METHOD FOR PRODUCING TILE FOR FACING BUILDING STRUCTURES AND DEVICE FOR DIVIDING PIECES MADE OF BRITTLE MATERIAL

摘要

The inventive method consists in producing a rough piece made of a plastic material in the form of a brick comprising at least two tiles which are connected by joints and have at least one opening area which crosses the joints. Afterwards, the rough piece is dried, heat treated and divided into two tiles along the opening area by forces applied to at least two surfaces of the piece which are crossed by the opening area, said forces being applied to the opposite sides of the opening area and directed towards each other. Initially, the forces forming the prestress of the joints less than ultimate strength are applied, said forces being increased until the joints are destroyed. The inventive device for dividing rough pieces made of a brittle material comprises a carrier (18) for arranging the piece and at least two load-bearing elements (20, 21). Each load-bearing element has a plane or convex area arranged in such a way that the distance between the projections thereof on the surface of the carrier (18) is gradually diminishing from the value equal to or greater than the distance between two parallel surfaces of the rough piece (19) towards the value which is less than said distance. The inventive device comprises also a pusher (23) interacting with the rough piece (19) and a unit for receiving parts of the divided rough piece.