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1. 发明授权

US5957368A Method of continuously hot rolling steel pieces 失效
标题翻译：连续热轧钢板的方法
公开(公告)号：US5957368A
公开(公告)日：1999-09-28
申请号：US793845
申请日：1997-03-10
申请人： Katsuhiro Takebayashi , Yoshikiyo Tamai , Toshio Imae , Kunio Isobe , Hideyuki Nikaido , Koichi Uemura
发明人： Katsuhiro Takebayashi , Yoshikiyo Tamai , Toshio Imae , Kunio Isobe , Hideyuki Nikaido , Koichi Uemura
IPC分类号： B21B15/00 , B23D15/00 , B23D25/12 , B23K28/02
CPC分类号： B23D15/005 , B21B15/0007 , B21B15/0085 , B23D25/12
摘要： A continuous hot rolling method is available for continuously hot finish rolling steel pieces. The trailing end of a preceding steel piece and the leading end of a succeeding steel piece are cut by a drum shear which sandwiches the steel piece between its upper drum and lower drum, having cutting blades on the peripheries of the drums. The cut ends are heated to raise the temperatures thereof by high-frequency induction heating, pressed against each other to butt-join the cut ends. The joined steel pieces are then supplied to a rolling equipment. The trailing end of the preceding steel piece and the leading end of the succeeding steel piece are cut individually by two pairs of the cutting blades. One pair of the cutting blades has the obverses of the blades oriented in opposite directions in the obverse side and the reverse side of the steel piece. The other pair of cutting blades has the obverses of the blades oriented in the opposite directions relative to the former pair of cutting blades, while each steel piece is transferred to the same direction. The method according to the invention significantly reduces the displacement produced when the steel pieces are joined by applying transverse-type high-frequency induction, thereby realizing stable continuous hot rolling with no breakage of the rolled plate.
摘要翻译： PCT No.PCT / JP96 / 00034 Sec。 371日期1997年3月10日 102（e）1997年3月10日PCT PCT 1996年1月12日PCT公布。公开号WO97 / 02907 日期1997年1月30日连续热轧方法可用于连续热精轧钢片。先前的钢片的后端和后面的钢件的前端由鼓剪切割，该滚筒剪切将钢片夹在其上滚筒和下滚筒之间，在滚筒的周边具有切割刀片。加热切割端，通过高频感应加热使其温度升高，彼此挤压以对接切割端。然后将连接的钢件供应到轧制设备。前两个钢片的后端和后续钢件的前端由两对切割刀片单独切割。一对切割刀片具有在钢板的正面和反面上沿相反方向定向的刀片的相反侧。另一对切割刀片具有相对于前一对切割刀片在相反方向上定向的刀片的相反方向，而每个钢片被转移到相同的方向。根据本发明的方法通过施加横向高频感应来显着降低钢片接合时产生的位移，从而实现稳定的连续热轧而不破坏轧制板。

2. 发明授权

US5720196A Hot-rolling method of steel piece joint during continuous hot-rolling 失效
标题翻译：连续热轧钢板接头热轧方法
公开(公告)号：US5720196A
公开(公告)日：1998-02-24
申请号：US626206
申请日：1996-03-29
申请人： Yoshikiyo Tamai , Katsuhiro Takebayashi , Toshio Imae , Hideyuki Nikaido , Kunio Isobe
发明人： Yoshikiyo Tamai , Katsuhiro Takebayashi , Toshio Imae , Hideyuki Nikaido , Kunio Isobe
IPC分类号： B21B13/02 , B21B15/00 , B21B37/16 , B21B37/26 , B21B37/28 , B21B37/38 , B21B29/00
CPC分类号： B21B37/26 , B21B37/16 , B21B37/28 , B21B13/023 , B21B15/0085 , B21B2269/12 , B21B2273/20 , B21B37/38
摘要： A method for continuously hot-rolling steel pieces, includes butt-joining the rear end of the preceding steel piece and the leading end of the succeeding steel piece, then finish-rolling the butt-joined steel pieces by supplying a continuous hot rolling facility provided with a plurality of stands having a bending function of a work roll. The method involves estimating the variation of the rolling force occurring during rolling the joint of the steel pieces at the non-stationary zone caused by said joint, calculating the changing bending force of the work roll during rolling the joint of the steel pieces from the estimated variation of the rolling force, and determining the pattern for changing the bending force taking account of said changing force, and rolling the joint of the steel pieces by regulating the bending force in response to said pattern over at least one stand, while tracking down the joint of the steel piece immediately after joining.
摘要翻译：一种用于连续热轧钢板的方法，包括将前一个钢片的后端和随后的钢件的前端对接，然后通过提供连续的热轧设备来提供对接的对接的钢件具有多个具有工作辊的弯曲功能的支架。该方法包括估计在由所述接头引起的在非固定区域的钢板接头滚动期间产生的轧制力的变化，计算在从钢带的接合期间轧制轧制过程中工作辊的变化的弯曲力轧制力的变化，以及考虑到所述变形力而确定用于改变弯曲力的图案，以及通过在至少一个支架上响应于所述图案调节弯曲力来滚动钢板的接合，同时跟踪加工后立即关闭钢板。

3. 发明授权

US5513511A Method of producing seamless steel tube by using mandrel mill 失效
标题翻译：使用芯棒式无缝管轧机生产无缝钢管的方法
公开(公告)号：US5513511A
公开(公告)日：1996-05-07
申请号：US231333
申请日：1994-04-22
申请人： Toshio Imae , Hiromu Oka
发明人： Toshio Imae , Hiromu Oka
IPC分类号： B21B17/04
CPC分类号： B21B17/04
摘要： A mandrel mill for rolling seamless steel tubes includes a plurality of roll stands each having a pair of rolls defining a roll groove therebetween, an axis of the rolls of each roll stand being orthogonal to the axis of the rolls of the adjacent roll stands. The mandrel mill further includes a mandrel bar disposed in the roll grooves configured by the roll stands. The ratio between the radius of curvature of a groove bottom of the groove and a distance between the groove bottom of the roll groove of the first stand ranges from 0.46 to 0.54, and that of the second stand ranges from 0.48 to 0.52.
摘要翻译：用于轧制无缝钢管的芯棒式无缝管轧机包括多个辊架，每个辊架具有在其间限定辊槽的一对辊，每个辊架的辊的轴线与相邻辊架的辊的轴线正交。芯棒式无缝管轧机还包括设置在由辊架构成的辊槽中的芯棒。槽的凹槽底部的曲率半径与第一支架的辊槽的槽底之间的距离的比率为0.46〜0.54，第二支架的槽底的距离为0.48〜0.52。

4. 发明授权

US5218851A Mandrel mill capable of preventing stripping miss 失效
标题翻译： MANDREL MILL可以防止剥离错误
公开(公告)号：US5218851A
公开(公告)日：1993-06-15
申请号：US898436
申请日：1992-06-15
申请人： Toshio Imae
发明人： Toshio Imae
IPC分类号： B21B17/04
CPC分类号： B21B17/04
摘要： A mandrel mill for rolling a tubing in a pass between a mandrel bar and a plurality of serially arranged roll stands. Each roll stand has a plurality of pairs of grooved rolls whose grooves are paired to define a part of the pass. The grooves of the rolls of a first roll stand define a hole having a circumference of not more than 1.12 times the outer circumference of a tubing at the exit of the final roll stand. The grooves of the second-stand rolls define a hole having a circumference of not more than 1.06 times that outer circumference, and those of the third-stand rolls define a hole having a circumference of not more than 1.02 times that outer circumference. Thus, the mandrel mill is capable of preventing stripping miss even when the billet is of a high-alloy steel.

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