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    Preforms and Related Methods for Repairing Abradable Seals of Gas Turbine Engines
    31.
    发明申请
    Preforms and Related Methods for Repairing Abradable Seals of Gas Turbine Engines 有权
    用于修复燃气轮机发动机可磨损密封件的预制件和相关方法

    公开(公告)号：US20130142629A1

    公开(公告)日：2013-06-06

    申请号：US13758168

    申请日：2013-02-04

    申请人： United Technologies Corporation

    发明人： Michael Minor ,  Jacob A. Hall

    IPC分类号： F01D11/12

    CPC分类号： F01D11/122 ,  B23P6/005 ,  F05D2230/80 ,  F16J15/444 ,  Y10T29/49318 ,  Y10T29/49719 ,  Y10T29/49737 ,  Y10T428/12028 ,  Y10T428/12076 ,  Y10T428/12639

    摘要： A preform, for repairing an abradable seal component of a gas turbine engine, includes a multilayer stack that has a first layer and a second layer. The first layer is operative to bond the multilayer stack to a structural substrate of an abradable seal. The first layer includes structural material that corresponds to a material of the structural substrate and braze material that is compatible with the structural material. The second layer includes an abradable material. The multilayer stack is operative to bond to the structural substrate of the abradable seal component during a brazing process such that the second layer forms a replacement abradable layer of the abradable seal component.

    摘要翻译： 用于修复燃气涡轮发动机的可磨损密封部件的预成型件包括具有第一层和第二层的多层堆叠。 第一层可操作地将多层堆叠结合到可磨损密封件的结构基底。 第一层包括对应于结构基材的材料和与结构材料相容的钎焊材料的结构材料。 第二层包括可磨损材料。 在钎焊过程期间，多层堆叠可操作地结合到可磨损密封部件的结构基底，使得第二层形成可磨损密封部件的替代的可磨损层。

    Abrasion and impact resistant coatings
    35.
    发明授权
    Abrasion and impact resistant coatings 失效
    耐磨损和耐冲击涂层

    公开(公告)号：US08334476B2

    公开(公告)日：2012-12-18

    申请号：US12153327

    申请日：2008-05-16

    申请人： Jerry McCracken ,  Dale M. Homeniuk

    发明人： Jerry McCracken ,  Dale M. Homeniuk

    IPC分类号： B23K10/00

    CPC分类号： B23K9/042 ,  Y10T428/12028 ,  Y10T428/12139

    摘要： A method of hard facing a metal substrate with a two-layer abrasion and impact resistant coating by fusing a softer inner first coat of a matrix alloy of nickel-, cobalt- or iron-base alloy with carbide particles onto the substrate and fusing a harder second outer coat of a matrix alloy of nickel-, cobalt- or iron-base alloy with angular carbide particles onto the softer inner first coat. The softer inner first coat preferably has a hardness of about 30-40 Rc and the harder outer second coat preferably has a hardness of about 50-60 Rc. The carbide particles preferably are tungsten carbide particles in the size range of about 60 to 250μ and comprise about 55 to 65 wt % of each of the inner and outer coats.

    摘要翻译： 通过将镍，钴或铁基合金的基质合金的较软的内部第一涂层与碳化物颗粒融合到基底上并将较硬的 镍，钴或铁基合金与角碳化物颗粒的基体合金的第二外涂层到较软的内部第一涂层上。 较软的内部第一涂层优选具有约30-40Rc的硬度，较硬的外部第二涂层优选具有约50-60Rc的硬度。 碳化物颗粒优选为尺寸范围为约60至250μ的碳化钨颗粒，并且包含每个内外层的约55至65重量％。

    HIGH-PRESSURE VESSEL FOR GROWING GROUP III NITRIDE CRYSTALS AND METHOD OF GROWING GROUP III NITRIDE CRYSTALS USING HIGH-PRESSURE VESSEL AND GROUP III NITRIDE CRYSTAL
    36.
    发明申请
    HIGH-PRESSURE VESSEL FOR GROWING GROUP III NITRIDE CRYSTALS AND METHOD OF GROWING GROUP III NITRIDE CRYSTALS USING HIGH-PRESSURE VESSEL AND GROUP III NITRIDE CRYSTAL 有权
    用于生长III族氮化物晶体的高压容器和使用高压容器和III类硝酸盐晶体生长III族氮化物晶体的方法

    公开(公告)号：US20120304917A1

    公开(公告)日：2012-12-06

    申请号：US13491392

    申请日：2012-06-07

    申请人： Tadao HASHIMOTO ,  Edward LETTS ,  Masanori IKARI

    发明人： Tadao HASHIMOTO ,  Edward LETTS ,  Masanori IKARI

    IPC分类号： C30B7/10

    CPC分类号： C30B7/105 ,  B32B15/01 ,  C30B7/10 ,  C30B29/403 ,  C30B29/406 ,  C30B35/002 ,  Y10T428/12028

    摘要： Present invention discloses a high-pressure vessel of large size formed with a limited size of e.g. Ni—Cr based precipitation hardenable superalloy. Vessel may have multiple zones.For instance, the high-pressure vessel may be divided into at least three regions with flow-restricting devices and the crystallization region is set higher temperature than other regions. This structure helps to reliably seal both ends of the high-pressure vessel, at the same time, may help to greatly reduce unfavorable precipitation of group III nitride at the bottom of the vessel.Invention also discloses novel procedures to grow crystals with improved purity, transparency and structural quality. Alkali metal-containing mineralizers are charged with minimum exposure to oxygen and moisture until the high-pressure vessel is filled with ammonia. Several methods to reduce oxygen contamination during the process steps are presented. Back etching of seed crystals and a new temperature ramping scheme to improve structural quality are disclosed.

    摘要翻译： 本发明公开了一种大尺寸的大型高压容器。 Ni-Cr基沉淀硬化型超合金。 船舶可能有多个区域。 例如，高压容器可以分为具有流量限制装置的至少三个区域，并且结晶区域设定为比其他区域更高的温度。 该结构有助于可靠地密封高压容器的两端，同时有助于大大减少容器底部的III族氮化物的不利沉淀。 本发明还公开了提高纯度，透明度和结构质量的晶体的新方法。 含碱金属的矿化剂以最低的氧气和湿度暴露于高压容器中充满氨。 介绍了在工艺步骤中减少氧气污染的几种方法。 公开了晶种的后蚀刻和新的温度梯度方案以改善结构质量。

    High-pressure vessel for growing group III nitride crystals and method of growing group III nitride crystals using high-pressure vessel and group III nitride crystal
    38.
    发明授权
    High-pressure vessel for growing group III nitride crystals and method of growing group III nitride crystals using high-pressure vessel and group III nitride crystal 有权
    用于生长III族氮化物晶体的高压容器和使用高压容器和III族氮化物晶体生长III族氮化物晶体的方法

    公开(公告)号：US08236267B2

    公开(公告)日：2012-08-07

    申请号：US12455683

    申请日：2009-06-04

    申请人： Tadao Hashimoto ,  Edward Letts ,  Masanori Ikari

    发明人： Tadao Hashimoto ,  Edward Letts ,  Masanori Ikari

    IPC分类号： C01B21/06 ,  C30B23/00 ,  C23C16/00

    CPC分类号： C30B7/105 ,  B32B15/01 ,  C30B7/10 ,  C30B29/403 ,  C30B29/406 ,  C30B35/002 ,  Y10T428/12028

    摘要： The present invention discloses a high-pressure vessel of large size formed with a limited size of e.g. Ni—Cr based precipitation hardenable superalloy. The vessel may have multiple zones.For instance, the high-pressure vessel may be divided into at least three regions with flow-restricting devices and the crystallization region is set higher temperature than other regions. This structure helps to reliably seal both ends of the high-pressure vessel, and at the same time, may help to greatly reduce unfavorable precipitation of group III nitride at the bottom of the vessel.This invention also discloses novel procedures to grow crystals with improved purity, transparency and structural quality. Alkali metal-containing mineralizers are charged with minimum exposure to oxygen and moisture until the high-pressure vessel is filled with ammonia. Several methods to reduce oxygen contamination during the process steps are presented. Also, back etching of seed crystals and a new temperature ramping scheme to improve structural quality are disclosed.

    摘要翻译： 本发明公开了一种大尺寸的大型高压容器。 Ni-Cr基沉淀硬化型超合金。 船舶可能有多个区域。 例如，高压容器可以分为具有流量限制装置的至少三个区域，并且结晶区域设定为比其他区域更高的温度。 该结构有助于可靠地密封高压容器的两端，并且同时可有助于大大减少容器底部的III族氮化物的不利沉淀。 本发明还公开了提高纯度，透明度和结构质量的晶体生长的新方法。 含碱金属的矿化剂以最低的氧气和湿度暴露于高压容器中充满氨。 介绍了在工艺步骤中减少氧气污染的几种方法。 此外，公开了种晶的背面蚀刻和新的温度梯度方案以提高结构质量。

    CORROSION PROTECTION WITH AL / ZN-BASED COATINGS
    39.
    发明申请
    CORROSION PROTECTION WITH AL / ZN-BASED COATINGS 审中-公开
    具有AL / ZN基涂层的腐蚀保护

    公开(公告)号：US20120088115A1

    公开(公告)日：2012-04-12

    申请号：US13255965

    申请日：2010-03-12

    申请人： Ross McDowall Smith ,  Qiyang Liu ,  Bryan Andrew Shedden ,  Aaron Kiffer Neufeld ,  Joe Williams ,  David James Nolan ,  Wayne Renshaw

    发明人： Ross McDowall Smith ,  Qiyang Liu ,  Bryan Andrew Shedden ,  Aaron Kiffer Neufeld ,  Joe Williams ,  David James Nolan ,  Wayne Renshaw

    IPC分类号： B32B15/01 ,  B32B15/20 ,  B05D7/14 ,  B05D1/18 ,  B05D3/00

    CPC分类号： C23C2/12 ,  C23C2/06 ,  C23C2/14 ,  Y10T428/12021 ,  Y10T428/12028

    摘要： Red rust staining of Al/Zn coated steel strip in “acid rain” or “polluted” environments can be minimised by forming the coating as an Al—Zn—Si—Mg alloy coating with an OT:SDAS ratio greater than a value of 0.5:1, where OT is the overlay thickness on a surface of the strip and SDAS is the measure of the secondary dendrite arm spacing for the Al-rich alpha phase dendrites in the coating. Red rust staining in “acid rain” or “polluted” environments and corrosion at cut edges in marine environments can be minimised in Al—Zn—Si—Mg alloy coatings on steel strip by selection of the composition (principally Mg and Si) and solidification control (principally by cooling rate) and forming Mg2 Si phase particles of a particular morphology in interdendritic channels.

    摘要翻译： 通过将涂层作为Al-Zn-Si-Mg合金涂层，其OT / SDAS比例大于0.5，可以使“酸雨”或“污染”环境中的铝/锌涂层钢带的红锈染色最小化 ：1，其中OT是条带表面上的覆盖厚度，SDAS是涂层中富Al相α枝晶的二次枝晶臂间距的度量。 通过选择组成（主要是Mg和Si）和固化，可以在钢带上的Al-Zn-Si-Mg合金涂层中最小化“酸雨”或“污染”环境中的红锈污染和海洋环境切割边缘的腐蚀 控制（主要是通过冷却速度）和在枝晶间通道中形成特定形态的Mg2Si相颗粒。