CORED WIRE WITH PARTICULATE MATERIAL

    公开(公告)号:US20210123112A1

    公开(公告)日:2021-04-29

    申请号:US17142676

    申请日:2021-01-06

    摘要: A cored wire for refining molten metal includes a reactive core material that is in the form of a solid rod. A non-reactive particulate material radially surrounds the solid core material, and an exterior metal jacket radially surrounds the particulate material. The particulate material may include wood or other material that when introduced into the molten metal, undergoes thermal decomposition to release carbon dioxide, hydrocarbons, or combinations thereof as a shroud around the core material.

    Production of iron using environmentally-benign renewable or recycled reducing agents
    5.
    发明申请
    Production of iron using environmentally-benign renewable or recycled reducing agents 有权
    使用环保型可再生或回收还原剂生产铁

    公开(公告)号:US20070209480A1

    公开(公告)日:2007-09-13

    申请号:US11716352

    申请日:2007-03-09

    IPC分类号: C21C7/04

    摘要: To produce metallic iron from iron ore, a composition comprising a mass of material formed from a mixture of iron ore particles and particles of a reductant that is either a biomass material in particulate form or a plastic resinous material in particulate form is used. The reductant can also be a mixture of biomass material and resin in any proportions. The mass of material comprises at least one body having a shape adapted for smelting such as pellets, briquettes, pieces or lumps. The pellets have sufficient cohesion to maintain the shape into which they have been formed. The invention also provides a new method for smelting iron from its ore which comprises subdividing the ore into particles of a selected size, mixing the subdivided ore particles with particles of a biomass material or particles of a plastic resinous material or with mixtures thereof, forming a mass of the mixture into at least one body with a shape that is suited for smelting in a furnace and placing the body in a furnace and exposing it to sufficient heat to bring the iron therein to smelting temperature within the furnace to thereby produce metallic iron directly from the ore.

    摘要翻译: 为了从铁矿石生产金属铁,使用包含由铁矿石颗粒和作为颗粒形式的生物质材料的还原剂颗粒或颗粒形式的塑料树脂材料的混合物的混合物形成的大量材料的组合物。 还原剂也可以是任何比例的生物质材料和树脂的混合物。 材料的质量包括至少一个具有适于冶炼的形状的主体,例如颗粒,团块,块或块。 颗粒具有足够的内聚力以保持它们已经形成的形状。 本发明还提供了一种从其矿石中熔炼铁的新方法,其中包括将矿石细分成选定尺寸的颗粒,将细分矿石颗粒与生物质材料或塑料树脂材料颗粒或其混合物混合,形成 混合物的质量至少一个具有适于在炉中冶炼的形状并将本体放置在炉中并使其暴露于足够的热量以将铁中的铁熔化到炉内的熔炼温度的至少一个主体中,从而直接产生金属铁 从矿石。

    Refractory nozzle
    6.
    发明申请
    Refractory nozzle 审中-公开

    公开(公告)号:US20060076720A1

    公开(公告)日:2006-04-13

    申请号:US11287028

    申请日:2005-11-23

    IPC分类号: C21C7/04

    CPC分类号: B22D41/50

    摘要: A refractory nozzle is provided for arrangement in or on a wall of a metallurgical crucible, particularly for steel melts, having a discharge duct surrounding a flow passage, wherein the discharge duct has a surface delimiting the flow passage and an outer housing. In order to improve the known solutions of the prior art, one embodiment of the nozzle is characterized by the discharge duct having an upper part and a lower part with the lower part being fixed in or on the upper part, wherein the surface of the upper part delimiting the flow passage is made of a different material than the surface of the lower part delimiting the flow passage. In a second embodiment the nozzle is characterized by the discharge duct having an upper part and a lower part with the lower part being fixed on or in the upper part, wherein the diameter of the flow passage in the upper part is greater than the diameter in the lower part.

    Desulphurization of ferrous materials using sodium silicate
    7.
    发明申请
    Desulphurization of ferrous materials using sodium silicate 审中-公开
    使用硅酸钠脱铁黑色金属材料

    公开(公告)号:US20050056120A1

    公开(公告)日:2005-03-17

    申请号:US10662685

    申请日:2003-09-15

    IPC分类号: C21C1/02 C21C7/064 C21C7/04

    CPC分类号: C21C1/025 C21C7/0645

    摘要: The invention relates to a method for the preparation of a sodium-based reactive desulphurizing agent for use in molten ferrous materials. The sodium in the reactive desulphurizing agent is a sodium silicate, a composition comprising of Na2O and SiO2. In a second embodiment of the invention, the sodium silicate reactive desulphurizing agent also comprises of an alkali or an alkaline material or other materials, such as oxides of calcium, aluminum and magnesium. Preferred raw materials for the oxides of calcium, aluminum and magnesium are, respectively, lime, alumina and dolomite. The premixed solid reactive desulphurizing agent is brought in contact with the molten ferrous material, allowing the desulphurization or the double replacement of the iron sulphur to take place and produce a ferrous oxide. The sodium in the reactive desulphurizing agent is rendered resistant to combustion or evaporation on contact with the molten ferrous materials by the flux activity of the silica. A metallic solid, such as aluminum, is introduced into the molten ferrous material to complete the reduction of the ferrous oxide.

    摘要翻译: 本发明涉及制备用于熔融黑色金属材料的钠基反应性脱硫剂的方法。 反应性脱硫剂中的钠是硅酸钠,由Na 2 O和SiO 2组成的组合物。 在本发明的第二个实施方案中,硅酸钠反应性脱硫剂还包括碱金属或碱性材料或其他材料,例如钙,铝和镁的氧化物。 钙,铝和镁的氧化物的优选原料分别是石灰,氧化铝和白云石。 使预混固体反应性脱硫剂与熔融的铁质材料接触,允许铁硫的脱硫或双重置换并产生氧化亚铁。 反应性脱硫剂中的钠通过二氧化硅的助熔剂活性而与熔融的亚铁物质接触时耐燃烧或蒸发。 将金属固体,例如铝引入熔融铁质材料中以完成氧化亚铁的还原。

    Steel for machine structural use and method of producing same
    8.
    发明授权
    Steel for machine structural use and method of producing same 有权
    机械结构用钢及其制造方法

    公开(公告)号:US06838048B2

    公开(公告)日:2005-01-04

    申请号:US10259744

    申请日:2002-09-30

    摘要: A steel for machine structural use which comprises, on the percent by mass basis, C: 0.1 to 0.6%, Si: 0.01 to 2.0%, Mn: 0.2 to 2.0%, S: 0.005 to 0.20%, P: not more than 0.1%, Ca: 0.0001 to 0.01%, N: 0.001 to 0.02% and Al: not more than 0.1%, with the balance being Fe and impurities, with a value of [Ca]e defined by [Ca]e=T.[Ca]−(T.[O]/(O)ox)×(Ca)ox of not more than 5 ppm or with a proportion of MnO contained in oxide inclusions of not more than 0.05 and a value of Ca/O of not more than 0.8 is excellent in machinability and, therefore, it can be used as a steel stock for various machine structural steel parts, such as in industrial machinery, construction machinery and conveying machinery such as automobiles. It is substantially free of Pb, hence suited for use as a steel friendly to the global environment. [Ca]e is the effective Ca concentration index (ppm by mass), T.[Ca] and T.[O] are the contents of Ca and O, respectively, in ppm by mass, and (O)ox and (Ca)ox are the proportions of O and Ca contained in oxide inclusion, respectively.

    摘要翻译: 1.一种机械结构用钢,其以质量%计含有C:0.1〜0.6%,Si:0.01〜2.0%,Mn:0.2〜2.0%,S:0.005〜0.20%,P:0.1以下 %,Ca:0.0001〜0.01%,N:0.001〜0.02%,Al:不大于0.1%,余量为Fe和杂质,[Ca] e = T定义的[Ca] e值。 Ca] - (T. [O] /(O)o​​x)x(Ca)ox不大于5ppm或氧化物夹杂物中所含的MnO比例不大于0.05,Ca / O值不为 0.8以上的机械加工性优异,因此可以用作各种机械结构钢部件的钢坯,如工业机械,工程机械,汽车等输送机械。 它基本上不含Pb,因此适合用作对全球环境友好的钢铁。 [Ca] e是有效Ca浓度指数(质量ppm),T. [Ca]和T. [O]分别为质量ppm和(O)ox和(Ca )ox分别是氧化物夹杂物中含有的O和Ca的比例。

    Composite briquette for electric furnace charge
    9.
    发明授权
    Composite briquette for electric furnace charge 失效
    用于电炉充电的复合煤饼

    公开(公告)号:US5916827A

    公开(公告)日:1999-06-29

    申请号:US106076

    申请日:1998-06-29

    申请人: Pierre Vayda

    发明人: Pierre Vayda

    CPC分类号: C10L5/04 C10L5/10

    摘要: There is disclosed a briquette and a method of making the briquette, wherein the briquette includes a first quantity of carbon fines and a second quantity of a material in powdered form which contains iron or a similar metal, or an oxide thereof, the second quantity being sufficiently large that the slippery nature of the carbon fines is suppressed, and the overall density of the briquette is increased.

    摘要翻译: 公开了一种压块和制造该团块的方法,其中,该团块包括第一量的碳细粉和第二量的粉末形式的含有铁或类似金属或其氧化物的材料,其中第二量为 足够大,从而抑制了碳细粉的滑爽性质,并且增加了团块的总体密度。

    One-piece hollow camshafts and process for producing same
    10.
    发明授权
    One-piece hollow camshafts and process for producing same 失效
    一体式中空凸轮轴及其制造方法

    公开(公告)号:US5850695A

    公开(公告)日:1998-12-22

    申请号:US648072

    申请日:1996-07-12

    摘要: A method for producing a hollow camshaft comprising i) forming a camshaft preform by providing a hollow metal pipe, expanding the hollow pipe at spaced longitudinal locations by applying pressurized fluid internally to the hollow pipe, axially compressing the hollow pipe during the expanding step to accumulate metal at the spaced longitudinal locations, the expanding and compressing steps forming a camshaft preform having cam preforms of associated predetermined widths in a longitudinal pipe direction; and ii) forming a final camshaft from the camshaft preform by axially compressing the camshaft preform while applying the pressurized fluid to reduce the predetermined widths of the cam preforms while shaping the camshaft preforms into the final camshaft, the final camshaft having cams of relatively smaller widths in the longitudinal direction than the predetermined widths of the cam preforms.

    摘要翻译: PCT No.PCT / DE94 / 01218 Sec。 371日期:1996年7月12日 102(e)日期1996年7月12日PCT 1994年10月14日PCT PCT。 公开号WO95 / 14851 日期1996年6月1日制造中空凸轮轴的方法,包括:i)通过设置中空金属管来形成凸轮轴预制件,通过在中空管内部施加加压流体,在间隔开的纵向位置膨胀中空管, 在间隔开的纵向位置上积累金属的膨胀步骤,所述膨胀和压缩步骤形成凸轮轴预制件,所述凸轮轴预制件具有在纵向管道方向上具有相关联的预定宽度的凸轮预制件; 以及ii)通过在施加所述加压流体的同时轴向压缩所述凸轮轴预制件来形成所述凸轮轴预制件的最终凸轮轴,以在将所述凸轮轴预制件成形为最终凸轮轴的同时将所述凸轮预制件的预定宽度减小,所述最终凸轮轴具有相对较小宽度的凸轮 在纵向方向上比凸轮预制件的预定宽度。