Rolling method for parallel-flange steel shapes
AssigneeSumitomo Metal Industries, Ltd.
InventorsYoshiaki Kusaba, Hiroyuki Matoba, Tsuneo Yamada
Life of this patent
Estimating the term…
Abstract
A rolling method for parallel-flange steel shapes is disclosed, which comprises the steps of: rough rolling a rolling material in a breakdown mill to form a web and two flanges connected to the ends of the web; performing intermediate rolling to reduce the flanges to substatially their final dimensions; and performing finish rolling in a universal finishing mill to reduce the web height by rolling the outer surfaces of the flanges with vertical rolls without the inner surfaces of the flanges contacting the lateral surfaces of the horizontal rolls of the universal finishing mill.
Claims19
A rolling method for parallel-flange steel shapes comprising:
- rough rolling a rolling material in a breakdown mill so as to form a web and two flanges connected to ends of the web;
- performing intermediate rolling so as to reduce the flanges to substantially their final dimensions;
- and
- performing finishing rolling in universal finishing mill so as to reduce web height between outer surfaces of the flanges by rolling the outer surfaces of the flanges with vertical rolls without inner surfaces of the flanges contacting lateral surfaces of horizontal rolls of the universal finishing mill.
A rolling method for parallel-flange steel shapes comprising:
- rough rolling a rolling material in a breakdown mill so as to form a web and two flanges connected to ends of the web;
- performing intermediate rolling so as to reduce the flanges to substantially their final dimensions;
- performing finishing rolling of the web;
- and
- reducing web height between outer surfaces of the flanges by rolling in a universal shape-adjusting mill whose rolls are all idling rolls and which has variable-width horizontal rolls.
A rolling method for parallel-flange steel shapes comprising:
- rough rolling a rolling material in a breakdown mill so as to form a web and two flanges connected to ends of the web;
- performing intermediate rolling so as to reduce the flanges to substantially their final dimensions;
- performing finishing rolling of the web;
- and
- reducing web height between outer surfaces of the flanges by rolling in a universal shape-adjusting mill which has variable-width horizontal rolls, at least one of the horizontal rolls and vertical rolls of said universal mill being provided an auxiliary drive force.
Dependencies are inferred from the claim text.