B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/26
B21B 1/00 (2006.01) B21B 39/16 (2006.01)
Patent
CA 1192425
Abstract of the Disclosure A method of rolling steel rods or wires by grooveless rolls for reducing sectional areas of the rods or wires achieves a stable rolling operation with high efficiency by limiting to less than a predetermined value a ratio of a long side to a short side of a cross-section of a rectangular cross-sectional blank material which has passed through each pair of grooveless rolls or limiting a ratio of a diameter of each pair of grooveless rolls to a gap therebetween. A method of rolling steel rods or wires by grooveless rolls also achieves high elongation efficiency to make stable the rolling operation by limiting a ratio of a diameter of each pair of grooveless rolls to a gap therebetween. A grooveless roll entry guide for use in grooveless rolling securely holds a blank material from an entry to an exit in a gap between a pair of grooveless rolls to eliminate overturns at ends of the blank material and fins extending from the material due to the overturns.
402624
Inoue Masataka
Noda Akio
Takeda Ryo
Tanaka Teruaki
Yanazawa Tadaaki
Kawasaki Steel Corporation
Smart & Biggar
LandOfFree
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