A tempering furnace, in particular for sheets of glass and similar

摘要

In the furnance the glass sheets (2) are supported and transported by a conveyor plane (1) of the roller type, above and beneath which plane an upper radiating surface (4) are arranged. The upper radiating surface (3) is composed of a plurality of longitudinal strips (31) arranged side-by-side and parallel to the transport direction of the plane (1), while the lower radiating surface (4) is constituted by a plurality of transversal strips (41) arranged transversally to the said transport direction. Each of the strips (31 and 41) is separated from contiguous strips by means of isolating walls (33,43) and represents the lower and upper surfaces of seperate chambers. In each chamber there is a device which confers regulatable thermal energy from a non-electrical energy source, constituted for example by a radiating tube (15) burner (5) combination.