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1. 发明专利

JPS63313623A ROLLING REDUCTION APPARATUS FOR CONTINUOUSLY CAST SLAB 失效
公开(公告)号：JPS63313623A
公开(公告)日：1988-12-21
申请号：JP14678287
申请日：1987-06-12
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： HONJO HISASHI , MAEDA KATSUHIRO
IPC分类号： B22D11/128 , B21B15/00 , B21J1/04
摘要： PURPOSE:To improve quality of a cast slab by arranging a sending cylinder together with a cylinder for rolling reduction, which is executed to the cast slab through wheels and further setting pressing tool units as changeable for bar blocks. CONSTITUTION:The bar blocks 8, 9 having outer bar 14 and inner bar 15, which support the cast slab 3 through inside and outside wheels, are arranged. Then, the pressing tool units 50, 51 to be possible to set in the rolling reduction apparatus exchanging with the bar blocks 8, 9 are prepared. After continuously working while alternately supporting rolling reduction of the cast slab 3 with the outer bar 14 and the inner bar 15, the pressing tool units 50 is pushed into the apparatus by utilizing auxiliary rail. A stand block 52 is pulled up through a balance cylinder 42 and the tool unit 50 is arranged and further together with the tool unit 51 are respectively changed for the bar blocks 8, 9. By this method, as the press reduction is executed, the quality of the cast slab 3 is improved.

2. 发明专利

JPS63303670A APPARATUS FOR CONTROLLING ROLLING REDUCTION TO CAST SLAB IN CONTINUOUSLY CAST SLAB ROLLING REDUCTION SUPPORT APPARATUS 失效
公开(公告)号：JPS63303670A
公开(公告)日：1988-12-12
申请号：JP13686987
申请日：1987-05-30
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： HONJO HISASHI , MATSUSHITA TOSHIRO , HASHIMOTO AKIRA , NISHIHARA TAKASHI , SHIRAI TOKIYA
IPC分类号： B22D11/128 , B22D11/20
摘要： PURPOSE:To surely execute rolling reduction support for a cast slab by arranging control valves respectively to cylinders for rolling reduction and for shifting of the cast slab and arranging change-over means for cutting-off between a controller and the control valve for the shifting cylinder. CONSTITUTION:Servo valves 49a, 49b, 49c, 49d are arranged respectively to the cylinders 44, 42 for rolling reduction and the cylinder 19, 28 for shifting of the cast slab. A discriminator 46 inputting the velocity Vcc of the cast slab is connected with a controller 48 through shifting velocity computing element 47. Further, the controller 48 is connected with the servo valves 49a, 49c and the change-over switches 52b, 52d are arranged between the controller 48 and comparators 51b, 51d. As the same way, the change-over switches 53b, 53d, 55b, 55d are respectively arranged. When the sending velocity of the cast slab is less than the lower limit velocity Vccd, working of the cylinders 19, 28 at the time of rolling reduction is cut off. By this method, the damage of the device is prevented and the cast slab is surely supported to the rolling reduction.

3. 发明专利

JPS6240911A WIDTH ROLLING MILL 失效
公开(公告)号：JPS6240911A
公开(公告)日：1987-02-21
申请号：JP18274785
申请日：1985-08-20
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , HONJO HISASHI , FUJISHIMA IKUO , KAWAMURA KUNIO , MATOBA SATORU
IPC分类号： B21B39/14 , B21B13/06 , B21B31/16
摘要： PURPOSE:To perform the width rolling reduction without unreasoning nor buckling and to make the equipment cost inexpensively with simple and small-sized mechanism by performing the width rolling reduction of a strip end part with the vertical roll with a vertically and freely movable roll and by enabling the tilting in the longitudinal direction of the strip. CONSTITUTION:The upper and lower pressing rolls 13, 14 to press the end part of a strip with hydraulic cylinders 9, 10 are provided to the upper and lower of the york 5 supporting a vertical roll 8. The horizontal axis 4 of the york 5 to support the vertical roll 8 is made tiltable in the longitudinal direction of the strip by a worm 22 and worm wheel 17. The above assembly york 5 advances the vertical roll 8 by the oil pressure of the cylinder chamber 29 of the horizontal axis 4 to give the width rolling reduction to the strip. The buckling generation of the strip due to the width rolling reduction is prevented and good width rolling reduction is performed without any unreasoning on the strip even with the tilting of the vertical roll 8. The mechanism is made simple and small-sized to reduce the equipment cost as well.

4. 发明专利

JPS61279307A METHOD AND CONTROL DEVICE FOR CROSS ROLLING DOWN 失效
公开(公告)号：JPS61279307A
公开(公告)日：1986-12-10
申请号：JP12109185
申请日：1985-06-04
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , HONJO HISASHI , FUJISHIMA IKUO , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B37/22 , B21B1/22 , B21B13/06 , B21B37/00 , B21B37/50
摘要： PURPOSE:To prevent the buckling and draw-in of a strip material in cross rolling down by the vertical rolling pairs between rolling mills with looper tension application by controlling the reduction with horizontal rolls and reduction with the vertical rolls by the difference in the tension in the transverse direction of the looper. CONSTITUTION:The strip material 8 is given with a prescribed tension by the looper 7 between the horizontal rolls and is cross rolled down by the vertical roll pairs 10a, 10b. The pressures of the load cells 9a, 9b of the looper 7 and the pressure difference are calculated 13 and right and left screw down cylinders 5a, 5b are controlled by a gap controller 14. The right and left cross screw down cylinders 10a, 10b are controlled by a screw down controller 15. The roll gap and the rolling-down position of the vertical rolls of the front stage stand are adjusted and the buckling and draw-in of the material 8 are prevented. The accuracy of the strip width is further improved and the improvement of the edge drops and the formation of the rectangular end faces are made possible.

5. 发明专利

JPH01321054A DEVICE FOR SUPPORTING ROLLING REDUCTION OF CONTINUOUSLY CAST SLAB 失效
公开(公告)号：JPH01321054A
公开(公告)日：1989-12-27
申请号：JP15286388
申请日：1988-06-21
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： HONJO HISASHI , SATO HISASHI , NITANDA MASAO , NISHIHARA TAKASHI , SHIRAI TOKIYA , SEZE AKIFUMI
IPC分类号： B22D11/128
摘要： PURPOSE:To substantially execute rolling reduction only to non-solidified layer in a cast slab, to reduce the rolling reduction force by half and to stabilize inner quality of the cast slab by arranging rolling reduction liner to be possible to change into contacting state or non-contacting state with the cast slab surface at contacting part of an inner and an outer bars with the cast slab positioning at both sides to width direction of the cast slab in the title device. CONSTITUTION:At the time of executing the rolling reduction of the cast slab 3, cylinder 32 in the outer bar 12 or further the inner bar 13 positioning to the whole width part of solidified layers 6 at both sides is worked in accordance with the width size of the cast slab 3. In this result, the rolling reduction liner 29 connecting with the cylinder 32 is shifted to the outer bar 12 and the inner bar 13 along dovetail grooves 30. In this case, as the reverse tapered face having inclination in the groove 30 is formed, the contacting face of the liner 29 with the cast slab is made to non-contacting state to the surface of the cast slab 3. Under this condition, at the time of executing the rolling reduction of the cast slab 3, as the rolling reduction is executed to the non-solidified layer 2 at the center of the cast slab 3 contacting with the liner 29 and is not executed to the non-contacting solidified layer 6 at both sides of the cast slab 3, the rolling reduction is executed only to the layer 2, and as the rolling reduction force needed at this time is very little, load to the equipment can be drastically reduced.

6. 发明专利

JPS62151210A VERTICAL TYPE ROLLING MILL 失效
公开(公告)号：JPS62151210A
公开(公告)日：1987-07-06
申请号：JP29645685
申请日：1985-12-25
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , HONJO HISASHI , FUJISHIMA IKUO , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B13/06
摘要： PURPOSE:To perform a width rolling reduction with the optimum rolling reduction force, to increase the plate width accuracy and to improve the edge drop by fitting a small diameter cylinder into the large diameter cylinder movable in the width direction of a rolling stock and by selecting the cylinder according to the plate thickness. CONSTITUTION:A vertical roll 4 is moved in the direction apart from the large diameter cylinder chamber 11 which is supported with the stroke adjustably, when a pressure liquid is fed to the anti-vertical roll side inside the large diameter cylinder chamber 11. Now the vertical roll 4 fitted to the supporting part at the tip is advanced at high speed. In case of the rolling stock being a thick one, the rolling reduction is started with its contact with the width end of the rolling stock by advancing as it is. In case of a thin one on the other hand, a large diameter piston 13 is stopped prior to the vertical roll 4 coming into contact with the rolling stock and the rolling reduction with small rolling reduction force and the contact with the rolling stock thereafter is performed by advancing the small diameter piston 13. In this case the vertical roll 4 is inclined by turning the worm wheel 9 which is linked by a key 15 to the outer periphery of the small diameter cylinder chamber 11 by driving a worm 12 by driving the motor in an inclining mechanism 6, in case of the rolling stock having a certain angle for the level.

7. 发明专利

JPS6281203A CROSS ROLLING METHOD FOR STRIP 失效
公开(公告)号：JPS6281203A
公开(公告)日：1987-04-14
申请号：JP22325885
申请日：1985-10-07
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , FUJISHIMA IKUO , HONJO HISASHI , OOYA KIYOSHI , MATOBA SATORU
IPC分类号： B21B1/24
摘要： PURPOSE:To permit stable cross rolling of a strip by making the angle of inclination of a strip in contact with the vertical rolls of an edger with respect to the horizontal line larger than the angle of inclination of the vertical rolls with respect to the perpendicular. CONSTITUTION:The strip S is lifted and supported by the rolls of a looper S. A fluid pressure cylinder 5b is actuated to lower the roll 5a of an upper press roll device 5 to press the strip S downward by the roll 5a. The vertical roll 4a is inclined with perpendicular and the strip S is cross rolled by the vertical roll 4a under the condition theta1>=thetae. The above-mentioned theta1, thetae are respectively the angle of inclination of the strip S in the part in contact with the roll 4a with respect to the horizontal line and the angle of inclination of the vertical roll 4a with respect to the perpendicular. If the cross rolling is executed under the condition theta1=thetae, the stable rolling is executed as the ascending and descending of the roll are obviated. If the cross rolling is executed under the condition theta1>thetae, the strip S receives the upward force in the contact part with the vertical roll 4a but is pressed down by the roll 5a and therefore, the strip is kept in the state of receiving the 7 upward force without ascending and the stable rolling is executed.

8. 发明专利

JPS61279302A FINISH ROLLING DEVICE 失效
公开(公告)号：JPS61279302A
公开(公告)日：1986-12-10
申请号：JP12109285
申请日：1985-06-04
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , HONJO HISASHI , FUJISHIMA IKUO , OOYA KIYOSHI , IGARASHI YASUO
IPC分类号： B21B1/24
摘要： PURPOSE:To expand the width adjustable range in a thin sheet region and to improve the accuracy of a sheet width and the yield by disposing edgers before and after the rolling stand of one stand before the final rolling stand of a tandem-arranged finish rolling device and adjusting the width. CONSTITUTION:The edgers 1, 2 are disposed before and after the rolling stand S2 of one stand before the final rolling stand S1 of the tandem-arranged finish rolling stand S1-Sn. The dogbones to eliminate edge drops are formed by disposing usually the edger in the inlet part in rolling of a thin sheet to make uniform the width and thickness but the edge drops are generated again during finish rolling. The finished thin sheet 3 has therefore no edge drops if the above- mentioned edgers 1, 2 are disposed. The accuracy of the sheet thickness and width is thus uniformly improved and the yield of the material is improved.

9. 发明专利

JPH0191946A DEVICE FOR SHIFTING DEPRESSING INSTRUMENT FOR CAST SLAB 失效
公开(公告)号：JPH0191946A
公开(公告)日：1989-04-11
申请号：JP24919187
申请日：1987-10-02
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： HONJO HISASHI , MATSUSHITA TOSHIRO , NISHIHARA TAKASHI , HASHIMOTO AKIRA
IPC分类号： B22D11/128 , B22D11/20
摘要： PURPOSE:To restrain the development of unnecessary reaction to a cast slab by arranging a detector for depressing load and a dislocation meter for sending cylinder in the continuously cast slab depressing supporting device and controlling the cylinder so that the sending speed in range of approach running of the bar sending movement becomes the advancing speed of the cast slab. CONSTITUTION:In sending movement of an inner and outer bars 13, 12 in the continuously cast slab depressing supporting device, the dislocation in the range R of the approach running is measured by the dislocation meter 32, and the sending cylinders 27, 28 are controlled through a controller 33 so that the sending speed becomes the advancing speed of the cast slab 3. Then, period P of the cast slab depressing with the bars is detected by a load cell 29 and output of the cylinders is controlled corresponding to the depressing force and holding of the cast slab 3 is released at the range S. By this method, the development of unnecessary reaction in the cast slab 3 can be prevented.

10. 发明专利

JPH0191945A CAST SLAB DEPRESSING DEVICE 失效
公开(公告)号：JPH0191945A
公开(公告)日：1989-04-11
申请号：JP24919087
申请日：1987-10-02
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： HONJO HISASHI , MATSUSHITA TOSHIRO , KANAI NORIYUKI , NISHIHARA TAKASHI
IPC分类号： B22D11/128 , B22D11/20
摘要： PURPOSE:To detect depressing rate at the prescribed position and to control the depressing so as to be the prescribed depressing rate by arranging inner and outer bar unit at every line and arranging a cast slab depressing device supporting so as to possible to contact with/detach from the cast slab. CONSTITUTION:The depressing device 7 constituting of inner and outer bar blocks 8, 9 holds the cast slab 3 and the bar blocks 8, 9 are shifted together with the cast slab 3 to support so as to be possible to contact with/detach from the cast slab 3. By the outer bar depressing cylinder 44, the depressing force of the bar unit is detected with the pressure detector 51. The control device is composed of a positioning sensor 45, comparison computing element 46, correction operating unit 48, etc. The comparison computing element 46 calculates actual depressing rate based on the setting value, output of depressing dislocation after grounding from the comparison adder 57 and output from the correction computing element 48. In case of existing excess or shortage against the depressing rate, servo-valve 49 is worked and corrected to the prescribed depressing rate.

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