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1. 发明专利

JP2001353515A METHOD AND DEVICE FOR DEWATERING HIGH-TEMPERATURE STEEL SHEET 失效
公开(公告)号：JP2001353515A
公开(公告)日：2001-12-25
申请号：JP2000178429
申请日：2000-06-14
申请人： NIPPON KOKAN KK
发明人： KAMIOKA SATOSHI , FUJIBAYASHI TERUO , KAWANAKA TORU , MIYASATO TOSHIO , OKADA YUKIHIRO
IPC分类号： B21B45/02 , C21D1/00 , C21D9/52
摘要： PROBLEM TO BE SOLVED: To drain water which is retained on the upper surface of a steel sheet from the upper surface of the steel sheet. SOLUTION: A water jetting device 13 is arranged on the downstream side of an upper surface cooling device 1 and an air jetting device 14 is arranged on the downstream side of the water jetting device. On the jetting devices 13, 14, four nozzles 21 are respectively arrayed over the width direction of the line. The angle of the nozzle 21 is adjusted so that fluid is jetted toward the upper surface of the steel sheet 2, toward the upper surface cooling device 1 and toward an edge part 2a of the steel sheet 2. The retained water on the upper surface of the steel sheet 2 is discharged from the edge part 2a of the steel sheet 2 by allowing the water to be accompanied with the fluid jetted from the nozzle 21.

2. 发明专利

JP2002121616A METHOD AND DEVICE FOR DEWATERING HIGH TEMPERATURE PLATE TO BE COOLED 失效
公开(公告)号：JP2002121616A
公开(公告)日：2002-04-26
申请号：JP2000312487
申请日：2000-10-12
申请人： NIPPON KOKAN KK
发明人： MIYASATO TOSHIO , KAMIOKA SATOSHI , KAWANAKA TORU , OKADA YUKIHIRO
IPC分类号： B21B45/02 , C21D1/00 , C21D9/573
摘要： PROBLEM TO BE SOLVED: To remove water staying on the upper surface of a plate to be cooled. SOLUTION: A water jetting device 1 is disposed at the downstream side in the line advancing direction of a cooling device 3 and an air jetting device 4 is disposed at the further downstream side. In the jetting devices 3, 4, plural water nozzles 7 and air nozzles 8 are disposed in the line width direction. The angles of these nozzles 7, 8 are adjusted so as to inject the fluid materials toward the upper surface of the steel plate 2, toward the cooling device 1 and toward the edge part 2a at one side of the steel plate 2 from the nozzles 7, 8. Further, the arranging position of the nozzles 7, 8 is adjusted so as not to overlap the fluid materials jetted from respective nozzles 7, 8 on the upper surface of the steel plate 2. The water staying on the upper surface of the steel plate 2 is exhausted from the edge part 2a of the steel plate 2 accompanied by the fluid materials jetted from the nozzles 7, 8.

3. 发明专利

JPH09122758A METHOD AND EQUIPMENT FOR STRAIGHTENING SHAPE 失效
公开(公告)号：JPH09122758A
公开(公告)日：1997-05-13
申请号：JP28155095
申请日：1995-10-30
申请人： NIPPON KOKAN KK
发明人： FUJII YUKIO , KOMATSUBARA MINORU , TOMITA SHOGO , MIYASATO TOSHIO , WATANABE MAKOTO , OMORI KIYOO , TAKAGI KEIJI
IPC分类号： B21D3/05
摘要： PROBLEM TO BE SOLVED: To improve the straightening effect and the reducing effect of the residual stress by giving the slight rolling reduction function to a horizontal roller of a roller straightening machine, and straightening a work to be straightened through slight rolling reduction when the work is slightly reduced. SOLUTION: A work 20 to be straightened is straightened by a roller straightening machine 1. Rolls 3, 4 on the inlet side and rolls 10, 11 on the outlet side are provided with a roll pitch changing device so that the slight rolling reduction can be performed by moving an upper roll and a lower roll to approximately same position. Intermediate rolls 5-9 are located in a staggered manner. The rolls 3, 4, 10, 11 can be used in a staggered arrangement in a normal condition. When a work 20 to be straightened with large bend is straightened, the rolls 3, 4, 10, 11 are moved by the roll pitch changing device to set the upper and lower rolls opposite to each other to realize the arrangement of a slight rolling reduction mill. The large bend of the work 20 is straightened by the rolls 3, 4 on the inlet side, and further straightened by the repeated bend by the intermediate rolls 5-9 arranged in a staggered manner, and the whole work is straightened by the rolls 10, 11 on the outlet side.

4. 发明专利

JPH05131355A PROCESSING METHOD FOR TWO-DIMENSIONAL CERAMIC WING 失效
公开(公告)号：JPH05131355A
公开(公告)日：1993-05-28
申请号：JP29281591
申请日：1991-11-08
申请人： NIPPON KOKAN KK
发明人： MIYASATO TOSHIO
IPC分类号： B24B19/14
摘要： PURPOSE:To process the positive and negative pressure surfaces of a two dimensional wing by means of numerical control grinding using a diamond grinding stone based on an incremental value feed command. CONSTITUTION:Since an airfoil section can be ground based on the way of thinking identical to that for surface grinding, processing conditions suitable for the characteristics of hard and brittle ceramics can be selected, thereby it is possible to process the airfoil section by means of grinding, which has formerly been impossible.

5. 发明专利

JPH09108707A MANUFACTURING DEVICE OF T-STEEL 失效
公开(公告)号：JPH09108707A
公开(公告)日：1997-04-28
申请号：JP27250295
申请日：1995-10-20
申请人： NIPPON KOKAN KK
发明人： TOMITA SHOGO , MIYASATO TOSHIO , FUJITA YONEAKI , WATANABE MAKOTO , MORISANE TORU , KOMATSUBARA MINORU , FUJII YUKIO , OMORI KIYOO
IPC分类号： B21B15/00 , B21B1/08 , B21B1/092 , B21C37/00 , B21D3/05
摘要： PROBLEM TO BE SOLVED: To reduce the number of processes and the period of production so as to make a T-steel efficiently by decreasing residual stress of an H-steel, applying web cutting or preliminary working to it, correcting its shape vertically and horizontally, and thereby securing the post-cutting straightness of T-steel. SOLUTION: A light screw-down type universal rolling mill 10 removes residual stress while rolling down the root of the web of an H-steel 1 through the reduction by its vertical roll 12, and also cuts the web by the pre-working roll. A roller straightener 20, performing repeated bend and left/right bend by the upper and lower rolls while pinching the web and flange by the horizontal rolls 21, 22 and the vertical roll 23, cuts the web, straightens the T-steel thus cut to produce a cut T-steel. In addition, with the purpose of fully demonstrating this effect, the light screw-down type universal rolling mill 10 is equipped with a driving unit 15 and a reduction gear 16, as is the roller straightener 20 with a driving unit 25 and a reduction gear 26, so that both driving units 15, 25 are properly controlled.

6. 发明专利

JPH08337847A STEEL PIPE EXCELLENT IN BENDING WORKABILITY 失效
公开(公告)号：JPH08337847A
公开(公告)日：1996-12-24
申请号：JP14484895
申请日：1995-06-12
申请人： NIPPON KOKAN KK
发明人： MIYASATO TOSHIO , HAMANO HIDEMITSU , WAKASA ISAMU , TOYAMA KENICHI , SUZUKI KOJI
IPC分类号： C22C38/00 , C22C38/54
摘要： PURPOSE: To produce a steel pipe small in a flattening rate and an offsetting rate by limiting the content of N. CONSTITUTION: This steel pipe has a compsn. contg., by weight,

7. 发明专利

JPH08276206A ROLLING MILL AND ROLLING METHOD 失效
公开(公告)号：JPH08276206A
公开(公告)日：1996-10-22
申请号：JP26362495
申请日：1995-09-19
申请人： NIPPON KOKAN KK
发明人： MIYASATO TOSHIO , TOMITA SHOGO , YANAGIDA MASAHIRO , TANAKA TOSHITAKA , FUKUOKA KAZUYA
IPC分类号： B21B27/02 , B21B1/22 , B21B13/14 , B21B29/00 , B21B31/18 , B21B37/00 , B21B37/38
摘要： PURPOSE: To attain rolling mill and rolling method with the shape of the crown of a work roll so that preferable crown and shape of a rolling stock to be rolled can be attained in a multiple rolling mill with four stages or over, shifting upper and lower work rolls. CONSTITUTION: This must be a rolling mill equipped with at least backup rolls 4 and 5 and work rolls 2 and 3, whose backup rolls 4 and 5 are equipped with crowns symmetrical to the left and the right, having maximum diameters in the centers of roll barrel lengths, and whose work rolls 2 and 3 are equipped with the following crowns. (a) A maximum roll diameter is positioned in a position deviated from the center of a roll barrel length so that the crowns of upper and lower rolls are in the same shape and become in point symmetry each other to the center of the rolling mill. (b) A smoothly continuous curve is composed by the crown of the roll, and a roll diameter is monotonously decreased toward the left and the right ends of the roll from the position of the maximum roll diameter. (c) And, the curve is equipped with at least one inflection point or over on either one side of the left or the right or on both sides of them in distances from the position of the maximum roll diameter to the ends of the left and the right of the roll.

8. 发明专利

JPH04322960A GRINDING METHOD AND JIG FOR CERAMIC TURBINE NOZZLE 失效
公开(公告)号：JPH04322960A
公开(公告)日：1992-11-12
申请号：JP9390191
申请日：1991-04-24
申请人： NIPPON KOKAN KK
发明人： MIYASATO TOSHIO
IPC分类号： B24B19/14 , F01D9/02
摘要： PURPOSE:To uniformize positional accuracies between a blade and sidepiece of a nozzle segment by forming two grooves for housing both sidepieces of the nozzle segment, and installing a positioning part, locating a front edge of the blade, in a projection lying between both these grooves. CONSTITUTION:When a ceramic gas turbine nozzle being made up of arranging a nozzle segment 1, where a blade 2 and two sidepieces 3 holding this blade between are unified as one body, in the circumferential direction is ground, both these sidepieces 3 of the nozzle segment 1 are housed in two grooves 5 formed in a jig 4. A front edge of the blade 2 is positioned by a positioning part 9 installed in a projection 7 lying between these grooves 5 and 5, and a surface of the blade 2 is positioned by the support part 11. A contact surface between these nozzle segments themselves positioned and locked is ground and, what is more, both outer and inner circumferential diametral parts of the nozzle segment 1 are ground.

9. 发明专利

JPH0985343A METHOD AND EQUIPMENT FOR ROLLER-STRAIGHTENING WIDE FLANGE BEAM 失效
公开(公告)号：JPH0985343A
公开(公告)日：1997-03-31
申请号：JP24283595
申请日：1995-09-21
申请人： NIPPON KOKAN KK
发明人： TOMITA SHOGO , MIYASATO TOSHIO , FUJITA YONEAKI , WATANABE MAKOTO , MORISANE TORU , KOMATSUBARA MINORU
IPC分类号： B21D3/05
摘要： PROBLEM TO BE SOLVED: To provide the method and device for straightening a wide flange beam capable of straightening even the large wide flange beam of small web thickness. SOLUTION: Repeated straightening of bending is performed by rolling down a web of a wide flange beam 1 by horizontal rolls 10 which are alternately provided in the vertical direction along the advancing direction of the wide flange beam 1, each side face of the flange of the wide flange beam 1 is rolled down by vertical rolls 11, and the web of the wide flange beam 1 is pressed by opposite horizontal rolls 12 arranged opposite to the horizontal rolls 10. Localized contact of the horizontal rolls 10 with a fillet part of the wide flange beam 1 is prevented, and the contact distributed load is leveled. The change in the web height can be suppressed, and straightening without fillet cracking can be realized.

10. 发明专利

JPH08300040A STRAIGHTENING METHOD OF THICK STEEL PLATE 失效
公开(公告)号：JPH08300040A
公开(公告)日：1996-11-19
申请号：JP12742095
申请日：1995-04-28
申请人： NIPPON KOKAN KK
发明人： SUGITA SHINICHI , YANAGIDA MASAHIRO , TOMITA SHOGO , MIYASATO TOSHIO , ISHIOKA MUNEHIRO
IPC分类号： B21B45/02 , B21B1/38 , B21D1/00 , B21D1/05 , C21D8/02
摘要： PURPOSE: To obtain a hot straightening method to minimize restraightening rate in a desirable straightening method of hot rolled steel plate. CONSTITUTION: In executing hot straightening of the thick steel plate after hot rolling, straightening is started at the timing where an average temp. B in steel plate surface is in the range from A3 transformation start temp. to A1 transformation completion temp of the steel. Further, straightening can be started at the timing where an average temp. G in steel plate surface is turned roughly equal to A3 transformation start temp. or A1 transformation completion temp. of the steel. At this time, an average temp. in steel surface is can be either of an arithmetic average temp. of max temp. and min temp., a linear average temp. or an area average temp. in steel plate.

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