Solar EVA and Cell Encapsulation Film
Green energy is the most talked-about topic at the moment. Undoubtedly, solar energy becomes a superb one of these. Global solar technology products has developed by over than 45% annually before decade. The development and investment of solar technology of China exceeded the 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 treating will need place while the composite structure will be heating system and pressing. The cured safety layers can prevent solar modules from severe environment harm while keeping high light transmittance.
Twin screw extrusion system
Twin screw extruder direct extrusion technology is one the most crucial characteristics of this line. The successful employment of twin screw extruder makes EVA resin and a number of additives in-line compounding possible. This meaningful improvement is a complete consequence of our profound knowledge of twin screw extruder and wealthy practices. This advancement is more than technical advantages, but reducing operating costs substantially.
The wonderful mixing effect of twin screw extruder is playing a respected role in EVA film production, since it involves a lot of additives, and it needs good compounding. Unique screw screw and elements profile are designed based on the physical and chemical nature of EVA resin. It maintains each component combining homogeneously while avoiding pre-crosslinking. It really is a basis of high efficiency as well.
Special cooling channel of calenders keeps the temperature of calendar surface standard. Peculiar silicon coated calendar can take away the stress of EVA film effectively so that lower the shrinkage rate significantly.
German-made equipment pump ensures melt entering into T-die with continuous quantity and steady pressure. The close-loop can keep the system stable running intelligently.
Higher Productivity, Lower Shrinkage
That is one of the givens which guarantee the low shrinkage and high light transmittance.
Full automatic in-line thickness tester log and record the thickness in time. The full automated constant pressure winding system was created refer to the mechanised character of EVA film. Less margin waste, Higher level of completed products stem from constant optimizing of each device during long-term practice of creation. These optimizations substantially help reducing operating cost.
Intelligent Control System
From relay to industry computer, we've more possibilities. The logic placing between each useful modules makes precise control simple. Safer production is because considered mechanised and electrical protection. The complete sync and synergetic control of every unit guaranteed the high quality final product relaxed.
Excellent Quality of EVA Film
The quest for each detail leads to a world class EVA solar cell encapsulation film. We can promise the shrinkage less than 3%, and the collection rate reach at 5m/min.
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