B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/25
B21B 1/12 (2006.01)
Patent
CA 1056626
ABSTRACT OF THE DISCLOSURE In the rolling of metal material to round cross- sectional shape through a succession of three roll stands with the horizontal-horizontal-vertical, or vertical-vertical- horizontal rolls arranged in this order in the rolling down direction for achievement of increased accuracy of dimensional control at finish, an initial metal stock of specific oval cross-section is rolled to an intermediate and small reduction through the first and second stands forming specific oval groove, and then to a finish and small reduction through the third stand forming a round groove.
268758
Jonishi Katsunori
Miura Sei
Nishikubo Michio
Toyoda Toshiaki
Yoneta Kouichi
LandOfFree
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