公开(公告)号：US5634257A

公开(公告)日：1997-06-03

申请号：US443363

申请日：1995-05-17

Applicant: Toshiyuki Kajiwara ,  Yasutsugu Yoshimura ,  Kenji Horii ,  Koichi Seki ,  Hironori Shimogama ,  Tadashi Nishino ,  Chukichi Hanzawa ,  Akira Goto

Inventor： Toshiyuki Kajiwara ,  Yasutsugu Yoshimura ,  Kenji Horii ,  Koichi Seki ,  Hironori Shimogama ,  Tadashi Nishino ,  Chukichi Hanzawa ,  Akira Goto

IPC: B22D11/12 ,  B21B1/00 ,  B21B1/26 ,  B21B1/46 ,  B21B13/02 ,  B21B13/14 ,  B21B13/22 ,  B21B27/10 ,  B21B28/04 ,  B21B29/00 ,  B21B31/18 ,  B21B31/20 ,  B21B45/00 ,  B21B45/06 ,  B21B45/08 ,  B21C47/02

CPC classification number: B21B1/463 ,  B21B1/26 ,  B21B13/023 ,  B21B13/142 ,  B21B13/147 ,  B21B2013/021 ,  B21B2027/103 ,  B21B2031/206 ,  B21B2267/24 ,  B21B28/04 ,  B21B45/004 ,  B21B45/06 ,  B21B45/08 ,  Y10T29/49991

Abstract: By rolling a slab with a thickness of 80 mm or less in a plant including a continuous casting machine and a hot strip rolling mill directly combined with each other, low-speed rolling can be achieved while suppressing a drop of the strip temperature and the occurrence of scales. After a slab 2 cast by a continuous casting machine 1 and being 80 mm or less thick is heated and descaled, it is rough-rolled into a bar with a thickness of 20 to 60 mm by a roughing mill 7 constructed as a 4H-twin mill. After being heated and descaled again, the bar is finish-rolled by finishing mills 19 to 21, each of which employs small-diameter work rolls having a diameter not larger than 500 mm, into a thin plate with a thickness in the range of 1.6 mm to 15 mm or a thick plate with a thickness in the range of 3 mm to 40 mm. The rolling speed on the delivery side of the finishing mills 19 to 21 is set to be as low as 350 m/minute or less with a result of small production scale, and the plant length is set to be not longer than 100 m with a result of small plant space.

Abstract translation: 通过在包括连续铸造机和直接结合在一起的热轧带轧机的设备中轧制厚度为80mm以下的板坯，可以在抑制带材温度的下降和发生的同时实现低速轧制 的尺度。 在通过连续铸造机1铸造并且80mm或更小厚度的板坯2被加热和除鳞之后，通过构造为4H-双轴的粗轧机7将其粗轧成厚度为20至60mm的棒 磨。 再次进行加热除鳞后，将棒材精轧机19〜21精加工成厚度为1.6mm的薄板，每个精轧机使用直径不大于500mm的小直径工作辊 mm至15mm的厚板或厚度在3mm至40mm范围内的厚板。 精轧机19〜21的出料侧的轧制速度设定为350m /分钟以下，生产规模小，生产规模的设定长度不大于100μm， 小植物空间的结果。

公开(公告)号：US5630467A

公开(公告)日：1997-05-20

申请号：US536259

申请日：1995-09-29

Applicant: Yasutsugu Yoshimura ,  Mituru Onose ,  Kenji Horii ,  Koichi Seki ,  Tadashi Nishino ,  Hironori Shimogama ,  Chukichi Hanzawa

Inventor： Yasutsugu Yoshimura ,  Mituru Onose ,  Kenji Horii ,  Koichi Seki ,  Tadashi Nishino ,  Hironori Shimogama ,  Chukichi Hanzawa

IPC: B21B1/46 ,  B21B31/02 ,  B22D11/12 ,  B22D11/124 ,  B22D11/22 ,  B22D11/20

CPC classification number: B22D11/1213 ,  B21B1/463 ,  B21B31/02

Abstract: Guide roller units are made movable back and forth in the direction of thickness of a slab, allowing slab lagging covers to be inserted to and withdrawn from gaps formed between the guide roller units and the slab. Depending on the casting speed, those ones of the guide roller units and the slab lagging covers which are in proper positions are replaced from one to the other for selective use so that the respective lengths of a cooling zone and a heat keeping zone are adjusted to control the cooling rate of the slab in a positive manner. The slab temperature can be kept at a value capable of carrying out rolling regardless of change in the casting speed depending on variations in the amount of molten steel supplied.

Abstract translation: 引导辊单元可在板坯的厚度方向上来回移动，允许板坯滞留盖被插入到引导辊单元和板之间形成的间隙中并从中取出。 取决于铸造速度，那些位于适当位置的导向辊单元和板坯滞留盖被替换为选择性使用，使得冷却区和保温区的各自长度被调整为 以积极的方式控制板坯的冷却速度。 不管根据供给的钢水量的变化，铸造速度的变化，能够将板坯温度保持在能够进行轧制的值。