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11. 发明专利

JPH0237245B2 失效
公开(公告)号：JPH0237245B2
公开(公告)日：1990-08-23
申请号：JP8248582
申请日：1982-05-18
申请人： KOBE STEEL LTD
发明人： MORITA TOORU , KONISHI MASAMI , ASADA YUKIO , YOSHII KENTA , NAKADA TAKAMASA
IPC分类号： B21B37/22 , B21B1/26 , B21B37/00 , B21B37/16 , B21B37/18 , B21B37/20 , B21B41/10

13. 发明专利

JPH01224108A METHOD FOR CONTROLLING SPEED OF CONTINUOUS ROLLING MILL 失效
公开(公告)号：JPH01224108A
公开(公告)日：1989-09-07
申请号：JP5082988
申请日：1988-03-04
申请人： NIPPON STEEL CORP
发明人： TSUJI YUICHI , SHIBAO SHINJI , UENO SHINJI
IPC分类号： B21B37/48 , B21B37/00 , B21B37/18 , B21B37/20 , B21B37/50
摘要： PURPOSE:To improve the sheet passage and to improve the quality of sheet thickness and width by absorbing a loop amount accumulated for a period of time from a time when a stock is bitten by a stand to a starting time of roll peripheral speed control immediately after the bitting. CONSTITUTION:In the case the polarity of corrective output for roll speed is in a direction where loop generation between stands is restrained, a control gain value is changed in accordance with a generated loop amount in time series for a certain period of time from a control starting time to absorb a loop amount accumulated between stands for a very small time delay from a time when a stock is bitten by a stand to an immediately after control starting time and a roll peripheral speed correction amount is amplified.

15. 发明专利

JPS62267008A CONTROLLING METHOD FOR SIX HIGH MILL 失效
公开(公告)号：JPS62267008A
公开(公告)日：1987-11-19
申请号：JP11158086
申请日：1986-05-15
申请人： KAWASAKI STEEL CO
发明人： NARUSE YUTAKA , SHITOMI MAKOTO , NAOI TAKAYUKI , TESHIBA TOKO , HIROHATA KAZUHIRO
IPC分类号： B21B37/00 , B21B37/20 , B21B37/42
摘要： PURPOSE:To prevent the generation of a defective sheet thickness during roll shifting by continuously changing the mill constant of a roll force AGC in following up the shifting of the rolls to the position adjusted to meet the succeeding rolling width at the time of continuously rolling a differential width material. CONSTITUTION:The timing when the width changes is calculated by a computer 18 and intermediate rolls 4 are shifted to the position adjusted to meet the succeeding rolling width when a weld zone is detected by a sheet width detector 10 at the time of rolling a rolling material formed by connecting the rolling materials of different widths by welding with an HC mill. The position of the rolls 4 is kept detected by a shift position detector 16 and the mill constant is calculated to meet the change of the roll position by the computer 18 during this time. This constant is used for the roll force AGC. The off-gage in the non-stationary region during the shift of the rolls 4 is, therefore, eliminated and the generation of the defective sheet thickness during shifting is prevented.

16. 发明专利

JPS62263817A PLATE THICKNESS CONTROL METHOD FOR COLD TANDEM ROLLING MILL 失效
公开(公告)号：JPS62263817A
公开(公告)日：1987-11-16
申请号：JP10836286
申请日：1986-05-12
申请人： KAWASAKI STEEL CO
发明人： HIRAMITSU MASASHI
IPC分类号： B21B37/18 , B21B37/20
摘要： PURPOSE:To improve the plate thickness accuracy by detecting variations in temp. of a strip on the inlet side of a rolling mill, calculating variation correcting amounts of the deformation resistance against the variations in temp., and controlling plate thicknesses based on the calculated correcting amounts. CONSTITUTION:A thickness gage 8 for a steel strip 1, plate temp. thermometer 15, and deformation resistance variation controller 16 are installed on the inlet side of the 1st stand of a rolling mill. The thermometer 15 detects temp. variation amounts of the strip 1 and temp. variation amounts considering a transfer lag between the thermometer 15 and work rolls 2A and 2B are accurately calculated based on the prescribed equation. Then, a deformation resistance variation amount of the strip 1 is obtained based on a temp. variation amount and a draft position is corrected through a screw down device 7 when the temp. detection point of the strip 1 is just bitten by the rolls 2A and 2B. The final plate thickness accuracy is improved because a plate thickness is controlled with consideration for a deformation resistance variation due to a temp. variation.

20. 发明专利

JPS6026604B2 失效
公开(公告)号：JPS6026604B2
公开(公告)日：1985-06-25
申请号：JP9641079
申请日：1979-07-27
申请人： SUMITOMO METAL IND
发明人： TAKAHASHI RYOICHI
IPC分类号： B21B33/00 , B21B37/00 , B21B37/20 , B21B37/22 , B21B37/46 , B21B37/48 , H02P5/68

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