| 摘要 |
FIELD: rolling different-diameter wire of round rods fed from stage of rough rolling. SUBSTANCE: in rolling mill between cogging mill BM and sizing mill SM mini-cogging mill MBM is arranged as reducer for intermediate rolling. Cogging mill BM allows to use leading group and rear group or only leading group at idle passing through rear group or it allows to by-pass leading and rear groups. Mini-cogging mill BMB may be removed from rolling line due to by-passing. Sizing mill SM has two sets of rolls SM1,SM2; it is possible to use both sets or only one of sets and to by-pass other set. Combinations of using and non-using rolls allow to make wire products of different diameters (up to 19 different diameters) from round rods of the same diameter. EFFECT: enhanced efficiency, simplified process for changing diameters of wire, elimination of long period for changing rolls of cogging mill. 2 cl, 8 dwg, 2 tbl
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