| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.9 ( March 1984 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Development of an Edge Grinding Device for Hot Rolled Stainless Steel Coil Suenobu Shiiba, Kazushige Akita, Tadashi Yamazaki, Shinji Kosaki, Yasuyuki Niwa, Akihiko Kamiya, Ryuzo Sato |
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Synopsis : In order to eliminate mill edge cracking of stainless steel hot strips in cold rolling, a new edge grinding device has been developed. The device removes microcracks by grinding the mill edge by 0.5mm instead of trimming them by 20 to 25mm. The grinding wheel is set perpendicular to the strip pass line and rotates in a downward cutting direction. Other characteristics are adoption of compressive contact through a coil spring which is indispensable for smooth grinding; the holding of a constant grinding depth by maintaining a steady grinding current; the stopping of wheel rotation when grinding is suspended for preventing a grinding wheel breakage due to thermal stress; and the installation of such devices as a wheel diameter detector and an edge shape detector. The yield of cold rolled strip of AISI430 stainless steel has been improved by as much as 3%. |
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