GLASS AND GLASS PRODUCTION METHOD

• Main Authors: YAMAGUCHI MASATOSHI, IWANAGA KOTA, EJIRI TAKAKO
• Format: Patent
• Language: English; Japanese
• Published: 09.02.2017
• Subjects: CALCULATING; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; PHYSICS; 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

PROBLEM TO BE SOLVED: To provide a curved glass which is inexpensive and can be produced by mass production, and a production method thereof.SOLUTION: A cover glass 1 comprises: a tabular glass body part 2; and a chemical strengthening layer 3 disposed on at least one of one surface 2a side and the other surface 2b side of the glass body part 2. The glass body part 2 is formed into a curved shape by internal stress difference between the one surface 2a side and the other surface 2b side generated by thickness difference of the chemical strengthening layer 3A on the one surface 2a side and the chemical strengthening layer 3B on the other surface 2b side.SELECTED DRAWING: Figure 1 【課題】安価で大量生産が可能な湾曲形状のガラス、及びこのようなガラスの製造方法を提供することを目的とする。【解決手段】カバーガラス１は、板状のガラス本体部２と、ガラス本体部２の一方面２ａ側及び他方面２ｂ側の少なくとも一方に形成された化学強化層３と、を備え、一方面２ａ側における化学強化層３Ａと他方面２ｂ側における化学強化層３Ｂとの厚み差によって生じる一方面２ａ側と他方面２ｂ側との内部応力差によって、ガラス本体部２が湾曲形状をなしている。【選択図】図１