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1. 发明专利

JPH04313406A COLD ROLLING METHOD FOR THIN STEEL SHEET 失效
公开(公告)号：JPH04313406A
公开(公告)日：1992-11-05
申请号：JP10356891
申请日：1991-04-10
申请人： NIPPON STEEL CORP
发明人： INOUE TADAATSU , NAWATA YASUTAKA , KAWAMOTO TAKAHARU , SHIOZAWA SHUICHI
IPC分类号： B21B1/22 , B21B27/00 , B21B28/04 , B23K26/00
摘要： PURPOSE:To keep roll roughness and to improve wear resistance by executing laser beam machining on the surface of a roll of an intermediate stand of a tandem rolling mill and giving laser dull-worked pattern on a thin steel sheet regarding the cold rolling of the thin steel sheet. CONSTITUTION:A cold rolling method for the sheet is characterized as follows. At the time of rolling the thin steel sheet, a laser beam oscillator 6 to radiate the laser beam on the surface of the roll of the intermediate stand of the tandem rolling mill is provided and through an optical fiber 7, laser beam is emitted on the surface of a work roll 3 from an outgoing port 8 and moved in parallel with the shaft direction with respect to the roll rotating during rolling, a laser beam dull-machining is executed continuously and uniformly and the laser beam dull-worked pattern has holes having a 50-200mu external diameter D, 5-10mu depth(d) arranged regularly at the intervals of 1.5D-2.5D.

2. 发明专利

JPH0494805A CONTROLLER FOR STRIP METAL MILL 失效
公开(公告)号：JPH0494805A
公开(公告)日：1992-03-26
申请号：JP21141490
申请日：1990-08-09
申请人： NIPPON STEEL CORP
发明人： INOUE TADAATSU , HAMAMOTO YASUO , YAMASHITA TATSUYA , KITANO SHINICHI
IPC分类号： B21B37/00 , B21B37/68
摘要： PURPOSE:To prevent meandering of a strip metal by measuring a tensile difference in the width direction of strip metal on the outlet side of a rolling mill with a controller for strip metal mill and increasing or releasing the drawing down of the rolling mill. CONSTITUTION:Tension meter rolls 3-1, 3-2 with which a tension in the width direction of the strip metal 1 is detected are provided on the outlet and inlet sides of the rolling mill 2. A FF control part with which the difference of tension value in the width direction that is measured from the inlet side is fetched, difference between that and the last is determined, that difference value is tracked to the rolling mill and a FB control part with which the difference of tension value from the outlet side is fetched are provided. In this way, the meandering quantity of strip metal can be drastically restrained smaller and addition of excellent control property is enabled.

3. 发明专利

JPS56158218A ENTRANCE GUIDE FOR ROLLING MILL 失效
公开(公告)号：JPS56158218A
公开(公告)日：1981-12-05
申请号：JP5858880
申请日：1980-05-06
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： SHIGEO KOUJI , INOUE TADAATSU , YOSHIMI HIROSHI , CHINBE HIROSHI
IPC分类号： B21B39/14 , B21B39/16
摘要： PURPOSE:To surely, easily adjust the shifting of upper and lower push blocks and a side guide roller, by installing a gear transmission and a spline shaft in a driving system. CONSTITUTION:When upper and lower push blocks and a side guide roller are to be controlledly shifted in the direction of breadth correspondingly to a variation in sheet breadth, a spline shaft 22 is rotated by a driving source through an intermediate shaft, a flexible shaft 25 and a bevel gear 24, and a screw shaft 14 is rotated by a gear transmission comprising a worm 19 and a worm wheel 20. For instance, if the breadth is to be narrowed, the nuts on both sides are permitted to mutually approach by a rotation of a one-way screw shaft 14; at the same time, side guide rollers on both sides also mutually approach. This motion of a lower frame is at once transmitted by a guide plate and a guide blcok to an upper frame, and hereby, the upper push block is synchronously shifted.

4. 发明专利

JPS5647516A PREVENTING METHOD FOR GRAPHITIZATION OF COLD ROLLED STEEL PLATE SURFACE 失效
公开(公告)号：JPS5647516A
公开(公告)日：1981-04-30
申请号：JP12423479
申请日：1979-09-28
申请人： NIPPON STEEL CORP
发明人： KITAJIMA AKIYUKI , INOUE TADAATSU , MIYAZAKI RITSUSHI , YOSHINARI KAZUHIKO
IPC分类号： C21D1/26 , C21D9/46 , C23F17/00 , C23G1/08 , C23G1/36
摘要： PURPOSE:To prevent precipitating of graphite during annealing process of a cold rolled steel plate by limiting to a specified value or less trivalent ferric ions in the recovered pickling liquid in the process of pickling a hot rolled steel plate. CONSTITUTION:A hot rolled steel plate, or a base material for a cold rolled steel plate is pickled using partly or totally recovered pickling solution. In this process, reducing trivalent ferric ions to 5g/l or less prevents the production of graphite to be produced by annealing. To reduce the concentration of trivalent ferric ions, an electric dust collector is added to the recovering apparatus. Thus, the hydrochloric acid pickling waste liquid containing ferric chloride which is produced in the pickling tank 1 is decomposed into hydrochloric acid and ferric oxide by a spray roasting furnace 2 so that ferric oxide of about 70% is removed. About 15% of ferric oxide is removed by a cyclon 4 and the remaining ferric oxide is removed by a dry type electric dust precipitator 6. This reduces ferric ion concentration to 5g/l or less which is recovered in the absorbing column 8 thereby allowing its reuse after returning it to the pickling tank 1.

5. 发明专利

JPS52141463A METHOD OF CONTROLLING THICKNESS AND FORM OF PLATE IN ROLLING OF METAL 失效
公开(公告)号：JPS52141463A
公开(公告)日：1977-11-25
申请号：JP5879376
申请日：1976-05-21
申请人： NIPPON STEEL CORP
发明人： INOUE TADAATSU , NAGANUMA YOUICHI , MIYATAKE OSAMU
IPC分类号： B21B37/38 , B21B37/00 , B21B37/18

6. 发明专利

JPH04333309A STEEL SHEET FOR PAINTING HAVING EXCELLENT PAINTING BRIGHTNESS 失效
公开(公告)号：JPH04333309A
公开(公告)日：1992-11-20
申请号：JP13022591
申请日：1991-05-07
申请人： NIPPON STEEL CORP
发明人： INOUE TADAATSU , HAMAMOTO YASUO , NAWATA YASUTAKA , KAWAMOTO TAKAHARU , SHIOZAWA SHUICHI
IPC分类号： B21B1/22 , B21B27/00 , B21B27/02 , B23K26/352
摘要： PURPOSE:To provide the steel sheet for painting which is greatly improved in high brightness after painting by regulating the surface roughness patterns of the steel sheet. CONSTITUTION:This steel sheet for painting which has the excellent painting brightness is formed by providing many microrecessed parts having circular, elliptical and polygonal or other shapes on the surface of the steel sheet. The shapes of these recessed parts are so determined that the diameter d satisfies a range of 50 to 200mum, the depth h of the recessed parts 2 to 16mum, and the volume of the recessed parts 1X10 to 1X10 mum range. The center-to-center distance (p1) between the adjacent recessed parts in a rolling direction is specified to 1.5 to 2.5d and the center-to-center distance (p2) between the arrays of the rolling direction arrays to 1.5 to 2.5d. The cold rolled steel sheet for painting having the high brightness after painting and having a pressing property in combination therewith is produced. The roll life is greatly improved by controlling the shapes of chromium projections.

7. 发明专利

JPH0421740A SURFACE ROUGHENED ROLL FOR COLD ROLLING 失效
公开(公告)号：JPH0421740A
公开(公告)日：1992-01-24
申请号：JP12113190
申请日：1990-05-14
申请人： MITSUBISHI STEEL MFG , NIPPON STEEL CORP
发明人： SAKASHITA SHUICHI , TAKEHARA IWANE , TANAKA MARECHIKA , HARA YOSHIO , INOUE TADAATSU , HAMAMOTO YASUO , KAWAMOTO TAKAHARU
IPC分类号： B21B27/00 , B21B27/02 , C22C38/00 , C22C38/24
摘要： PURPOSE:To manufacture a surface roughened roll for cold rolling excellent in hardness and wear resistance by manufacturing a roll of a steel having a specified compsn. in which the content of Mo and V is prescribed. CONSTITUTION:A roll having a compsn. contg., by weight, 0.5 to =2 kinds among

8. 发明专利

JPH03231850A MANUFACTURE OF VIBRATION DAMPING STEEL SHEET 失效
公开(公告)号：JPH03231850A
公开(公告)日：1991-10-15
申请号：JP2880890
申请日：1990-02-08
申请人： NIPPON STEEL CORP
发明人： HAMAMOTO YASUO , TAKEDA AKIYOSHI , INOUE TADAATSU
IPC分类号： B32B15/08 , B32B37/24 , B32B38/00
摘要： PURPOSE:To remarkably lessen the change of temperature applied to steel sheet and keep the thickness of resin layer constant by a method wherein liquid thermosetting resin adhesive is applied through a coater onto the upper side of the thermosetting resin layer of thin steel sheet and, after that, the resultant thin steel sheet and another thin steel sheet are continuously and overlappingly fixed to each other with pressure rollers and, after being passed through a drying oven, taken up continuously. CONSTITUTION:Thermosetting resin is applied in advance to either one of both the sides of each of thin steel sheets 1 and 2 by the thickness of 20 - 50 mum. Next, the thin steel sheet 1 is continuously passed through a production equipment under the condition that its thermosetting resin layer faces downwards, while the thin steel sheet 2 is also passed under the condition that its thermosetting resin layer faces upwards. Liquid thermosetting resin adhesive 4 is applied through a coater 5 onto the upper side of the thermosetting resin layer 3 of the thin steel sheet 2. After that, the thin steel sheets 1 and 2 are continuously and overlappingly fixed to each other with pressure rollers 6 and taken up continuously through a drying oven 7 so as to obtain the desired vibration damping steel sheet.

9. 发明专利

JPS5542144A SHAPE CONTROL METHOD OF STRIP 失效
公开(公告)号：JPS5542144A
公开(公告)日：1980-03-25
申请号：JP11495678
申请日：1978-09-19
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： NAGANUMA YOUICHI , INOUE TADAATSU , BABA KANJI , OOKAI HARUTOSHI , SHIMIZU ITSUO
IPC分类号： B21B13/02 , B21B27/02 , B21B37/00 , B21B37/42
摘要： PURPOSE:To obtain sufficient control performance against complicated shape defects in a simple control system, by finding the deviation between target value and detected value of symmetric and asymmetric parameters, and adjusting the operation end by comparing the evaluated values obtained from said two values, target value and estimated value. CONSTITUTION:A shape pattern signal of a plate 1 in the breadthwise direction sent from a shape detecting device 31 at the exit side of a rolling mill possessing intermediate rolls movable in the axial direction is divided into two parameters, symmetric and asymmetric, by a recognition device 32. The deviation between the detected value and the target value is obtained in a device 34, and a device 5 determines the evaluation value by evaluation function from said both values of symmetric components. Estimating the shape change in the case of varying the set point, an estimated value is obtained, and the evaluation is determined from this estimated value and the target value, and is compared with said estimated value to set and correct the intermediate roll position and roll bending force. Processing the asymmetric components similarly, the screw-down position difference between the operation side and driving side, rool bending force difference, or intermediate roll position difference can be set and corrected. Repeating such operations, the shape control is achieved.

10. 发明专利

JPS5519401A EVALUATION METHOD OF STRIP FORM 失效
公开(公告)号：JPS5519401A
公开(公告)日：1980-02-12
申请号：JP7317878
申请日：1978-06-19
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： NAGANUMA YOUICHI , INOUE TADAATSU , BABA KANJI , OOMI HARUTOSHI , MOROOKA YASUO
IPC分类号： B21B37/28 , B21B37/00 , B21B38/02 , G01B21/20
摘要： PURPOSE:To obtain evaluation value for approval or rejection of forms permitting easy making of mathematical model for control and capable of controlling the forms accurately, by processing the signals of coefficients of each term of the fourth degree power series expressing the form pattern in the plate breadthwise direction. CONSTITUTION:N pieces of detecting ends 2 from the center 0 to each end in the plate breadthwise direction X detect the elongation rate in each point or tension distribution, and issue form signals. The axis of ordinates of the form signals represents the magnitude of elongation rate y (x), and the position Xi at i-th detecting end is indicated as i/N in an arithmetic unit 5. Regarding this value as an independent variable, the form pattern is assumed as formula 1, and the coefficients of each term are calculated in a recognition part 8 from y (Xi) and the value g (Xi) by th formula according to the method of least squares of the selected points. Further, in a linear transformation part 9, the formula 1 is divided into component formulae 2,3 depending on whether or not symmetrical with respect to the center of plate, and the difference in elongation rate between the center of plate and each end, and the difference in elongation rate between the plate breadth position and center giving extreme values equally to ys, yn are expressed by parameters lambda2' lambda4' lambda1' lambda3 and are calculated by formulae 4,5. These values are compared with the target values recorded in a setting part 11 in an arithmetic unit 10, and the deviation is inputted into an evaluation operating part 12.

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