Method of and apparatus for refining a melt containing solid cooling
material
    1.
    发明授权
    Method of and apparatus for refining a melt containing solid cooling material 失效
    用于精炼含有固体冷却材料的熔体的方法和装置

    公开(公告)号:US4434005A

    公开(公告)日:1984-02-28

    申请号:US445037

    申请日:1982-11-29

    IPC分类号: C21C5/46 C21C5/32

    CPC分类号: C21C5/4606 Y02P10/212

    摘要: A method of and an apparatus for the refining of a molten metal overlain by a slag and in which cold solids are introduced, e.g. in the form of metal scrap. According to the invention the heat necessary to melt the scrap and prevent undue cooling of the bath is generated by directing a jet of neutral gas entraining carbon against the surface of the melt perpendicularly thereto at Mach 1.5 to Mach 2.5, while refining oxygen is directed at the surface from jets inclined to the carbon entraining jet and the melt is bottomblown by neutral gas to prevent excessive foaming of the slag.

    摘要翻译: 一种用于精炼熔融金属的方法和装置,其由炉渣覆盖,其中引入冷固体,例如, 以金属废料的形式。 根据本发明,熔融废料和防止不适当的冷却液体所需的热量是通过将熔融金属的中性气体的气流以马赫数1.5至马赫数2.5垂直于熔融物的表面引导到熔体的表面而产生的,同时精炼氧被引导到 来自倾斜于碳夹带射流的喷嘴的表面和熔体被中性气体吹吹,以防止炉渣过度起泡。

    Process for metal-bath refining
    3.
    发明授权
    Process for metal-bath refining 失效
    金属浴精炼工艺

    公开(公告)号:US4334922A

    公开(公告)日:1982-06-15

    申请号:US222716

    申请日:1981-01-05

    IPC分类号: C21C5/32 C21C5/30

    CPC分类号: C21C5/30

    摘要: A process for refining a steel melt in a furnace in which a steel melt is formed with a slag layer thereon, the thickness of which can be controlled by passing a stream of inert gas upwardly through the melt, while directing a first stream of oxygen into the melt from a lance positioned above the melt for the top-blowing refining thereof to produce carbon monoxide above the melt and feeding a second stream of oxygen from the lance for the post-combustion of the released carbon monoxide, while monitoring continuously the thickness of the slag layer, the height of the melt, the carbon monoxide post-combustion factor (%CO.sub.2 /%CO+%CO.sub.2) and the speed of decarburization of the melt and controlling the height of the lance above the melt and the discharge rates of total blown oxygen, the second stream of oxygen and the inert gas stream at any given time in accordance with a particular relationship.

    摘要翻译: 一种在炉中精炼钢熔体的方法,其中钢熔体在其上形成有炉渣层,其厚度可以通过使惰性气体向上流过熔体而同时将第一氧气流引导到 来自位于熔体上方的喷枪的熔体用于顶吹精炼,以在熔体上方产生一氧化碳,并从喷枪中提供第二氧气流用于释放的一氧化碳的后燃烧,同时连续监测 炉渣层,熔体高度,一氧化碳后燃烧因子(%CO2 /%CO +%CO2)和熔体脱碳速度,并控制熔体上方的喷枪高度和总熔体排放速率 根据特定的关系在任何给定的时间吹入氧气,第二氧气流和惰性气体流。

    Method of desulfurizing a ferrous melt
    4.
    发明授权
    Method of desulfurizing a ferrous melt 失效
    黑色金属熔体脱硫方法

    公开(公告)号:US4415358A

    公开(公告)日:1983-11-15

    申请号:US371439

    申请日:1982-04-23

    CPC分类号: C21C7/064 B22D1/005

    摘要: A melt is contained in a vessel having below the level of the melt an at least gas-pervious wall portion. First the slag is removed, normally by pouring it off, from the melt. Then a finely divided treatment solids suspended in a gas is introduced through the wall portion into the melt. The melt reacts thoroughly with these solids. Immediately deslagging the melt substantially reduces its ability to pick up nitrogen or hydrogen. This can be enhanced by the further step, prior to introduction of the suspension, of adding pure lime to the melt to form a protective layer thereon. The vehicle gas for the powder of course is inert, normally argon. The vessel can also be sealed up with a tight cover after addition of pure lime to it and before introduction of the suspension. Otherwise in the subsequent desulfurizing nitrogen and hydrogen will enter into the metal matrix, especially if there is an appropriate slag present.

    摘要翻译: 熔体包含在具有低于熔体高度的至少一个气体可透过壁部分的容器中。 首先,通常将熔渣从熔体中倒出来。 然后将悬浮在气体中的细碎处理固体通过壁部分引入熔体中。 熔体与这些固体彻底反应。 立即脱气熔体显着降低其吸收氮气或氢气的能力。 这可以通过进一步的步骤,在引入悬浮液之前,将纯石灰添加到熔体中以在其上形成保护层来增强。 用于粉末的汽车气体当然是惰性的,通常是氩气。 在加入纯石灰并在引入悬浮液之前,也可以用紧密的盖子密封容器。 否则在随后的脱硫氮气中,氢气将进入金属基质,特别是如果存在适当的矿渣。

    Method of and apparatus for metallurgical treatment of a melt
    5.
    发明授权
    Method of and apparatus for metallurgical treatment of a melt 失效
    熔体冶金处理方法和设备

    公开(公告)号:US4421555A

    公开(公告)日:1983-12-20

    申请号:US360815

    申请日:1982-03-22

    CPC分类号: B22D1/005 C21C5/28 C21C5/48

    摘要: A system for treating, normally refining, a metallurgical melt has a melt-containing vessel having below the level of the melt an at least gas-pervious wall portion. A finely divided treatment solids is suspended in a treatment gas and this suspension is introduced through the pervious wall portion into the melt and reacting the melt with the gas and solids. The wall portion has openings oriented so that the gases and particles can pass into the vessel through them, but the molten metal therein cannot enter them. A plurality of such gas-and particle-pervious inserts are provided in the base of the crucible. They can be individually controlled relative to respective sensors provided above the melt. Thus exothermically reacting gases and/or particles are fed in under cold spots, or endothermically reacting gases and/or particles are fed in under hot spots.

    摘要翻译: 用于处理,通常精炼冶金熔体的系统具有在熔体水平面以下至少具有气体可透过壁部分的熔融容器。 将精细分散的处理固体悬浮在处理气体中,并将​​该悬浮液通过可渗透的壁部分引入熔体中并使熔体与气体和固体反应。 壁部具有取向的开口,使得气体和颗粒可以通过它们进入容器,但是其中的熔融金属不能进入它们。 多个这种气体和颗粒可渗透的插入件设置在坩埚的基部中。 它们可以相对于在熔体上方提供的各个传感器单独控制。 因此,放热反应气体和/或颗粒在冷点下进料,或者吸热反应气体和/或颗粒在热点下进料。

    Electromagnetic stirring process for continuous casting
    7.
    发明授权
    Electromagnetic stirring process for continuous casting 失效
    连续铸造电磁搅拌工艺

    公开(公告)号:US5279351A

    公开(公告)日:1994-01-18

    申请号:US976698

    申请日:1992-11-13

    申请人: Paul Metz

    发明人: Paul Metz

    CPC分类号: B22D11/115 B22D11/122

    摘要: An electromagnetic stirring process for continuous casting is presented. According to the present invention, coils of inductors are supplied with a multiphase current so as to create in a molten metal at least one primary rotational movement zone which is offset with respect to a central casting axis. This primary rotational movement zone is also revolved in a secondary gyratory movement around the central casting axis by a cyclic commutation of each phase of the current.

    摘要翻译: 介绍了一种用于连续铸造的电磁搅拌工艺。 根据本发明,电感线圈被提供有多相电流,以在熔融金属中产生相对于中心铸造轴线偏移的至少一个主旋转运动区域。 该主旋转运动区也通过电流的每相的循环换向在围绕中心铸造轴的次级回转运动中旋转。

    Composite complex profile and the process for its manufacturing
    8.
    发明授权
    Composite complex profile and the process for its manufacturing 失效
    复合型材及其制造工艺

    公开(公告)号:US4347019A

    公开(公告)日:1982-08-31

    申请号:US177592

    申请日:1980-08-13

    申请人: Paul Metz

    发明人: Paul Metz

    摘要: A composite beam especially for pile driving comprises an H-beam core whose flanges are bridged by steel sheets having inwardly bent edges engaging over outwardly projecting spurs on the flange edges. The web of the H-beam thus defines with the sheets two compartments which are internally lined with colloidal concrete, the outer steel surfaces being likewise coated with colloidal concrete.

    摘要翻译: 特别用于打桩的复合梁包括H型钢芯,其法兰由具有向内弯曲的边缘的钢板桥接,凸缘边缘上的向外突出的突起接合。 因此,H型梁的腹板与片材两个隔室一起被内衬衬有胶体混凝土,外钢表面同样涂有胶体混凝土。

    Method of expanding metallurgical slag
    9.
    发明授权
    Method of expanding metallurgical slag 失效
    扩大冶金炉渣的方法

    公开(公告)号:US4179275A

    公开(公告)日:1979-12-18

    申请号:US906110

    申请日:1978-05-15

    摘要: Molten metallurgical slags are expanded by contact with water in a liquid or vapor state by passing the molten slag along a prefoaming or expanding trough by delivering the slag to this trough via an intermediate trough which is shiftable along the prefoaming trough in order to vary the location at which the slag contacts the prefoaming trough and the expanding-agent film thereon in accordance with physical characteristics of the molten slag, especially its temperature and viscosity. From the pre-expanding or prefoaming trough, the partially expanded slag may be subjected to expansion by conventional means, e.g. a rotating drum which disperses the slag particles through the air so that they can be collected in a completely expanded, dry and solidified state.

    摘要翻译: 熔融冶金炉渣通过与液体或蒸汽状态的水接触而膨胀,通过使熔融炉渣沿着预发泡或膨胀槽通过将渣通过沿预发泡槽移动的中间槽输送到该槽来改变位置 渣根据熔渣的物理特性,尤其是其温度和粘度,与预发泡槽及其上的膨胀剂膜接触。 从预膨胀或预发泡槽中,部分膨胀的炉渣可以通过常规方法进行膨胀,例如, 一个旋转的鼓,其将渣粒分散通过空气,使得它们可以以完全膨胀,干燥和固化的状态收集。

    Smelting system for increased lining service of refining vessels
    10.
    发明授权
    Smelting system for increased lining service of refining vessels 失效
    冶炼系统,提高精炼船舶的内衬服务

    公开(公告)号:US3990294A

    公开(公告)日:1976-11-09

    申请号:US526715

    申请日:1974-11-25

    申请人: Paul Metz

    发明人: Paul Metz

    IPC分类号: F27D1/00 C21C5/56 C21C7/00

    CPC分类号: C21C5/567 Y10S75/957

    摘要: A refining ladle provided with a refractory lining contains a liquid-steel melt topped by a layer of slag. Wear of the lining, which is principally concentrated at the region in contact with the slag is minimized by displacing the upper surface of the melt relative to the lining of the ladle or other smelting receptacle so as to spread this wear over a greater area. This displacement is effected by providing the ladle with a plurality of throughgoing holes establishing different levels at which the melt surface is held for predetermined regular intervals. It is also possible to rotate the ladle continuously or discontinuously about its longitudinal axis. A hardenable patching material may be sprayed against a portion of the ladle lining when this portion is exposed by displacement of the melt and slag therein.

    摘要翻译: 设有耐火衬里的精炼钢包含有由一层熔渣顶起的液态钢熔体。 主要集中在与渣接触的区域的衬里的磨损通过使熔体的上表面相对于钢包或其他熔炼容器的衬里移动而使其上表面最小化,从而将磨损扩大到更大的面积。 通过为浇包提供多个贯穿孔,使熔体表面保持预定的规则间隔,形成不同的水平,来实现该位移。 也可以围绕其纵向轴线连续或不连续地旋转浇包。 当该部分通过其中的熔体和炉渣的置换而暴露时,可硬化的修补材料可以喷在钢包衬里的一部分上。