Method for manufacturing glass substrate

• Main Authors: IKAI OSAMU, KOBAYASHI KENJI
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; CLEANING; CLEANING IN GENERAL; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; GRINDING; JOINING GLASS TO GLASS OR OTHER MATERIALS; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; POLISHING; PREVENTION OF FOULING IN GENERAL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

The purpose of the present invention is to provide a method for manufacturing a glass substrate which is capable of efficiently improving the cleanliness of the surfaces of the glass substrate. This method for manufacturing a glass substrate comprises: a cutting step of cutting the glass substrate; an edge machining step of machining cut edges which are cut surfaces of the glass substrate cut in the cutting step; and a surface treatment step of treating the main surface of the glass substrate cut in the cutting step. In the edge machining step, the shape of the cut edges is machined while a grinding fluid is fed to the cut edges. In the surface treatment step, an alkaline solution having a pH of less than 10 is applied onto the main surface, and the surface treatment step is performed at the same time as the edge machining step. 本发明的目的在于提供种能够使玻璃基板表面的清洁性有效率地提高的玻璃基板的制造方法。本发明的玻璃基板的制造方法具备：切断步骤，切断玻璃基板；端面加工步骤，对在切断步骤中被切断的玻璃基板的切断面也即是切断端面进行加工；以及表面处理步骤，对在切断步骤中被切断的玻璃基板的主表面进行处理。端面加工步骤是边对切断端面供给研削液边加工切断端面的形状。表面处理步骤是将pH值小于1