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JP2012141208A Method and device for testing quality of glass plate, and method of manufacturing glass plate 有权
标题翻译：用于测试玻璃板质量的方法和装置，以及制造玻璃板的方法
公开(公告)号：JP2012141208A
公开(公告)日：2012-07-26
申请号：JP2010293928
申请日：2010-12-28
申请人： Asahi Glass Co Ltd , 旭硝子株式会社
发明人： MANNAMI KAZUO , MINE SHINYA , YOKOTA MASAICHI , YANO KUNIAKI
IPC分类号： G01N3/30 , G11B5/84
摘要： PROBLEM TO BE SOLVED: To provide a method and device for testing the quality of glass plate in which scratches difficult to detect by the visual inspection and optical inspection are made possible to be detected, and a non-defective product can be inhibited from being damaged.SOLUTION: The method for testing the quality of the glass plate includes a processing step in which thermal shock is given to the glass plate 10. The processing step includes a heating step of heating the glass plate 10, and a cooling step of cooling the glass plate 10. In the processing step, the temperature change width of at least a part of the glass plate 10 is 200°C or more, and in the heating process, the upper limit of the heating temperature of the glass plate 10 is the temperature of the strain point of the glass plate 10 minus 340°C.
摘要翻译：要解决的问题：提供一种用于测试玻璃板的质量的方法和装置，其中可以检测通过目视检查和光学检查难以检测的划痕，并且可以抑制非缺陷产品从被损坏。解决方案：用于测试玻璃板质量的方法包括对玻璃板10施加热冲击的加工步骤。加工步骤包括加热玻璃板10的加热步骤和冷却步骤冷却玻璃板10.在该加工工序中，玻璃板10的至少一部分的温度变化宽度为200℃以上，在加热工序中，玻璃板10的加热温度的上限是玻璃板10的应变点的温度减去340℃。版权所有（C）2012，JPO＆INPIT

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