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1. 发明专利

JPH0578874A ULTRASONIC PICKLING DEVICE 失效
公开(公告)号：JPH0578874A
公开(公告)日：1993-03-30
申请号：JP27189091
申请日：1991-09-25
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： HIRAI ETSURO , TANIZAKI KEIJI , SAKA SHIGETO , NAGAI NAOYUKI , HINO ETSUJI , TESHIBA TOKO , TSUNODA HIROSHI , SUGANUMA NAMIO , HIRASE KOICHI
IPC分类号： C23G3/02
摘要： PURPOSE:To reduce the equipment cost by arranging an ultrasonic irradiation device confronted with the specified length of the full length of the metallic strip traveling passage in a tank. CONSTITUTION:A pickling liq. L in a tank 1 is irradiated with an ultrasonic wave from an ultrasonic irradiation device 10. A metallic strip S is traveled through the liq. L and pickled. Th device 10 is confronted with the length of the strip S traveling passage of

2. 发明专利

JPS6415224A COIL OPENER DEVICE 失效
公开(公告)号：JPS6415224A
公开(公告)日：1989-01-19
申请号：JP16982587
申请日：1987-07-09
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： SHIBATOMI NOBUHIRO , SUGA SHOJI , TESHIBA TOKO , SHITOMI MAKOTO , KOBA TOMOYUKI
IPC分类号： B21C47/34
摘要： PURPOSE:To quicken the supply of a strip coil to a line by rotating the strip coil provided in parallel on a line by a rotating device, opening the tip part by an end opening means and pulling out the strip along the line by a pulling out means as well. CONSTITUTION:The strip coil 14 on a coil car 26 is pressed by a pressurizing roller 37 to bring a plate end detector 39 into contact with the coil 14. Then, the coil 14 is turned counter-clock wisely by a cradle roll 30 and stopped at the time when the detector 39 detects the plate end. Then, the pressurizing roll 37 and detector 39 are retreated to the upper part and the tip of a wedge 44 is abutted to the coil 14. The coil 14 is then turned clockwisely, the plate end is opened by the tip of the wedge 44, a strip plate 17 is passed onto the wedge 44 and held by the upper and lower clamps 57, 58 of a clamp car 53. The coil car 26 and clamp car 53 are moved to a rolling line to charge the coil 14 to a payoff reel 12. The holding of the strip plate 17 by the upper and lower clamps 57, 58 is then released to retreat the clamp car 53 and the supply of the coil 14 is completed.

3. 发明专利

JPH0578870A CONTINUOUS PICKLING DEVICE 失效
公开(公告)号：JPH0578870A
公开(公告)日：1993-03-30
申请号：JP24378091
申请日：1991-09-24
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： TANIZAKI KEIJI , HIRAI ETSURO , SAKA SHIGETO , HINO ETSUJI , TESHIBA TOKO , SUGANUMA NAMIO , HIRASE KOICHI
IPC分类号： C23G3/02
摘要： PURPOSE:To improve the pickling effect by providing plural receiving members for clamping a strip in the rectangular-sectioned passage surrounding the strip in the traveling direction of the strip. CONSTITUTION:A traveling strip 61 is dipped in a pickling soln. 62 of an immersion-type continuous pickling tank 51 in the continuous pickling device. A rectangular-sectioned passage 54 surrounding the strip 61 is provided in the tank 51. Plural receiving skids 59a, 59b,... for clamping the strip 61 and immersion guide rolls 60a, 60b,... are provided in the passage 54 in the traveling direction of the strip 61, and an ultrasonic diaphragm is opposed to the strip in the passage, and an ultrasonic vibration is furnished to the diaphragm. A jet nozzle is provided to discharge the plating soln. in the opposite direction to the traveling of the strip. Consequently, a high pickling effect is obtained at a low equipment cost.

4. 发明专利

JPH0578873A PICKLING DEVICE 失效
公开(公告)号：JPH0578873A
公开(公告)日：1993-03-30
申请号：JP24378391
申请日：1991-09-24
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： NAGAI NAOYUKI , IDEUE KAZUO , HIRAI ETSURO , NAKAJIMA MOTOMI , SAKA SHIGETO , HINO ETSUJI , TESHIBA TOKO , MURAKAMI TOYOHIKO , TSUNODA HIROSHI , SUGANUMA NAMIO
IPC分类号： C23G3/02
摘要： PURPOSE:To increase the capacity of the pickling device by preventing a decrease in the sound pressure produced by the circulation of pickling soln. when a steel strip is passed. CONSTITUTION:A steel sheet 10 is passed through a pickling tank 12 contg. aq. hydrochloric acid 11, irradiated with an ultrasonic wave and descaled in this pickling device. A hydrochloric acid spare tank 13 through which the aq. hydrochloric acid is circulated via a communicating port 14 is provided on both end faces of the pickling tank 12 to increase the internal pressure when the steel sheet 10 is passed, hence the decrease in the sound pressure produced by the circulation of the soln. is obviated, and the pickling capacity is increased.

5. 发明专利

JPS6411018A THREADING METHOD IN LOOPER FOR CONTINUOUS STEEL STRIP TREATING EQUIPMENT 失效
公开(公告)号：JPS6411018A
公开(公告)日：1989-01-13
申请号：JP16245687
申请日：1987-07-01
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： SHIBATOMI NOBUHIRO , NAGAI SHOJI , SUGA SHOJI , TESHIBA TOKO , SHITOMI MAKOTO , KOBA TOMOYUKI
IPC分类号： B21C49/00 , B65H20/24
摘要： PURPOSE:To facilitate a steel trip fitting and maintenance inspection by executing threading with the drawing of a guide roll after passing a steel trip linearly through the gap between the guide roll drawn out of an air tight casing and a steering roll. CONSTITUTION:A loop car 11 inside an air tight casing 3 is pulled out of the casing side wall 3a released by the winding of a drum 20. A guide sheave 31 is fitted to the tip of a led-in steel strip 1, pulled up by a drum 30 and pulled out by shifting to a rope 17a. The loop car 11 is thereafter drawn inside the casing by driving a winding drum 14 and the casing side wall 3a is closed to execute threading between a steering roll 12a and guide roll 11a. At the time of cutting the steel strip 1 as well, it is welded by pulling it out of the air tight casing 3 in the order reverse to the above approximately. Since a plate passing and connection are made easily outside an airtight chamber, a working time is remarkably shortened and a maintenance inspection is facilitated.

6. 发明专利

JPH0128647B2 失效
公开(公告)号：JPH0128647B2
公开(公告)日：1989-06-05
申请号：JP2160983
申请日：1983-02-14
申请人： KAWASAKI STEEL CO
发明人： MYAKE HIDENORI , FUJIWARA SHUNJI , NAKAZATO YOSHIO , YAGISHIMA AKYA , TESHIBA TOKO
IPC分类号： B21C47/02 , B21C47/00 , B65H23/04 , B65H23/16 , B65H23/195

7. 发明专利

JPS6258804B2 失效
公开(公告)号：JPS6258804B2
公开(公告)日：1987-12-08
申请号：JP18416382
申请日：1982-10-20
申请人： KAWASAKI STEEL CO
发明人： NAKAZATO YOSHIO , YAGISHIMA AKYA , TESHIBA TOKO , FUJIWARA SHUNJI , KISHIDA AKIRA , IDA YUKIO
IPC分类号： B21B37/28 , B21B1/22 , B21B37/00

8. 发明专利

JPS61150706A ROLL COOLING METHOD OF COLD ROLLING MILL 失效
公开(公告)号：JPS61150706A
公开(公告)日：1986-07-09
申请号：JP27524284
申请日：1984-12-25
申请人： KAWASAKI STEEL CO , MITSUBISHI ELECTRIC CORP
发明人： MATSUMOTO MASAJI , KATAYAMA HIDEO , KITAMURA HIDEKI , WAKITANI YOSHIAKI , TESHIBA TOKO , OZAWA KENJIYU , USUI AKIRA , HONDA TOSHIICHI , IKEDA AKIRA
IPC分类号： B21B27/10 , C02F1/78
摘要： PURPOSE:To relieve the maintenance of a water filter, etc. as well as to reduce make-up water and to reduce its operation cost, by injecting gaseous ozone into roll-cooling water is prevent the generation of slime in the supplying pipe of cooling water as well as to improve the quality of a metallic strip. CONSTITUTION:For generating gaseous O3 by a gaseous-O3 generating and supplying device, gaseous O2 from a gaseous-O2 supplying device 19 is pressurized by a circulating blower 20 and is sent to a gaseous-O3 generator 21. A part of the gaseous-O2 is converted into gaseous O3, and the O3-containing gaseous O2 is fed into an adsorbing tower 22 through a control valve 23. At the time of adsorbing the O3, the O3 contained in the O3-containing gaseous O2 is adsorbed by cooling an adsorbent in the tower 22 with the aid of a refrigerator 24. The gaseous O2 from the tower 22 is sent to the generator 21 again by the blower 20 to adsorb the required amount of O3. Next, a heat-up brine pump 28 is actuated to send a heating medium into a heating fin 26 in the tower 22, to adsorb the O3 adsorbed by the adsorbent. When an ejector pump 18 is started and a control valve 31 is opened, the reaction and mixing of the O3-containing gas and the cooling water is accelerated by an ejector 16.

9. 发明专利

JPH0576916A METHOD FOR CONTROLLING WIDTH IN COLD TANDEM ROLLING 失效
公开(公告)号：JPH0576916A
公开(公告)日：1993-03-30
申请号：JP23636591
申请日：1991-09-17
申请人： KAWASAKI STEEL CO
发明人： UCHIDA YASUTAKA , GOTO SHUNJI , KURODA SHIGERU , OTA NORIO , TESHIBA TOKO
IPC分类号： B21B37/00 , B21B37/22
摘要： PURPOSE:To remarkably reduce variation in width of a coil, to advantageously deal with the requirement of width change in the same coil and to control the finished width only by information on the upstream side of rolling line. CONSTITUTION:In cold tandem rolling, the effect of rolling speed and tension between stands that affects on fluctuation in width of material to be rolled of every kinds of steel and every thickness is preliminarily determined as relation shown by the formula 1. When rolling speed is varied, the adequate ratio of variation of tension that the fluctuation rate of width falls in a specified range is calculated based on the formula 1 and tension between stands is controlled according to this calculated value. B=a0+a1XVr+a2XTs... 1. Where, B: rate of fluctuation in width, Vr: rolling speed, Ts: ratio of variation of tension between stands, a0, a1, a2: constant that are decided in accordance with kinds of steel and thickness.

10. 发明专利

JPH04210461A METHOD FOR COOLING ALLOYED HOT-DIP ZINC-COATED STEEL SHEET AND EQUIPMENT THEREFOR 失效
公开(公告)号：JPH04210461A
公开(公告)日：1992-07-31
申请号：JP40125490
申请日：1990-12-11
申请人： KAWASAKI STEEL CO
发明人： KIYASU TETSUYA , TESHIBA TOKO , SEKIDA TAKASHI , NAITO TADASHI , FURUKAWA KUSUO
IPC分类号： C23C2/26 , C25F1/06
摘要： PURPOSE:To remove an oxidized film from a steel sheet and to providing it with surface properties such as anti-powdering properties by treatment in a short time by subjecting the surface of an alloyed hot-dip zinc-coated steel sheet to alkali electrolysis treatment in a specified steel sheet temp. range. CONSTITUTION:A hot-dip zinc-coated steel sheet obtd. by hot-dip zinc-coating a steel sheet, immediately executing heating treatment and diffusing and alloying Fe into the galvanizing layer from the base steel sheet, is cooled. At this time, this steel sheet is subjected to electrolysis treatment in a weak alkali soln. of sodium hydroxide at 100 to 300 deg.C steel sheet temp. after alloying treatment to remove an oxidized film on the surface and to form its surface state into an active one.

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