FIELD: metallurgy.
SUBSTANCE: composite mold contains cooled plates with vertical ribs in area of plates joint. Cathetus a and b, forming ribs, are in ratio a/b=1:(1.0-1.3). Relation of small cathetus a to small side h of mold is 1:(15-20), relation of big cathetus b to big side l of mold is 1:(18-24), and relation of small side h to big side l of mold is 1:1.2. Total area of mold is 1075-1080 cm2. Dimensions of mold, located in the range of declared relations, provide reduction of surface defects of uninterruptedly-casted blanks.
EFFECT: increasing of mold stability, improvement of macrostructure of melted uninterruptedly-casted blanks.
1 dwg
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