The development of the new energy industry has achieved the goal of energy regeneration. As a leader in the new energy industry, solar energy covers more and more regions. There is also a special EVA film equipment, which we often call solar film equipment. Energy conversion is achieved through EVA film. But with this device, there are a lot of details to pay attention to during the lamination process.
The importance of lamination temperature control
1. The temperature control should be uniform
Temperature control during lamination of EVA film equipment is a crucial detail. During the operation, it is necessary to adjust the temperature of the laminated hot plate according to the actual needs. At the same time, it is necessary to ensure that the temperature of the lamination hot plate is uniform. If the temperature is too high during the lamination process, it will cause bubbles and affect the curing time. It is necessary to control and measure the relevant factors to ensure the effect of lamination and the efficiency of lamination.
2. Temperature heating standard
There are certain standards for the heating of the temperature during the lamination process. If the heating temperature does not meet the relevant standards, various unfavorable situations are prone to occur, such as the appearance of air bubbles. EVA, as an adhesive film that can achieve rapid curing, can be heated at a temperature of 135 degrees Celsius to 140 degrees Celsius. When heated to this temperature, it can continue to maintain a constant temperature for fifteen to twenty minutes. Compared with the traditional film, the constant temperature is longer. Strictly follow the heating standards, not only to ensure a constant temperature but also to ensure that the lamination is completed at the correct temperature.
The importance of heating rate control
1. The heating rate control can quickly form a film
During the lamination process using EVA film equipment, attention should also be paid to the control of the heating rate. The temperature control not only affects the curing time but also affects the curing effect. China GWELL is a Plastic Extruder manufacturer. The EVA film is softened and pasted by heat. When it reaches the molten state, it can fill all the gaps of the required stickers, so as to form a comprehensive coverage effect. And the effect of fast curing and film formation can be achieved by increasing the temperature.
2. The heating rate should be controlled properly
Stable macromolecular substances can be formed at high temperatures. GWELL EVA film equipment just needs to pay attention that the heating rate should be properly controlled, and the ultra-fast speed will cause bubbles to occur, which will affect the effect of film formation. The generation of bubbles will not only affect the visual effect of the film formation but also have a certain impact on the conversion of energy. Therefore, it is necessary to pay attention to the control of the heating rate, and it is not allowed to increase the temperature at will or ignore the adjustment of the temperature. The adjustment and control of temperature has a crucial role and influence, so in the lamination process, this point cannot be ignored.
The elimination of bubbles is indispensable
1. How to remove air bubbles
If bubbles appear during the lamination process of EVA POE Solar Film Extrusion Line, the bubbles must be eliminated before the process is delivered. The formation of air bubbles is due to the reaction of part of the air with oxides during lamination. When oxygen is generated, air bubbles are formed. In this case, it is necessary to remove air by vacuum extraction to eliminate air bubbles. The existence of air bubbles will seriously affect the conversion of energy, so the elimination of air bubbles is a very important detail. We must pay attention to this point when using a china Eva film extrusion line manufacturer for lamination to ensure the elimination of air bubbles, so as to ensure that the performance of the film can be maximized.
2. Bubble elimination can perfectly present the characteristics of EVA film
Ensuring the standardization of the lamination process and the elimination of air bubbles is the key to ensuring the effect of lamination using the equipment. Make sure to eliminate air bubbles to show the characteristics of the film produced by this type of film equipment. Not only has high light transmittance, but also has strong heat resistance, and can even withstand the high temperature of 85 degrees Celsius. At the same time, it can also withstand low temperatures and can maintain good performance at minus 40 degrees Celsius. There will be no thermal expansion and contraction due to temperature changes. Not only that, but also can withstand long-term ultraviolet irradiation, will not appear aging phenomenon due to long-term irradiation, and the service life is longer.
As a china Eva film extrusion line manufacturer, China GWELL is the key to realizing energy conversion by applying film to solar panels. Under the action of this equipment, the film can be completed quickly and efficiently, while ensuring the conversion rate after the film and exerting its greater value and function. But these details must be paid attention to during the lamination process. It can be said that these details are the key to determining the effect of the equipment after lamination and whether the service life of the adhesive film can be guaranteed.
High-quality equipment can ensure a small shrinkage rate and at the same time ensure the adequacy of a film set, which is an effect that poor-quality equipment cannot achieve. In recent years, with the increase of manufacturers producing photovoltaic EVA, the awareness of GWELL EVA film equipment has become higher and higher, which ensures the professionalism of lamination and completes energy conversion with high efficiency.