Liquid-cooled ingot mold for the continuous casting of steel billets in the form of slabs

A liquid-cooled plate mould with adjustable width for the continuous casting of billets from steel in the form of slabs having a thickness of less than 100 mm, the mould having a pour-in side (4), and slab outlet end (5) and a direction of casting;

• the mould comprising:
• oppositely disposed broad side plates (1) forming in the direction of casting a pair of curved mould walls;
• narrow side plates (2) slidably disposed between the broad side plates for increasing the width of the slab along a region of adjustment (3') extending from a smallest slab width to a relatively larger slab width, the narrow side plates being arranged substantially parallel to one another along the height of the mould;
• the broad side plates (1) including a cavity extending along at least the smallest slab width, the cavity having a curve length, a chord length and a depth (13), the depth of the cavity of the curved mould being at most 12 mm per 1,000 mm slab width at the pour-in side (4) of the mould;
• the shape of the broad side plates (1) at the slab outlet end (5) of the mould corresponding to the slab being produced, the broad side plates (1) being constructed so as to be concave at the slab outlet end (5) of the mould in such a way that the depth (13) of the mould walls forming the curve is still at least 0.5 to 2 mm as seen in cross-section;
• the broad side plates having a plane inner surface in the region of adjustment (3') of the narrow side plates (2);
• and
• a plurality of ducts (8) within the broad side plates (1) for cooling the mould.