FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Roll 1150 mm-dia body periphery includes round-section pass with tangential tapers composed of hammer with central angle of 70 degrees, grinding section with central angle of 100 degrees, angle of lengthwise taper with central angle of 40 degrees and idle section with central angle of 150 degrees. Angles of crosswise taper at hammer section from zero point to central angle are invariable and make 35 degrees. At hammer section with central angle of 50 degrees with transition to grinding section with central angle of 20 degrees crosswise taper angles smoothly decrease from 35 to 22 degrees while at grinding section with central angle of 80 degrees there are constant and make 22 degrees. At lengthwise taper angle of 40 degrees with transition to idle section with central angle of 15 degrees crosswise taper angles smoothly decrease from 22 to 35 degrees while at idle section of 135 degrees with transition to hammer with central angle of 20 degrees they make 35 degrees.
EFFECT: higher precision, metal saving.
1 tbl
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