PROCEDURE FOR THE MANUFACTURE OF HOT LAMINATED BAND PLATED BY LAMINATION FOR ITS FURTHER TRANSFORMATION IN COLD LAMINATED BAND.

摘要

Procedure for the manufacture of hot-rolled strip plated by lamination (W), in which - at least two essentially parallelepiped plates (1, 2, 3) of different steel materials are produced, which are intended to be placed on an envelope the other, - the surfaces (5, 6, 7, 8) of the plates (1, 2, 3) that once placed on each other are attached to each other, are subjected to an erosive surface treatment to adapt the shape of the surface of one of the plates (1, 2, 3) to the shape of the surface of the other plate (1, 2, 3) such that the two surfaces (5, 6, 7, 8) are essentially very close each other when the plates (1, 2, 3) are placed on top of each other, so that the surfaces are released from undesirable foreign particles such as rolling mill, the surface is then activated by a physical-chemical process, - some are placed on others the plates (1, 2, 3) with their surfaces (5, 6, 7, 8) that h have been subjected to surface treatment, - the plates (1, 2, 3) placed on each other are welded together to form a plate package (4), - the plate package (4) is heated to an initial temperature hot rolling, - the heated plate package (4) is hot rolled to obtain a hot rolled strip (W) plated by rolling suitable for coil winding, and - the hot rolled strip (W) is wound plated by lamination to form a coil (C) characterized in that the plate package (4) is heated before welding at a welding preheating temperature.