Thermal barrier that induces glass cutting to prevent crack-out

摘要

A method of forming a glass product, comprising: stretching a glass ribbon downstream from a stretch housing; heating a bead-only portion of the glass ribbon, wherein a compressive stress region is formed in the bead Making a cut into the glass ribbon, wherein a cut line is formed through which the glass ribbon is cut. The beads are heated at a position upstream of the score line. An apparatus for manufacturing a glass product, a stretched housing for forming a glass ribbon having beads, a heating apparatus having a heat source for forming a compressive stress region in a bead-only portion of the glass ribbon, and glass An apparatus comprising a notch device for forming a score line in which a ribbon is cut to form a glass product. The heat source moves downstream simultaneously with the glass ribbon.