基本信息:
- 专利标题： 无碱玻璃基板和无碱玻璃基板的制造方法
- 专利标题（英）：ALKALI-FREE GLASS SUBSTRATE AND METHOD FOR MANUFACTURING ALKALI-FREE GLASS SUBSTRATE
- 申请号：CN201710151733.9 申请日：2017-03-14
- 公开(公告)号：CN107188406A 公开(公告)日：2017-09-22
- 发明人： 泷口哲史 , 井上俊二 , 小野和孝 , 德永博文 , 秋山顺 , 加藤保真 , 谷口健英
- 申请人： 旭硝子株式会社
- 申请人地址： 日本东京
- 专利权人： 旭硝子株式会社
- 当前专利权人： AGC株式会社
- 当前专利权人地址： 日本东京
- 代理机构： 中原信达知识产权代理有限责任公司
- 代理人： 王海川; 穆德骏
- 优先权： 2016-051002 20160315 JP
- 主分类号： C03C3/091
- IPC分类号： C03C3/091 ; C03B18/02 ; G02F1/136
The present invention relates to an alkali-free glass substrate, in which when two arbitrary sites in one main surface thereof are selected, an absolute value of a difference between a thermal shrinkage ratio in an arbitrary direction at one site and a thermal shrinkage ratio in a direction orthogonal to the arbitrary direction at another site is 2 ppm or less, provided that the thermal shrinkage ratio is calculated by measuring a deformation amount in a measuring direction of the glass substrate between before and after a heat treatment of raising a temperature from normal temperature to 600 DEG C. at 100 DEG C./hour, holding the glass substrate at 600 DEG C. for 80 minutes, and lowering the temperature from 600 DEG C. to normal temperature at 100 DEG C./hour.
公开/授权文献:
- CN107188406B 无碱玻璃基板和无碱玻璃基板的制造方法 公开/授权日：2022-08-23