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1. 发明专利

JPS63303100A CONTINUOUS TREATING EQUIPMENT FOR STRIP STEEL 失效
公开(公告)号：JPS63303100A
公开(公告)日：1988-12-09
申请号：JP13819487
申请日：1987-06-03
申请人： MITSUBISHI HEAVY IND LTD , KOBE STEEL LTD
发明人： FURUKAWA HEIZABURO , UENO SHIZUAKI , FURUYA TAKUMI , TANAKA SUMIHIKO , TANAKA TAKESHI , MIZUGUCHI MAKOTO , IKEDA TETSUO
IPC分类号： C25F7/00
摘要： PURPOSE:To enable use of a sledging bar by changing gap between electrodes as parallel shiftable at least one side of the faced electrodes. CONSTITUTION:In a continuous treating equipment for strip steel, a reinforced plate 2 is fitted at back face of at least one side in one pair of the electrodes 7a, 7b, for example the outer side electrode 7b, and parallel links 23a-23d are fitted at rear face of the reinforced plate 20. These parallel links 23a-23d are parallel shifted from horizontal state to diagonal upward and the gap between the electrodes 7a, 7b is enlarged from the prescribed narrow gap S1 at the time of electrolytic treating to gap S2 to be possible to pass the sledging bar 17. After passing the sledging bar 17, again the gap between electrodes 7a, 7b is returned back to the gap S1 and a large current under low voltage is supplied, to raise the current density.

2. 发明专利

JPS62231000A METHOD AND APPARATUS FOR PREVENTING YELLOWING FOR THIN SHEET CLEANING INSTALLATION 失效
公开(公告)号：JPS62231000A
公开(公告)日：1987-10-09
申请号：JP7450286
申请日：1986-03-31
申请人： KOBE STEEL LTD , MITSUBISHI HEAVY IND LTD
发明人： TANAKA TAKESHI , TANAKA SUMIHIKO , MIZUGUCHI MAKOTO , MAEKAWA HIROHIKO , IKEDA TETSUO , FURUKAWA HEIZABURO , UENO SHIZUAKI , FURUYA TAKUMI
IPC分类号： C23F15/00 , B08B1/02 , B08B3/08 , C23G3/02 , C25F1/00 , C25F1/06 , C25F7/00
摘要： PURPOSE:To continue the movement of a strip in a cleaning device in the case of stopping the feed of the strip and to prevent the yellowing of the strip by the stoppage by providing buffer parts to the inlet side part and outlet side part of the cleaning device for the strip. CONSTITUTION:A moving carriage 21 is provided along the moving route of the strip of the cleaning device 1 and a pair of rolls 25a, 25b are provided to both sides in the moving direction at the time of cleaning the strip by electrolytic cleaning, etc. The strip to be put into and out of the cleaning device 1 is wound around a driving roll 22 and driven roll 23 facing the inlet side and exist side of the moving carriage 21 via deflector rolls 26a, 26b, 27b on the inlet and outlet sides of the moving carriage 21. The moving carriage 21 is moved back and forth along the moving route 20 to continue the movement of the strip in the cleaning device by utilizing the buffer parts 28, 29 constituted between the deflector rolls 26a, 26b and the roll 25d as well as between the deflector rolls 27a, 27b and the roll 25b in the case of once stopping the feed of the strip during the cleaning operation. The yellowing of the strip surface is thus prevented.

3. 发明专利

JPH01123100A METHOD AND DEVICE FOR DEFOAMING FOR STEEL SHEET CLEANING EQUIPMENT 失效
公开(公告)号：JPH01123100A
公开(公告)日：1989-05-16
申请号：JP28109687
申请日：1987-11-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： FURUSAWA YUJI , IWAKI KAN , SHIMAZAKI HAJIME , FUJIOKA ISAMU , FURUYA TAKUMI , TASAKA ZENJIRO
IPC分类号： C25F7/00 , C25F7/02
摘要： PURPOSE:To effectively defoam a treating liquid so as to prevent the outflow of the bubbles of the treating liquid generated by cleaning of a steel sheet and to recover the defoamed liquid as the treating liquid by injecting the treating liquid which is of the same kind as said treating liquid and is kept at the temp. lower than said treating liquid to the bubbles of the treating liquid. CONSTITUTION:The steel sheet 2 which is stuck with fats and oils, etc., on the surface is passed in an immersion tank 3, an electrolytic tank 4, etc., and the above-mentioned fats and oils, etc., are cleaned and removed by the air bubbles generated by saponification with an alkaline soln. or electrolysis. The bubbles generated in the treating liquid in the above-mentioned steel sheet cleaning equipment are introduced together with the treating liquid to a spray tank 12 through a sub-tank 7 in which the cleaning and treating liquids such as alkaline liquid are prepd. The treating liquid which is of the same kind as the treating liquid and is kept at the temp. lower than the temp. thereof is injected from spray nozzles 13 provided in the tank to the bubbles. The bubbles are thereby effectively eliminated.

4. 发明专利

JPS58177452A Tension control device of dancer control type 失效
标题翻译：扬声器控制类型的张力控制装置
公开(公告)号：JPS58177452A
公开(公告)日：1983-10-18
申请号：JP6055282
申请日：1982-04-12
申请人： Mitsubishi Heavy Ind Ltd , Riyousen Eng Kk
发明人： FURUYA TAKUMI , FUJIWARA TOSHIO , OOYAMA KOUJI
IPC分类号： C23C2/00 , C21D9/56 , C23C2/40
CPC分类号： C23C2/40
摘要： PURPOSE:To enable the stable control of a wide range of tension with less fluctuations with one unit of dancer roll by using two pieces of large and small cylinders for controlling the tension in a tension control device of a dancer roll type for controlling the tension of a steel strip and controlling the tension with said cylinders respectively in a high range and a low range. CONSTITUTION:Two pieces of large and small air cylinders 15, 16 are mounted to a tension control device of a dancer roll type for a steel strip 31 to be installed in the inlet of a continuous annealing furnace 32 in a continuous galvanizing line, and a dancer roll 14 is driven by said cylinders so as to control the tension of the strip 31. In the stage of controlling the strip 31 in a low tension range, the cylinder rod of the large cylinder 15 is fixed at a max. stroke and the tension of the strip in the furnace 32 is controlled only with the small cylinder 16. On the other hand, in the stage of controlling the strip 31 in a high tension range, the cylinder rod of the small cylinder 16 is moved upward up to the max. stroke and the tension of the steel strip in the furnace 32 is controlled only with the small cylinder 15.
摘要翻译：目的：通过使用两个大，小的气缸来控制张力控制装置中的张力，以便通过一个单位的调节辊来稳定地控制宽范围的张力和较小的波动，用于控制张力的张力钢带并分别控制在高范围和低范围内的所述气缸的张力。构成：将两片大而小的气缸15,16安装在用于钢带31的调节辊式张力控制装置中，以安装在连续镀锌线中的连续退火炉32的入口中，浮动辊14由所述气缸驱动，以便控制条带31的张力。在将条带31控制在低张力范围的阶段，大气缸15的气缸杆被固定在最大。炉32中的条带的张力仅由小圆筒16控制。另一方面，在控制条带31处于高张力范围的阶段，小圆筒16的圆柱杆向上移动达到最大炉32中的钢带的行程和张力仅由小气缸15控制。

5. 发明专利

JPH0913183A METHOD FOR PICKLING STAINLESS STEEL AND APPARATUS THEREFOR 失效
公开(公告)号：JPH0913183A
公开(公告)日：1997-01-14
申请号：JP16371695
申请日：1995-06-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： FURUYA TAKUMI , ITANO SHIGEO , OTA TOSHIYUKI
IPC分类号： C23G1/08 , C23G3/02
摘要： PURPOSE: To facilitate optimum control of a pickling soln. by measuring the nitric acid concn., hydrofluoric acid concn. and iron ion concn. of the pickling soln. to be cyclically used and replenishing nitric acid and hydrofluoric acid in such a manner that the measured values attain set values. CONSTITUTION: A pickling soln. sample 17 is drawn and is supplied to a measuring cell 15 after the start of pickling of a stainless steel strip 1. An arithmetic unit 31 measures the temp. of the sample 17 by a thermometer 23 and determines oxidation reduction potential from the potential difference between a platinum electrode 19 and a reference electrode 18. The sample 17 is then diluted and the nitric acid ion concn. is determined from the potential difference between a nitric acid ion electrode 20 and the reference electrode 18. A circulating vessel 4 is replenished with the prescribed amt. of the nitric acid if the measured concn. is lower than the set range. The hydrofluoric acid ion concn. of the sample 17 is similarly determined and the circulating vessel 4 is similarly replenished with the prescribed amt. of the hydrofluoric acid. The ratio of ferric ions to ferrous ions is determined from the oxidation reduction potential and the total of the ferrous and ferric ions is determined by titrating the pickling soln. The fresh pickling soln. is prepd. according to the iron ion concn. determined in such a manner.

6. 发明专利

JPH01139800A METHOD FOR CONTINUOUSLY AND ELECTROLYTICALLY CLEANING STRIP 失效
公开(公告)号：JPH01139800A
公开(公告)日：1989-06-01
申请号：JP29807987
申请日：1987-11-26
申请人： MITSUBISHI HEAVY IND LTD
发明人： FURUYA TAKUMI
IPC分类号： C25F7/00
摘要： PURPOSE:To prevent the damage of an electrode due to the contact of the electrode with a deformed part of the strip, the shortening of the service life, and the breakage of the strip by making the interval between the electrodes provided in an electrolyte larger than a normal value when the deformed part of the strip passes between the electrodes. CONSTITUTION:When the deformed part of a band steel F such as the welded joint and lug passes through a shape detecting part 10, an abnormality signal is transmitted to a control panel 11 from the detector 10. The time necessary for the band steel F to travel from the detector 10 to the electrodes 5a and 5b is calculated by the control panel 11 from the line speed. A driving command is imparted to an actuator 9 immediately before the deformed part of the band steel F reaches the electrodes 5a and 5b while taking account of the delay actuation time of the actuator 9. As a result, the electrodes 5a and 5b are moved through cross beams 7a and 7b and supporting plates 6a and 6b as shown by the alternate long and two short dashes line in the figure, hence the interval is widened, and the deformed part is passed. When the detection value of the detector 10 returns to an allowable range, a command is transmitted to the actuator 9 from the control panel 11, and the interval between the electrodes 5a and 5b is returned to a specified set dimension.

7. 发明专利

JPH06330360A EQUIPMENT FOR WASHING TREATMENT OF STRIP 失效
公开(公告)号：JPH06330360A
公开(公告)日：1994-11-29
申请号：JP11562293
申请日：1993-05-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： FURUYA TAKUMI , TSUMOTO YOSHIKIMI , HASHIMOTO RITSUO , HIRAI ETSURO , TANIZAKI KEIJI
IPC分类号： C23G3/00 , C23G3/02
摘要： PURPOSE:To increase the pressure in resonance tubes and to intermittently inject the washing liquids in nozzles with high output to the surfaces of a passing strip by feeding gases controlled in flow rate into the resonance tubes and fluctuating gaseous pressures. CONSTITUTION:Air is fed into the resonance tubes 4a, 4b from gas supplying devices 9a, 9b while gas flow rate control valves 10a, 10b are controlled. The strip 101 is passed within a washing tank 1 by driving a crank shaft to rotate and moving a piston back and forth. The air pressures in the resonance tubes 4a, 4b are increased and the injection force of the washing liquids 102 in the upper and lower nozzles 3a, 3b is increased. The air in the resonance tubes 4a, 4b fluctuates periodically and the washing liquids 102 in the nozzles 3a, 3b are intermittently injected with the high output to the surfaces of the strip 101. Nitrogen may be used in place of the air for the gas. As a result, the washing treatment efficiency of the strip is improved.

8. 发明专利

JPS60197898A METHOD AND DEVICE FOR ELECTROLYTIC TREATMENT OF STEEL HOOP 失效
公开(公告)号：JPS60197898A
公开(公告)日：1985-10-07
申请号：JP5303784
申请日：1984-03-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： FURUYA SHINICHI , FURUKAWA HEIZABUROU , FURUYA TAKUMI , SHIMOZATO YOSHIO , YAMAZAKI TSUNEHIRO , YANAGI KENICHI , YAMADA KATSUHIKO
IPC分类号： C25D13/16 , C25D7/06 , C25D13/00 , C25D13/02 , C25D17/12 , C25F7/00
摘要： PURPOSE:To decrease ohmic loss by winding a steel hoop on an electrically insulating roll, passing the hoop through a treating device and providing an anode electrode and a cathode electrode at the specified distance maintained from the surface of the electrically insulating roll where the steel hoop passes. CONSTITUTION:A steel hoop 11 is wound on an electrically insulating roll 12 and is passed through the inside of an electrolyte 113 consisting of an aq. soln. of an alkali or acid then an anode electrode 13 and a cathode electrode 14 are connected integrally by an electrical insulator 18 to the surface of the roll 12 on the side where the steel hoop passes. Said electrode 13 and electrode 14 are so provided at the prescribed distance maintained from the steel hoop 11 so as not to contact therewith. The inside surface of the two electrodes 13, 14 in the part slightly wider than the strip 11 is made the metallic region and the balance is made the insulating region extending to both ends of the body surface of the roll 12.

9. 发明专利

JP2002294478A DRAINING DEVICE FOR STEEL STRIP 失效
公开(公告)号：JP2002294478A
公开(公告)日：2002-10-09
申请号：JP2001095686
申请日：2001-03-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHINTANI KOJI , FURUYA TAKUMI
IPC分类号： C23G3/02
摘要： PROBLEM TO BE SOLVED: To provide a draining device for removing a remained pickling solution after a pickling treatment for the surface of the steel strip, which can solve a problem that a conventional device of removing water with only a wringer roll causes rust or stain pattern, because remaining water in both ends of the steel strip becomes excessive water adhering to the both ends of the surface of the steel strip, and needs to slow down a line speed for perfectly removing the excessive water, which leads to reduction of productivity. SOLUTION: The draining device for the steel strip comprises a wringer roll, of which the shaft is arranged perpendicular to a moving direction of the steel strip, for removing water adhered to the steel strip by pressing the top and bottom surfaces of the steel strip while rotating, and a slit nozzle which is arranged over and below the steel strip at a forward tilting angle of θ1 and an outward angle of θ2 degrees, for blowing and removing the excessive water off toward the both edges without spraying it to the wringer roll, by spouting high pressure air from a slanting rear position toward the both sides. Thereby, the device solves the above problems, eliminates a need for moving the wringer roll along a width direction so as to meet a change of the width of the steel strip, and prevents the life-shortening of the wringer roll.

10. 发明专利

JPH0913200A METHOD FOR REGENERATING PICKLING SOLUTION FOR STAINLESS STEEL SHEET AND DEVICE THEREFOR 失效
公开(公告)号：JPH0913200A
公开(公告)日：1997-01-14
申请号：JP16524295
申请日：1995-06-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： OTA TOSHIYUKI , ITANO SHIGEO , FURUYA TAKUMI
IPC分类号： C25F1/06 , C25F7/02
摘要： PURPOSE: To provide a method and device for regenerating and reusing a neutral-salt electrolyte applied to descaling in the continuous annealing and pickling line of stainless steel sheet. CONSTITUTION: A neutral-salt electrolyte having electrolytically removed the oxide scale of staniless steel sheet 1 is regenerated by this device and reused. Sodium hydroxide in an amt. almost equivalent to the dissolved metal in the electrolyte is added, and the nonmagnetic polyvalent metal ion is electrolytically reduced to the bivalent metal ion in an electrolytic cell 4. Air is then introduced through a blower 8, and the hydroxide of the generated bivalent metal ion is oxidized to a magnetic multiple oxide. The multiple oxide is magnetically removed by a magnetic field generator 5 provided with magnets 5a and 5b and a ferrite wire mesh 9, and then the treated liq. is recovered in a reserve tank 3.

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