At present, the most commonly used photovoltaic module is an ultra-bright structure. A transparent substrate is placed on the light-receiving surface of the solar cell as a support plate for the module, and the solar cell is sealed with a filler. material and back cover material below. The above transparent plate is made of glass, mainly white tempered glass with good transparency and impact resistance. Filler adhesive materials mainly use polyvinyl butyral (PVB), which has low transmission attenuation when exposed to ultraviolet light, and ethylene ethyl acetate (EVA), which has good resistance to humidity. The reverse coating mainly uses a sandwich structure of EVA or metallic aluminum and polyvinyl fluoride (PVF), making it moisture resistant and highly insulating.
1. Adjust the settingsu welding process, such as welding temperature, welding time and welding pressure, to reduce the occurrence of welding strip bulges.
2. Select the appropriate welding head or welding gun and perform precise welding according to the size and shape of the backplane laminated busbar.
3. Use sandpaper or a grinding wheel to smooth out any raised areas.