B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/21
B21B 1/10 (2006.01) B21B 1/08 (2006.01)
Patent
CA 1179171
METHOD FOR PRODUCING BEAM BLANK FOR UNIVERSAL BEAM Abstract of the Disclosure: A rough rolling process for forming a beam blank for a universal beam from a flat slab, comprises the steps of making a triangular slit of a predetermined apical angle in each of longitudinal side edges of said flat slab and gradually deepening said slit with the apical angle thereof fixed; and widening the slit after the depth of said slit has reached a predetermined value.
404808
Hayashi Chihiro
Kusaba Yoshiaki
Riches Mckenzie & Herbert Llp
Sumitomo Metal Industries Ltd.
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