| 摘要 |
A mould for the continuous casting of metal, preferably steel, has been provided, into strands of substantially quadrangular cross section. Between an inlet side (2) and an outlet side (3), it has a mould cavity (13) which is open at both ends and which at the inlet end (2), along a circumference line of the mould cavity cross section between corners ot the mould cavity, has at least two circumference sections. Each one of these delimits a cross-sectional enlargement of the mould cavity (13) in relation with the same circumferential cross section of the mould cavity cross section at the outlet end (3), the cross-sectional enlargements diminishing in the feeding direction of the strand. All corner angles ( PHI ) change from a higher value at the inlet side (2) of the mould, to a lower value at the outler side (3) of the mould, up to half of the angle alteration taking place in the two uppermost twelfths of the total length of the mould. This design results in a better contact and support for the strand shell, the risk of corner cracks being substantially reduced.
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