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1. 发明专利

JP2000045057A DEVICE FOR PREVENTING WINDING-UP OF BOTTOM DROSS IN CONTINUOUS HOT DIP GALVANIZING TANK 失效
公开(公告)号：JP2000045057A
公开(公告)日：2000-02-15
申请号：JP21279098
申请日：1998-07-28
申请人： KAWASAKI STEEL CO
发明人： SUZUKI HIDEKAZU , TANOGUCHI ICHIRO , IWATANI AKIYUKI
IPC分类号： C23C2/00 , C23C2/06 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a device for preventing a winding-up of bottom dross in a continuous hot dip galvanizing tank capable of more surely suppressing the adhesion of bottom dross to a steel strip and moreover capable of swiftly executing the exchanging operation of a sink roll. SOLUTION: In a member provided on the periphery of a sink roll 4 within a plating tank in which a steel strip 1 is subjected to continuous hot dip galvanizing and preventing the floating of dross 9 accumulated at the bottom part of the plating tank in a plating bath, the shape thereof is formed in two cylindrical bodies covering the outer circumference of the sink roll 4, and, both are provided in a region excluding the region around which the steel strip of the sink roll 4 coils.

2. 发明专利

JPH11246916A VERTICAL TYPE CONTINUOUS WATER-COOLING DEVICE 失效
公开(公告)号：JPH11246916A
公开(公告)日：1999-09-14
申请号：JP4936398
申请日：1998-03-02
申请人： KAWASAKI STEEL CO
发明人： IWATANI AKIYUKI
IPC分类号： F16J15/44 , C21D1/00 , C21D9/52 , C21D9/573 , F16J15/40 , F16J15/46
摘要： PROBLEM TO BE SOLVED: To surely prevent a water leakage from a strip inlet with little sealing air and to provide a sealing device without interference with the strip, in a device for fog- or spray-cooling the high temp. strip continuously run to the vertically upper direcrion. SOLUTION: Sealing plates 12 are arranged to the front and the back surfaces of a strip at a lower part strip inlet and sealing air is blown upward to a gap between the sealing plate 12 and the strip 3. On the other hand, energized force is given to the sealing plate 12 toward the approaching direction to the strip 3 and the dimension of an opening part free from a water leakage is held in balance with the sealing air.

3. 发明专利

JPH1072654A METHOD FOR PREVENTING STICKING OF DROSS AROUND IN-BATH SYNCHRONIZING ROLL 失效
公开(公告)号：JPH1072654A
公开(公告)日：1998-03-17
申请号：JP23066996
申请日：1996-08-30
申请人： KAWASAKI STEEL CO
发明人： IWATANI AKIYUKI
IPC分类号： C23C2/00 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To prevent the sticking of dross around a synchronizing roll by detecting the dross from the in-bath synchronizing roll surface and to stabilize operation over a long period of time by bringing a contact roll into point-to- point contact with the synchronizing roll and reversely rotating this contact roll. SOLUTION: The contact roll 10 is brought into point-to-point contact with the synchronizing roll 3 in the bath of a plating line in a position where the roll does not come into contact with a strip 2. The contact roll 10 is held freely rotatably at the synchronizing roll 3 and is reversely rotated with respect to the rotating direction of the synchronizing roll 3. The contact roll 10 comes into uniform contact with the synchronizing roll 3 and detaches the dross from the synchronizing roll surface at all times and, therefore, the dross does not grow. The contact roll does not give rise to thermal deformation and allows molten metal to flow in the direction parting from the surface of the synchronizing roll 3. The molten metal is further detached by centrifugal force. Then, the phenomenon that the dross is included into the contact surfaces between the strip 2 and the synchronizing roll 3 is prevented.

4. 发明专利

JPH0835100A ONE SIDE CONTINUOUS ELECTROLYTIC ETCHING TREATMENT DEVICE FOR METALLIC STRIP 失效
公开(公告)号：JPH0835100A
公开(公告)日：1996-02-06
申请号：JP17218694
申请日：1994-07-25
申请人： KAWASAKI STEEL CO
发明人： OKUNO SHINICHI , IWATANI AKIYUKI
IPC分类号： C25F7/00
摘要： PURPOSE:To improve the accuracy of fine working on the surface of a metallic strip by using liquid mercury as an energizing anode in place of an energizing roll, thereby preventing degradation in resist pattern accuracy by roll draft at the time of using the energizing roll and degradation in the surface characteristics of the metallic strip by dents, etc. CONSTITUTION:This one side continuous electrolytic etching treatment device electrolytically etches the metallic strip 5 coated with a resist to prevent contact with an etching liquid in prescribed patterns on its front surface by passing the metallic strip in cathode plates 2 of an electrolytic treating cell 9 consisting of a horizontal bath. The device described above is provided with a vessel 15 holding the liquid mercury 6 forming an anode section 1 on at least its inlet or outlet side. The liquid mercury 6 in the anode section 1 is brought into contact with the rear surface of the metallic sheet 5 by its plane tension at the time of passing the strip within the device. The vessel 15 is provided with liquid sealing means on its circumference to prevent leakage of the liquid mercury 6 outside the vessel 15.

5. 发明专利

JPH07277501A BAND PLATE CONVEYANCE DEVICE 失效
公开(公告)号：JPH07277501A
公开(公告)日：1995-10-24
申请号：JP6925794
申请日：1994-04-07
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： TAGUCHI TOSHIO , MIZUTA KEIJI , TANIZAKI KEIJI , MURAIE TAKESHI , OKAMURA SUSUMU , IWATANI AKIYUKI , ADACHI KAZUNARI , ICHI TOMOYUKI , HAGIWARA MITSUHIKO , ADACHI SHIGEYOSHI , KONDOU TAKAISA
IPC分类号： B65G51/03 , B65H29/24 , B65H29/52
摘要： PURPOSE:To provide a band plate conveyance device which reduces rolling of a band plate and cost by a simple method. CONSTITUTION:In a band plate conveyance device provided with a levitation device 1 which is provided below a pass line of a band plate 1 and in which a plurality of jet ports 2 which jet pressurized gas upward are formed and side plates 5 are erected on both end sides in the direction of width of the band plate 101 and a thermal insulation wall 6 which covers the band plate 101 and the levitation device 1, a buffer plate 17 which opposes to the levitation device 1 across the band plate 101 is provided.

6. 发明专利

JPH0768104A DEVICE FOR LIQUEFYING FOAM 失效
公开(公告)号：JPH0768104A
公开(公告)日：1995-03-14
申请号：JP24410193
申请日：1993-09-30
申请人： KAWASAKI STEEL CO
发明人： IWATANI AKIYUKI , SHIRAKAWA GORO
IPC分类号： B01D19/00 , B01D19/02
摘要： PURPOSE:To effectively liquefy foam with ultrasonic wave in the conventional equipment by supplying the foam in a groove or vessel having a side wall tilted from the center line in the cross section, irradiating with ultrasonic wave and destroying the foam with the ultrasonic and reflected wave to liquefy. CONSTITUTION:The foam is destroyed and liquefied by a V-shaped groove type flow passage 36 having a pair of side walls 38 tilted from the center line in the cross section, an ultrasonic horn 40 to intermittently irradiate the flow passage 36 with ultrasonic wave and a pressure wave due to the reflection from the side walls 38 from plural directions. In this case, the interval between the ultrasonic horn 40 and the V-shaped groove type flow passage 36 is adequately setted so as to increase defoaming quantity. In this way, the foam is instantly destroyed by using ultrasonic wave.

7. 发明专利

JPH0742000A METHOD FOR ETCHING METAL SURFACE 失效
公开(公告)号：JPH0742000A
公开(公告)日：1995-02-10
申请号：JP19033093
申请日：1993-07-30
申请人： KAWASAKI STEEL CO
发明人： IWATANI AKIYUKI , NAOI TAKAYUKI
IPC分类号： C23F1/00 , C25F3/14 , H01L21/306
摘要： PURPOSE:To drastically reduce the cost of a resist and to prevent environmental pollution from occurring by forming a resist of specified pattern on the surface of a metal, etching the metal.and recycling the resist. CONSTITUTION:A coiled metallic sheet is rewound by a payoff reel 1 and introduced into a resist printer 5 through an inlet-side looper 3, and a resist (paraffin wax, etc.) to prevent contact with an etchant is deposited on the sheet surface in a specified pattern, cooled by a cooler 6, solidified and firmly attached to the sheet. The sheet is then introduced into an electrolytic etching tank 7, etched by direct energization and then introduced into a resist removal tank 8. The resist is dipped in hot water, melted with steam and floated up on the hot water, water is sprayed to solidify the resist, and the solidified resist is recovered in a recover treatment device 9 and recycled. The sheet freed from the resist is wound on a tension reel 2 through an out-side looper 4. Consequently, about 80% of the resist is recovered, and the cost is drastically reduced.

8. 发明专利

JPH04159919A PIPING FOR SLURRY 失效
公开(公告)号：JPH04159919A
公开(公告)日：1992-06-03
申请号：JP28441390
申请日：1990-10-24
申请人： KAWASAKI STEEL CO
发明人： IWATANI AKIYUKI
IPC分类号： B65G53/52 , B65G53/66
摘要： PURPOSE:To prevent a line from clogging and allow it to be serviceable semi- permanently by inserting in the piping a linear resilient member of hard nature along the line, and furnishing a drive device at one of the ends of this resilient member, and therewith giving vibration or rotational motion from outside the pipe. CONSTITUTION:Pipings 1-1 and 1-2 are joined together by a T-fitting 2, and from its open end a spirally shaped piano wire 3 is inserted along the piping 1-1 positioned horizontally. A drive device 4 is mounted at one end of this piano wire 3, and the wire 3 is rotated. Accordingly slurry in the horizontal piping 1-1 is agitated with rotation of the piano wire 3, which should prevent deposition and fast attachment. Thus the piping can be used semi-permanently without fear of clogging.

9. 发明专利

JPH03198916A UNWINDING SPEED CONTROLLING METHOD FOR EXPANDING AND REDUCING SYSTEM MANDREL AND ITS CONTROLLER 失效
公开(公告)号：JPH03198916A
公开(公告)日：1991-08-30
申请号：JP33587389
申请日：1989-12-25
申请人： KAWASAKI STEEL CO
发明人： NAOI TAKAYUKI , NARUSE YUTAKA , HIRASAKI SHUICHI , TAKEUCHI TORU , IWATANI AKIYUKI
IPC分类号： B21C47/16 , B21C47/30
摘要： PURPOSE:To improve the productivity by obtaining the running speed of the unwound strip with the number of revolution of the mandrel and the radium, obtaining the remaining turns of the coil with the plate thickness of strip and controlling the unwinding speed of the coil. CONSTITUTION:The linear sensor measures the radius (r) of the mandrel 2 continuously. And the remaining turns of the coil x, (v/2piN-r) is obtained with the running speed v of the unwound strip, the number of revolution of the mandrel 2 N, the radium of mandrel (r) and the plate thickness of the strip (t). Based on the obtained remaining turns of the coil, the controller 12 outputs the controlling signal I to the driving circuit 13 of the motor 7. Therefore, the starting time-point of the deceleration can be delayed to the utmost and the operation time of pinch roll can be also shortened as short as possible, and the productivity is improved.

10. 发明专利

JPH03146212A METHOD FOR REMOVING WATER BY VACUUM SUCTION TYPE WRINGER ROLL OF METALLIC STRIP 失效
公开(公告)号：JPH03146212A
公开(公告)日：1991-06-21
申请号：JP28187189
申请日：1989-10-31
申请人： KAWASAKI STEEL CO
发明人： IWATANI AKIYUKI , NAOI TAKAYUKI
IPC分类号： F26B13/30 , B21B45/02
摘要： PURPOSE:To answer the needs for low temperature drying of a strip in a surface treated steel sheet process by supplying gas having a dew point lower than sheet temperature to part of the surfaces of rolls. CONSTITUTION:Many through holes 2 are provided on each hollow axis 1. Its outer circumference part is lined with unwoven fabric, negative pressure is produced by a vacuum pump in the inner part of each lining axis 1 to constitute a vacuum suction type wringer roll 5. The strip 4 is gripped by a pair of rolls 5 and the water on the sheet is sucked and removed. Then, gas having a dew point lower than the sheet temperature is supplied by a gas header 6, a nozzle 7 at least to part of the surface of each roll 5. Nitrogen gas obtained by gasifying liquid nitrogen is used as the gas. In this way, the equipment cost, lining cost can be reduced.

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