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1. 发明专利

JPS6254528A FLUID PRESSURE TYPE ROLLING MILL 失效
公开(公告)号：JPS6254528A
公开(公告)日：1987-03-10
申请号：JP19189585
申请日：1985-09-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： OTSUKA SHINICHIRO , NAKAMURA MICHIHIRO , YANAGI KENICHI , YOSHIHARA AKIYO
IPC分类号： B21B1/46 , B21C37/00 , B21C37/02 , B21D26/021
摘要： PURPOSE:To make a work roller and a backup roller unnecessary, and to make the titled mill small in size by injecting a high pressure fluid to both faces of the upper and the lower directions of a material to be rolled, from innumerable inject holes of opposed rolling nozzles, and executing the rolling. CONSTITUTION:A gap size of an upper rolling nozzle 12 and a lower rolling nozzle 13 is set, and subsequently, by moving finely a turning shaft, an inclined angle of a tube plate part 16 of the upper rolling nozzle 12 is adjusted so as to correspond to a necessary rolling rate. Next, salt or its mixture is raised to a high pressure by a pressurizing device, supplied to the upper rolling nozzle 12 and the lower rolling nozzle 13 and injected from the respective inject holes 14, 15. At the same time, a thin steel plate 11 whose temperature has been controlled to a comparatively high temperature is made to pass through a gap consisting of the respective tube plate parts 16, 17 of both the rolling nozzles 12, 13. The thin steel plate 11 is rolled to a necessary plate thickness size by a pressure force of a molten salt which has been injected.

2. 发明专利

JPS6250008A ROLLING MILL 失效
公开(公告)号：JPS6250008A
公开(公告)日：1987-03-04
申请号：JP18979985
申请日：1985-08-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： OTSUKA SHINICHIRO , NAKAMURA MICHIHIRO , YANAGI KENICHI , YOSHIHARA AKIYO
IPC分类号： B21B1/46 , B21B13/00
摘要： PURPOSE:To control the size of a sheet thickness with good accuracy by backing up and bending work rolls by the high-pressure fluid injected from backup nozzles and controlling the pressure of the high-pressure fluid. CONSTITUTION:The spacing between the upper and lower work rolls 11 and 12 is set in the stage of rolling a thin sheet 10 fed from a temp. controller B. The backup nozzles 23, 24 are also vertically moved in this stage while the spacings from the rolls 11, 12 are maintained. The work rolls 11, 12 are respectively pressurized by the backup rolls 13, 15 in the case of rolling the thin sheet 10 by the work rolls 11, 12. The high-pressure water is at the same time forced into the backup nozzles 23, 24 so that the high-pressure water is injected from injection holes 25, 28 to the rolls 11, 12 respectively. The sheet thickness size in the transverse direction of the rolled sheet 10 is measured by a sheet thickness control device and the pressure of the high-pressure water, i.e., the bending rate of the respective rolls 11, 12 is adjusted by which the size of the sheet thickness is accurately controlled.

3. 发明专利

JPS63180312A GRINDING METHOD FOR ROLLING ROLL 失效
公开(公告)号：JPS63180312A
公开(公告)日：1988-07-25
申请号：JP1005387
申请日：1987-01-21
申请人： MITSUBISHI HEAVY IND LTD
发明人： IIFUSHI JUNICHI , HAYASHI KANJI , OTSUKA SHINICHIRO
IPC分类号： B24B5/37 , B21B28/04
摘要： PURPOSE:To accurately and efficiently grinding rolls without use of a special grinding device by rotating rolls by giving a speed difference between rolls being in a contact condition without removing the rolls. CONSTITUTION:Rolls 2 are brought into contact with each other to have a cross angle of theta between their axial lines. In that situation, both the rolls 2 are pressed by a prescribed load and rotated. A slip movement in the axial direction between the rolls 2 by a difference between respective peripheral speeds of the rolls 2, so that the entire surface of the rolls 2 is grinded. The rolls 2 are efficiently ground by that method.

4. 发明专利

JPS61245908A ROLLING MILL HAVING ROLL SHIFT FUNCTION 失效
公开(公告)号：JPS61245908A
公开(公告)日：1986-11-01
申请号：JP8757485
申请日：1985-04-25
申请人： MITSUBISHI HEAVY IND LTD
发明人： OTSUKA SHINICHIRO , FUKUZAKI TOSHIHIRO
IPC分类号： B21B13/02 , B21B13/14 , B21B31/18
摘要： PURPOSE:To make uniform the wear of work rolls and to improve the efficiency of a rolling operation by moving back and forth roll chocks of work rolls in the axial direction of the work rolls by the actuation of cylinders for roll shifting thereby shifting the rolls. CONSTITUTION:The roll chock 21 for supporting the work roll 20 is horizontally moved by driving of an electric motor (not shown) via a cross bar 23, a cross screw 25, a worm reduction gear 26, etc. to intersect the roll 20 at a required angle with the direction perpendicular to the rolling direction. A hydraulic cylinder 30 supported by the above-mentioned cross bar 23 and a hydraulic cylinder 31 supported to a chock clamping plate 32 which is freely openable and closable for the purpose of roll changing are provided so as to sandwich a thrust rest 29 provided to the roll chock 21 to move back and forth the chock 21 in the axial direction of the work roll, by which the roll 20 is shifted. The increase in the number of rolling rolls at the same draft and the cross return rolling are thus made possible in addition to the increase in the crown control capacity of the rolling mill.

5. 发明专利

JPS61289907A ROLLING MILL HAVING ROL SHIFT FUNCTION 失效
公开(公告)号：JPS61289907A
公开(公告)日：1986-12-19
申请号：JP12997385
申请日：1985-06-17
申请人： MITSUBISHI HEAVY IND LTD
发明人： OTSUKA SHINICHIRO , FUKUZAKI TOSHIHIRO
IPC分类号： B21B13/14 , B21B31/18
摘要： PURPOSE:To increase the number of rolling with the same width by providing a pressing cylinde to one side of a roll chock with a thrust receiver in-between and disposing a motor screw mechanism to the other side. CONSTITUTION:A roll chock assembly 30 is constituted of a chock 22, a link 35 to connect right and left levers 33 and the chock thrust receiver 36 coupled to the levers 33. A rod 38 of the pressing cylinder 37 built in a cross bar 25 is pressed to one side of the receiver 36 and a screw 41 of the motor screw mechanism 40 is disposed to the other side of the receiver 36. Work rolls 20 are axially moved at every rolling pass by such mechanism, by which the wear of the rolls 20 is prevented and the function to disperse the wear of the roll surface is added. The number of rolling in the same width rolling is thus increased.

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