Abstract: Vitreous material treatment uses a piece of vitreous material having two opposite faces and a laser emission beam source. The vitreous material is heated, and a laser beam radiated on one of the faces of the vitreous material to scan following a line surpassing the opposite edges of the face of the vitreous material while the vitreous material oscillates along a path. The scan is performed while the vitreous material is heated. The vitreous material is cooled. The laser beam scan follows a line surpassing the opposite edges of the face. The scan performed oscillating between a first point and a second point.

Abstract: A continuous furnace 4 to which a laser is coupled by conventional optical means that allows the surface treatment of a part, with which it is possible to achieve temperatures of up to 3000° C. on said surface while the remainder of the part is at a substantially lower temperature. The part in the furnace is heated to a temperature of the order of 500° C. and, via an opening 5, a laser-beam bundle is applied to the part, scanning a line perpendicular to the direction of movement of the part such that the entire surface is scanned by means of the mechanical advance of the part. This scanning should extend beyond the lateral ends of the part. This type of laser-beam generator must be made compatible with the various colors with which the surface of the part is decorated. The furnace is divided into different zones, with independent temperature controls, for successfully achieving the desired values, both for heating and for cooling.

Abstract: The present invention relates to a continuous kiln coupled to a laser by a conventional optical means that allows for surface treatment of a part, such that it is possible to achieve temperatures of up to 3000° C. on the surface of the part while the remainder of the part is at a substantially lower temperature. The part in the kiln is heated to a temperature on the order of 500° C. and a laser beam bundle is applied to the part via an opening in the kiln. The laser beam scans a line perpendicular to the direction of movement of the part such that the entire surface is scanned by means of the mechanical advance of the part. The scanning may extend beyond the lateral ends of the part. The kiln may comprise different zones with independent temperature controls for successfully achieving desired values, both for heating and cooling.