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1. 发明专利

JPS645603A METHOD FOR SKIN PASS ROLLING IN CONTINUOUS ANNEALING DEVICE 失效
公开(公告)号：JPS645603A
公开(公告)日：1989-01-10
申请号：JP16215587
申请日：1987-06-29
申请人： KAWASAKI STEEL CO
发明人： MOCHIZUKI SAKAE , IIDA YOSHIHIRO , SAMEJIMA ICHIRO
IPC分类号： B21B1/22 , B21B37/00 , B21B37/38 , B21B37/42
摘要： PURPOSE:To flat and uniformize a sheet shape over the total length in the longitudinal direction of a sheet stock by controlling a position of an intermediate roll in front of and behind a condition changing point in skin pass rolling for the sheet stock by an intermediate roll shifting type 6-high skin pass rolling mill. CONSTITUTION:When a steel strip 10 is transferred in the A direction and a changing point of skin pass rolling conditions passes through a 6-high skin pass rolling mill, a detector 24 previously detects the changing point together with a sheet width and a position computing element 26 momently recognizes a position of the point based on outputs from the detector 24. A preset computing element 30 previously set a shift start point of both intermediate rolls 16A, 16B based on a necessary period of time for shifting the rolls 16A, 16B, that is, considering a speed of the strip 10 and a distance to the mill. A region where a position of rolls 16 and bending forces are controlled is set in front of and behind the changing point to prepare a prescribed distance or time; at the time that the point reaches the region, the rolls 16A, 16B are concurrently started to shift. Positions of the rolls 16 are detected, a shape influence coefficient is calculated based on a rolling load for the strip 10, and a bending force is controlled in accordance with a necessary shape correction amount for the strip 10.

2. 发明专利

JPS6439549A FLAW DETECTING METHOD FOR FINE INCLUSIONS IN BAND MATERIAL 失效
公开(公告)号：JPS6439549A
公开(公告)日：1989-02-09
申请号：JP19715687
申请日：1987-08-06
申请人： KAWASAKI STEEL CO , KAWATETSU KEIRYOKI KK
发明人： IRITANI MASAO , FUKUTAKA YOSHIMI , SAMEJIMA ICHIRO , KAWAMURA KOICHI
IPC分类号： G01N29/04 , G01N29/28
摘要： PURPOSE:To detect the fine inclusions in a strip on an on-line basis in a relative simple process by providing a focus type ultrasonic wave probe at a specific position on a line where the strip is conveyed and making an ultrasonic wave incident through a sprayed liquid agent. CONSTITUTION:When the ultrasonic flaw detection of the fine inclusion of the strip 20 running on the line is performed, the focus type ultrasonic probe 24 is provided at the specific position on the line where the up-down direction of the strip 20 does not change, and a liquid agent which becomes acoustic coupling material and need not be removed independently on the line following the position, e.g. skin path liquid 41 is sprayed on the strip 20 at the position through a pump 42. The ultrasonic wave is made incident on the strip 20 from the probe 24 through the sprayed skin path liquid and a reflection echo from the strip 20 is received by the probe 24 through the skin path liquid. The output signal of the probe 24 which received the reflection echo is sent to a flaw detector 44 to detect the fine inclusions in the strip 20 and a marking control part 46 drives a marking device 28 to mark the strip 20.

3. 发明专利

JPS645605A METHOD FOR STRESS-RELIEF ROLLING IN CONTINUOUS ANNEALING DEVICE 失效
公开(公告)号：JPS645605A
公开(公告)日：1989-01-10
申请号：JP16259887
申请日：1987-06-30
申请人： KAWASAKI STEEL CO
发明人： MOCHIZUKI SAKAE , IIDA YOSHIHIRO , SAMEJIMA ICHIRO
IPC分类号： B21B1/22
摘要： PURPOSE:To prevent generation of bad appearance and shape defects in spite of response delay and variance in required time for position changing of intermediate rolls by controlling a position of intemediate rolls of a 6-high skin pass rolling mill by detecting a sheet width changing point in accordance with a size of rear side sheet width. CONSTITUTION:A welding point position computing element 22 previously sets timing to change a position of intermediate rolls 14A, 14B and to change rolling conditions such as setting of a rolling pressure. At the time of detecting a welding point of a steel sheet 10A by a detector 20, if a rear side sheet width is narrow, a shift of the rolls 14A, 14B is started at a point within a given distance from a point right under a rolling mill in the downstream side, if a rear side sheet width is large, a shift of the rolls 14A, 14B is completed by that point. And that, a position of the rolls 14A, 14B presetted by a preset computing element 30, a roll bending amount, and a drafting position are set to a prescribed value with the timing decided in the above description to prevent variations in shapes of the sheet 10A.

4. 发明专利

JP2000192151A SEAL ROLL DEVICE OF CONTINUOUS HEAT TREATMENT FURNACE AND SEALING METHOD THEREOF 失效
公开(公告)号：JP2000192151A
公开(公告)日：2000-07-11
申请号：JP29655899
申请日：1999-10-19
申请人： KAWASAKI STEEL CO
发明人： UENO NAOTO , IIDA YOSHIHIRO , SAMEJIMA ICHIRO
IPC分类号： C21D1/26 , C21D1/74 , C21D9/56
摘要： PROBLEM TO BE SOLVED: To improve the sealing performance in a continuous annealing furnace. SOLUTION: A seal roll device for holding mutual interval between heat treatment zones in gastight state in the continuous heat treatment furnace having a plurality of heat treatment zones continuously heating and cooling a strip material, is provided with at least one pair of rotary-driving type seal rolls oppositely disposed with gaps on the front and the back surfaces of the strip material and seal chamber formed with partition walls disposed at the inlet side and the outlet side of these seal rolls and having opening parts for passing through the strip material. The seal roll has the inner part cooling structure for cooling by always passing cooling water in the inner part of the roll.

5. 发明专利

JPS6448603A METHOD FOR SKIN PASS ROLLING IN CONTINUOUS MANUFACTURING LINE 失效
公开(公告)号：JPS6448603A
公开(公告)日：1989-02-23
申请号：JP20362787
申请日：1987-08-17
申请人： KAWASAKI STEEL CO
发明人： MOCHIZUKI SAKAE , SAMEJIMA ICHIRO
IPC分类号： B21B1/22
摘要： PURPOSE:To uniformize the wear of work rolls and to also uniformize the surface roughness of a steel strip by skin pass rolling a preceding steel strip with the strip moved in the width direction by at least a moving amount being equal to a width difference between the preceding and succeeding strips at the case that the succeeding strip is wider than the preceding strip. CONSTITUTION:At the time of skin pass rolling of steel strips whose width are different, respective moving amounts of respective strips in the width direction are calculated based on a passage schedule of the strips. Then, in passage, a preset computer 6 calculates momentary moving target values based on length measuring pulse signals of a pulse generator 9 and inputs calculated values to a steering controller 5C. The controller 5C actuates a steering device 5A based on signals of a strip position detector 5B so that a steel strip 10 has a moving target value at the outlet side of the steering device 5A. The strip 10 is moved by an amount larger than a width difference in the width direction and is subjected to skin pass rolling. Hence, wear in the width direction of work rolls 1A, 1B is uniformized.

6. 发明专利

JPS63140717A METHOD FOR CONTROLLING SHAPE IN COLD ROLLING 失效
公开(公告)号：JPS63140717A
公开(公告)日：1988-06-13
申请号：JP28767986
申请日：1986-12-04
申请人： KAWASAKI STEEL CO
发明人： FUJIWARA SHUNJI , UENO HIROAKI , SAMEJIMA ICHIRO , HAMAISHI MASAHIRO
IPC分类号： B21B37/38 , B21B37/00
摘要： PURPOSE:To improve a shape at the tip part of a succeeding plate at the time when the kind of steel is changed by finding the set value of a bender pressure by a specific equation from a deviation value in the work roll benders at a work side and driving side of a final stand and a wedge amt. prior to rolling. CONSTITUTION:In the cold rolling mill enabling to set a bender pressure independently at a work side and driving side respectively, the respective set value of a bender pressure at a work side and driving side is calculated with the equation Pw=PB+1/2Pd, PD=PB+1/2Pd, PdPB{mXPd +nXf(td)}, Pd =Pw -PD , td=tw-tD from the deviation of the result value of the work roll benders at the work side and driving side of the final stand and the wedge amt. of the plate thickness prior to the rolling of a stock to be rolled [whereas, Pw, PD: bender pressures set value at work side and driving side, Pw, PD: bender pressures set value at work side and driving side, PB: the mean of set values, Pd; Difference in set values, Pd ; Difference in the results values of the bender pressure of the preceding material, pw , PD ; the result value of the bender pressure of the preceding material, td; the wedge amt. of the plate thickness prior to rolling, tw, td; the plate edge thickness prior to rolling and (m), (n); constant]. This set value is preset at the changing time of the steel kind and dimension of the stock to be rolled.

7. 发明专利

JPH11335744A CONTINUOUS HEAT TREATMENT FURNACE AND METHOD FOR CONTROLLING ATMOSPHERE IN CONTINUOUS HEAT TREATMENT FURNACE AND COOLING METHOD THEREOF 失效
公开(公告)号：JPH11335744A
公开(公告)日：1999-12-07
申请号：JP5659899
申请日：1999-03-04
申请人： KAWASAKI STEEL CO
发明人： UENO NAOTO , IIDA YOSHIHIRO , SAMEJIMA ICHIRO
IPC分类号： C21D1/74 , C21D1/76 , C21D9/56 , C21D9/573
摘要： PROBLEM TO BE SOLVED: To provide a continuous heat treatment furnace in which atmospheric gas in a gas-jet cooling system rapid cooling zone and atmospheric gas in an adjoining furnace zone with the rapid cooling zone (heating zone and cooling zone, etc.), is prevented from being mixed by a simple means, and to provide a control method of the atmospheric gas in the furnace by which nitriding is prevented. SOLUTION: One zone except the first and the last zone among plural furnace zones is the rapid cooling zone 11, in which a material is rapidly cooled by blasting the atmospheric gas. As atmospheric gas sealing means, a roll sealing camber 3 partitioned with a first and a second roll seal devices 4A and 4B in the upstream side in the inlet part and a third roll seal device 4C in the outlet part are provided. In the continuous heat treatment furnace, the inlet part of the first roll seal device and the outlet part of the third roll seal device are connected and/or he roll seal chamber and the upmost-stream part 6 in the rapid cooling zone are connected, and the hydrogen concn. in the furnace is controlled to >=10% in the rapid cooling zone and

8. 发明专利

JP2541989B2 失效
公开(公告)号：JP2541989B2
公开(公告)日：1996-10-09
申请号：JP16215587
申请日：1987-06-29
申请人： KAWASAKI STEEL CO
发明人： MOCHIZUKI SAKAE , IIDA YOSHIHIRO , SAMEJIMA ICHIRO
IPC分类号： B21B1/22 , B21B37/00 , B21B37/38 , B21B37/42

9. 发明专利

JPH01162728A METHOD FOR COOLING METALLIC STRIP 失效
公开(公告)号：JPH01162728A
公开(公告)日：1989-06-27
申请号：JP32007987
申请日：1987-12-19
申请人： KAWASAKI STEEL CO , MITSUBISHI HEAVY IND LTD
发明人： MOCHIZUKI SAKAE , IIDA YOSHIHIRO , SAMEJIMA ICHIRO , MIHARA KAZUMASA , MAKIHARA KATSUMI
IPC分类号： C21D9/573 , B21B45/02
摘要： PURPOSE:To enable the cooling of a strip without generating a shape defect and material defect by detecting the temp. distribution in the transverse direction of the strip on the outlet side of a cooling roll group and controlling the suction pressure of cooling rolls in accordance with the temp. difference thereof. CONSTITUTION:The temp. distribution in the transverse direction of the metallic strip 1 is detected by a temp. profile gage 6 provided on the outlet side of the adsorption type cooling roll group 2. A control operator 8 calculates the temp. difference in the transverse direction of the metallic strip 1 by this signal and decides the need for suction of respective blowers 3 in accordance with the equation I. A suction pressure (p) and the rotating speeds of the blowers 3 to obtain the suction pressure (p) are calculated by the equation II (h is a sheet thickness mm) and are transmitted to a motor controller 4 when the suction is needed. Furthermore, feedback control is executed in accordance with the signal from a pressure gage 5 to control the suction pressure of the cooling rolls 2 to the prescribed pressure.

10. 发明专利

JPS6310003A METHOD AND APPARATUS FOR CORRECTING TEMPER ROLLING SHAPE OF COLD ROLLED STEEL STRIP 失效
公开(公告)号：JPS6310003A
公开(公告)日：1988-01-16
申请号：JP15360586
申请日：1986-06-30
申请人： KAWASAKI STEEL CO
发明人： SAMEJIMA ICHIRO , EGUCHI KOJIRO
IPC分类号： B21B1/22
摘要： PURPOSE:To improve the efficiency of equipment and to reduce initial and running costs by pinching a steel strip by means of rolling rolls of a temper rolling stand to exert tension to the steel strip and winding the steel strip around correcting rolls. CONSTITUTION:The speeds of work rolls of a 1st stand 14 and a 2nd stand 16 are controlled to exert the tension necessary for correcting the shape to the strip 10 between the stands 14 and 16. The camber of the strip 10 is corrected by adjusting the height of auxiliary rolls of 20-300mm diameter installed to the final stand 16. Since the rolling mill and the correcting machine can be integrated by the device constituted in the above-mentioned manner, the initial cost is reduced.

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