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1. 发明专利

JP2002248600A METHOD FOR GRINDING WELDED PART OF STEEL STRIP ON CONTINUOUS PROCESSING LINE 失效
公开(公告)号：JP2002248600A
公开(公告)日：2002-09-03
申请号：JP2001047844
申请日：2001-02-23
申请人： KAWASAKI STEEL CO
发明人： YAMAZAKI SHINJI , MATSUI NORIYUKI , ENAMI TAKASHI
IPC分类号： B24B51/00 , B23K37/08 , B24B7/10 , B24B9/00
摘要： PROBLEM TO BE SOLVED: To avoid occurring of rupture in the welded part of a steel strip on a continuous processing line where the steel strip is welded to each other and processed. SOLUTION: When a joined part that is formed by welding together the front edge of a steel strip and the rear end of another one is subjected to grinding treatment in the continuous processing line, at least one of grinding speed and repeating times of a grinding pass for the joined part is determined based on the information about the kind and thickness of the steel strip so that the grinding is performed according to the determined speed and/or times.

2. 发明专利

JP2002294498A ELECTROLYSIS APPARATUS 失效
公开(公告)号：JP2002294498A
公开(公告)日：2002-10-09
申请号：JP2001094703
申请日：2001-03-29
申请人： KAWASAKI STEEL CO
发明人： MATSUI NORIYUKI , YAMAZAKI SHINJI , KIKUYAMA MASATAKE , SATAKE YOSHIHIRO
IPC分类号： C25F1/06 , C25F7/00
摘要： PROBLEM TO BE SOLVED: To improve an electrolysis apparatus for treating the surface of a steel plate with a coagulative electrolyte, in an electrolytic acid-cleaning apparatus for the steel plate. SOLUTION: The electrolysis apparatus comprises an electrolytic cell for immersing the steel plate in the coagulative electrolyte and electrolyzing the surface of the steel plate, a circulation tank for circulating and supplying the above coagulative electrolyte to the electrolytic cell, a piping arranged in the circulation tank, for heating the above coagulative electrolyte as needed, by passing a heating medium therein, and a piping arranged in the circulation tank, for cooling the above coagulative electrolyte as needed, by passing a cooling medium therein.

3. 发明专利

JP2000033412A METHOD FOR CONTROLLING SHAPE OF METALLIC BAND 失效
公开(公告)号：JP2000033412A
公开(公告)日：2000-02-02
申请号：JP20167398
申请日：1998-07-16
申请人： KAWASAKI STEEL CO
发明人： MATSUI NORIYUKI , KOHIRO YOSHITAKE , IKEDA MASAHARU , TSUZUKI SATOSHI , BABA YUKIHIRO
IPC分类号： B21B29/00 , B21B37/00 , B21B37/38
摘要： PROBLEM TO BE SOLVED: To provide a shape control method for a metallic band by which combined elongation is corrected with sufficient high accuracy in the capacity of an ordinary DDC. SOLUTION: In the shape control method of the metallic band in which the combined elongation of the metallic band 10 which is rolling with a multi roll mill having the divided back-up rolls 13-15 whose screw-down locations are changed with actuators is corrected by manipulating actuators in accordance with steepness deviation at each point in the width direction which is detected with a shape detector 2 provided on the outlet side of this rolling mill, the manipulated variable of the actuators are calculated so that the steepness deviations in the center part, quarter parts and end parts in the width direction are taken as within allowable ranges.

4. 发明专利

JP2001259542A BRUSH APPARATUS 失效
公开(公告)号：JP2001259542A
公开(公告)日：2001-09-25
申请号：JP2000080661
申请日：2000-03-22
申请人： KAWASAKI STEEL CO
发明人： MATSUI NORIYUKI , KASAI SATOSHI
IPC分类号： B08B1/04 , B21B45/06
摘要： PROBLEM TO BE SOLVED: To provide a brush apparatus unformizing the abrasion of a brush as a whole, extending the replacing cycle of the brush and enabling cost reduction in cleaning, polishing or the removal of scale. SOLUTION: The brush apparatus is equipped with rotary means 3 for rotating brushes 2 having an almost circular cross section in a circumferential direction (A-direction) and press means 4 for pressing the brushes 2 to an object M. The brushes 2 are formed into a ring shape. Ring rotating means 5 for rotating the brushes 2 in a ring peripheral direction (B-direction) are provided.

5. 发明专利

JP2000176521A METHOD FOR CONTROLLING COLD ROLLING OF METALLIC BELT 失效
公开(公告)号：JP2000176521A
公开(公告)日：2000-06-27
申请号：JP35157498
申请日：1998-12-10
申请人： KAWASAKI STEEL CO
发明人： MATSUI NORIYUKI , KOHIRO YOSHITAKE , IKEDA MASAHARU , TSUZUKI SATOSHI , BABA YUKIHIRO
IPC分类号： B21B37/18
摘要： PROBLEM TO BE SOLVED: To keep rolling load constant and to prevent change in shape due to rapid load variation by executing load control for outputting a specific variation to a screw-down location when the rolling load is varied, and stopping the load control and returning to thickness control when the operation of reduction or release is executed by operators. SOLUTION: Variable variation ΔS* given by the equation (in the equation, Mc is a mill constant, Qc is a plastic constant, α is a tuning rate and ΔF is a load deviation.) is outputted to the screw-down location. By using this control in a state where inlet-side tension is not sufficiently applied, a metallic belt can be rolled without generating the rapid load variation. Consequently, the reduction of area, breakage, or the like caused by the load variation are prevented and it is useful for improving the working rate of rolling equipment. Moreover, by operating at such a speed as the operators can stop the equipment, the expansion of damage by an accident or the like is prevented but chance of breaking the belt is extremely low, so high-speed rolling is enabled and it is useful for improvement of working efficiency. By changing a software simply, its effect is attained.

6. 发明专利

JPH11169933A METHOD FOR SHAPE CONTROL OF CLUSTER ROLLING MILL 失效
公开(公告)号：JPH11169933A
公开(公告)日：1999-06-29
申请号：JP33567097
申请日：1997-12-05
申请人： KAWASAKI STEEL CO
发明人： MATSUI NORIYUKI , KOHIRO YOSHITAKE , TSUZUKI SATOSHI , BABA YUKIHIRO , KAKIHARA SETSUO
IPC分类号： B21B37/00 , B21B37/38
摘要： PROBLEM TO BE SOLVED: To improve a defective shape of a rolling stock in the case of increasing/decreasing control of amount of crown of a back up roll in a shape control method by a cluster rolling mill. SOLUTION: While rolling, a feed back control of shape of rolling stock is executed by operating a roll bender of an intermediate roll based on the information from a shape detector. At a time T5 in the feed back control, in order to change the shape of the rolling stock to the direction of edge wave, a bender force F is gradually decreased. At the time T6 when the bender force F exceeds a lower lowest limit F12, a rolling down motion of the back up roll is executed and the amount of crown of the back up roll is gradually decreased. On the way in which the bender force F is restored from the lower lowest limit F12 to the lowest limit F11, at a time T7 a secondary mode deviation ΔA2 changes to a negative value and the rolling stock tends to cause wavy edges. At the time T7 when the secondary mode deviation ΔA2 changes to a negative value, the rolling down motion of the back up roll is stopped. Thereby, the rolling stock is prevented from becomming the wavy edges state, and the rolling stock changes shape into a flat state.

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