Edge break from pressure II – thermally reinforced glass

Mechanic spot load – short-term or long – small/medium intensity

Type of glass	Only thermally reinforced glass according to DIN EN 1863
Examples	Too big pressure when screwing; Too big pressure tightening the wooden glass belt without gasket
Beginning	Edge crack angle in all directions, not upright; Transition angle is not upright; Edge curvilinear cracks are none or few in the beginning; Clear centre in the edge.
Lines of process	Beam forms from the edge; From a winding to angular break lines, rarely direct lines; Always last to the edge.
End	Direct lines; In the middle of the glass or last to the edge of the glass.
Other features	No break isles and the crack always lasts to the edge of the glass (according to DIN EN 1863) and depends upon the size and thickness of the glass.

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