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1. 发明专利

JPH07277501A BAND PLATE CONVEYANCE DEVICE 失效
公开(公告)号：JPH07277501A
公开(公告)日：1995-10-24
申请号：JP6925794
申请日：1994-04-07
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： TAGUCHI TOSHIO , MIZUTA KEIJI , TANIZAKI KEIJI , MURAIE TAKESHI , OKAMURA SUSUMU , IWATANI AKIYUKI , ADACHI KAZUNARI , ICHI TOMOYUKI , HAGIWARA MITSUHIKO , ADACHI SHIGEYOSHI , KONDOU TAKAISA
IPC分类号： B65G51/03 , B65H29/24 , B65H29/52
摘要： PURPOSE:To provide a band plate conveyance device which reduces rolling of a band plate and cost by a simple method. CONSTITUTION:In a band plate conveyance device provided with a levitation device 1 which is provided below a pass line of a band plate 1 and in which a plurality of jet ports 2 which jet pressurized gas upward are formed and side plates 5 are erected on both end sides in the direction of width of the band plate 101 and a thermal insulation wall 6 which covers the band plate 101 and the levitation device 1, a buffer plate 17 which opposes to the levitation device 1 across the band plate 101 is provided.

2. 发明专利

JPH07277560A STRIP CARRYING DEVICE 失效
公开(公告)号：JPH07277560A
公开(公告)日：1995-10-24
申请号：JP6925894
申请日：1994-04-07
申请人： MITSUBISHI HEAVY IND LTD , KAWASAKI STEEL CO
发明人： YANAGI KENICHI , TAGUCHI TOSHIO , MIZUTA KEIJI , TANIZAKI KEIJI , MURAIE TAKESHI , ADACHI KAZUNARI , OKAMURA SUSUMU , IWATANI AKIYUKI , ADACHI SHIGEYOSHI , HAGIWARA MITSUHIKO
IPC分类号： B65H20/10 , B21B39/00 , B21B39/12 , C21D9/63
摘要： PURPOSE:To provide a low cost strip carrying device which reduces rolling of strips in a simple method. CONSTITUTION:In a strip carrying device which is provided with a floating device 1 which is provided below the pass line of a strip 101 and in which a plurality of injection ports 2 are formed for injecting pressured air upward and heat insulating walls 5 covering the strip 101 and the floating device 101, a baffle board 16 is provided protruding along the pass line of the strip 101 in the internal peripheral face of the heat insulating wall 5 above the strip 101 for restricting the flow of pressured air.

3. 发明专利

JPS5996227A CONTINUOUS ANNEALING INSTALLATION FOR SILICON STEEL PLATE 失效
公开(公告)号：JPS5996227A
公开(公告)日：1984-06-02
申请号：JP20566082
申请日：1982-11-24
申请人： KAWASAKI STEEL CO
发明人： HAGIWARA MITSUHIKO
IPC分类号： C21D9/54 , C21D9/46 , C21D9/56
摘要： PURPOSE:To prevent the decrease in the iron loss characteristic owing to over- tension during annealing by providing isolatedly a drying furnace and an annealing furnace and providing a device for applying a difference in tension and a heat insulating device between both furnaces. CONSTITUTION:A drying furnace 5 and an annealing furnace 14 are installed isolatedly from each other and are respectively independently heated and controlled. A device 15 for applying a difference in tension for the purpose of eliminating the influence of the tension in a steel strip 2 on the furnace 5 side and the tension in a steel strip 2 on the furnace 14 side by providing a difference between both tensions, for example, a bridle roll is provided. A space necessary for inserting a threading bar used to lead the strip 2 is maintained between the device 15 and a heating zone 6 in the annealing furnace, and an openable and closable heat insulating device 18 for insulating the heat of the strip 2 passing in said space is provided therein.

4. 发明专利

JPH03124316A DEVICE FOR LEVELING ROLLED SHAPE OF STRIP 失效
公开(公告)号：JPH03124316A
公开(公告)日：1991-05-27
申请号：JP26214289
申请日：1989-10-09
申请人： KAWASAKI STEEL CO
发明人： NAOI TAKAYUKI , NARUSE YUTAKA , IWATANI AKIYUKI , ONISHI TOSHIO , HAGIWARA MITSUHIKO
IPC分类号： B21D1/02
摘要： PURPOSE:To automate passing of the strip by equipping up and down, horizontally and oppositely a rubber lining roll and a hard roll, forming a strip guide path by engaging across an endless belts which are brought into contact with both rolls and making the dimensions and direction of inlet and outlet angles of the guide path freely adjustable. CONSTITUTION:A 1st roll 3 which soft elastic material is lined on that outer periphery and a 2nd roll 4 which is made of the hard roll are equipped up and down, horizontally and oppositely so that rolling reduction can be done. The endless belts 2a, 2b which are respectively brought into contact with the rolling reduction base line part of the 1st and 2nd rolls 3, 4 at an acute winding central angle are engaged across. The strip guide path is formed between the 1st and 2nd rolls 3, 4 by forming V-like inlet side and outlet side with the belts 2a, 2b. The dimensions and direction of the entering angle on the inlet side and delivery angle on the outlet side of the guide path are made to be freely adjustable. In this way, a leveler which has adequate leveling capacity for various conditions of the strip can be provided.

5. 发明专利

JPS5989780A PRETREATMENT FOR PREVENTING PICKUP 失效
公开(公告)号：JPS5989780A
公开(公告)日：1984-05-24
申请号：JP19853882
申请日：1982-11-12
申请人： KAWASAKI STEEL CO
发明人： TANAKA TOSHIHIKO , HAGIWARA MITSUHIKO
IPC分类号： C21D9/46 , C23G1/08
摘要： PURPOSE:To prevent pickup by removal of scale without deteriorating its appearance in a continuous annealing stage for a steel strip by subjecting the steel strip to a pretreatment including specified pickling prior to annealing in said stage. CONSTITUTION:A steel strip prior to continuous annealing is subjected to pickling with hydrochloric acid of 5-15wt% acid concn. kept at 20-60 deg.C or with sulfuric acid of 5-10wt% acid concn. kept at 20-40 deg.C. Pickup is prevented by the removal of scale, etc. from the surface of the steel strip and the pickling in a specified range wherein roughening of the base iron surface is averted. The influence of the difference in pickling condition on the cleaning performance and appearance of the steel strip is expressed by the ordinate (the content of oxygen in the total oxide in the surface of the steel strip) shown in the figure. The figure reveals that as the value at the ordinate is smaller the oxide such as scale or the like is correspondingly removed. The content of oxygen, 70-80ppm, prior to the pickling is decreased by the pickling to 10-30ppm.

6. 发明专利

JPS58115012A CARBON MATERIAL FOR HEARTH ROLL OF HEAT-TREATMENT FURNACE 失效
公开(公告)号：JPS58115012A
公开(公告)日：1983-07-08
申请号：JP21353881
申请日：1981-12-28
申请人： KAWASAKI STEEL CO
发明人： SUGIYAMA MOTOTOMO , ICHIDA TOSHIROU , HAGIWARA MITSUHIKO
IPC分类号： C01B31/02 , C01B31/00 , C21D1/00
摘要： PURPOSE:The titled carbon material for forming sooty carbon between it and a steel plate under annealing condition for steel plate, preventing the occurrence of pickup, comprising a carbonaceous carbon material having a given particle diameter, porosity, and degree of graphite. CONSTITUTION:The titled material comprising a carbonaceous material having an average particle diameter of

7. 发明专利

JPS57185930A PREVENTING METHOD FOR DEW CONDENSATION OF STEEL STRIP COIL 失效
公开(公告)号：JPS57185930A
公开(公告)日：1982-11-16
申请号：JP6877781
申请日：1981-05-06
申请人： KAWASAKI STEEL CO
发明人： HAGIWARA MITSUHIKO
IPC分类号： C21D9/663 , C21D9/54 , C23F15/00
摘要： PURPOSE:To prevent dew condensation of steel strip coils inexpensively and efficiently by placing these coils horizontally in such a way as to provide a required spacing from a floor surface, and heating the coil surfaces indirectly by means of steam feed pipes installed in the spacing. CONSTITUTION:For example, two pieces of sleepers 2 are disposed in parallel on a floor surface 1, and a required number of steel strip coils 3 are placed horizontally across these two sleepers 2. All the coils 3 are wedged 4 so as not to roll on the sleepers 2. A required number of steam feed pipes 5 are installed in the spacing between the floor surface and the bottom circumferential surface of the coils 3, and steam is supplied into these pipes 5 to heat the air between the surface 1 and the bottom circumferential surfaces of the coils 3 indirectly. The heated air ascends along the outside circumferential surfaces and both end faces of the coils 3, thereby elevating the temp. of the coils 3 and enclosing the coils 3. The surface temp. of the coils 3 is kept at about 17 deg.C by this and the condensation of dew is prevented.

8. 发明专利

JPS58144414A HEARTH ROLL FOR HIGH TEMPERATURE HEAT TREATMENT 失效
公开(公告)号：JPS58144414A
公开(公告)日：1983-08-27
申请号：JP2524282
申请日：1982-02-20
申请人： KAWASAKI STEEL CO , TOCALO CO LTD
发明人： HAGIWARA MITSUHIKO , OKA TAKASHI
IPC分类号： C23C4/10 , C21D1/00 , F27D3/02

9. 发明专利

JPS57137419A HEARTH ROLL OF HEAT TREATMENT FURNACE 失效
公开(公告)号：JPS57137419A
公开(公告)日：1982-08-25
申请号：JP2135581
申请日：1981-02-18
申请人： KAWASAKI STEEL CO
发明人： MORITO NOBUYUKI , HAGIWARA MITSUHIKO
IPC分类号： C21D1/00 , C21D9/56
摘要： PURPOSE:To obtain a hearth roll for heat treatment furnaces which is reduced of pickup and chemical and mechanical abrasion against steel plates by using a carbon material having specific graphitization rates, porosities and Shore hardnesses. CONSTITUTION:The hearth roll for heat treatment furnaces is manufactured by using a graphitic carbon material of >=0.6 graphitization rates, 5-15% porosities and 50-100 Shore hardnesses. This hearth roll is considerably reduced of pickup, chemical and mechanical abrasion against steel plates under annealing conditions for steel plates in a high temp. atmosphere of >=900 deg.C consisting essentially of H2, N2 and contg. H2O.

10. 发明专利

JPH05329509A MANUFACTURE OF ELECTRIC STEEL SHEET FOR LAMINATED IRON CORE EXCELLENT IN PUNCHING PROPERTY AND WELDABILITY 失效
公开(公告)号：JPH05329509A
公开(公告)日：1993-12-14
申请号：JP13825792
申请日：1992-05-29
申请人： KAWASAKI STEEL CO
发明人： ICHI TOMOYUKI , OKAMURA SUSUMU , ONO TOMOMUTSU , HAGIWARA MITSUHIKO
IPC分类号： B21B1/22 , B21B3/02 , B21B27/00 , B21B27/02 , C21D8/12 , H01F1/18
摘要： PURPOSE:To provide not only excellent punching property but both weldability and space factor that are incompatible even when a steel sheet is a high-grade material contg. substantial amounts of Si. CONSTITUTION:At the time of manufacturing an electric steel sheet with an insulating coating film, rolling of the preceding pass to the final pass in the final cold rolling stage is executed with a rolling roll of which the average deviation SRa of center plane of the roll satisfies a range of 0.50 to 1.50mum. Further, rolling of the final pass in the final cold rolling stage is executed with a rolling roll of which the average deviation SRa of the center plane of the roll is 0.20 to 0.80mum and with which surface property that the number of recessed parts is >=50 per 1mm of the unit area which is cut by the center plane is attained.

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