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1. (WO2015122631) METHOD FOR MANUFACTURING TEMPERED GLASS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2015/122631    International Application No.:    PCT/KR2015/000663
Publication Date: 20.08.2015 International Filing Date: 22.01.2015
IPC:
C03C 21/00 (2006.01), C03B 27/00 (2006.01)
Applicants: CORNING PRECISION MATERIALS CO., LTD [KR/KR]; 30, Manjeondang-gil, Tangjeong-myeon Asan-si Chungcheongnam-do 336-841 (KR)
Inventors: YOON, Kyung Min; (KR).
AN, Jin Soo; (KR).
LEE, Ji Hoon; (KR).
CHOI, Ho Sam; (KR)
Agent: KIM, Seon-Min; (KR)
Priority Data:
10-2014-0017236 14.02.2014 KR
Title (EN) METHOD FOR MANUFACTURING TEMPERED GLASS
(FR) PROCÉDÉ DE FABRICATION DE VERRE TREMPÉ
(KO) 강화유리 제조방법
Abstract: front page image
(EN)The present invention relates to a method for manufacturing tempered glass and, more specifically, to a method for manufacturing alkali-free glass which has the thickness of 2.0 mm or less into tempered glass by means of heat treatment and surface treatment using fluosilicic acid. To this end, the present invention provides a method for manufacturing tempered glass, the method comprising: a preparation step for preparing alkali-free glass; a surface treatment step for surface-treating the alkali-free glass by means of a surface treatment solution comprising fluosilicic acid and thereby generating on the surface of the alkali-free glass a porous SiO2-rich layer of which the coefficient of thermal expansion (CTE) is smaller than the CTE of the inner part of the alkali-free glass; and a heat treatment step for heat-treating the alkali-free glass that has been surface-treated and thereby generating compressive stress on the surface of the alkali-free glass.
(FR)La présente invention concerne un procédé de fabrication de verre trempé, et plus précisément un procédé de fabrication d'un verre sans alcalin, qui a une épaisseur de 2,0 mm ou moins, pour obtenir un verre trempé au moyen d'un traitement thermique et d'un traitement de surface faisant appel à de l'acide fluosilicique. À cette fin, la présente invention concerne un procédé de fabrication de verre trempé, le procédé comprenant : une étape de préparation, pour préparer un verre sans alcalin ; une étape de traitement de surface pour le traitement de surface du verre sans alcalin au moyen d'une solution pour traitement de surface comprenant de l'acide fluosilicique, en générant de ce fait sur la surface du verre sans alcalin une couche poreuse riche en SiO2, dont le coefficient de dilatation thermique (CTE) est plus petit que le CTE de la partie intérieure du verre sans alcalin ; et une étape de traitement thermique pour le traitement thermique du verre sans alcalin qui a été traité en surface, pour générer de ce fait une contrainte de compression sur la surface du verre sans alcalin.
(KO)본 발명은 강화유리 제조방법에 관한 것으로서 더욱 상세하게는 불화규소산을 이용한 표면처리와 열처리를 통해 두께 2.0㎜ 이하의 무알칼리 유리를 강화유리로 만들 수 있는 강화유리 제조방법에 관한 것이다. 이를 위해, 본 발명은, 무알칼리 유리를 준비하는 준비단계; 상기 무알칼리 유리를 불화규소산을 포함하는 표면처리 용액으로 표면처리하여, 상기 무알칼리 유리의 표면에 상기 무알칼리 유리의 내부보다 열팽창계수(CTE)가 작은 다공성 구조의 SiO2 리치층(rich layer)을 생성시키는 표면처리단계 및 표면처리된 상기 무알칼리 유리를 열처리하여, 상기 무알칼리 유리의 표면에 압축응력을 발생시키는 열처리단계를 포함하는 것을 특징으로 하는 강화유리 제조방법을 제공한다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)