METHOD OF ROLLING WIRE AND RODS IN REVERSING MILLS AND GUIDE FITTING OF ROLLING STANDS Russian patent published in 1998 - IPC

FIELD: wire and rod rolling in reversing two- and three-high rolling mills. SUBSTANCE: blank is rolled in non-grooved rolls with outlet cross section 900 mm²< A < 15700 mm² and in dependance upon material quality and number of flat passes said blank is rolled in one or two light cut-in passes before feeding it to forming passes. Said cut-in pass is set according to relation of height h1 of rolled piece to doubled depth of roll cut-in (2t) being in range 2≤h₁/2t≤10.. In first rolling stand four-roller assembly is arranged near inlet side of flat rolls, in next rolling stands double fitting is arranged and at outlet side guide is arranged. EFFECT: simplification of roll and fitting tuning, elimination of wear caused by action of sharpened edges after last flat pass due to correct selection of size of first forming pass, restriction of diagonal shift of rolled material. 7 cl, 4 dwg