Method of widthwise rolling of rolled material and apparatus therefor

An apparatus for rolling a rolled material widthwise thereof comprising:

• a widthwise rolling mill for rolling the rolled material widthwise thereof;
• and
• a working device comprising shaping means and pressing means;
• said shaping means being located on at least one of the upstream side and the downstream side of said widthwise rolling mill with respect to the direction of movement of the rolled material being rolled, said shaping means comprising a pair of shaping tool members configured for shaping a lengthwise end portion of the rolled material by compression working in such a manner that the lengthwise end portion has a progressively reducing width portion in which the width is progressively reduced in going toward the end of the rolled material, and a uniform width portion contiguous with the progressively reducing width portion and having a width equal to the minimum width of the progressively reducing width portion between its end contiguous with the progressively reducing width portion and the end of the rolled material, in such a manner that said uniform width portion has a length at least over 1/3 the width of the rolled material before having its end portion shaped;
• said pressing means being operative to urge said shaping means to move toward and away from the rolled material widthwise thereof;
• and
• said pair of shaping tool members of said shaping means each comprising substantially symmetrical inclined portions inclined with respect to the center line of the rolled material for shaping both the leading end portion and the trailing end portion of the rolled material to form the progressively reducing width portion therein, and a parallel portion interposed between the inclined portions to form the uniform width portion disposed between the progressively reducing width portion and the end of the rolled material, said parallel portion being parallel to the center line of the rolled material.

An apparatus for rolling a rolled material in the form of a flat metal having a large width as contrasted with the thickness, such as a slab of metal, widthwise thereof, comprising:

• a widthwise rolling mill for rolling the material widthwise thereof;
• and
• a working device comprising shaping means and pressing means;
• said shaping means being located on at least one of the upstream side and the downstream side of said widthwise rolling mill with respect to the direction of movement of the rolled material being rolled, said shaping means comprising a pair of shaping tool members configured for shaping a lengthwise end portion of the rolled material by compression working while the rolled material remains stationary in such a manner that the lengthwise end portion has a progressively reducing width portion in which the width is progressively reduced in going toward the end of the rolled material, and a uniform width portion contiguous with the progressively reducing width portion and having a width equal to the minimum width of the progressively reducing width portion between its end contiguous with the progressively reducing width portion and the end of the rolled material, in such a manner that said uniform width portion has a length at least over 1/3 the width of the rolled material before having its end portion shaped;
• said pressing means being operative to urge said shaping means to move toward and away from the rolled material widthwise thereof;
• and
• said pair of shaping tool members of said shaping means each comprising substantially symmetrical inclined portions inclined with respect to the center line of the rolled material for shaping both the leading end portion and the trailing end portion of the rolled material to form the progressively reducing width portion therein, and a parallel portion interposed between said inclined portions to form the uniform width portion between the progressively reducing width portion and the end of the rolled material, said parallel portion being parallel to the center line of the rolled material.