| 摘要 |
FIELD: rolled stock production, namely manufacture of cold bent sections in multistand section bending mills. SUBSTANCE: section bending mill includes successively arranged duo stands with upper and lower rolls. Roll barrels have cylindrical and conical portions. At shaping strips with thickness 0.5-3.0 mm, in all stands lower rolls barrels with inclination angle of cone generatrices of conical portions relative to roll axis <EMI ID=0.204 HE=3 WI=6 TI=CHI>=60-70 degrees have mean cylindrical portion and two conical portions at both sides of cylindrical one. Cylindrical surfaces of said mean portion are gummed by plastics. Barrels of upper rolls are identical but their mean portions are gummed by plastic only in central zone whose width is equal to 0.5-0.7 of that of cylindrical one. EFFECT: enlarged manufacturing possibilities of mill, lowered labor consumption for shaping operations. 3 cl, 1 dwg , 1 exp
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