MANUFACTURING METHOD OF A CEMENTED SAFETY GLASS FOR BUILDING OUTER WALL AND THE CEMENTED SAFETY GLASS THEREOF

摘要

A manufacturing method of laminated safety glasses for external wall of buildings is provided to produce convenient laminated safety glasses having improved assembling workability, fine appearance and excellent keeping off water-leakage. A manufacturing method of laminated safety glasses for external wall of buildings comprises the steps of: a laminating process to laminate the lower glass having bolt inserted previously into bolt-assembling hole inside and the upper glass by pre-heating at 60 to 80 deg.C in pre-pressured oven after inserting polyvinyl sheet between the lower and upper glasses; a package-finishing process to seal the brims of the lower and upper glasses and the prominent of the bolt in the bottom of the lower glass while assembling by heat-resistant gum-packing; a heat-laminating process to laminate the lower and upper glasses by heating them at 120 to 150 deg.C until the polyvinyl sheet is melted; and a cooling process at ambient temperature. Polyvinylbutyral(PVB) sheet is inserted between the upper glass(10) and the lower glass(20) and then melted for joining the glasses. A flat head cap bolt(50) is inserted into the corresponding bolt-assembling hole(15) located inside the lower glass(20). The packing(55) is inserted between the bolt-assembling hole(15) and the flat head cap bolt(50) inside the lower glass(20).