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31. 发明专利

JPS5540030A SHAPE CONTROL ROLLING MILL 失效
公开(公告)号：JPS5540030A
公开(公告)日：1980-03-21
申请号：JP11163678
申请日：1978-09-13
申请人： MITSUBISHI HEAVY IND LTD
发明人： HINO HIROYUKI , OOSONO RIYUUICHI , ARAYA HIROSHI , TSUKAMOTO EIHIKO
IPC分类号： B21B13/14 , B21B31/18 , B21B37/00 , B21B37/28
摘要： PURPOSE:To enable the material to be rolled without causing edgs drop even when it becomes narrower in width than the work roll by axially movable disposing two pieces one set of backup rolls behind the work roll. CONSTITUTION:Each one set of backup rolls 8 which assume one set with two pieces is installed behind the work roll 2 to constitute 6 stage rolls. Two pieces of these backup rolls 8 are axially moved in mutually oposite directions to be so deviated and disposed that the end e1 of one roll aligns to the side end edge S1 at one side of the materlal 1 to be rolled and that the end e2 of the other roll aligns to the other side end edge S2, after which the work roll bearings are moved in the direction of expanding the roll gap and the side end edge S1 of the material 1 to be rolled is horizontally moved to the backup roll sides where the roll ends e1 array, whereby the end part of the work roll 2 is deformed in the dirction of offsettig edge drop deflection.

32. 发明专利

JPS5510366A ROLLING MILL 失效
公开(公告)号：JPS5510366A
公开(公告)日：1980-01-24
申请号：JP8383478
申请日：1978-07-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： HINO HIROYUKI , OOSONO RIYUUICHI , ARAYA HIROSHI , TSUKAMOTO EIHIKO , KAJIWARA TETSUO
IPC分类号： B21B13/02 , B21B13/14 , B21B27/02 , B21B27/03 , B21B31/18 , B21B37/00 , B21B37/28
摘要： PURPOSE:To improve the accuracy of thickness of the rolled material in the direction of breadth, by installing the intermediate rolls being divided into plural sections so as to be individually freely movable in the direction of axis, between the backup roll and respective upper and lower work rolls. CONSTITUTION:For instance, when the breadth of the rolled material 12 is comparable to the length of rolls of the work rolls 13a, 13b, the outermost intermediate rolls 21a, 21b, 21a', 21b', are respectively moved in the direction of axis, so as to make the distance between the left end of the outermost intermediate rolls 21a, 21b, and the right end of the outermost intermediate rolls 21a', 21b', to be corresponding to the breadth of the material 12. When the breadth of the material 12 is approximately equal to the sum of length of rolls of the intermediate rolls, the outermost rolls are all shifted so as to contact with the middle rolls 20a, 20b, and then the rolling work is proceeded. When the breadth of the material 12 is shorter than the sum of length of rolls of the intermediate rolls, the middle rolls 20a, 20b, are combined with either one of the outermost rolls, or only the middle rolls 20a, 20b, are assigned to the rolling work.

33. 发明专利

JPS54160544A CONTROL OF ROLL ECCENTRICITY OF ROLLING MILL 失效
公开(公告)号：JPS54160544A
公开(公告)日：1979-12-19
申请号：JP13537477
申请日：1977-11-11
申请人： MITSUBISHI HEAVY IND LTD , SUMITOMO METAL IND
发明人： MATSUNAGA YUUZOU , HAYAMA YASUNOBU , HASHIMOTO KAZUYOSHI , ARAYA HIROSHI , MATSUDA YUKIO , HAMA KAZUO , HASHIKADO MASAO
IPC分类号： B21B37/18 , B21B37/66
摘要： PURPOSE:To permit stable, effective control of roll eccentricity by multiplying a roll eccentricity control output signal by a function determinable by rolling speed further to make proper control signal. CONSTITUTION:A roll eccentricity compensation amount prepared at the digital computer 17 is put in the operator 12 through the D/A converter 22 and the function multiplier 27 in which a correcting calculation is made from the signal 37 given from the operating desk 24 to the signal from the D/A converter and the speed signal 36 given from the counter 20 to prepare proper compensation amount for roll eccentricity. The function multiplier 27 thus incorporatred to make a calculation with the plate thickness designated by the operating desk 24 and the rolling speed signal 36 given from the counter 20 enables proper compensation to be performed.

34. 发明专利

JPH10128416A LEVELING ZERO ADJUSTMENT METHOD OF HOT ROLLING FINISHING MILL 失效
公开(公告)号：JPH10128416A
公开(公告)日：1998-05-19
申请号：JP28655996
申请日：1996-10-29
申请人： KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： SUMINAGA TOMOKI , SHIMIZU MASUHITO , TAKEGUCHI TATSU , ARAYA HIROSHI
IPC分类号： B21B35/00 , B21B37/00
摘要： PROBLEM TO BE SOLVED: To improve the precision of a roll reduction position zero adjustment and a leveling zero adjustment by stopping the rotation of a work roll to reduce a thrusting force and reducing the dispersion of the difference load of the leveling zero adjustment. SOLUTION: The leveling zero adjustment is executed in the case of recombining the work roll. In this case, in order to prevent the thermal deformation of the work roll, the work roll is stopped to rotate after taking such an action as spraying a cooling water or the like. By this way, the thrusting force is reduced and the dispersion of the difference load of the leveling zero adjustment is reduced. That is, the dispersion of the leveling zero adjustment value at the time of the zero adjustment is small and conforms to the leveling zero adjustment value at the time of rolling by adjusting an objective difference load. By this way, this method is not influenced by the variation of the difference load caused by the thrusting force due to the cross angle between the rolls.

35. 发明专利

JPH05337526A 失效
公开(公告)号：JPH05337526A
公开(公告)日：1993-12-21
申请号：JP17599392
申请日：1992-06-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： ARAYA HIROSHI , KURODA AKIO , MITO YOSHIAKI , HAYASHI KANJI
IPC分类号： B21B13/14 , B21B31/16
摘要： PURPOSE:To accurately set the position of a roll chock and to simplify the structure of a work roll cross mill. CONSTITUTION:Each of upper and lower cross heads is attracted to a rod 4 by each pull back cylinder 11 with a rod part 12 fixed to the cross head 3. One side rod 4 of either of the inlet side or the outlet side of a rolled stock 50 is pushed out and the other side rod 4 is pulled by each of upper and lower screw jacks 5. One side cross head is pushed by this one side rod 4, the other side cross head is pulled by a pull back cylinder 11 to ward the other side rod 4, the upper and lower cross heads are moved in the opposite direction to each other, and while pads 7 are tilted and slid on both sides of the respective work roll chocks, the upper and lower work roll chocks and the upper and lower work rolls are rotated around cross point O by a prescribed cross angle theta in the direction to be the upper side opposite the lower side, respectively.

36. 发明专利

JPH0521646B2 失效
公开(公告)号：JPH0521646B2
公开(公告)日：1993-03-25
申请号：JP12709985
申请日：1985-06-13
申请人： MITSUBISHI HEAVY IND LTD
发明人： ARAYA HIROSHI
IPC分类号： B21B1/26 , B21B15/00 , B23K20/00 , B23K20/04

37. 发明专利

JPH0227041B2 失效
公开(公告)号：JPH0227041B2
公开(公告)日：1990-06-14
申请号：JP5524483
申请日：1983-04-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： HINO HIROYUKI , MITO YOSHIAKI , ARAYA HIROSHI
IPC分类号： B21B13/02 , B21B13/14 , B21B31/32

38. 发明专利

JPH01306004A METHOD FOR ROLLING CONTINUOUSLY CAST THIN SLAB 失效
公开(公告)号：JPH01306004A
公开(公告)日：1989-12-11
申请号：JP13279288
申请日：1988-06-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： MORIMOTO KAZUO , MITO YOSHIAKI , ARAYA HIROSHI
IPC分类号： B21B1/00 , B21B1/46
摘要： PURPOSE:To reduce the manufacturing cost of thin steel sheets by rolling a continuously cast thin slab of a specific thickness by a hot rolling mill line consisting of three or less stands continuously without cutting. CONSTITUTION:A heating furnace 2 and a hot rolling mill line 3 consisting of three of less stands are installed to follow a continuous casting machine 1; a cooling zone 4, shear 6, and coiler 5 are also installed. A thin slab 7 continuously cast by the machine 1 is hot rolled by the mill line 3 to be a thin steel sheet 8 and is wound by the coiler 5. Temps. of the slab 7 is not cooled to a temp. lower than the Ar3 point even the slab 7 is rolled as cast speed because the rolling mill line 3 has three or less stands. Since the slab 7 moves as cast speed, lengths of the furnace 2 and zone 4 are reduced, so that the total line length is also reduced. Hence, the manufacturing cost of thin steel sheets is reduced because thermal energy is saved and the equipment cost is reduced.

39. 发明专利

JPH01293908A ROLLING METHOD 失效
公开(公告)号：JPH01293908A
公开(公告)日：1989-11-27
申请号：JP12205288
申请日：1988-05-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： ARAYA HIROSHI , MORIMOTO KAZUO , MITO YOSHIAKI
IPC分类号： B21B1/26
摘要： PURPOSE:To reduce a rolling load at the most forward stand by rolling a stock by acting a backward tension to a rolling mill. CONSTITUTION:Pinch rolls 5 installed in the inlet side of the most forward stand has a function pushing a rolled stock sheet 1 from a position at which the sheet 1 is bitten by a gap between rolling rolls 2 to a position at which the sheet 1 passes through the rolls 2. After a stable rolling condition is achieved, the rolls 5 reversely pull the sheet 1 to impart a tension to the sheet 1. Hence, a rolling load in rolling is reduced by the backward tension.

40. 发明专利

JPS63252602A ROLLING METHOD AND CLUSTER MULTIROLL MILL 失效
公开(公告)号：JPS63252602A
公开(公告)日：1988-10-19
申请号：JP8567087
申请日：1987-04-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： ARAYA HIROSHI , SUKENOBU MITSUAKI
IPC分类号： B21B1/22 , B21B13/14
摘要： PURPOSE:To disperse wear of a roll in the axial direction and to improve the quality of a rolled stock by concurrently shifting work rolls and intermediate rolls in the axial direction before and during rolling or in either time of before rolling or during rolling. CONSTITUTION:For rolling of a strip 3, actuation and rotation of intermediate rolls 4 and a lower work roll 20 cause following rotation of an upper work roll 1, an upper segmented reinforcing rolls 10a, 10b, and a lower reinforcing roll 26. Roll shifting mechanisms 40, 42 alternately, reciprocately shift outer chocks 103a, 103b and lower work roll chocks 104a, 104b in the roll axial direction by a prescribed amplitude. Hence, the strip 3 is passed and rolled with the upper work roll 1 and the intermediate roll 4 as well as the lower work roll 20 are reciprocatively shifted to each other and symmetrically in upper and lower positions.

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