光伏玻璃镀釉背板表面应力影响因素分析  

Analysis of Factors Affecting Surface Stress of Rear Cover Glass for Double Photovoltaic Patterned Module

作　　者：田密 曲兆娟 TIAN Mi;QU Zhaojuan(Flat Glass Group Co.,Ltd.,Jiaxing 314001,China;Jiaxing Glead Electronics Co.,Ltd.,Jiaxing 314003,China)

机构地区：[1]福莱特玻璃集团股份有限公司,嘉兴314001 [2]嘉兴佳利电子有限公司,嘉兴314003

出　　处：《玻璃搪瓷与眼镜》2022年第8期38-43,19,共7页Glass Enamel & Ophthalmic Optics

摘　　要：通过分析双玻组件用光伏玻璃镀釉背板应力的变化,以镀釉和打孔为代表的镀釉背板与前板玻璃相比,表面应力更大,应力分布更不均匀。通过分析生产过程中冷却的风压、加热时间和加热温度等关键因素对背板表面应力的影响,发现玻璃和镀釉油墨膨胀系数的差异导致镀釉种类影响表面应力、冲击测试和四点弯曲强度等性能指标,这也是导致背板玻璃强度弱于前板玻璃强度的根本原因。By analyzing the surface stress changes of rear cover glass for double photovoltaic modules,the stress distribution of rear cover glass surface is larger and more uneven than the front glass because of printing and drilling process.The main parameters effecting the rear cover glass surface stress such as cooling air pressure,heating time and heating temperature were analyzed.Expansion coefficient difference between solar glass and printing ink depends on the type of printing ink,which can affect the surface stress,impact test and four points bending,thus determine that the mechanical properties of rear cover glass is weaker than the front glass.

关 键 词：双玻组件 镀釉背板 表面应力 光伏玻璃 

分 类 号：TQ171.73[化学工程—玻璃工业]