Continuous thin metal strip casting - gives preformed edges to give consistent metal structure at sides

摘要

In the continuous casting of thin metal strip (4), esp. of steel, the small surfaces of the metal strip (4) are preformed from the filling of the liquid metal into the pouring zone (3). This gives continuous surfaces for the small sides of the strip, according to their final form, according to the edges of the metal strip (4). Pref. each of the side closing plates (10) has a decreasing cross section into the pouring zone (3) as a projecting pouring funnel. It has a straight section (14) at every level with a length generally equal to the thickness of the metal strip, to form a central groove (14a) of the level of the pouring funnel. The cross-section in the lower level of the pouring zone (3) is reduced to the straight section (14). The gap between the straight sections (14) of the two side closing plates (10) at the level of the lower plane in the pouring zone (3) is generally equal to the width of the metal strip. The circumcircle of the pouring zone (3) is generally constant at every level of the side closure plate (10). The pouring funnel (13) of one of each closure plate (10) is symmetrical to a symmetrical plane of the metal strip (4) which is at right angles to the straight section (14) through its centre. ADVANTAGE - The method ensures that the behaviour of the metal at the side zones of the cast strip is consistent with the final strip shape and structure.