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1.发明授权
公开(公告)号：US4415510A
公开(公告)日：1983-11-15
申请号：US314319
申请日：1972-12-12
申请人： Wesley Q. Richmond
发明人： Wesley Q. Richmond
IPC分类号： C04B35/653 , B22D23/08
CPC分类号： C04B35/653
摘要： Oxide refractory materials (for example, alumina-zirconia mixtures) can be cast to have an extremely fine crystal structure by casting them onto a non-reactive, non-melting particulate solid cooling media of a material other than that of the oxide refractory material (for example, steel spheres having a size ranging from about 5 to about 60 mm). By using steel spheres as the cooling media, the spheres can be removed from the solidified material with a magnet. The solidified material, when crushed and graded, has exceptional utility as an extremely tough abrasive grain.
摘要翻译： 氧化物耐火材料（例如，氧化铝 - 氧化锆混合物）可以通过将其浇铸到除氧化物耐火材料以外的材料的非反应性，非熔化的颗粒状固体冷却介质上而具有非常细的晶体结构 例如，具有约5至约60mm的尺寸的钢球）。 通过使用钢球作为冷却介质，可以用磁体从固体材料中除去球体。 当被压碎和分级时，固化的材料作为非常坚硬的磨粒具有特殊的用途。
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公开(公告)号：US4192673A
公开(公告)日：1980-03-11
申请号：US970956
申请日：1978-12-19
申请人： Kohzo Baba , Itsuyoshi Nagatomo
发明人： Kohzo Baba , Itsuyoshi Nagatomo
CPC分类号： B22F9/08 , C22C33/0207 , B22F2009/0804
摘要： A method of manufacturing granulated ferronickel by deoxidizing fused ferronickel containing no less than 0.1%, preferably 0.2 to 3.0%, of carbon with addition of a deoxidizing agent such as Al, ferrosilicon ferromanganese and the like, while blowing inert gas into the melt and/or with use of a vacuum degassing apparatus if necessary, and then water granulating the deoxidized metal. The granulated ferronickel thus obtained is small in size and convenient to handle.
摘要翻译： 一种通过加入脱氧剂如Al，硅铁锰铁等除去含有不少于0.1％，优选0.2-3.0％的碳的熔融镍铁的方法，同时将惰性气体吹入熔体和/ 或者如果需要使用真空脱气装置，然后对脱氧金属进行水造粒。 这样得到的造粒铁镍铁合金尺寸小，操作方便。
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公开(公告)号：US4177026A
公开(公告)日：1979-12-04
申请号：US836711
申请日：1977-09-26
CPC分类号： B22F9/082
摘要： A device for the manufacture of spherical metallic powder comprising a vertical cylinder-conical vessel having in an upper part, means for introduction of a stream of liquid metal and for atomizing said stream using jets of gas and, in a lower part, gas inlet means for producing upwardly inclined tangential jets of gas for generating vortices along an ascending spiral centered on the axis of the vessel. The device also comprises a gas outlet connected to a cyclone dust remover whereby metal powder carried by the gas is separated from the gas, the gas outlet of the cyclone dust remover being connected to the gas inlet means and the dust outlet of the cyclone dust remover being connected to a duct opening into the vessel in the immediate vicinity of the jets produced by the gas inlet means.
摘要翻译： 一种用于制造球形金属粉末的装置，包括在上部具有垂直圆柱形锥形容器，用于引入液态金属流并用于使用气体喷射来雾化所述流并且在下部中的气体入口装置 用于产生向上倾斜的切向喷流，用于沿着以容器轴线为中心的上升螺旋产生涡流。 该装置还包括连接到旋风除尘器的气体出口，其中由气体携带的金属粉末与气体分离，旋风除尘器的气体出口连接到气体入口装置和旋风除尘器的灰尘出口 在气体入口装置产生的喷气机附近连接到通向容器内的管道。
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公开(公告)号：US4097266A
公开(公告)日：1978-06-27
申请号：US645395
申请日：1975-12-30
CPC分类号： B22F1/025 , B23K35/0244 , H05K3/3436 , H05K2201/10234 , H05K2201/10992 , H05K2203/0338 , H05K2203/041 , Y02P70/613 , Y10T428/12181
摘要： A microsphere of solder having a metallic core, in which the thickness of the solder coating of the microsphere is more than 20 microns, can be produced by a process comprising preparing a sheet having a plurality of hollows provided all over the sheet, placing a spherical grain of a metal together with at least one grain of solder in each of said hollows, the metallic grain having wettability for solder, then heating the grains in the hollow in the presence of a flux to coat the metallic grain with the solder, and recovering a spherical solder bead having a metallic core.
摘要翻译： 具有金属芯的焊料微球，其中微球的焊料涂层的厚度大于20微米，可以通过以下方法制备，该方法包括制备具有遍及片材的多个中空部分的片材，放置球形 金属颗粒与每个所述凹槽中的至少一个焊料晶粒一起，金属颗粒具有用于焊料的润湿性，然后在焊剂存在下加热中空部分中的晶粒以用焊料涂覆金属颗粒，并回收 具有金属芯的球形焊料珠。
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公开(公告)号：US4078873A
公开(公告)日：1978-03-14
申请号：US751004
申请日：1976-12-15
CPC分类号： B22F9/082 , B22F9/10 , B22F2009/084 , B22F2009/088
摘要： An apparatus is set forth wherein powder is produced by melting metal in a melting furnace where it is then poured into a tundish which directs the molten metal onto a spinning disc means. The tundish is located at the center of a nozzle plate which contains a plurality of annular nozzle means for directing a coolant flow downwardly around the spinning disc means at different radial positions. Controls are provided for controlling atmosphere in said apparatus. Further, controls are provided to control the speed of the disc means and the mass flow of the cooling fluid through each of the nozzle means.
摘要翻译： 提出了一种装置，其中通过在熔炉中熔化金属来制备粉末，然后将其倒入将熔融金属引导到旋转盘装置上的中间包。 中间包位于喷嘴板的中心，其包含多个环形喷嘴装置，用于在不同的径向位置处将冷却剂流动向下引导旋转盘装置。 控制装置用于控制所述装置中的气氛。 此外，提供控制以控制盘装置的速度和通过每个喷嘴装置的冷却流体的质量流量。
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6.发明授权Metal powder suited for powder metallurgical purposes, and a process for manufacturing the metal powder 失效适用于粉末冶金目的的金属粉末和金属粉末的制造方法
公开(公告)号：US4069045A
公开(公告)日：1978-01-17
申请号：US686937
申请日：1976-05-17
申请人： Bengt G. S. Lundgren
发明人： Bengt G. S. Lundgren
CPC分类号： C22C45/00 , B22F9/008 , B22F9/10 , Y10S75/954 , Y10T428/2982
摘要： A steel powder suited for powder metallurgical purposes consists of an amorphous to compact-grained, essentially dendrite-free material with irregularly cornered particle shape. Such a steel powder may be produced by causing molten steel to form at least one discrete, relatively thin film on a relatively cold metal surface of great cooling capacity, causing the thin film to solidify extremely rapidly on the metal surface to form a brittle amorphous to compact-grained, in principle completely dendrite-free steel film, and crushing or grinding the brittle film into a powder of an irregularly cornered particle shape.
摘要翻译： 适用于粉末冶金目的的钢粉末由具有不规则角度的颗粒形状的无定形至致密粒度，基本上无树枝状的材料组成。 这样的钢粉可以通过使钢水在大的冷却能力的相对较冷的金属表面上形成至少一个离散的相对薄的薄膜来制造，使得薄膜在金属表面上非常快速地固化以形成脆性非晶态 致密颗粒，原则上是完全无树枝状的钢膜，并将脆性薄膜粉碎或研磨成不规则棱角的颗粒形状的粉末。
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公开(公告)号：US4061699A
公开(公告)日：1977-12-06
申请号：US492628
申请日：1974-07-29
申请人： Paul Cichy
发明人： Paul Cichy
IPC分类号： C04B35/653 , C09K3/14 , B22D23/08
CPC分类号： C04B35/653 , C09K3/1427
摘要： Oxide refractory materials (for example, aluminazirconia mixtures) can be cast to have an extremely fine crystal structure, by casting a melt of oxide refractory materials onto a non-reactive, non-melting particulate solid cooling media of a material other than that of the oxide refractory material (for example, steel spheres having a size ranging from about 5 to about 60 millimeters). The casting takes place within a solidification chamber having an opening in its lower end, through which the cooling media and solidified oxide refractory melt can be removed. According to one embodiment, the opening in the lower end of the solidification chamber is either temporarily completely blocked by a base, which is periodically removed to allow the recovery of cooling media and solidified oxide refractory melt, or continuously partially blocked by the base, so that the cooling media and solidified oxide refractory melt can be continuously recovered from the solidification chamber. According to another embodiment, no base at all is required, but the continuous discharge of cooling media and solidified oxide refractory melt is controlled by the angle of inclination of the cylinder which constitutes the solidification chamber. The solidified material, when crushed and graded, has exceptional utility as an extremely tough abrasive grain.
摘要翻译： 氧化物耐火材料（例如，氧化铝氧化锆混合物）可以通过将氧化物耐火材料的熔体浇铸到非反应性非熔化颗粒状固体冷却介质上而被铸造以具有非常精细的晶体结构 氧化物耐火材料（例如，尺寸为约5至约60毫米的钢球）。 铸造发生在其下端具有开口的凝固室内，冷却介质和固化的氧化物难熔体可通过该开口被去除。 根据一个实施例，凝固室的下端中的开口暂时完全被基座封闭，该基座被周期性地移除以允许回收冷却介质和固化的氧化物难熔体，或者被基底连续部分地阻挡。 可以从固化室连续地回收冷却介质和固化的氧化物难熔体。 根据另一个实施例，根本不需要底座，但冷却介质和固化的氧化物耐火材料熔体的连续排放通过构成凝固室的气缸的倾斜角来控制。 当被压碎和分级时，固化的材料作为非常坚硬的磨粒具有特殊的用途。
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8.发明授权
公开(公告)号：US4051208A
公开(公告)日：1977-09-27
申请号：US626915
申请日：1975-10-29
申请人： Roland Jaccard
发明人： Roland Jaccard
CPC分类号： C08L61/20 , B01D9/0013 , C08G12/12 , C08G12/32 , C08G85/00
摘要： A system for the conversion of liquid phases of non-metallic substances into solid phases, especially polymerizable or crystallizable substances, provides a reaction chamber in the form of an upstanding substantially tubular-shaped hollow body, at the upper end of which there is introduced the liquid phase and at the lower end of which there is continuously withdrawn the solid phase. The reaction chamber is enclosed at least at its upper region containing the liquid phase by a jacket of polygonal cross-section, wherein the wall sections of the chamber which in cross-section is polygonal are formed in each case by a run of an endless band which bears against the associated jacket section, each such band moving continuously downwardly by means of the aforesaid run and being substantially synchronously driven with the remaining bands.
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公开(公告)号：US4047933A
公开(公告)日：1977-09-13
申请号：US692312
申请日：1976-06-03
CPC分类号： B22F9/082
摘要： Thermally induced porosity, which can lead to cracking in metal powders after consolidation, is believed to be caused by the entrapment of the inert gas used for atomization within the metal powders. The addition of an activating agent to the molten alloy prior to atomization with an inert gas, such as argon, serves to substantially reduce the porosity of metal powders. Suitable activating agents are characterized by an ability to rapidly diffuse to the surface of a molten metal particle and an affinity for oxygen. Activating agents that are useful for high nickel alloys and highly alloyed steels include magnesium, calcium, lithium, silicon, and rare earths.
摘要翻译： 被认为是在金属粉末中夹带用于雾化的惰性气体引起的热致孔隙度，其可导致金属粉末在固结后开裂。 在用惰性气体（例如氩气）雾化之前，向熔融合金中添加活化剂用于大大降低金属粉末的孔隙率。 合适的活化剂的特征在于能够快速扩散到熔融金属颗粒的表面和对氧的亲和力。 对高镍合金和高合金钢有用的活性剂包括镁，钙，锂，硅和稀土。
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公开(公告)号：US4021167A
公开(公告)日：1977-05-03
申请号：US624563
申请日：1975-10-21
CPC分类号： B22F9/082 , B22F1/0051 , B22F2009/0828
摘要： Apparatus for manufacturing spherical hollow particles which provides a large number of individual linear water jets arranged in a ring and converging at a single point, so that a molten metal may be passed through this ring of water jets and converging point.
摘要翻译： 用于制造球形中空颗粒的装置，其提供大量单个线性水射流，其布置在环中并在单个点处会聚，使得熔融金属可以穿过该水环喷流和会聚点。
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