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11. 发明专利

JPS61262428A ACCELERATING COOLING METHOD FOR THICK STEEL PLATE 失效
公开(公告)号：JPS61262428A
公开(公告)日：1986-11-20
申请号：JP10428585
申请日：1985-05-15
申请人： KOBE STEEL LTD
发明人： KAJI HARUO , AKIYAMA KENSHO , IWAI KIYOSHI , TAKAHASHI IZUO , OBANYA YOSHIKAZU , HIGUCHI KOICHI , OTOMO AKINORI
IPC分类号： B21D1/00 , B21B1/38 , B21D1/05
摘要： PURPOSE:To prevent the generation of a lateral bending in a bar cutting, etc. by measuring the surface temp. distribution of a thick steel plate and by making the straightening at the time when the difference in the maximum value and minimum value in the temp. distribution curve in the plate width direction becomes at the prescribed value the final straightening in the on-line straightening stage. CONSTITUTION:The surface temp. distribution of a thick steel plate is measured in the correction stage after accelerating cooling in producing the thick steel plate by straightening with on line after is accelerating cooling after its hot rolling or hot straightening. The straightening at the time when the difference in the maximum value and minimum value becomes less than 10 deg.C in the temp. distribution curve in the plate width direction is made the final straightening in the on line straightening stage. The plate shape of the steel plate thus becomes good and also the generation of a lateral bending can extremely be reduced even by performing a bar cutting of a bar cut cutting, etc.

12. 发明专利

JPS6141724A Online cooling method of thick steel plate 失效
标题翻译：厚钢板在线冷却方法
公开(公告)号：JPS6141724A
公开(公告)日：1986-02-28
申请号：JP16372484
申请日：1984-08-02
申请人： Kobe Steel Ltd
发明人： NAKAO MASAKAZU , TAKATSUKA KORO , OTOMO AKINORI , TANAKA TAKESHI , TAKAHASHI IZUO , FUKUMITSU HIDEKATSU , OOBANYA YOSHIKAZU
IPC分类号： B21B45/02 , C21D9/52 , C21D9/573
CPC分类号： C21D9/573
摘要： PURPOSE:To execute controlled cooling and direct hardening with a simple cooling installation without generating cooling strain to a thick steel plate which is subjected to finish rolling in the stage of cooling said steel plate with water from the top and bottom surfaces while conveying the steel plate with conveying table rollers by forming the installation in such a manner that the thick steel plate can be restrained between the upper rollers and the table rollers. CONSTITUTION:The top surface of the thick steel plate which is subjected to finish rolling to >=25mm. thickness is cooled with the cooling water radiated from pipe nozzles 10, 11 and the bottom surface is cooled with the cooling water radiated from the spray nozzles 13 of a header 12 between the conveying table rollers 7 in the lower part of a pass line 6 while said plate is conveyed at a specified speed on the rollers 7. The steel plate is so quickly cooled that the cooling stop temp. thereof is about =500 deg.C and the cooling rate at the center in the thickness direction attains average >=10 deg.C/sec between 500-800 deg.C. The steel plate in this case is restrained between the rollers 7 by lowering the upper rollers 19 to prevent the generation of the cooling strain as a result of the quick cooling in the transformation temp. region. Both installations for the controlled quick cooling and the hardening by quick cooling are not reqired with the above-mentioned device and the common use of the same installation for both cooling is made possible.
摘要翻译：目的：通过简单的冷却装置执行受控制的冷却和直接硬化，而不会在从顶部和底部表面用水冷却所述钢板的阶段中进行精轧的厚钢板产生冷却应变，同时输送钢板通过以这样的方式形成设备的输送台辊，即可以将厚钢板限制在上辊和台辊之间。构成：经过精轧至> = 25mm的厚钢板的顶面。厚度随冷却水被从管嘴10,11辐射而冷却，底面被冷却水冷却，冷却水从通过线6的下部的输送台辊7之间的集管12的喷嘴13辐射，同时所述板以特定速度在辊7上输送。钢板被如此迅速地冷却，使得冷却停止温度。约为500℃或> 500℃，厚度方向中心的冷却速度在500-800℃之间达到> 10℃/秒。这种情况下的钢板通过下降上辊19而被限制在辊7之间，以防止由于转变温度中的快速冷却而产生冷却应变。地区。用于受控快速冷却和通过快速冷却进行硬化的两种装置都不符合上述装置，并且通常使用相同的安装来实现冷却。

13. 发明专利

JPS60121029A MANUFACTURE OF CIRCULAR PLATE 失效
公开(公告)号：JPS60121029A
公开(公告)日：1985-06-28
申请号：JP22944783
申请日：1983-12-05
申请人： KOBE STEEL LTD
发明人： OONISHI YOSHITOSHI , TAKAHASHI IZUO , IBATA HARUHIRO
IPC分类号： B21J5/00 , B21K1/02
摘要： PURPOSE:To obtain an economical circular plate devoid of anisotropy qualitatively and dimensionally by rolling a flat circular plate obtained by forging and pressing an ingot of metal of spherical or columnar form etc. changing the direction of rolling successively. CONSTITUTION:An ingot S of metal cast to spherical form (or columnar form) is placed on an anvil 2 and worked by a press 1 to a flat circular plate 13. In this case, diameter D0 of the ingot S of metal is determined by a formula (alpha: yield rate, D: diameter of circular plate product, h: thickness of circular plate product). Then, the circular plate 13 is rolled by a press R in the direction of an arrow 12 rotating the circular plate 13 every one pass from the direction of rolling shown by an arrow 11 by an angle theta. Thus, a product of circular plate is obtained by repeating rolling changing the direction of rolling successively by rotating the circular plate 13 little by little.

14. 发明专利

JPH0480975B2 失效
公开(公告)号：JPH0480975B2
公开(公告)日：1992-12-21
申请号：JP18562285
申请日：1985-08-22
申请人： KOBE STEEL LTD
发明人： TAKATSUKA KORO , OOTOMO AKINORI , TAKAHASHI IZUO , OOBANYA YOSHIKAZU , KITAMURA MITSUO
IPC分类号： B21B45/02 , B21B37/00 , B21B37/74 , B21B37/76 , C21D9/573 , C21D11/00

15. 发明专利

JPH048128B2 失效
公开(公告)号：JPH048128B2
公开(公告)日：1992-02-14
申请号：JP29896585
申请日：1985-12-27
申请人： KOBE STEEL LTD
发明人： TAKAHASHI IZUO , OOBANYA YOSHIKAZU , OOE KENICHI , KISHIMOTO YOSHIISA , IWAI KYOSHI , HIGUCHI KOICHI
IPC分类号： B23D36/00 , B21B15/00 , B21C51/00

16. 发明专利

JPS62289315A COOLING DEVICE FOR HIGH TEMPERATURE STEEL PLATE 失效
公开(公告)号：JPS62289315A
公开(公告)日：1987-12-16
申请号：JP13345286
申请日：1986-06-09
申请人： KOBE STEEL LTD
发明人： TAKAHASHI IZUO , OBANYA YOSHIKAZU , FUKUMITSU HIDEKATSU , TANAKA SHOHEI , FUJII KEIICHI , KISHIMOTO YOSHIISA , OTOMO AKINORI , TAKATSUKA KORO , AKIYAMA KENSHO
IPC分类号： C21D1/00 , B21B45/02 , C21D9/52
摘要： PURPOSE:To separate a turbulent water, to cool uniformly on the width direction of the upper face and the upper and lower faces of a steel plate and to obtain the steel plate having good flatness by installing a guiding plate between water cutting rolls of a slit jet nozzle. CONSTITUTION:The jet injected from the openings 6, 6 of slit jet nozzles 4, 4 is passed through with abutting flowing along water flows 11, 11 to a steel plate 1 between the inductive plates 10, 10 provided at a fixed space between the nozzles 4, 4 and rolls 2, 5 and the front and back faces of the steel plate 1. The turbulent water flows 7, 7 caused by being shut off by the rolls 2, 5 is led to the upper face of the inductive plates 10, 10(to the lower face of the plate 10 in the case of the lower part), discharged from the side end part of the plates 10, 10 and separated from the flowing along water 11, 11. The contact of the turbulent water flows 7, 7 with the high temp. steel plate 1 again is then prevented and the uniform cooling characteristic on the width direction of the upper face and the upper and lower faces of the steel plate 1 is obtd.

17. 发明专利

JPS62161415A COOLING METHOD FOR HIGH TEMPERATURE STEEL PLATE 失效
公开(公告)号：JPS62161415A
公开(公告)日：1987-07-17
申请号：JP550786
申请日：1986-01-13
申请人： KOBE STEEL LTD
发明人： TAKAHASHI IZUO , OBANYA YOSHIKAZU , OTOMO AKINORI , NAKAJIMA SHIGENORI , KISHIMOTO YOSHIISA , FUKUMITSU HIDEKATSU
IPC分类号： B21B45/02 , C21D9/52
摘要： PURPOSE:To improve the flatness of a product of steel plate by setting a conveying speed when cooling of the top end of the steel plate slower than a conveying speed when cooling of the other parts except the top end. CONSTITUTION:Jet slit nozzles 3 are provided on the upper and lower surfaces of the steel plate 2 running on a conveying roll 1 and wiping rolls 4 holding the steel plate in-between to cut water are disposed upstream and down stream of the nozzle 3. In this case, the steel plate 2 is cooled stepwise at a shotting zone A, a flowing zone B and a stirring zone C. In this mechanism, considering the difference of the cooling efficiency between the top end of the steel plate 2 and the other part, the driving of the roll 1 is controlled so that the conveying speed of the steel plate when cooling the top end is set slower than the conveying speed when cooling the other parts except the top end. In this way, the lowing of cooling efficiency at the stirring area C is prevented to uniformize the temp. distribution in the longitudinal direction. Therefore, the flatness of the product is improved.

18. 发明专利

JPS62157712A DEFORMATION ESTIMATING METHOD FOR CUT-MACHINING OF PLATE MATERIAL 失效
公开(公告)号：JPS62157712A
公开(公告)日：1987-07-13
申请号：JP29896585
申请日：1985-12-27
申请人： KOBE STEEL LTD
发明人： TAKAHASHI IZUO , OBANYA YOSHIKAZU , OE KENICHI , KISHIMOTO YOSHIISA , IWAI KIYOSHI , HIGUCHI KOICHI
IPC分类号： B23D36/00 , B21B15/00 , B21C51/00
摘要： PURPOSE:To correctly estimate the deformation by measuring the surface temperature distribution of a plate material two-dimensionally and using an estimation equation including the residual stress after the temperature distribution is unified to determine the deformation. CONSTITUTION:A rolled plate 100 fed in the A direction on a runout table 3 from a rolling machine 2 is rectified by a hot leveler 4, then the surface temperature is two-dimensionally measured by a scanning thermometer 5 at a distance of DELTAy in the Y direction and at a distance of DELTAx in the X direction as the plate advances, and measured values are fed to a minicomputer 7 via a signal converter 6. The difference between the measured temperature output T and the room temperature is calculated to obtain the temperature deviation distribution, and the lateral bending displacement is determined and converted into the lateral bending quantity. By repeating this process, the approximately estimated maximum value of the lateral bending quantity is determined, it is fed to a process computer 9 via an optical communication link 8 and is compared with a preset allowable maximum value of the lateral bending quantity, then instructions such as shipping or shipping suspension are issued.

19. 发明专利

JPS60148619A PLATE THICKNESS CONTROLLING METHOD IN HYDRAULIC ROLLING REDUCTION TYPE ROLLING MILL 失效
公开(公告)号：JPS60148619A
公开(公告)日：1985-08-05
申请号：JP507784
申请日：1984-01-13
申请人： KOBE STEEL LTD
发明人： KONISHI MASAMI , MORITA TOORU , NAKADA TAKAMASA , TAKAHASHI IZUO , KITAMURA AKIRA
IPC分类号： B21B37/18 , B21B37/64
摘要： PURPOSE:To stabilize a control, to raise a control accuracy, and to raise a yield of a product by executing a control by calculating a control gain and a tuning rate based on an actual mill constant of a rolling mill and a plastic deformation coefficient. CONSTITUTION:At the time of rolling of each pass, a mill constant M of a rolling mill in the pass concerned is calculated based on a rolling load deviation, an entry plate thickness deviation, a delivery plate thickness deivation, and a roll gap deviation. Based on this mill constant M, a range of a tuning rate (k) is calculated by an inequality I . Provided that K, T1 and T2, MC, and Q denote a control gain, parameters in a hydraulic rolling reduction device, a mill constant used for a control of the pass concerned, and a plastic coefficient, respectively. Or the control gain K is calculated by an inequality II, and the tuning rate (k) and the control gain K are compared with a tuning rate k0 and/or a control gain K0 used in the pass concerned. In case they are deviated from a range, the tuning rate k0 and the control gain K0 are corrected and a plate thickness is controlled.

20. 发明专利

JPH062291B2 失效
公开(公告)号：JPH062291B2
公开(公告)日：1994-01-12
申请号：JP13345386
申请日：1986-06-09
申请人： KOBE STEEL LTD
发明人： TAKAHASHI IZUO , OOBANYA YOSHIKAZU , FUKUMITSU HIDEKATSU , TANAKA SHOHEI , FUJII KEIICHI , KISHIMOTO YOSHIISA , OOTOMO AKINORI , TAKATSUKA KORO , AKYAMA KENSHO
IPC分类号： C21D1/00 , B21B45/02 , C21D9/52

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