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11. 发明专利

JPH08224612A SUPPLY DEVICE FOR ROLLING MILL LUBRICANT 失效
公开(公告)号：JPH08224612A
公开(公告)日：1996-09-03
申请号：JP3319295
申请日：1995-02-22
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA KOJI , MATSUMOTO MASAJI
IPC分类号： B21B27/10 , B21B45/02
摘要： PURPOSE: To provide a supply device for the rolling mill lubricant of a rolling mill, by which stable oily rolling can be performed. CONSTITUTION: Rolling mill lubricant to be supplied through a rolling mill lubricant supply pipe path 18 by a precise gear pump 50 and high pressure hot water to be supplied from a high pressure hot water supply pipe path 54, are mixed by a mixer 14. When jetting this mixed fluid to a rolling roll from spray nozzles N1 to N10 through mixed fluid supply branch pipe paths 22A to 22C on which mixed fluid valves, shut-off 24A to 24C are mounted, a low pressure hot water supply main pipe path 58 branched from the high pressure hot water supply pipe path 54, is connected to low pressure hot water supply branch pipe paths 62A to 62C through a choke 60. The supply device is constituted by connecting these low pressure hot water supply branch pipe paths 62A to 62C to the mixed fluid supply branch pipe paths 22A to 22C on the downstream side of the mixed fluid valves, shut-off 24A to 24C through low pressure hot water check valves 64A to 64C. A mechanism by which low pressure hot water with prescribed pressure is supplied to a spray nozzle header group when the rolling mill lubricant is not jetted, is set. Therefore, even when the rolling mill lubricant leaks, it does not attach to a rolling roll, and the clogging of the spray nozzle can be prevented.

12. 发明专利

JPH08215719A DEWATERING DEVICE FOR ROLL OF ROLLING MILL 失效
公开(公告)号：JPH08215719A
公开(公告)日：1996-08-27
申请号：JP2252295
申请日：1995-02-10
申请人： KAWASAKI STEEL CO , TOYONAGA SHOICHI , MUTSUBISHI GOMME KK
发明人： KAWASHIMA KOJI , MATSUMOTO MASAJI , TOYONAGA SHOICHI , KITAWAKI MICHIO
IPC分类号： B21B27/10 , B21B45/02
摘要： PURPOSE: To provide a dewatering device for the roll of a rolling mill, by which a uniform sealing effect in the roll axial direction is attained. CONSTITUTION: In a dewatering device performing dewatering by making the tip part of an elastic sealant 32 abut on the outer peripheral surface of a work roll by a bag body 31 along with the roll axial direction, the tip part is formed in an acute angle, and the acute angle part is abutted on the outer peripheral surface of the roll. At the same time, the acute angle part is abutted so that an angle contained by the contact surface of the outer periphery of the roll on the upstream side in the direction of rotation of the work roll in the abutting part and the dewatering surface of the tip part of the elastic sealant 32, exceeds 90 deg.. Thus, almost uniform dewatering in the whole in the roll axial direction is made possible.

13. 发明专利

JPH08215717A SUPPLY DEVICE FOR ROLLING MILL LUBRICANT OF ROLLING MILL 失效
公开(公告)号：JPH08215717A
公开(公告)日：1996-08-27
申请号：JP2251995
申请日：1995-02-10
申请人： KAWASAKI STEEL CO , TOYONAGA SHOICHI
发明人： KAWASHIMA KOJI , MATSUMOTO MASAJI , TOYONAGA SHOICHI
IPC分类号： B21B27/10 , B01J4/00 , B21B45/02
摘要： PURPOSE: To prevent defective bite and slip by providing valve, shut-off and choke in a hot water circuit injecting rolling mill lubricant, and when the rolling mill lubricant is not spouted out, a hot water pressure is decreased, and preventing splashed and attachment of the rolling mill lubricant leaked on the inside to a rolling roll. CONSTITUTION: When stopping the injection of rolling mill lubricant, simultaneously with changing over a three-way valve 20 on the return side of the rolling mill lubricant, the supply of the rolling mill lubricant and hot water to a mixer 14 is stopped by closing a hot water main valve 29, shut-off and oil mixture valves, shut-off 24A to C, and by opening hot water shut-off valves, 32A to C. On the ther hand, the clogging of a nozzle is prevented by supplying the hot water to branch pipes 22A to C of oil mixture and nozzles N1 to N10 on the downstream side of the oil mixture shut-off valves, 24A to C through a bypass pipe 30 from the upstream side of the hot water main valve, shut-off 29. At this time, since the flow rate of the hot water is limited by chokes 51A to C installed on branch pipes 30A to C of a bypass, and supply pressures to the nozzles are decreased, the arrival of the injected hot water to a rolling roll can be avoided. In addition, the delay of the injection stop of the rolling mill lubricant can be made within one second by forming these valves, chokes, and pipe paths as an integrated block.

14. 发明专利

JPH0716621A METHOD FOR CLEANING ROLLING OIL SUPPLYING SYSTEM 失效
公开(公告)号：JPH0716621A
公开(公告)日：1995-01-20
申请号：JP16090693
申请日：1993-06-30
申请人： KAWASAKI STEEL CO
发明人： TSUJIMOTO MASAMI , AKIZUKI TOSHIO , KANETANI TETSUO , MATSUMOTO MASAJI , KANEKO TOSHIHIRO
IPC分类号： B21B27/10 , B21B45/02
摘要： PURPOSE:To prevent a rolling oil injecting nozzle from being clogged and to increase a rolling time due to reduction of repairing by supplying hot water to the inner part of the injecting nozzle just before the injection of the rolling oil starts or just after the injection stops. CONSTITUTION:Rolling oil and warm water are set respectively by an oil tank 1, a warm water tank 2 to prescribed concentration and temperature, fed forcibly by an oil pump 3 and a warm water pump 4, mixed compulsorily by a mixer 7 into a temporary emulsion state and injected from the injecting nozzle 9 to a prescribed part through a header 8. The rolling oil, the warm water are fed and stopped by an oil selector 5, a warm water selector 6. When the rolling oil begins injection, the warm water selector 6 is opened and the oil selector 5 is opened and transferred to emulsion as the warm water is injected. When the injection of the rolling oil is stopped, the oil selector 5 is closed and after injection of the warm water only is held continuously for a prescribed time, then, the warm water selector 6 is closed to stop the supply of the warm water.

15. 发明专利

JPH079021A METHOD FOR SUPPLYING ROLLING OIL 失效
公开(公告)号：JPH079021A
公开(公告)日：1995-01-13
申请号：JP15085993
申请日：1993-06-22
申请人： KAWASAKI STEEL CO
发明人： OKAMOTO KEN , MATSUMOTO MASAJI , MURAMOTO YU , SAITO TERUHIRO , YAMADA YASUHIRO
IPC分类号： B21B27/10 , B21B45/02
摘要： PURPOSE:To remarkably improve the attachment efficiency of rolling oil when applying rolling oil by injecting it on a strip from a nozzle as an emulsion, and to remarkably improve a plate-out property. CONSTITUTION:When rolling a strip by a rolling mill, in a method supplying rolling oil, in which an emulsion is injected on a strip surface from a nozzle after mixing rolling oil with water to produce emulsion, flocculating agent is added to palm oil (rolling oil) to increase the grain diameter of the rolling oil in the emulsion, and a pressure required for injecting the emulsion from the nozzle, is set between >=5kg/cm and .

16. 发明专利

JPH06190428A DEVICE FOR SUPPLYING ROLLING OIL 失效
公开(公告)号：JPH06190428A
公开(公告)日：1994-07-12
申请号：JP34604892
申请日：1992-12-25
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA KOJI , MATSUMOTO MASAJI
IPC分类号： B01F3/08 , B01F5/04 , B01J4/00 , B21B45/02
摘要： PURPOSE:To apply rolling oil on the surface of a strip in rolling with the uniform sticking amount in the whole width direction. CONSTITUTION:With this device for supplying rolling oil, a coolant in the emulsion state is prepared by mixing rolling oil to be fed from a rolling oil tank 1 and hot water which is fed from a hot water tank 5 in a mixing tank 9 and the rolling oil is applied on the surface of the strip by jetting the coolant from a header device 12 on the surface of the strip S in rolling with rolling equipment 13. And an injector 18 is interposed between the mixing tank 9 and the header device 12 and a portion of the coolant which is supplied to the header device 12 with the injector 18 is circulated in the direction of the arrow A through the outlet-side pipe 19.

17. 发明专利

JPH0584508A SPRAY HEADER AND DEVICE FOR SUPPLYING ROLLING OIL USING THE SAME 失效
公开(公告)号：JPH0584508A
公开(公告)日：1993-04-06
申请号：JP27316391
申请日：1991-09-25
申请人： KAWASAKI STEEL CO
发明人： MATSUMOTO MASAJI , KAWASHIMA KOJI , OKAMOTO KEN , SAITO TERUHIRO , KANEKO TOSHIHIRO , YAMADA YASUHIRO
IPC分类号： B05B7/04 , B21B45/02
摘要： PURPOSE:To prevent a variation in concentration of emulsion which is supplied from the nozzles of spray headers to a strip and rolling rolls and to attain high responsiveness. CONSTITUTION:At the time of supplying rolling oil and water which are made into an emulsion state by mixing them from the nozzles 3, 3' of the spray headers 2, 2' to the strip 1, water and rolling oil are directly supplied into the spray headers 2, 2', emulsionized by mixing them in the spray headers and also jetted from the nozzles to the strip and rolling rolls while being circulated in the spray headers.

18. 发明专利

JPH03268812A METHOD AND APPARATUS FOR SUPPLYING ROLLING OIL 失效
公开(公告)号：JPH03268812A
公开(公告)日：1991-11-29
申请号：JP6476990
申请日：1990-03-15
申请人： KAWASAKI STEEL CO
发明人： MATSUMOTO MASAJI , KAWASHIMA KOJI
IPC分类号： B21B1/22 , B21B27/10 , B21B45/02
摘要： PURPOSE:To stabilize rolling operation and to improve rolling speed by injecting demulsifier into emulsion just before an injection nozzle in a supply passage to supply emulsion when rolling oil is spread on a stock to be rolled. CONSTITUTION:Since emulsion in a stabilized state is supplied from an emulsion storing tank 3 to an agitator just before the nozzle through an emulsion supply passage, it arrives at the agitator without separating oil content on the way of this supply. Demulsifier to promote separation of oil content in the above-said emulsion is supplied from a demulsifier tank 9 to the agitator. A nozzle header 8 is connected with a mixer part 7 and the nozzle header 8 is provided with plural nozzles 8a. The injection holes are put in a row respectively toward the surface of the stock 12 to be rolled in the width direction. Cation surface active agent, anion surface active agent, inorganic coagulant are used for this demulsifier. In this way, since oil content of fixed concentration can be spread stably and efficiently on the stock to be rolled, rolling operation can be stabilized.

19. 发明专利

JPH02299705A METHOD FOR ROLLING STAINLESS STEEL STRIP 失效
公开(公告)号：JPH02299705A
公开(公告)日：1990-12-12
申请号：JP12117389
申请日：1989-05-15
申请人： KAWASAKI STEEL CO
发明人： MATSUMOTO MASAJI , KOMATSU TOMIO , FUKUHARA AKIHIKO
IPC分类号： B21B1/22 , B21B45/02
摘要： PURPOSE:To enable a high speed rolling of stainless steel strip high in surface glossiness by providing >=1 set of wringer rolls between stands composing tandem mills. CONSTITUTION:At the outlet of a rolling roll 1 of a stand I the stock solution of rolling oil is injected by a strip coolant header 31 on the surface of the steel strip to cool the stainless steel strip S. After the original liquid on the surface of the steel strip is squeezed by a 1st wringer roll 41, the stock solution of the rolling oil is injected by spray headers 5 provided among each wringer roll 41 - 44 and wear particle is removed by oil reservoirs formed at the inlets of the respective wringer rolls 41 - 44. The steel strip is cleaned by each wringer roll are rolled by a stand II. Further, concerning the stock solution of the rolling oil supplied to the inlet sides of the wringer rolls, of the sur face area of the stainless steel strip passing the stand I can give enough mirror face glossiness.

20. 发明专利

JPH01207110A METHOD FOR REMOVING MAGNETIC SUBSTANCE DEPOSITED ON MEDIA OF HIGH-GRADIENT MAGNETIC SEPARATOR 失效
公开(公告)号：JPH01207110A
公开(公告)日：1989-08-21
申请号：JP3100688
申请日：1988-02-15
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA KOJI , MATSUMOTO MASAJI
IPC分类号： B01D35/06 , B03C1/032
摘要： PURPOSE:To remove the magnetic substance deposited on the media used in a high-gradient magnetic separator and to remarkably reduce the cleaning cost by vibrating the media. CONSTITUTION:The media 3 used in the high-gradient magnetic separator 1 are vibrated by vibrators 10 and 10' to remove the magnetic substance deposited on the media 3. As a result, the period of time from backwashing to backwashing can be extended, the consumption of steam, hot water, etc., can be significantly reduced, the period of time between the overhaulings can be extended, and the cleaning cost is remarkably decreased.

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