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61. 发明专利

JPH0357554A POURING FURNACE 失效
公开(公告)号：JPH0357554A
公开(公告)日：1991-03-12
申请号：JP19064689
申请日：1989-07-25
申请人： KAWASAKI STEEL CO
发明人： YAMANE HIROSHI , OZAWA MICHIHARU , MIYAKE KANE , YUKIMOTO MASAO , KUDO TOSHIO
IPC分类号： B22D45/00 , F27D3/14
摘要： PURPOSE:To prevent a molten metal from leaking and a pouring gate from being closed by forming the pouring gate on a furnace wall for constituting the bottom face of a furnace body in a pouring attitude after tilting of the furnace body, and providing a sliding nozzle for opening and closing an opening part on this pouring gate. CONSTITUTION:Before tilting of a furnace body 1, a pouring port is closed in advance by a sliding nozzle 7, and the pouring port surrounded by a sand stopper 11 is filled with sand 10 from a sand feeder 9. Subsequently, by a hydraulic cylinder 6A, the furnace body 1 is tilted, a furnace side wall on which the pouring part is provided becomes horizontal and tilting is ended in a position which becomes the bottom face of the furnace, and the furnace body 1 is fixed. Subsequently, the sliding nozzle 7 is moved and by opening the pouring port, the sand 10 is discharged, and pouring is started. When pouring is ended, the furnace body 1 is returned to an upright attitude again, and offered for charging of a molten metal in the next time.

62. 发明专利

JPH02165850A METHOD FOR CONTROLLING MEANDERING OF RAPIDLY COOLED METAL STRIP 失效
公开(公告)号：JPH02165850A
公开(公告)日：1990-06-26
申请号：JP31515388
申请日：1988-12-15
申请人： KAWASAKI STEEL CO
发明人： YUKIMOTO MASAO , MIYAKE KANE
IPC分类号： B22D11/06 , B22D11/20
摘要： PURPOSE:To effectively correct meandering of a metal strip during high speed conveying by detecting the meandering amt, between pinch rolls conveying the rapidly cooled metal strip and steering roll and tilt-controlling the steering roll in accordance with this detected value. CONSTITUTION:Molten metal is forcedly and rapidly cooled and solidified with cooling roll rotating at high speed and the obtd. rapidly cooled metal strip 4 is conveyed through the pinch rolls 14 and the steering roll 11 as a deflector roll and coiled with a coiling roll 9. In the above conveying method, an optical meandering detecting sensor 15 is arranged at between the pinch rolls 14 and the steering roll 11, desirably near the intermediate point to detect the meandering rate of the above strip 4 during conveying. In accordance with this detected meandering rate, feed-forward control for tilting the steering roll 11 is executed through a hydraulic cylinder 13, etc. Then, in the above control, it is desirable to remain suitable offset rate to the proportional movement of the steering roll 11 by setting proportional gain in accordance with the above operational condition.

63. 发明专利

JPH0246957A METHOD FOR CARRYING RAPIDLY COOLED METAL STRIP 失效
公开(公告)号：JPH0246957A
公开(公告)日：1990-02-16
申请号：JP19351688
申请日：1988-08-04
申请人： KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： YUKIMOTO MASAO , SHIBUYA KIYOSHI , MORITO NOBUYUKI , FUKUYAMA GORO
IPC分类号： B65H20/02 , B22D11/06
摘要： PURPOSE:To enable stable carrying by passing a metal strip rapidly cooling and solidifying molten metal on the surface of cooling roll to pinch rolls composing of one pair of brushing roll and solid roll and specifying the speed of the pinch rolls at the time of carrying the metal strip to the coiling reel. CONSTITUTION:The rapid cooled and solidified metal strip on the cooling roll 1 surface is passed to the pinch rolls 7 composing of one pair of the brushing roll 7b and the solid roll 7a. Variety of tension developed caused by shifting of the pinch rolls 7 is absorbed with slip in the pinch rolls 7 and meandering of the strip is prevented with the centering function of the brushing roll having helical gear shape. The peripheral speed V1 of the cooling roll 1, the peripheral speed V2 of the pinch roll 7 and the shifting speed V3 of the pinch roll 7 are made to widen the permissible range of the adjusting accuracy of the speed by satisfying V2+V3>V1 and V1>=V3. By this method, in the carrying process to the reel 12 winding the rapid cooled strip, by correcting the line and giving the suitable tension, the stable carrying is executed.

64. 发明专利

JPH01289563A REMOVING METHOD FOR BLOCKING BODY IN PRESSURIZING TYPE MOLTEN METAL POURING FURNACE 失效
公开(公告)号：JPH01289563A
公开(公告)日：1989-11-21
申请号：JP11712288
申请日：1988-05-16
申请人： KAWASAKI STEEL CO
发明人： KOGIKU FUMIO , OZAWA MICHIHARU , YUKIMOTO MASAO , YAMANE HIROSHI
IPC分类号： B22D39/06 , B22D37/00
摘要： PURPOSE:To quicken a blocking body removing work and to smooth a molten metal pouring operation by making the molten metal level less than a blocking part and removing the blocking body by scarfing it in that state. CONSTITUTION:A blocking part 5 is formed by a slag, etc., on the inner wall of the siphon 3 of a pressurizing type molten metal pouring furnace and in case of the pouring operation becoming difficult the molten metal storage chamber 1 inside is made in a negative pressure by actuating a gaseous body suction device to reduce the molten metal level of the siphon 3. Or it is reduced by tilting the pouring furnace. The scarfing removal of the blocking part 5 is executed with holding the molten metal level of the siphon 3 inside constant by actuating a negative pressure power adjusting device 7. As the blocking part 5 is removed by exposing it on the molten metal level, the removing work is quickened and the pouring operation of the pressurizing type pouring furnace is smoothed.

65. 发明专利

JPH01249243A MANUFACTURING DEVICE FOR RAPIDLY COOLING THIN STRIP 失效
公开(公告)号：JPH01249243A
公开(公告)日：1989-10-04
申请号：JP7454788
申请日：1988-03-30
申请人： KAWASAKI STEEL CO
发明人： YAMANE HIROSHI , OZAWA MICHIHARU , YUKIMOTO MASAO , KOGIKU FUMIO
IPC分类号： B22D11/06
摘要： PURPOSE:To improve the product quality and to extend the life of an end side wall longer by providing an Ni plating layer, Ni alloy plating layer and Cr plating layer in order in specified thickness on the inner face of a water cooling type end side wall. CONSTITUTION:The Ni plating layer 3 in 0.1-0.6mm thickness is formed as a 1st layer on the inner face of the end side wall 2 composed of a Cu or Cu alloy and the Ni alloy plating layer 4 in 0.1-0.2mm thickness is provided as a 2nd layer on the upper face thereof. The Cr plating layer 5 in 0.02-0.05mm thickness is formed as a 3rd layer on the upper face of the plating layer 4. In this case, the adhesion of the 1st layer 3 is improved because the Ni plating layer 3 of the 1st layer has less difference in the thermal expansion coefft. with the end side wall 2. Due to the Cr plating excellent in wear resistance, heat resistance and hardness being used on the 3rd layer 5 the damage of the end side wall 2 is reduced and the product quality is improved. The end side wall 2 is made in a longer life because the adhesion of the plating layers 3, 4, 5 is improved by the interposition of the 2nd layer 4.

66. 发明专利

JPH01245946A APPARATUS FOR PRODUCING RAPID COOLED METAL STRIP 失效
公开(公告)号：JPH01245946A
公开(公告)日：1989-10-02
申请号：JP7193688
申请日：1988-03-28
申请人： KAWASAKI STEEL CO
发明人： YAMANE HIROSHI , OZAWA MICHIHARU , YUKIMOTO MASAO , KOGIKU FUMIO
IPC分类号： B22D11/06
摘要： PURPOSE:To improve the quality of a product by stripping solidified material developed on a strip with grooves having sharp edges formed along outer circumferential edge of a cooling roll at inner face side of end side wall abutting on cooling rolls while sliding. CONSTITUTION:At the inner face side of the end side wall 2 abutting on the cooling rolls 1 while sliding, the end side grooves 6 along the outer circumferential edge 1a of the cooling roll from the upper end face 2a are arranged. The end side grooves 6 are slopedly opened as straight line toward lower end direction of the cooling rolls, and stripping part 8 of the solidified material is formed at this position. In the stripping part 8, knife-edge part is formed to flowing surface of the strip 9 and constituted so as to position the upper end of the stripping part 8 at upper part from the lower end of the end side wall 2. By this method, penetrating solidified material 4 developing at end part of the strip is effectively stripped, and the quality can be improved.

67. 发明专利

JPH01138039A MANUFACTURE OF RAPIDLY COOLED STRIP 失效
公开(公告)号：JPH01138039A
公开(公告)日：1989-05-30
申请号：JP29618887
申请日：1987-11-26
申请人： KAWASAKI STEEL CO
发明人： YUKIMOTO MASAO , OZAWA MICHIHARU , SUGA TAKAHIRO , KAKIO YASUHIRO , IMAI TAKUO
IPC分类号： B22D11/06
摘要： PURPOSE:To stabilize the manufacture of rapid cooled strip by arranging inner part water cooling type metal flange at one end of inner part water cooling type roll and the cooling flanges at mutually the other ends of the cooling rolls to form casting space between one pair of the cooling rolls. CONSTITUTION:Each of the metal flanges 5a, 5b having integrated structure with the cooling rolls 1a, 1b is arranged and the inner parts thereof is made to water cooling type. Each of the flanges 5a, 5b is pushed to the other roll barrel end part with a pushing cylinder 8 setting at shaft end of the cooling roll, to form the casting space together with the cooling rolls 1a, 1b. When the molten metal is rapidly cooled and solidified between the cooling rolls, as the surface temps. of the flanges 5a, 5b are kept to

68. 发明专利

JPS6435725A PRODUCTION OF ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISK 失效
公开(公告)号：JPS6435725A
公开(公告)日：1989-02-06
申请号：JP19134887
申请日：1987-07-30
申请人： FURUKAWA ALUMINIUM , KAWASAKI STEEL CO
发明人： OHARA KINYA , ASAMI SHIGENORI , SUGA TAKAHIRO , YUKIMOTO MASAO
IPC分类号： G11B5/82 , G11B5/73 , G11B5/84
摘要： PURPOSE:To obtain a high-strength substrate without spoiling the smoothness of the surface of the disk substrate by supplying the melt of an aluminum alloy having specific components between the outside peripheral faces of a pair of cooled casting molds facing each other, thereby obtaining an ingot having a specific thickness continuously. CONSTITUTION:The melt of the aluminum alloy which contains 6-15wt.% Mg (hereafter abbreviated as %), is confined to

69. 发明专利

JPS62156051A PRODUCTION OF TWIN ROLL TYPE RAPID COOLED THIN HOOP METAL 失效
公开(公告)号：JPS62156051A
公开(公告)日：1987-07-11
申请号：JP29368885
申请日：1985-12-27
申请人： KAWASAKI STEEL CO
发明人： YUKIMOTO MASAO , MIYAKE KANE , SHIBUYA KIYOSHI
IPC分类号： B22D11/06
摘要： PURPOSE:To uniformize thin hoop width by settling a rolling reduction force standards at a driving side and an operating side for free cooling rolls and correcting the reduction forces based on difference with the actual reduction forces and detecting values of the roll gap. CONSTITUTION:Corresponding to driving and operating chocks 8A, 8B for the free cooling rolls 2, oil pressure sensors 22A, 22B are arranged respectively and also sensors 14A, 14B, which detect the roll gaps l1, l2 for the driving side and operating side, are arranged. A standard rolling reduction force settler 17 settles the standard reduction force P0 and outputs the standard reduction forces P01, P02 for the driving side and the operating side respectively. Based on the deviations between actual reduction forces P1S, P2S measured by the sensors 22A, 22B, and the standard reduction forces and the detected values of roll gaps l1, l2, an arithmetic device 20A, 20B calculate reduction forces to correct, to execute rolling reduction control. As a solidification at width direction is uniformized, width of the thin hoop metal is uniformized.

70. 发明专利

JPS61159248A PREVENTION OF WINDING OF QUICKLY COOLED THIN STRIP ONTO ROLL 失效
公开(公告)号：JPS61159248A
公开(公告)日：1986-07-18
申请号：JP27977684
申请日：1984-12-28
申请人： KAWASAKI STEEL CO
发明人： MIYAKE KANE , YUKIMOTO MASAO
IPC分类号： B22D11/06 , B22D11/22
摘要： PURPOSE:To prevent the winding of a quickly cooled thin strip around cooling rolls by monitoring the angle at which the thin strip peels off the quick cooling rolls at all times and controlling the flow rate of the roll cooling water to be introduced into the cooling rolls according to the change of said angle. CONSTITUTION:A molten steel 2 is poured into the spacing between the cooling rolls 4a and 4b and the angle theta at which the quickly cooled thin strip 6 peels off the rolls 4a, 4b is monitored at all times by a monitor 9 of an industrial television camera 8. The flow rate of the cooling water to be fed to the roll 4a or 4b is controlled according to the preset calibration curve to change the angle theta when the angle theta fluctuates. The winding of the thin strip around the cooling rolls is thus prevented.

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