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41. 发明专利

JPH02255209A SHAPE CONTROL METHOD FOR WARM OR COLD ROLLING OF SHEET 失效
公开(公告)号：JPH02255209A
公开(公告)日：1990-10-16
申请号：JP7671989
申请日：1989-03-30
申请人： NIPPON STEEL CORP
发明人： YAMAMOTO HIROYASU , KATO OSAMU , SHIRAISHI TOSHIYUKI , INOUE TAKESHI
IPC分类号： B21B37/00 , B21B37/28 , B21B37/32 , B21B45/02
摘要： PURPOSE:To execute a shape control with high accuracy by adjusting the distribution of the spraying quantity of the cooling medium in the transverse direction of a sheet in accordance with the detected sheet temp. distribution in the transverse direction of the sheet and adjusting the shape control end in accordance with the detected shape distribution. CONSTITUTION:A sheet cooler 11, dewatering rolls 12, a shape detector 13, and a sheet temp. detector 14 are successively disposed on the outlet side of a rolling mill 1. The detection signals from the shape detector 13 and the sheet temp. detector 14 are inputted to an arithmetic unit 16. The required work roll bender force, the shift quantity of intermediate rolls and the distribution of cooling water flow rates are computed in accordance with previously determined control model equations. The results thereof are outputted to controllers 17, 18. The shape control is executed with the high accuracy in accordance therewith. The product shape is thus improved and the sheet passability in later stages is improved.

42. 发明专利

JPH02214796A LUBRICANT FOR WORKING METALLIC MATERIAL 失效
公开(公告)号：JPH02214796A
公开(公告)日：1990-08-27
申请号：JP3533889
申请日：1989-02-15
申请人： NIPPON STEEL CORP
发明人： KATO OSAMU , INOUE TAKESHI
IPC分类号： C10M111/02 , C10N10/04 , C10N20/06 , C10N40/24
摘要： PURPOSE:To obtain the subject economical lubricant, containing specific solid powder having a specific center line average height of the surface of a tool for deformation working of metallic materials in a liquid or paste and useful for reducing friction and surface damage of the tool. CONSTITUTION:The objective lubricant containing solid powder (e.g. graphite, molybdenum disulfide, fluoride, such as calcium fluoride or PTFE, metallic oxide, such as lead oxide or titanium dioxide, nitride, such as hexagonal crystal boron nitride, mica, glass or alkali phosphate) having a center line average height of

43. 发明专利

JPH0234203A METHOD FOR COLD ROLLING STEEL SHEET 失效
公开(公告)号：JPH0234203A
公开(公告)日：1990-02-05
申请号：JP18369788
申请日：1988-07-25
申请人： NIPPON STEEL CORP
发明人： INOUE TAKESHI , KATO OSAMU , NAKAMURA KAZUO , YAMAMOTO KUNIYASU
IPC分类号： B21B1/22 , B21B27/00 , B21B45/02
摘要： PURPOSE:To reduce friction coefficient by performing a composite plating for which solid fine particles having a hardness not lower than a specific Vickers hardness are dispersed on the surface of a work roll by using hard Cr, etc., as a matrix and cold rolling a rolled steel sheet with neat oil or an emulsion of water and oil spraying onto the sheet. CONSTITUTION:A composite plating is applied onto the surface of a work roll by using Ni, Ni-P, Cu, hard Cr, Fe, Co or Ni-Co as a matrix. The composite plating is such that one or more kinds of solid fine particles having a Vickers hardness of >=900 are dispersed in the plating layer. Cold rolling is performed by the work roll and spraying neat oil or an emulsion of water and oil onto a rolled steel sheet. At the time of contacting the sheet with the roll surface, actual contact is generated between the sheet and solid fine particles on the outermost surface. Hence, a friction coefficient between the sheet and roll is reduced, service life of the roll is prolonged as well as high speed rolling is performable without making surface quality of the sheet worse.

44. 发明专利

JPH01284409A ROLLING ROLL 失效
公开(公告)号：JPH01284409A
公开(公告)日：1989-11-15
申请号：JP11344288
申请日：1988-05-12
申请人： NIPPON STEEL CORP
发明人： INOUE TAKESHI , KATO OSAMU
IPC分类号： B21B27/00
摘要： PURPOSE:To obtain a strong wear resistant rolling roll by exposing ceramic fibers having a tilting angle to the roll axis and spaces proportioned to a diameter of the fibers in a metal film formed on a roll surface at a limited exposing ratio compared with the total surface area. CONSTITUTION:Ceramic fibers of =60 deg. (0 deg. in the case parallel with the roll axis and 90 deg. in the case orthogonal to the roll axis) and are spiral in the peripheral direction; each space of the fibers is =20% of an exposing area against the total roll surface area. Hence, all of price down caused by reducing the number of rolling roll changing times and improvement of operating efficiency and quality are achieved.

45. 发明专利

JP2002129289A TOOL MATERIAL FOR HOT WORKING 失效
公开(公告)号：JP2002129289A
公开(公告)日：2002-05-09
申请号：JP2000320416
申请日：2000-10-20
申请人： NIPPON STEEL CORP
发明人： UCHIDA HIDE , INOUE TAKESHI , ARAYA SHOICHI
IPC分类号： C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide the improvement of the rolling working ratio and the reduction of the consumption unit of a roll by improving the wear resistance and thermal cracking resistance as a hot rolling roll material. SOLUTION: This tool material for hot working has a composition containing, by mass, 2.8 to 3.5% C, 0.3 to 2.0% Si, 0.1 to 2.0% Mn, 1.5 to 6.0% Ni, 0.2 to 2.0% Cr and 0.1 to 1.5% Mo, containing one or two kinds of Ti and Zr by 0.01 to 0.5% in total, and the balance Fe with inevitable impurities.

46. 发明专利

JP2001286990A METHOD AND DEVICE FOR APPLYING LUBRICATOR ONTO END SURFACE OF ROLLER FOR TWIN ROLLER TYPE CONTINUOUS CASTING 失效
公开(公告)号：JP2001286990A
公开(公告)日：2001-10-16
申请号：JP2000109084
申请日：2000-04-11
申请人： NIPPON STEEL CORP
发明人： ISHIMORI YUICHI , AZUMA YOSHIAKI , INOUE TAKESHI
IPC分类号： B22D11/06
摘要： PROBLEM TO BE SOLVED: To prevent the invasion of lubricator into the peripheral surfaces of cooling rollers, to apply the lubricator onto the sliding surfaces of the casting rolls without deteriorating the quality of a thin cast slab and to achieve the stable casting for long time. SOLUTION: In a method and a device for applying the lubricator onto the end surfaces of the cooling rollers used for twin roller type continuous casting producing the thin cast slab while cooling and solidifying molten metal with the rotated peripheral surfaces of the cooling rollers by pouring the molten metal into a molten metal pooling part formed between one pair of the rotated cooling rollers and side weirs, the lubricator is applied only to the insides of the end surfaces of the rolls.

47. 发明专利

JP2000197909A SOLID LUBRICATING METHOD IN HOT ROLLING 失效
公开(公告)号：JP2000197909A
公开(公告)日：2000-07-18
申请号：JP30254699
申请日：1999-10-25
申请人： NIPPON STEEL CORP
发明人： INOUE TAKESHI , UCHIDA HIDE , ARAYA SHOICHI , HAMAUZU SHUICHI
IPC分类号： B21B1/22 , B21B27/10 , B21B45/02 , C10M103/02 , C10M109/00 , C10N40/24 , C10N50/08
摘要： PROBLEM TO BE SOLVED: To surely controll the feed rate and feeding part of a lubricant between a material to be rolled and work rolls in hot rolling by feeding a solid lubricant by pressing it against at least one side of the edge parts of the material to be rolled and abutting parts of the work roll on the edge parts of the material to be rolled. SOLUTION: The solid lubricant having a fusing point higher than the maximum temperature on the surface of the work roll during rolling is fed by pressing it against the work roll while pouring water. It is preferable that the pressing pressure is >=0.01 kgf/cm2. As the solid lubricant, a wax base solid lubricant such as saturated fatty acids and esters which are a solid at room temperature or the wax base solid lubricant in which added substances of the solid lubricant such as graphite and molybdenum disulphide are mixed is used. The shape of the solid lubricant is made into a square bar shape, columnar shape or elliptic columnar shape and, by pressing the one end of them, the solid lubricant is stuck to the surface of the material to be rolled or the surface of the work roll. The width of the solid lubricant is corresponded to the dimension of the edge part of the material to be rolled where burning is generated.

48. 发明专利

JP2000197907A METHOD FOR SUPPLYING SOLID LUBRICANT 失效
公开(公告)号：JP2000197907A
公开(公告)日：2000-07-18
申请号：JP30748099
申请日：1999-10-28
申请人： NIPPON STEEL CORP
发明人： INOUE TAKESHI , UCHIDA HIDE , ARAYA SHOICHI , HAMAUZU SHUICHI
IPC分类号： B21B27/10 , B21B45/02 , C10M125/10 , C10M159/06 , C10N30/06 , C10N40/24 , C10N50/08
摘要： PROBLEM TO BE SOLVED: To provide a stable supplying method of a solid lubricant at the time of high-speed rolling when metallic materials are rolled and a method for controlling the feed rate of the solid lubricant adapted to the variation in various conditions of rolling. SOLUTION: In the lubrication supplying method of the solid lubricant 6-1 impregnated into a porous material, the solid lubricant 6-1 impregnated into the porous material is supplied by pressing it against the rolls 4, 5 of a rolling mill or the material to be rolled at the time of rolling the metallic materials while supplying the solid lubricant. In the lubrication supplying method of the solid lubricant, at the time of rolling the metallic materials while supplying the solid lubricant, the feed rate of the solid lubricant is controlled by changing the pressing force of the solid lubricant against the rolls 4, 5 of the rolling mill or the material to be rolled in accordance with the variation in rolling load or rolling torque. Or, by intermittently pressing the solid lubricant against the rolls 4, 5 of the rolling mill or the material to be rolled in accordance with the variation in the rolling load or the rolling torque, the feed rate of the solid lubricant is controlled.

49. 发明专利

JPH1161349A ROLL AND ITS MANUFACTURE 失效
公开(公告)号：JPH1161349A
公开(公告)日：1999-03-05
申请号：JP22555897
申请日：1997-08-08
申请人： NIPPON STEEL CORP
发明人： UCHIDA HIDE , ARAYA SHOICHI , INOUE TAKESHI , HAMANABE SHIYUUICHI
IPC分类号： B21B27/00 , B21B27/03 , B22F7/08 , C22C29/06 , C22C38/00 , C23C24/08 , C23C30/00
摘要： PROBLEM TO BE SOLVED: To improve wear resistance of a composite roll by forming its surface layer with an iron-based alloy which contains carbide consisting of one kind or more of W, Mo, V, Nb, Ti, Ta, Zr, and Hf, and also making the surface layer contain a specific quantity of one kind or more of SiC grains or B4 C grains. SOLUTION: A mixed powder 4, in which one kind or more of SiC or B4 C is mixed for 5-90% in volume % in the iron-based alloy powder that contains carbide consisting of one kind or more of W, Mo, V, Nb, Ti, Ta, Zr, and Hf, is arranged between a roll shaft material 1 and a capsule 3, and sinter-formed by hot press or hot hydrostatic forming. The components of the iron-based alloy contain, in weight %, 0.8-3.5 C, 2-7 Cr, 10 or less Mo, 0.2 or less W, 5 or less Ni, and 10 or less Co, and also 3-15 of one kind or more selectively from V, Nb, Ti, Ta, Zr and Hf, with the balance essentially consisting of Fe.

50. 发明专利

JPH09229864A CATHODE PLATE FOR GLOW DISCHARGE EMISSION SPECTROSCOPIC ANALYSIS 失效
公开(公告)号：JPH09229864A
公开(公告)日：1997-09-05
申请号：JP3624596
申请日：1996-02-23
申请人： NIPPON STEEL CORP
发明人： ARAYA SHOICHI , INOUE TAKESHI , UCHIDA HIDE , YAMAMOTO HIROYASU
IPC分类号： G01N21/67
摘要： PROBLEM TO BE SOLVED: To analyze a sample of which the analytical surface has a curvature by providing recessed parts having a curvature in the periphery of the opening part for discharge emission of a cathode plate. SOLUTION: The cathode plate 1 for glow discharge emission spectroscopic analysis is mounted on a glow discharge emission spectroscopic analyser 1a with screws 15 and a recessed parts 3 having a curvature are formed in the periphery on the sample mounting side of the opening part 2 for discharge emission of the plate 1. These recessed parts 3 has a diameter larger than that of the opening part 2 and set to a size capable of providing an O-ring groove 6. The curvature of the recessed parts 3 is selected corresponding to the curvature of an analytical sample 4. An O-ring 5 composed of rubber high in the modulus of elasticity is fitted in the ring groove 6 and a discharge light emitting part 2a is stably held to a vacuum state. Subsequently, the sample 4 is mounted to be supported by a sample holder 7 and pressed to the opening part 2 by a press mechanism 8 to be brought into close contact therewith. By this constitution, abnormal discharge is not generated between the recessed parts 3 of the opening part 2 and the sample 4 and the sample of which the analytical surface has a curvature can be analyzed.

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