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1. 发明专利

JPS635837A COOLING METHOD FOR WIDTH ROLLING REDUCTION PRESSING DIE OF HOT SLAB 失效
公开(公告)号：JPS635837A
公开(公告)日：1988-01-11
申请号：JP14680786
申请日：1986-06-25
申请人： KAWASAKI STEEL CO , HITACHI LTD , HITACHI NUCLEAR ENG
发明人： NIKAIDO HIDEYUKI , MATSUYAMA KOICHI , NIHEI MITSUO , KOMORI ATSUSHI , SHIRAIWA HIROYUKI
IPC分类号： B21B15/00 , B21J1/02 , B21J1/06 , B21J13/02
摘要： PURPOSE:To prevent the deterioration in the quality of a hot slab and to extend the life of a pressing die by slowly cooling the work face of a pressing die while under width rolling reduction pressing and strongly cooling the work face of the pressing die while under standby until the succeeding hot slab coming to the pressing die. CONSTITUTION:A width rolling reduction pressing die 2 is arranged at the upper and lower two steps and in case of a hot slab 1 being subjected to the width rolling reduction with a pressing die 2a (the die 2 at descending position) a pressing die 2b is in non-rolling reduction position and the work faces of both dies 2a, 2b are slowly cooled by nozzles 6, 8. The die is strongly cooled by the nozzles 6, 8 while under standby until the succeeding slab comes after completion of the press of the hot slab 1. The press die 2 is then shifted to the upper part and the succeeding width rolling reduction is performed by the press die 2b. In this case the press dies 2a and 2b are slowly cooled at the work faces thereof by the upper die nozzle only. After this width rolling reduction pressing the press die 2 is shifted to the lower part and strongly cooled by each nozzle.

2. 发明专利

CA1296551C PRESS APPARATUS FOR REDUCING WIDTHS OF HOT SLABS AND SLAB WIDTHS REDUCING METHOD USING THE APPARATUS 未知
公开(公告)号：CA1296551C
公开(公告)日：1992-03-03
申请号：CA521205
申请日：1986-10-23
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： NIKAIDO HIDEYUKI , NAOI TAKAYUKI , KOMORI ATSUSHI , NIHEI MITSUO
IPC分类号： B21J1/04 , B21B1/02 , B21B1/22 , B21B15/00 , B21J5/00 , B21J7/18 , B21J9/02
摘要： 60-261,307 A press apparatus for reducing widths of hot slabs comprises a pair of anvils movable toward and away from each other in width directions of the hot slabs, width reduction heads to which the pair of anvils are attached, respectively, and eccentric presses for reciprocatively driving the width reduction heads through sliders, respectively. The apparatus further comprises width adjusting means incorporated in the eccentric presses, respectively, for changing distances between the width reduction heads and the sliders. Each of the anvils has a parallel portion in parallel to a feeding direction of the hot slabs and an inclined portion on an entry side in the feeding direction. With this arrangement, the reducing distance can be set according to the desired distance of reduction in width in continuous width reduction and the reduction in width can be continuously effected with the set reducing distance with high efficiency. The press apparatus preferably further comprises buckling preventing means such as rollers controlled by hydraulic cylinders for urging at least two locations of the slab along a central longitudinal line of the slab and on upstream and downstream sides of a line connecting junctions of the parallel portions and the inclined portions of the anvils, thereby preventing any buckling of the slab occurring in reduction in width of the slab.

3. 发明专利

BR8605216A 未知
公开(公告)号：BR8605216A
公开(公告)日：1987-07-28
申请号：BR8605216
申请日：1986-10-24
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： KOMORI ATSUSHI , NIHEI MITSUO
IPC分类号： B21J1/04 , B21B1/02 , B21B1/22 , B21B15/00 , B21J5/00 , B21J7/18 , B21J9/02 , B21D19/08
摘要： A press apparatus for reducing widths of hot slabs (7) comprises a pair of anvils (8) movable toward and away from each other in width directions of the hot slabs (7), width reduction heads (6) to which the pair of anvils (8) are attached, respectively, and eccentric presses (2, 3) for reciprocatively driving the width reduction heads (6) through sliders (4), respectively. The apparatus further comprises width adjusting means (5,11,12,13) incorporated in the eccentric presses (2,3), respectively, for changing distances between the width reduction heads (6) and the sliders (4). Each of the anvils (8) has a parallel portion in parallel to a feeding direction of the hot slabs (7) and an inclined portion on an entry side in the feeding direction. With this arrangement, the reducing distance can be set according to the desired distance of reduction in width in continuous width reduction and the reduction in width can be continuously effected with the set reducing distance with high efficiency. The press apparatus preferably further comprises buckling preventing means such as rollers controlled by hydraulic cylinders for urging at least two locations of the slab (7) along a central longitudinal line of the slab (7) and on upstream and downstream sides of a line connecting junctions of the parallel portions and the inclined portions of the anvils (8), thereby preventing any buckling of the slab (7) occurring in reduction in width of the slab (7).

4. 发明专利

AU6422086A APPARATUS FOR HOT SLAB WIDTH REDUCTION 未知
公开(公告)号：AU6422086A
公开(公告)日：1987-05-28
申请号：AU6422086
申请日：1986-10-20
申请人： HITACHI LTD , KAWASAKI STEEL CO
发明人： NIKAIDO HIDEYUKI , NAOI TAKAYUKI , KOMORI ATUSHI , NIHEI MITSUO
IPC分类号： B21J1/04 , B21B1/02 , B21B1/22 , B21B15/00 , B21J5/00 , B21J7/18 , B21J9/02
摘要： A press apparatus for reducing widths of hot slabs (7) comprises a pair of anvils (8) movable toward and away from each other in width directions of the hot slabs (7), width reduction heads (6) to which the pair of anvils (8) are attached, respectively, and eccentric presses (2, 3) for reciprocatively driving the width reduction heads (6) through sliders (4), respectively. The apparatus further comprises width adjusting means (5,11,12,13) incorporated in the eccentric presses (2,3), respectively, for changing distances between the width reduction heads (6) and the sliders (4). Each of the anvils (8) has a parallel portion in parallel to a feeding direction of the hot slabs (7) and an inclined portion on an entry side in the feeding direction. With this arrangement, the reducing distance can be set according to the desired distance of reduction in width in continuous width reduction and the reduction in width can be continuously effected with the set reducing distance with high efficiency. The press apparatus preferably further comprises buckling preventing means such as rollers controlled by hydraulic cylinders for urging at least two locations of the slab (7) along a central longitudinal line of the slab (7) and on upstream and downstream sides of a line connecting junctions of the parallel portions and the inclined portions of the anvils (8), thereby preventing any buckling of the slab (7) occurring in reduction in width of the slab (7).

5. 发明专利

JPS62142082A JUNCTION METHOD FOR HOT STEEL MATERIAL AND ITS DEVICE 失效
公开(公告)号：JPS62142082A
公开(公告)日：1987-06-25
申请号：JP27898985
申请日：1985-12-13
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： SHIRAIWA HIROYUKI , NIHEI MITSUO
IPC分类号： B21B15/00 , B23K11/02 , B23K11/08 , B23K13/04
摘要： PURPOSE:To join the junction face of both parts in a short time by raising the temp. with its heating, by bringing a conductor into contact with the opposing joining faces of hot steel materials and by pressing after passing high frequency current to the joining faces of both parts. CONSTITUTION:The hot steel materials 3a, 3b to be joined are set by fixing devices 12a-12d at adequate intervals. The electrodes 5a, 5b connected to a high frequency power source 4 are simultaneously pressed to the hot steel materials 3a, 3b of both parts by pressing devices 8a, 8b. A conductor 6 is also pressed to the hot steel materials 3a, 3b by a pressing device 9. The joining face of both the hot steel materials 3a, 3b is subjected to temp. up with being heated in a short time, when the high frequency power source 4 is actuated. In this case, the hot steel materials 3a, 3b are joined by acting forces P1, P2 on the joining faces by closely fitting both the hot steel materials by driving the fixing devices 12c, 12d with driving devices 13a, 13b, when a detector 10 detects the optimum temp. on the joining face of both the parts.

6. 发明专利

JPS60166101A METHOD AND DEVICE FOR REDUCING WIDTH OF SLAB 失效
公开(公告)号：JPS60166101A
公开(公告)日：1985-08-29
申请号：JP1996084
申请日：1984-02-08
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： NORIKURA TAKASHI , NIHEI MITSUO , YAMAMOTO KENJI , SHIRAIWA HIROYUKI
IPC分类号： B21B1/02 , B21B15/00
摘要： PURPOSE:To reduce a crop part at the rear end of a slab and to manufacture a steel sheet in high yield by forming the rear end of the slab to be reduced in width into a shape consisting of a straight part and a slant part before reducing the width of rear end by pressing its both side faces in the sheet width direction of rear end. CONSTITUTION:In reducing the width of a slab throughout its whole length, by transporting the slab, a blank material to be hot rolled, in its longitudinal direction, and pressing both side faces in the width direction of slab by a press tool 3, having a pressing face consisting of a face 3A parallel to the side face and a slant face 3B slanted with respect to the face 3A, by periodically vibrating the tool 3 in the sheet width direction of slab; the side faces of said rear end are previously pressed by another pressing face of tool 3 consisting of a slant face 3D slanted to the slab outlet side and a face 3C parallel to the side face of slab, before reducing the width of the rear end of slab. In this way, an ordinary width reduction is provided to the slab after forming its rear end into the shape consisting of a straight part and a slant part, to reduce the quantity of a crop part and a dog bone generating at the slab rear-end thereby improving the yield in steel sheet manufacturing.

7. 发明专利

JPH02241610A TRANSFER EQUIPMENT FOR HOT SLAB 失效
公开(公告)号：JPH02241610A
公开(公告)日：1990-09-26
申请号：JP6475989
申请日：1989-03-16
申请人： HITACHI LTD , KAWASAKI STEEL CO
发明人： KOMORI ATSUSHI , TAKAGI KIYOSHI , NIHEI MITSUO
IPC分类号： B21B39/08 , B21B15/00 , B21B39/00 , B21B39/14
摘要： PURPOSE:To prevent the camber or the bend of slabs by providing the guide frames of inlet and outlet pinch rolls in the window parts of the housings of hot edging press. CONSTITUTION:A pair of press dies 1 which is supported on the housings 2 is provided in the hot edging press. The transfer devices for hot slab provided the inlet and the outlet pinch rolls 3, 4 which consist of a pair of rolls are equipped before and behind the die 1. Then, the guide frames 5, 6 of the inlet and the outlet pinch rolls 3, 4 are provided in the window parts 7, 8 of the housing 2 of the hot edging press. The inlet and outlet posts of the guide frames are made removably. Thus, shorter slab can be transferred.

8. 发明专利

JPS63303605A PRESSING DEVICE FOR EDGING HOT SLAB 失效
公开(公告)号：JPS63303605A
公开(公告)日：1988-12-12
申请号：JP13817787
申请日：1987-06-03
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： UCHIDA HIDESHI , NIHEI MITSUO
IPC分类号： B21B15/00
摘要： PURPOSE:To reduce the number of uses of the same face and to sufficiently cool an anvil by sliding the anvil whose draft face is formed into a cross in the pass line side and turning the anvil by 90 deg. each. CONSTITUTION:Both sides upper and lower hydraulic cylinders 13 are actuated in the inlet side to retract an anvil slider 8 in an opposite side against the pass line side, to position a draft face 2c in an opening 19 of an anvil folder 11, and to position a draft face 2a in the pass line side to prepare a situation of edging anvil cooling headers 20, 21 cool draft faces 2c, 2d. After that, the both sides upper and lower hydraulic cylinders 13 are actuated into the outlet side to move an anvil 1 into the pass line side and to escape the draft face 2c from the opening 19. Then, both sides rotation drivers 15 are actuated to turn a rotating shaft 6 by 90 deg. to shift a draft face 2b from a lower position to the working side. After that, the cylinders 13 are actuated into the inlet side to fit the face 2d in the opening 19 and to cool the faces 2d, 2c with cooling water from the headers 20, 21, respectively.

9. 发明专利

JPS63242401A CONTROL METHOD FOR EDGING OF SPREADING MILL 失效
公开(公告)号：JPS63242401A
公开(公告)日：1988-10-07
申请号：JP7410487
申请日：1987-03-30
申请人： HITACHI LTD , KAWASAKI STEEL CO
发明人： NIHEI MITSUO , SHIRAIWA HIROYUKI , UEKI SHIGERU , NIKAIDO HIDEYUKI
IPC分类号： B21B1/02 , B21B15/00
摘要： PURPOSE:To surely keep the sheet width accuracy and to improve the product yield by installing correction means of deflection amounts of a spreading rolling mill and of spreading amounts after horizontal rolling and controlling a vibrating position adjuster based on a prediction value of deformation resistance of a rolled stock. CONSTITUTION:An inlet side stock temp. detector 9 and a stock carrying amount detector 10 are installed in the vicinity of a press tool 5 and an adjuster 8 for positions of a vibrator 4 is also installed. A temp. of a spreading stock 1 carried by an inlet side pinch roller 3 is detected by the detector 9, a deformation resistance value 23 proportioning to the detected temp. is calculated, and a rolling load 26 is found based on a drafting area 25 and the resistance value 23. An elongation of a spreading mill itself is calculated based on the spring constant of the mill itself and the adjuster 8 is controlled based on a predicted value of width reducing amount 30 after horizontal rolling. The outlet side sheet width accuracy is surely kept and the product quality and then the product yield are improved because the feedback controls of stock temps. and carrying amounts are performed.

10. 发明专利

JPS63242402A DEVICE FOR PREVENTING BUCKLING OF HOT SLAB IN EDGING PRESS 失效
公开(公告)号：JPS63242402A
公开(公告)日：1988-10-07
申请号：JP7410387
申请日：1987-03-30
申请人： HITACHI LTD , KAWASAKI STEEL CO
发明人： NIHEI MITSUO , KOMORI ATSUSHI , SHIRAIWA HIROYUKI , UEKI SHIGERU , NIKAIDO HIDEYUKI
IPC分类号： B21B15/00
摘要： PURPOSE:To improve the buckling preventive capability is improved by installing couples of upper and lower press means and adjusting a vertical position of the lower press means in accordance with a width and an edging amount of a hot rolled slab. CONSTITUTION:Buckling preventive press rollers 1a, 1b, 2a, 2b, 3a, 3b are installed in upper and lower positions of a hot rolled slab 4 to face each other. The lower rollers 1b, 2b, 3b are freely, turnably supported by a frame 10, respectively; an end of the frame 10 is supported by a fixing side bracket 12 through a pin 11. The other end of the frame 10 is supported by a worm jack 19; a vertical position of the lower rollers 1b, 2b, 3b is adjusted by actuating the jack 19 in accordance with a width and an edging amount of the slab 4. The buckling preventive capability is improved because gap generation between the lower press means and the bottom surface of the slab 4 and biting of the slab 4 are prevented.

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