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    • 1. 发明授权
    • Process for casting hard-faced, lightweight camshafts and other
cylindrical products
    • 铸造硬面,轻型凸轮轴和其他圆柱形产品的工艺
    • US5560420A
    • 1996-10-01
    • US348932
    • 1994-11-25
    • Jeffrey S. HansenPaul C. TurnerEdward R. ArgetsingerRick D. Wilson
    • Jeffrey S. HansenPaul C. TurnerEdward R. ArgetsingerRick D. Wilson
    • B22C9/04B22D13/02B22D19/14B22D13/00B22C9/02
    • B22C9/04B22D13/026B22D19/14
    • A process for casting a hard-faced cylindrical product such as an automobile camshaft includes the steps of: (a) preparing a composition formed from a molten base metal and an additive in particle form and having a hardness value greater than the hardness value of the base metal; (b) introducing the composition into a flask containing a meltable pattern of a cylindrical product such as an automobile camshaft to be manufactured and encased in sand to allow the composition to melt the pattern and assume the shape of the pattern within the sand; and (c) rotating the flask containing the pattern about the longitudinal axes of both the flask and the pattern as the molten base metal containing the additive in particle form is introduced into the flask to cause particles of the additive entrained in the molten base metal to migrate by centrifugal action to the radial extremities of the pattern and thereby provide a cylindrical product having a hardness value greater at it's radial extremities than at its center when the molten base metal solidifies.
    • 用于铸造诸如汽车凸轮轴的硬面圆柱形产品的方法包括以下步骤:(a)制备由熔融贱金属和颗粒形式的添加剂形成的组合物,其硬度值大于 基本金属; (b)将组合物引入含有汽车凸轮轴等圆筒状产品的可熔型图案的烧瓶中,将其制成沙包体,使组合物融化,形成图案形状; 和(c)将含有图案的烧瓶的纵向轴线的烧瓶旋转,将含有颗粒形式的添加剂的熔融贱金属引入烧瓶中,使添加剂夹带在熔融贱金属中的颗粒 通过离心作用迁移到图案的径向末端,从而提供当熔融基底金属固化时具有在其径向末端处的硬度值大于其中心处的硬度值的圆柱形产品。
    • 2. 发明授权
    • Apparatus and method for increasing the diameter of metal alloy wires within a molten metal pool
    • 用于增加熔融金属池内的金属合金线的直径的装置和方法
    • US06342102B1
    • 2002-01-29
    • US09593211
    • 2000-06-14
    • Alan D. HartmanEdward R. ArgetsingerJeffrey S. HansenJack I. PaigePaul E. KingPaul C. Turner
    • Alan D. HartmanEdward R. ArgetsingerJeffrey S. HansenJack I. PaigePaul E. KingPaul C. Turner
    • B05C300
    • C23C2/006
    • In a dip forming process the core material to be coated is introduced directly into a source block of coating material eliminating the need for a bushing entrance component. The process containment vessel or crucible is heated so that only a portion of the coating material becomes molten, leaving a solid portion of material as the entrance port of, and seal around, the core material. The crucible can contain molten and solid metals and is especially useful when coating core material with reactive metals. The source block of coating material has been machined to include a close tolerance hole of a size and shape to closely fit the core material. The core material moves first through the solid portion of the source block of coating material where the close tolerance hole has been machined, then through a solid/molten interface, and finally through the molten phase where the diameter of the core material is increased. The crucible may or may not require water-cooling depending upon the type of material used in crucible construction. The system may operate under vacuum, partial vacuum, atmospheric pressure, or positive pressure depending upon the type of source material being used.
    • 在浸渍成型工艺中,待涂覆的芯材直接引入涂料的源块中,从而不需要衬套入口部件。 加工容器或坩埚被加热,使得只有一部分涂料变得熔化,留下作为芯材料的入口和密封周围的材料的固体部分。 坩埚可以包含熔融和固体金属,并且当用活性金属涂覆芯材时特别有用。 已经将包覆材料的源块加工成包括尺寸和形状的紧密公差孔以紧密地配合芯材。 芯材首先通过已经加工了紧公差孔的涂料的源块的固体部分,然后通过固体/熔融界面,最后通过芯材的直径增加的熔融相移动。 根据坩埚结构中使用的材料的类型,坩埚可能需要或可能不需要水冷。 系统可以在真空,部分真空,大气压或正压下运行,这取决于所使用的源材料的类型。
    • 7. 发明授权
    • Fixture for forming evaporative pattern (EPC) process patterns
    • 用于形成蒸发模式(EPC)工艺模式的夹具
    • US5265664A
    • 1993-11-30
    • US813709
    • 1991-12-27
    • Paul C. TurnerRonald R. JordanJeffrey S. Hansen
    • Paul C. TurnerRonald R. JordanJeffrey S. Hansen
    • B22C9/04
    • B22C9/046
    • A method of casting metal using evaporative pattern casting process patterns in combination with a fixture for creating and maintaining a desired configuration in flexible patterns. A pattern is constructed and gently bent to the curvature of a suitable fixture. String or thin wire, which burns off during casting, is used to tie the pattern to the fixture. The fixture with pattern is dipped in a commercially available refractory wash to prevent metal adherence and sticking to the fixture. When the refractory wash is dry, the fixture and pattern are placed in a flask, and sand is added and compacted by vibration. The pattern remains in position, restrained by the fixture. Metal that is poured directly into the pattern replaces the pattern exactly but does not contact or weld to the fixture due to the protective refractory layer. When solid, the casting is easily separated from the fixture. The fixture can be cleaned for reuse in conventional casting cleaning equipment.
    • 使用蒸发图案铸造工艺图案与用于以灵活图案创建和维持所需配置的夹具来铸造金属的方法。 构造图案并轻轻地弯曲到合适的夹具的曲率。 用于在铸造过程中燃烧的线或细线被用于将图案与固定装置连接起来。 将具有图案的固定件浸入市售的耐火洗涤物中以防止金属粘附并粘附到固定装置上。 当耐火洗涤物干燥时,将固定装置和图案放置在烧瓶中,并通过振动加入并压实沙子。 该图案保持在适当的位置,被夹具约束。 直接浇注到图案中的金属由于保护性耐火层而精确地取代了图案,但是没有接触或焊接到夹具。 当固体时,铸件容易与夹具分离。 固定装置可以在传统的铸造清洗设备中进行清洁以便再利用。
    • 8. 发明授权
    • Surface hardening of titanium alloys with melting depth controlled by
heat sink
    • 钛合金的表面硬化,熔化深度由散热片控制
    • US5455079A
    • 1995-10-03
    • US380918
    • 1995-01-31
    • Laurance L. OdenPaul C. Turner
    • Laurance L. OdenPaul C. Turner
    • B23K35/32C23C4/18C23C26/02C23C16/00
    • B23K35/325C23C26/02C23C4/18
    • A process for forming a hard surface coating on titanium alloys includes providing a piece of material containing titanium having at least a portion of one surface to be hardened. The piece having a portion of a surface to be hardened is contacted on the backside by a suitable heat sink such that the melting depth of said surface to be hardened may be controlled. A hardening material is then deposited as a slurry. Alternate methods of deposition include flame, arc, or plasma spraying, electrodeposition, vapor deposition, or any other deposition method known by those skilled in the art. The surface to be hardened is then selectively melted to the desired depth, dependent on the desired coating thickness, such that a molten pool is formed of the piece surface and the deposited hardening material. Upon cooling a hardened surface is formed.
    • 用于在钛合金上形成硬表面涂层的方法包括提供一片含钛的材料,该材料具有至少一部分待硬化的表面。 具有要硬化的表面的一部分的部件在背面通过合适的散热器接触,使得可以控制要硬化的所述表面的熔化深度。 然后将硬化材料作为浆料沉积。 替代的沉积方法包括火焰,电弧或等离子体喷涂,电沉积,气相沉积或本领域技术人员已知的任何其它沉积方法。 然后根据期望的涂层厚度将待硬化的表面选择性地熔化到所需的深度,使得熔池由片表面和沉积的硬化材料形成。 在冷却时形成硬化表面。