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1. 发明授权

US06432164B1 Method for refining molten steel and apparatus therefor 有权
标题翻译：炼钢方法及其设备
公开(公告)号：US06432164B1
公开(公告)日：2002-08-13
申请号：US09763044
申请日：2001-02-15
申请人： Okitomo Kunitake , Norio Omura , Wataru Sakai , Susumu Mukawa , Tadashi Imai
发明人： Okitomo Kunitake , Norio Omura , Wataru Sakai , Susumu Mukawa , Tadashi Imai
IPC分类号： C21C710
CPC分类号： C21C7/064 , C21C7/0075 , C21C7/068 , C21C7/10
摘要： A method for refining molten steel by immersing the lower opening end of a cylindrical immersion tube equipped with a lance into the molten steel contained in a ladle, controlling the pressure in the cylindrical immersion tube to a prescribed pressure range to suck up the molten steel, injecting an agitation gas from the bottom of the ladle towards the surface of the sucked-up molten steel, and decarburizing and refining the molten steel under a reduced pressure, characterized in that the method comprising the steps of; controlling the pressure Pt (Torr) in the cylindrical immersion tube so as to satisfy the following formulae (1) and (2), blowing oxygen gas to the surface of the molten steel through the lance, and decarburizing and refining the molten steel under a reduced pressure; Pt>760−1.297×107/Dc2 (1) K=1.71×Dl0.211×Dc0.438×Wm−1.124×Qg0.519×Pt−0.410>0.046 (2) wherein, K: capacity coefficient concerning the decarburizing reaction (l/min.) Dl: inner diameter of the ladle (cm) Dc: circle-reduced diameter of the cylindrical immersion tube (cm) Wm: mass of molten steel per processing (t) Qg: quantity of agitation gas injection (Nm3/h.).
摘要翻译：通过将装备有喷枪的圆筒形浸入管的下开口端浸入钢包中所含的钢水中来精炼钢水的方法，将圆筒形浸入管中的压力控制到规定的压力范围以吸入钢水，从钢包的底部向吸入钢水的表面注入搅拌气体，并在减压下对钢水进行脱碳和精炼，其特征在于包括以下步骤：控制圆柱形浸入管中的压力Pt（Torr）以满足下列公式（1）和（2），通过喷枪将氧气吹入钢水表面，并在钢水下进行脱碳和精炼其中，K：脱碳反应的容量系数（l / min）D1：钢包内径（cm）Dc：圆筒形浸入管的圆直径（cm）Wm：钢水质量处理（t）Qg：搅拌气体喷射量（Nm3 / h。）。

2. 发明授权

US4933596A Deflection yoke with compensation for misconvergence by the horizontal center raster 失效
标题翻译：偏转轭，补偿水平中心光栅失会聚
公开(公告)号：US4933596A
公开(公告)日：1990-06-12
申请号：US279114
申请日：1988-12-02
申请人： Masaaki Yoshii , Norio Omura
发明人： Masaaki Yoshii , Norio Omura
IPC分类号： H01J29/76 , H01J29/70 , H04N3/16 , H01F7/00 , H04N5/645
CPC分类号： H01J29/705 , H01J2229/5687
摘要： In a deflection yoke for a color cathode-ray tube having an electron gun assembly for generating a plurality of electron beams which are directed longitudinally to converge substantially at the center of a screen, and in which a deflection magnetic field is provided through which the beams pass between the gun assembly and the screen so as to be deflected from the center of the screen for scanning the latter; horizontal center raster (HCR) misconvergence of the beams is avoided by providing a closed circuit in which an induced current is generated in response to a leakage magnetic field from the horizontal deflection magnetic field, and such induced current in the closed circuit generates a compensating magnetic field by which the distribution of the horizontal deflection magnetic field, in the longitudinal direction of the beams passing therethrough, is suitably altered.
摘要翻译：在具有用于产生多个电子束的电子枪组件的彩色阴极射线管的偏转线圈中，该多个电子束被纵向定向以会聚在屏幕的中心，并且其中提供偏转磁场，在枪组件和屏幕之间通过以从屏幕的中心偏转以对其进行扫描; 通过提供响应于来自水平偏转磁场的泄漏磁场产生感应电流的闭合电路来避免光束的水平中心光栅（HCR）失会聚，并且闭合电路中的这种感应电流产生补偿磁通过其适当地改变通过其中的光束的纵向方向上的水平偏转磁场的分布的场。

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