Britain’s Teknek developed and manufactured the world’s first contact cleaner. Contact cleaning is usually the use of clean wheel and being clean surface of the physical contact to achieve clean, dust removal purposes. Contact cleaning roller is a polymer-covered roller to provide an efficient and single-coil mode Zhang Qingjie. When the cleaning roller and the substrate surface, there is physical contact of pollutants, contaminants transferred to the cleaning roller surface. This is a clip pyramid method, cleaning roller at the same time squeezing the air layer of the substrate surface. The results can be highly efficient in the case of high-speed (96% or more) remove small contaminants (typically less than 10 microns). Unlike brush-type or mechanical brush cleaning system will scratch the surface of sensitive material (such as film), rubber rollers will not damage the surface of the Inspiron 1526 battery plates. The use of contact cleaning equipment to remove silicon, glass or EVA thin film substrate surface as small as 1 micron pollution particles loose and not damage the substrate surface. Subsequently removed contaminated dust particles transferred to the sticky paper rolls for further analysis and destruction. In the cleaning process, cleaning off the battery panel immediately place by electrostatic unit electrostatic elimination to prevent re-contamination caused by attracting particles.
In every possible surface contamination processes using the contact cleaning machine, can significantly improve production efficiency and the effectiveness of solar cells. Contact cleaning has been proved to be the most efficient surface dust and clean way.
Conclusion
With the rising prices of raw materials, solar cell manufacturing plant have to find their own improve production efficiency and reduce waste approach. Pollutants on productivity and the efficiency of solar cells themselves have a major impact. Contact cleaner technologies to improve the efficiency of production and the Latitude D600 battery provides a best alternative solution.
Today’s photovoltaic cell manufacturing plant are faced with rising production efficiency, improve the efficiency of the pressure of their products Inspiron E1505 battery,XPS M140 battery , while dramatic changes in raw material prices also make it imperative. Affect the production efficiency and product efficacy is one of the main issues to improve the production environment, the pollution of regular and repeated, if the coating, printing, or lamination process before the material surface contamination, production efficiency will be severely affected.
This article will focus on the effects of pollution; major source of pollution and its possible cause of the problem; and make the feasibility of reducing the pollution solution.
Pollution can affect the production of solar modules, depending on what kind of solar modules in production. Module production in three ways:
The first generation of solar cells – silicon: dust and pollutants will affect the screen printing process, triggering a number of issues, such as ‘erected phenomenon’, open and short circuits. When the tin solder points, the pollutants in the volatile and fast expansion, it will lead to leakage and dry welding welding. Then solar cells have been encapsulated in EVA film, if the Inspiron 9400 battery between the film and particles of dust or pollution, because block sunlight, the efficiency of the final product will be reduced. Even the tiny invisible pollution particles, because there are ‘tent effect’ will occur in the complex surface pressure ‘fish-eye’, resulting in visual defects. These are the factory as far as possible to avoid.
Second-generation solar cells – Vacuum alloys: it is more efficient, but before entering the deposition process the surface of the substrate is a very clear need to ensure that junction. If the connection circuit of polluting particles, there will be the same and the first generation of technology issues, such as ‘fish eye’ and ‘erection’ and so on. Similarly, if you want to achieve the best efficiency of the battery in the packaging phase the surface of the glass or film must be clean.
The use of third-generation solar cells and electronic industry, similar to the screen-printing technology. Such batteries PC764 , TD347 , Y9943 are usually not first-and second-generation high-performance, so it reduces the efficiency of pollutants is even more serious problem. The substrate and the template must be printed at each step before being thoroughly clean. Are generally used for screen printing substrate is a plastic material or metal foil, the coating into the substrate or deposition before the direct arrival from the manufacturer, they usually contaminated with residues. For example, the plastic film generally has been cut according to customer requirements into different sizes, debris is likely to be left in the material surface, electrostatic attraction of dust is also a serious problem.
Contamination is not just cause problems in the production process. If the contaminants are conductive materials, finished products will cause corrosion, probably only in the latter part of the product, when stored in the warehouse when the will was found.
Then the production process of the sources of pollution come from?
A large number of potential sources of pollution, including human hair, fabric fibers, shedding skin (a major source of air dust), ceilings, floors, packing and stents, and even referred to as ‘non-shedding fibers’ substances containing alcohol, clean cloth will also be become a source of pollution. ‘Non-shedding fibers’ means that the fabric does not fall off the surface of the fiber, but when the battery with its rub the substrate or template components, the fiber is likely to be clean off, and left in the material surface. Static electricity is another main cause of pollution. General solar panels constituted by the insulating material, easy to contain electrostatic charge. Therefore, the loose particles would immediately attract the Inspiron 1300 battery plate surface. Transport, packaging or rag to clean the battery plates will be static. Particularly in the printing, coating or compression layer, the need for surface treatment processes, the clean substrate to the product quality, reduce waste and downtime, until productivity and corporate profits are crucial.
So what can be done to minimize pollution of the solar cells because of the impact of it? How can pollution and electrostatic, as well as their impact on production to fight it? At present there are two kinds of surface dust, in addition to static method: non-contact and contact-type dust.
Non-contact dust refers to the cleaning equipment is not directly related to being a clean surface contact, such as vacuuming, blowing dust or ultrasound. In addition to static bars and dust with a direct mechanical contact with the membrane in order to achieve effective dust removal. If the vacuum system, the entire surface of the vacuum force to be evenly distributed. If the connection has been cleaning materials and vacuum machine Mifengbuyan, the effectiveness of cleaning operations will be reduced. The correct location and setting is essential, at the same speed, width and type of material should be clean and vacuum output matching. The disadvantage is that the working environment of pollution around the remnants of dust in the process of cleaning device is activated. Similarly, if the dust is blowing the way, the same surface to ensure that the air force of blowing dust to be consistent, also have been blowing the pollution particles or dust is likely scattered in other parts of the production line, or be captured by the second surface of the electrostatic . Non-contact method to clear the dust pollution in the moderate (approximately 25 microns of pollutants) was relatively successful. However, today’s solar cell manufacturing and users increasing demands for quality, because its very difficult to effectively break the surface of the material was clean air layer, can only remove about 25 microns pollutants, such as cleaning performance is clearly not enough. Moving coil or sheet will form an air layer, if you want to achieve efficient cleaning results, we must break through this air layer. Some people believe that high-pressure air will break through this layer, and then blow off the surface of the particles. But in reality, this application does not work. Because the sources scattered in the air, and then after the material in a clean stay another point. Therefore, the traditional non-contact cleaning machines, such as ultrasonic or air-based, because of their being unable to break through the surface air layer of clean material captured by the pollution particles, it is not the most efficient way.
Another option is to use has been confirmed by the semiconductor industry, the technology – contact cleaner technologies. Contact dust technology began in the late 70s early 80s, Britain’s Teknek developed and manufactured the world’s first contact cleaner. Contact cleaning is usually the use of clean wheel and being clean surface of the physical contact to achieve clean, dust removal purposes. Contact cleaning roller is a polymer-covered roller to provide an efficient and single-coil mode Zhang Qingjie. When the cleaning roller and the substrate surface, there is physical contact of pollutants, contaminants transferred to the cleaning roller surface. This is a clip pyramid method, cleaning roller at the same time squeezing the air layer of the substrate surface. The results can be highly efficient in the case of high-speed (96% or more) remove small contaminants (typically less than 10 microns). Unlike brush-type or mechanical brush cleaning system will scratch the surface of sensitive material (such as film), rubber rollers will not damage the surface of the Inspiron 1526 battery plates. The use of contact cleaning equipment to remove silicon, glass or EVA thin film substrate surface as small as 1 micron pollution particles loose and not damage the substrate surface. Subsequently removed contaminated dust particles transferred to the sticky paper rolls for further analysis and destruction. In the cleaning process, cleaning off the battery panel immediately place by electrostatic unit electrostatic elimination to prevent re-contamination caused by attracting particles.
In every possible surface contamination processes using the contact cleaning machine, can significantly improve production efficiency and the effectiveness of solar cells. Contact cleaning has been proved to be the most efficient surface dust and clean way.
Conclusion
With the rising prices of raw materials, solar cell manufacturing plant have to find their own improve production efficiency and reduce waste approach. Pollutants on productivity and the efficiency of solar cells themselves have a major impact. Contact cleaner technologies to improve the efficiency of production and the Latitude D600 battery provides a best alternative solution.
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