镧系车载玻璃样品表面粗糙度对弯曲强度的影响  

Influence of Surface Roughness of Lanthanum Crown Car Glass on Bending Strength Test

作　　者：贾文韬 宫堂 高晓芳 李建新 王静静 霍金龙 JIA Wentao;GONG Tang;GAO Xiaofang;LI Jianxin;WANG Jingjing;HUO Jinlong(Hubei New Huaguang Information Materials Co.,Ltd.,Xiangyang 441000,China)

机构地区：[1]湖北新华光信息材料有限公司,襄阳441000

出　　处：《玻璃搪瓷与眼镜》2025年第2期14-17,31,共5页Glass Enamel & Ophthalmic Optics

摘　　要：镧系玻璃因其机械性能优异,在汽车玻璃应用领域备受关注。采用三点弯曲强度试验机测试抛光前后镧系车载玻璃样品的弯曲强度,并通过对比分析探究车载玻璃表面粗糙度对三点弯曲强度的影响。结果表明,经过表面抛光处理后样品的平均弯曲强度比未抛光样品提高了9.4 MPa,且测试结果更稳定。此外,通过数据分析法对原始测量数据平均值、90%置信区间平均值和80%置信区间平均值进行对比,发现80%置信区间能有效去除异常值,准确反映样品的弯曲强度。Lanthanum crown glass has attracted much attention in the application field of car glass because of its excellent mechanical properties.A three-point bending strength tester was used to test and comparatively analyze the bending strength of the car glass samples before and after polishing,aiming to investigate the impact of surface roughness on its three-point bending strength.The results showed that the average bending strength of samples post surface polishing treatment increased by 9.4 MPa compared to the untreated samples,and the results exhibited great stability.Furthermore,by using numerical analysis methods to compare the mean values derived from the raw data,90%confidence interval and 80%confidence interval,it is found that the 80%confidence interval can effectively remove outliers and accurately reflect the bending strength values of the samples.

关 键 词：车载玻璃 三点弯曲强度 表面粗糙度 置信区间 

分 类 号：TQ171.65[化学工程—玻璃工业]