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September 04 2015


EVA Solar Cell Encapsulation Film Production Line

Solar Cell and EVA Encapsulation Film

Green energy is the most talked-about topic at present. Undoubtedly, solar technology becomes a superb one of these. Global solar energy products is rolling out by over than 45% yearly in the past decade. The development and investment of solar energy of China exceeded the global world average.

Solar module is laminated by steel glass--EVA film--semiconductor wafer--EVA film- backsheet as it shown in figure "Schematic of Solar Cell Encapsulation". Cross-linking and healing will take place while the composite structure will be heating and pressing. The cured security layers can prevent solar modules from harsh environment damage while keeping high light transmittance.

Twin screw extrusion system

Twin screw extruder direct extrusion technology is one the most important characteristics of this relative line. The successful employment of twin screw extruder makes EVA resin and a true number of additives in-line compounding a reality. This significant improvement is because our deep understanding of twin screw extruder and wealthy practices. This innovation is more than technical advantages, but reducing working costs substantially.

The excellent mixing aftereffect of twin screw extruder is playing a leading role in EVA film production, because it involves a lot of additives, and it requires good compounding. Unique screw elements and screw profile are designed according to the physical and chemical nature of EVA resin. It keeps each component combining while avoiding pre-crosslinking homogeneously. It really is a basis of high efficiency as well.

Special cooling channel of calenders retains the temperature of calendar surface consistent. Peculiar silicon coated calendar can remove the stress of EVA film effectively so that lower the shrinkage rate significantly.

German-made equipment pump ensures melt getting into T-die with continuous quantity and stable pressure. The close-loop will keep the operational system stable running intelligently.

Higher Productivity, Lower Shrinkage

That is one of the givens which guarantee the lower shrinkage and high light transmittance.

Full automatic in-line thickness tester log and statement the thickness with time. The full automated constant stress winding system was created make reference to the mechanical nature of EVA film. Less margin waste materials, Higher level of completed products stem from continuous optimizing of every unit during long-term practice of creation. These optimizations help reducing operating cost substantially.

Intelligent Control System

From relay to industry computer, we have more possibilities. The logic establishing between each practical modules makes exact control simple. Safer production is a result of considered mechanical and electric safety. The complete sync and synergetic control of each unit assured the high quality last product relaxed.

Excellent Quality of EVA Film

The quest for each detail leads to a global top notch EVA solar cell encapsulation film. We can promise the shrinkage significantly less than 3%, and the series swiftness reach at 5m/min.

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