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21. 发明专利

JPH08246020A LANCE NOZZLE FOR BLOWING-IN CONVERTER 失效
公开(公告)号：JPH08246020A
公开(公告)日：1996-09-24
申请号：JP4725395
申请日：1995-03-07
申请人： NIPPON STEEL CORP
发明人： YAMAJI CHIHIRO , YAMADA YOSHIHIRO
IPC分类号： C21C5/46
摘要： PURPOSE: To extend the service life of a lance nozzle by fitting and extending a reinforcing material in the longitudinal direction of oxygen jetting holes for blowing. CONSTITUTION: In the metal-made lance nozzle excellent in heat conductivity, plural oxygen jetting holes 5 for blowing and a cooling water 4 passage are arranged. Gaseous oxygen is jetted at high speed from the oxygen jetting holes 5 for blowing. A rib 8 as the reinforcing material for supporting the inner wall of the oxygen jetting holes 5 for blowing is arranged for resisting the stress of deforming the circular cross section of this hole 5 into a flat or an elliptical shape. The rib 8 is fitted and extended in the longitudinal direction of the jetting holes 5 and supported with a fitting 9. The reinforcing material (rib) 8 is made of a stainless steel, copper or copper alloy, and the shape thereof is made to I-type, triarrow-type or cross-type. By this method, the flow of the oxygen jet can be kept in a prescribed flow.

22. 发明专利

JPH08218115A CARBON ROLL HAVING HIGH STRENGTH AND HIGH WEAR RESISTANCE AND EXCELLENT IN COPYING PROPERTY AND ITS PRODUCTION 失效
公开(公告)号：JPH08218115A
公开(公告)日：1996-08-27
申请号：JP2280395
申请日：1995-02-10
申请人： NIPPON STEEL CORP
发明人： KURISU YASUSHI , ASO TATSUJI , YAMAJI CHIHIRO , HIROTA YOSHIAKI , YAMAGATA SHOJI , NAGASE TAKAO , FUKUYAMA MASARU
IPC分类号： B21B39/00 , C21D1/00 , C21D1/40 , C21D9/56
摘要： PURPOSE: To produce a carbon roll with a long service life having high strength and high wear resistance, furthermore excellent in copying properties and excellent in steel sheet conveying properties at the time of high temp. or electric heating. CONSTITUTION: The outer circumference of a roll in which the barrel part is formed of carbon 3 is provided with a metallic layer 4 of 1 to 5mm thickness formed by thermal spraying or the shrinkage fitting of a metallic sleeve, and moreover, the surface of the metallic layer 4 is provided with a topmost surface layer 6 of 0.1 to 0.5mm thickness constituted of ceramics or cermet. By using this for a conveying roll for a steel sheet continuous heat treating furnace, the prevention of deterioration in the sheet shape, the prevention of the generation of meandering are made possible, and, as for a roll for energizing, the generation of sparks caused by deterioration in the contact can be prevented.

23. 发明专利

JPH06297108A COOLING ROLL IN METAL STRIP CONTINUOUS CASTING APPARATUS 失效
公开(公告)号：JPH06297108A
公开(公告)日：1994-10-25
申请号：JP11420493
申请日：1993-04-19
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： YAMAJI CHIHIRO , ARAI TAKASHI , MIYAZAKI MASAFUMI , WAKIYAMA YOICHI , SASAKI KUNIMASA
IPC分类号： B22D11/06
摘要： PURPOSE:To provide a cooling roll capable of producing a metal strip of high quality by holding the profile of the roll to a prescribed shape in a twin roll type continuous casting apparatus for producing the metal strip. CONSTITUTION:The cooling roll 1 is divided into three sections of A, B, C in the roll axial direction and among cooling grooves 2a, 2b, 2c arranged near the roll surface, the cooling grooves 2a, 2c on the sections A, C positioned at the end parts are arranged in equal density to each other. The cooling grooves in the section B positioned at the center part of the roll are arranged in density much closer than that of the cooling grooves 2a, 2c to increase the cooling capacity of the roll surface at the center part. Therefore, thermal deformation of the roll surface is controlled and by holding the roll profile of a prescribed shape, a uniform rolling reduction force is applied over the whole width of the solidified shell and the development of faults, such as crack, wrinkle is prevented.

24. 发明专利

JPH06126390A DRUM OF CONTINUOUS CASTING EQUIPMENT FOR METALLIC SHEET 失效
公开(公告)号：JPH06126390A
公开(公告)日：1994-05-10
申请号：JP24253992
申请日：1992-08-20
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： TSUTSUI KOJI , YAMAJI CHIHIRO , OKA HIDETAKA , ARAI TAKASHI
IPC分类号： B22D11/06
摘要： PURPOSE:To enable stable long-time casting by forming the end face parts on the inner side of the end face parts of a drum in contact with a side weir of a hard and hardly seizable material and the end face parts on the outer side of a material having excellent thermal impact resistance. CONSTITUTION:The end face parts 5 of the drum are formed by, for example, Ni plating and the end face parts 6 on the inner side are formed by explosive thermal spraying or plasma spraying of, for example, Cr3C2(70%)-Ni Cr which is hard and hardly seizable and has the high thermal impact resistance. The end face parts 7 on the outer side are formed by explosive thermal spraying or plasma spraying of, for example, CoCrAlY which has the excellent corrosion resistance to molten steel and has the high thermal impact resistance as well. The wear speed of the refractories of the side weir decreases and the casting time of one time is prolonged. The casting quantity is greatly increased.

25. 发明专利

JPH057107B2 失效
公开(公告)号：JPH057107B2
公开(公告)日：1993-01-28
申请号：JP13723684
申请日：1984-07-04
申请人： NIPPON STEEL CORP
发明人： YASUDA KAZUMI , YADORI KYOMI , YAMAJI CHIHIRO
IPC分类号： B22D11/128 , B21D3/05 , B22D11/12

26. 发明专利

JPH0461045B2 失效
公开(公告)号：JPH0461045B2
公开(公告)日：1992-09-29
申请号：JP1685088
申请日：1988-01-29
申请人： NIPPON STEEL CORP
发明人： YAMAJI CHIHIRO , OZAWA KOSAKU , NUIBE TSUZURI
IPC分类号： C21C5/28 , C21C5/46

27. 发明专利

JPS6143135B2 失效
公开(公告)号：JPS6143135B2
公开(公告)日：1986-09-26
申请号：JP19959182
申请日：1982-11-13
申请人： NIPPON STEEL CORP
发明人： OZAWA KOSAKU , YAMAJI CHIHIRO , YADORI KYOMI , OOHASHI TETSUO
IPC分类号： B22D11/04 , B22D11/043

28. 发明专利

JPS59209461A Dummy bar housing device 失效
标题翻译： DUMMY酒吧住房设备
公开(公告)号：JPS59209461A
公开(公告)日：1984-11-28
申请号：JP8276983
申请日：1983-05-13
申请人： Nippon Steel Corp
发明人： KATSUTA HISAO , YAMAJI CHIHIRO
IPC分类号： B22D11/08
CPC分类号： B22D11/085
摘要： PURPOSE:To reduce transfer time and to enable discharging of high-temp. billets by disposing a dummy bar receiver having the functions to pull up, transfer and charge dummy bars underneath a casting bed between a mold and a puller. CONSTITUTION:When a dummy bar 38 (expressed hereafter as DB38) is pulled above the level of a receiver 29 by a hook 27, a conveyor 35 is moved toward the DB38 and the suspension of the DB38 is transferred to the dog of the conveyor 35. The rear end of the DB38 and the bottom of a billet 40 are automatically disconnected when the DB38 is pulled up. The DB38 is quickly pulled up to be placed on the conveyor 35, and an upper frame 4 is fully closed by a turning driver 37 and is fixed by a cotter to a column 6. An unsolidified billet 40 is guided by a horizontal roll segment 1. The DB38 is charged into the mold 30 by the dummy bar receiver 29 which is actuated when the same is ready to be charged into the mold 30.
摘要翻译：目的：减少转移时间，使高温放电。通过设置具有在模具和拉拔器之间的浇铸床下拉，转移和加载虚拟棒的功能的虚拟棒接收器。构成：当通过钩27将虚拟棒38（下文称为DB38）拉到接收器29的水平面上时，传送器35朝向DB38移动，并且DB38的悬架被传递到传送带35的狗当DB38被拉起时，DB38的后端和钢坯40的底部自动断开。 DB38被快速地拉起以放置在传送带35上，并且上部框架4被转动驱动器37完全关闭，并通过一个开口钉固定到一个柱6.未固化的坯料40由水平辊段1 DB38通过虚拟棒接收器29被装入模具30中，当模具30准备充入模具30时，它被致动。

29. 发明专利

JPS5858969A GUIDING DEVICE FOR INGOT IN CONTINUOUS CASTING INSTALLATION 失效
公开(公告)号：JPS5858969A
公开(公告)日：1983-04-07
申请号：JP15757581
申请日：1981-10-05
申请人： NIPPON STEEL CORP
发明人： ONODA SUSUMU , YAMANE YOSHIAKI , YADORI KIYOMI , YAMAJI CHIHIRO
IPC分类号： B22D11/128
摘要： PURPOSE:To improve the quality of ingots by providing a pair or plural pairs of paired guiding roll groups for ingots in a curved part within frame-like segment frames wherein upper roll frames are constituted movably against lower roll frames, and making said roll groups movable in the radius of curvature direction of curving by means of buffer devices. CONSTITUTION:A pair or plural pairs of the respective roll pairs of paired guiding roll groups for ingots in the curved part of a continuous casting installation of curved type are provided in frame-like segment frames wherein upper roll frames are constituted movably against lower roll frames 2. Said frames are provided to a support frame of monolithic construction so as to be moved in the radius of curvature direction of the curving by means of buffer devices 12 when reaction higher than a prescribed value acts upon the guiding rolls for ingots. More specifically, the entire part of the frame-like segment frames is moved downward or upward by compressing the upper and lower springs of the devices 12.

30. 发明专利

JP2000246400A COOLING DRUM FOR TWIN DRUM TYPE THIN SHEET CONTINUOUS CASTING DEVICE 失效
公开(公告)号：JP2000246400A
公开(公告)日：2000-09-12
申请号：JP4782299
申请日：1999-02-25
申请人： NIPPON STEEL CORP
发明人： YAMAJI CHIHIRO
IPC分类号： B22D11/06
摘要： PROBLEM TO BE SOLVED: To even a heat releasing volume from a molten steel and a solidification shell in a width direction of a drum and form a solidification shell which is constant in a width direction by installing a cooling means to be used exclusively for both ends to a drum, and equalizing cooling abilities of a drum center part and a drum end. SOLUTION: A cooling drum 1a for a twin drum type thin plate continuous casting device has a ring-shaped protrusion part 1t at an end part, with which a side weir 2 is brought into contact, and a cooling structure 7 for circulating a coolant to a shaft part 1s. A heat pipe 8, which is filled inside with a small amount of operation liquid, namely water 9, is arranged to the cooling drum 1a. Latent heat is absorbed at the end due to evaporation and shrinkage of the water 9 so as to even the cooling distribution in the width direction including the end part. It is also preferable that a metallic porous element having micro probes is arranged to the cooling drum end. A stainless steel sintered compact, a steel of the like of 10-500 μm pore diameter and 0-60% porosity are suitable for the metallic porous element. The solvent distributed inside the cooling drum is oozed out from the micro pores, so as to cool the cooling drum end.

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