MOLTEN SALT FOR STRENTHENING GLASS AND METHOD OF STRENGTHENING GLASS USING THE SAME

• Main Authors: KANG YONGKYU, LEE HYUNJI, LEE HOIKWAN
• Format: Patent
• Language: English; Korean
• Published: 12.12.2022
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

A glass strengthening method of the present invention includes a preparatory step of providing a glass loaded glass and a strengthening step of providing a molten salt to the glass, wherein the freezing point of the molten salt may be 220℃ or more and less than 320℃. In addition, the molten salt includes a first salt and a second salt that are different from each other, wherein the first salt is KNO_3, the second salt is salt containing at least one ion of Li^+, Na^+, K^+, Cs^+, and Rb^+. 본 발명의 유리 강화 방법은 유리 적재 유리를 제공하는 준비 단계 및 유리에 용융염을 제공하는 강화단계를 포함하고, 용융염의 응고점은 220℃ 이상 320℃ 미만일 수 있다. 또한, 상기 용융염은 서로 상이한 제1 염 및 제2 염을 포함하고, 제1 염은 KNO3이고, 제2 염은 Li+, Na+, K+, Cs+, 및 Rb+ 중 적어도 1개의 이온을 포함하는 염이다.