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1. 发明专利

JP2001170707A METHOD FOR GRINDING ROLLING ROLL AND ROLLING ROLL 失效
公开(公告)号：JP2001170707A
公开(公告)日：2001-06-26
申请号：JP35450399
申请日：1999-12-14
申请人： KAWASAKI STEEL CO
发明人： KIJIMA HIDEO , TATENO JUNICHI , KENMOCHI KAZUHITO , NAGAI HAJIME , SUNAMORI YASUMICHI
IPC分类号： B24B5/37 , B21B27/00 , B21B28/02
摘要： PROBLEM TO BE SOLVED: To provide a method for grinding a rolling roll by which a uniform cross ground mark without even the boundary line of the ground mark is simply and efficiently imparted to a part of a toll where a rolled stock having the maximum width to be rolled is threaded. SOLUTION: Using a grinding wheel the inside diameter of a hollow disk-like grindstone of which is taken as a value more than twice the quantity of the maximum offset of the rotary shaft of the grinding wheel and the sum of the outside diameter and inside diameter of the grinding wheel is taken as not more than the difference between the effective barrel length of the rolling roll and the maximum width of the rolled stock to be rolled with the rolling rolls, the cross ground mark is imparted to the rolling roll.

2. 发明专利

JP2000226616A PRODUCTION OF SILICON STEEL SHEET AND HOT ROLLED SHEET STOCK FOR SILICON STEEL SHEET 失效
公开(公告)号：JP2000226616A
公开(公告)日：2000-08-15
申请号：JP2513599
申请日：1999-02-02
申请人： KAWASAKI STEEL CO
发明人： HASHIMOTO SHU , NAGAI HAJIME , OGINO ATSUSHI , NISHIMURA KEIJI
IPC分类号： H01F1/16 , C21D8/12 , C21D9/46
摘要： PROBLEM TO BE SOLVED: To provide a producing method for obtaining a silicon steel sheet with a good shape free from an edge wave when a hot rolled steel strip is subjected to cold rolling after box annealing. SOLUTION: A silicon steel slab contg., by weight,

3. 发明专利

JP2000190005A COLD ROLLING METHOD FOR METAL PLATE SUPERIOR IN LUSTER 失效
公开(公告)号：JP2000190005A
公开(公告)日：2000-07-11
申请号：JP36825998
申请日：1998-12-24
申请人： KAWASAKI STEEL CO
发明人： KIJIMA HIDEO , KENMOCHI KAZUHITO , NAGAI HAJIME , KOHIRO YOSHITAKE , HOSHINO MASASHI
IPC分类号： B21B1/22 , B21B3/02 , B21B27/00 , B21B45/02
摘要： PROBLEM TO BE SOLVED: To conduct stable high-speed rolling without slipping or burning while maintaining superior luster by rolling one or more pass with cross-ground mill rolls with specific roughness in a specific diameter range of a reverse rolling mill while using rolling mill lubricant in a specific viscosity range. SOLUTION: When a metal plate is cold-rolled with a reverse rolling mill equipped with mill rolls, it is rolled at least one pass within a specified number of passes with mill rolls of 35-150 mm diameter which are cross-ground at the roughness Ra of 0.04-1.0 μm, using rolling mill lubricant of viscosity in the range of 5-50 cSt(40 deg.C). This make it possible to produce the metal plate with superior luster of 900 (Gs20 deg.) or higher glossiness, and realize stable high- speed rolling at 300 m/min or higher rolling velocity without slipping or burning while maintaining the glossiness. Grindings inclined by angles θ1 and θ2 respectively in clockwise and counterclockwise directions against the circumferential direction are mutually crossed.

4. 发明专利

JP2000140903A COLD TANDEM MILL FOR ROLLING METAL SHEET AND METHOD FOR COLD TANDEM ROLLING 失效
公开(公告)号：JP2000140903A
公开(公告)日：2000-05-23
申请号：JP31634298
申请日：1998-11-06
申请人： KAWASAKI STEEL CO
发明人： KIJIMA HIDEO , KENMOCHI KAZUHITO , SONOBE OSAMU , NAGAI HAJIME , SUNAMORI YASUMICHI
IPC分类号： B21B1/22 , B21B3/02 , B21B27/00 , B21B27/02
摘要： PROBLEM TO BE SOLVED: To roll and a metal sheet excellent in gloss at low cast by in-corporating a pair of upper and lower rolling rolls to which cross ground marks having ground marks which are inclined to the circumferential direction of the rolling roll and crossed with each other are imparted in one or more stands and making at least a pair of the upper and lower rolling rolls of the final stand of sintered hard alloy. SOLUTION: In the cross ground marks, the marks forming an inclined angle θ1 in a clockwise direction to the circumferential direction and ones forming an inclined angle θ2 in an counterclockwise direction are imparted to the surface so as to be crossed with each other. In (a) of the figure, the ground marks have the inclined angles θ1, θ2 which are respectively uniform and average values of the both are approximately same, (b) is the case where the inclined angles θ1, θ2 are respectively uniform and the average values of the both are made to differ and, in (c), the both are not ununiform. It is preferable to define the average values of the inclined angles as 5-85 deg. and the roughness of the ground mark as the range of 0.04-4.0 μm by the center-line average roughness Ra.

5. 发明专利

JPH10328713A COMPOSITE ROLL FOR COLD ROLLING 失效
公开(公告)号：JPH10328713A
公开(公告)日：1998-12-15
申请号：JP15947797
申请日：1997-06-17
申请人： KAWASAKI STEEL CO
发明人： SONOBE OSAMU , KANO HIROTAKA , KENMOCHI KAZUHITO , IRI MASATO , FUKUHARA AKIHIKO , NAGAI HAJIME
IPC分类号： B21B3/02 , B21B27/00 , B21B27/03 , B22F5/00 , C22C29/08
摘要： PROBLEM TO BE SOLVED: To enable the rolling of a stainless steel strip with satisfactory gloss on its surface without damaging rolls by regulating the ratio L/D of roll barrel length L to a roll diameter D to a specific range, regulating the Young's ratio of the external layer of the roll barrel to a specific value or over, and regulating the thickness of the external layer to a specific value or over to a roll radius. SOLUTION: The radio L/D of the roll barrel length L to a roll diameter D is set to the range of 2 to 10, the Young's ratio of the external layer of the roll barrel is set to 35000 kg/mm or over, and the thickness of the external layer is set to 3% or over of the roll radius. Also, by regulating the hardness of the external layer of the roll barrel to Shore hardness 97 or over, or Vickers hardness 940 or over, or Rockwell C scale hardness 68 or over, a change with lapse of time of the gloss on the surface is reduced. Further, by forming the external layer of the roll barrel with a sintered compact formed by a high temperature hydrostatic pressure, which is made of powder having deflection strength 130 kg/mm or over, further by making the external layer of a WC-Co base sintered super hard alloy whose Co content is 12 to 50 wt.%, rolls are prevented from being damaged.

6. 发明专利

JPH0899102A MANUFACTURE OF COLD ROLLED STAINLESS STEEL SHEET 失效
公开(公告)号：JPH0899102A
公开(公告)日：1996-04-16
申请号：JP23522994
申请日：1994-09-29
申请人： KAWASAKI STEEL CO
发明人： HOSHI YASUO , KENMOCHI KAZUHITO , ISOBE KUNIO , KIYONO YOSHIICHI , OKADA KAZUHITO , KAWASUMI EISUKE , NAGAI HAJIME
IPC分类号： B21B3/02 , B21B13/14 , B21B27/10 , C10M137/12 , C10N30/08 , C10N40/24
摘要： PURPOSE: To prevent the burning and embody a high production efficiency by supplying a specific rolling oil on the surface of a work roll in the state as it is, preiminarily rolling a stainless steel sheet, forming a coating film on the surface of the work and rolling the stainless steel sheet using that work roll. CONSTITUTION: In the case of a rolling oil contg. a compound expressed by a formula I, the forming effect of the coating film is insufficient when the addition is

7. 发明专利

JPH07265907A PRODUCTION OF STAINLESS COLD ROLLED STEEL STRIP 失效
公开(公告)号：JPH07265907A
公开(公告)日：1995-10-17
申请号：JP8274094
申请日：1994-03-30
申请人： KAWASAKI STEEL CO
发明人： NAGAHAMA TAKUYA , KENMOCHI KAZUHITO , ISOBE KUNIO , KIYONO YOSHIICHI , NAGAI HAJIME
IPC分类号： B21B3/02 , B21B1/22 , B21B27/00 , B21B27/02
摘要： PURPOSE:To improve the surface gloss of a steel strip in cold rolling stainless steel strip. CONSTITUTION:After a stainless hot rolled steel strip is annealed/pickled, at a cold tandem mill, it is taken L for a contact arc length of a roll bite of work roll and lambdaa for an average pitch of roughness in width direction of the surface at strip inlet side, rolling is executed by using the work roll in which a ground groove is extended on the surface of work roll in the direction of an angle phi satisfying the inequality 5 deg.>=phi>=tan (lambdaa/L) in the in the peripheral direction.

8. 发明专利

JPH07124603A MANUFACTURE OF STAINLESS COLD ROLLED TRIP 失效
公开(公告)号：JPH07124603A
公开(公告)日：1995-05-16
申请号：JP29250793
申请日：1993-10-29
申请人： KAWASAKI STEEL CO
发明人： KENMOCHI KAZUHITO , HOSHI YASUO , OKADA KAZUHITO , NAGAI HAJIME , KAKIHARA SETSUO
IPC分类号： B21B45/00 , B21B1/22 , B21B45/06
摘要： PURPOSE:To obtain an excellent surface gloss when a stain steel plate is cold rolled. CONSTITUTION:A stainless hot rolled steel plate is annealed, descaled as it is or mechanically, then, continuously the surface of the strip is grounded by rotary grinding tool of resin of fixed adhered abrasive grains and pickled. Then, a pair of upper and lower rolls are crossed mutually and rolled by an angle in relation of an expression determined by the contact arc length L of a roll bite and the average pitch of the roughness in the width direction of an inlet side strip surface.

9. 发明专利

JP2003164907A METHOD AND DEVICE FOR CONTROLLING TENSION IN TANDEM ROLLING 审中-公开
公开(公告)号：JP2003164907A
公开(公告)日：2003-06-10
申请号：JP2001361658
申请日：2001-11-27
申请人： KAWASAKI STEEL CO
发明人： ASANO KAZUYA , KOBORI TOSHIYUKI , KACHI TAKAYUKI , NAGAI HAJIME
IPC分类号： B21B1/28 , B21B37/48
摘要： PROBLEM TO BE SOLVED: To control the tension in tandem rolling without affecting the plate thickness of a rolling material, particularly even if a stand equipped with an electric reduction means is used. SOLUTION: The tension between the stands of the rolling material is controlled by manipulating the roll gap by providing the reduction speed instruction value from a tension control device to the reduction means equipped with a reduction speed control system. Multiple dispersed levels of the reduction speed instruction values are set. The level closest to the consecutive reduction speed instruction values calculated with the reduction control system is set as the standard level. The one-degree higher level from the standard level is set as the upper limit and the one-degree lower level as the lower limit. When the consecutive reduction speed instruction values are within the upper limit and the lower limit, the standard level is fed in the reduction speed control system as the dispersed reduction speed instruction values in order to control the reduction speed. When the consecutive reduction speed instruction values reach the upper limit or the lower limit, the upper limit or the lower limit is set as the new standard level. The one-degree higher level from the new standard level is set as the upper limit and the one-degree lower level as the lower limit to carry out the control in the same way. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2003136116A METHOD FOR CONTROLLING PLATE THICKNESS 审中-公开
公开(公告)号：JP2003136116A
公开(公告)日：2003-05-14
申请号：JP2001331155
申请日：2001-10-29
申请人： KAWASAKI STEEL CO
发明人： KACHI TAKAYUKI , KOBORI TOSHIYUKI , NAGAI HAJIME
IPC分类号： B21B37/18
摘要： PROBLEM TO BE SOLVED: To restrain plate thickness fluctuations in the longitudinal direction such as an uneven hardness in a steel strip rolled by cold-rolling mill. SOLUTION: The plate thickness fluctuations are controlled by compensating the tuning rate α by which a drafting position operating volume is calculated from a rolling load in accordance with a coefficient of correlation r between the rolling load or a drafting position correction volume and a plate thickness or a rolling stand space tensile force.

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