公开(公告)号：US4966025A

公开(公告)日：1990-10-30

申请号：US410616

申请日：1989-09-21

申请人： Mitsuhiko Ichikawa ,  Bunpei Masuda ,  Nobuhiro Tazoe ,  Masujiro Yoshida ,  Kenichi Ide

发明人： Mitsuhiko Ichikawa ,  Bunpei Masuda ,  Nobuhiro Tazoe ,  Masujiro Yoshida ,  Kenichi Ide

IPC分类号： B21B15/00 ,  B21J1/04 ,  B30B7/04

CPC分类号： B21B15/0035

摘要： Each of a pair of opposing slides which is equipped with a die and is connected through a connecting rod to an eccentric portion of a crankshaft is displaced by a width setting device in the direction of width of a slab so as to set the width of a slab to be forged between the pair of dies. After the setting of the width of a slab to be forged, the crankshaft is rotated to cause each of the slider-pair to reciprocate not only in the direction of width of the slab but also in the direction in parallel with the slab transportation line, whereby a slab is forged.

公开(公告)号：US5001820A

公开(公告)日：1991-03-26

申请号：US544332

申请日：1990-06-27

申请人： Masujiro Yoshida ,  Masao Nitanda ,  Heiji Kato ,  Isao Imai ,  Tsukasa Oyauchi

发明人： Masujiro Yoshida ,  Masao Nitanda ,  Heiji Kato ,  Isao Imai ,  Tsukasa Oyauchi

IPC分类号： B21B27/05

CPC分类号： B21B27/05

摘要： Axially extending liquid-tight tapered spaces are defined in the barrel of a roll body. Tapered pistons are fitted in the spaces for engagement and disengagement with a bore inner surface defining the tapered spaces. A liquid under pressure is supplied through liquid passages to some of liquid pressure chambers at opposite ends of the tapered pistons so that the barrel of the roll body is increased or decreased in diameter. When the rolling forces are removed from the roll body, the roll body returns to its initial straight state.

摘要翻译： 在辊体的筒体中限定有轴向延伸的液密锥形空间。 锥形活塞安装在空间中，用于与限定锥形空间的孔内表面接合和分离。 压力下的液体通过液体通道供应到锥形活塞的相对端的一些液压室，使得辊体的筒体的直径增大或减小。 当滚动体从辊体移除时，辊体返回其初始直线状态。