光伏玻璃压延段成型机理研究

Study on the Forming Mechanism of Photovoltaic Glass Calendering Section

中光伏压延玻璃成型段成型的机理一直是光伏压延玻璃研究和生产的难点和热点。在光伏玻璃压延制作过程时,研究采用了有限元分析方法,探索压延辊转速、玻璃液温度以及压延辊壁厚度对其成型温度场的影响。研究显示,如果其他变量保持不变(玻璃液温度在900℃~1100℃之间,压延辊壁厚度在22.5~32.5 mm,压延辊转速在12~18 r/min),玻璃液温度越高,模拟温度场发生的重热现象时间越长(大约0~2 s),且温度场温度越高;压延辊壁厚越厚,压延辊通过冷却水带走的热量越多,温度场的温度越低;压延辊转速对温度场的影响较大,转速越快,0~3 s内的重热现象越明显,且温度场温度越高,降温曲线越不平稳。

The forming mechanism of photovoltaic calendered glass forming section has always been a difficult and hot spot in the research and production of photovoltaic calendered glass.In the making process of photovoltaic glass calen-dering,the finite element analysis method was used to explore the influence of calender roll speed,glass liquid tempera-ture and calender roll wall thickness on it.The research shows that if other variables remain unchanged(the tempera-ture of the glass liquid is between 900℃~1100℃,the thickness of the calender roll wall is 22.5~32.5 mm,and the speed of the calender roll is 12~18 r/min),the higher the temperature of the glass liquid,the longer the time of the heavy heat phenomenon in the simulated temperature field(about 0~2 s),and the higher the temperature field,the thicker the wall thickness of the calendering roller,the more heat the calendering roller takes away through the cooling water,and the lower the temperature of the temperature field,the speed of the rolling roller has a great influence on the temperature field.The faster the speed is,the more obvious the heavy heat phenomenon in 0~3 s,and the higher the temperature of the temperature field is,the more unstable the cooling curve is.