Heat treatment - Bending, forming, enameling

I was a flat sheet

If flat glass is heated over a certain temperature (around 700° C, depending on the type of glass), it can be bent or brought into a defined shape with the right tools. Depending on the cooling process, the glass then remains relaxed – for example, for further processing, or normal float glass becomes tougher and more resistant tempered safety glass.

A further heat treatment is enameling: At about 630° C, the ceramic colors fuse – practically inseparably – with the base glass.