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17 条记录 (耗时 0.012 秒)

    Diffusion of elements into steel by catalyzed oxide reduction
    1.
    发明授权
    Diffusion of elements into steel by catalyzed oxide reduction 失效
    通过催化氧化还原将元素扩散到钢中

    公开(公告)号：US4904500A

    公开(公告)日：1990-02-27

    申请号：US255895

    申请日：1988-10-11

    申请人： Richard C. Krutenat

    发明人： Richard C. Krutenat

    IPC分类号： C23C10/46

    CPC分类号： C23C10/46

    摘要： A process for diffusing silicon into iron or iron alloy by heating the iron or iron alloy with silica and a suitable reducing agent in the presence of a catalyst.

    摘要翻译： 通过在催化剂存在下，用二氧化硅和合适的还原剂加热铁或铁合金将硅扩散到铁或铁合金中的方法。

    Process for diffusing silicon into sheet steel
    2.
    发明授权
    Process for diffusing silicon into sheet steel 失效
    将硅分解成钢板的方法

    公开(公告)号：US3615917A

    公开(公告)日：1971-10-26

    申请号：US3615917D

    申请日：1969-07-11

    申请人： BETHLEHEM STEEL CORP

    发明人： SHIN PAIK W ,  WILLISON RICHARD M

    IPC分类号： B22D43/00 ,  B22D37/00 ,  C23C10/30 ,  C23C10/46 ,  F27D3/15 ,  H01F1/16 ,  C21D7/02 ,  C23C9/00

    CPC分类号： C23C10/46 ,  C23C10/30

    摘要： A process for solid-state diffusion of silicon into sheet steel containing not more than 0.05 percent carbon, the process including preparing sheet steel by conventional methods of melting, pouring and rolling, coating the surfaces of the sheet steel with a layer of powder containing about 15 percent to about 95 percent silicon and the remainder substantially calcium, iron and incidental impurities, compacting the powder onto the sheet and heat treating the composite thus formed in a protective environment to cause a solid-state diffusion of the diffusible silicon into the sheet steel.

    Surface modification of high temperature iron alloys
    3.
    发明授权
    Surface modification of high temperature iron alloys 失效
    高温铁合金表面改性

    公开(公告)号：US5421914A

    公开(公告)日：1995-06-06

    申请号：US135295

    申请日：1993-10-12

    申请人： Jong-Hee Park

    发明人： Jong-Hee Park

    IPC分类号： C23C10/46 ,  C23C12/00 ,  C23C14/10 ,  C23C16/40 ,  C23C8/06

    CPC分类号： C23C16/401 ,  C23C10/46 ,  C23C12/00 ,  C23C14/10

    摘要： A method and article of manufacture of a coated iron based alloy. The method includes providing an iron based alloy substrate, depositing a silicon containing layer on the alloy surface while maintaining the alloy at a temperature of about 700.degree. C.-1200.degree. C. to diffuse silicon into the alloy surface and exposing the alloy surface to an ammonia atmosphere to form a silicon/oxygen/nitrogen containing protective layer on the iron based alloy.

    摘要翻译： 一种涂覆铁基合金的方法和制品。 该方法包括提供铁基合金基底，在合金表面上沉积含硅层，同时将合金保持在约700℃-1200℃的温度以将硅扩散到合金表面中并将合金表面暴露于 氨气氛，在铁基合金上形成含硅/氧/氮的保护层。

    Surface modification to improve fireside corrosion resistance of Fe-Cr ferritic steels
    6.
    发明申请
    Surface modification to improve fireside corrosion resistance of Fe-Cr ferritic steels 失效
    改善Fe-Cr铁素体钢的炉边耐腐蚀性能进行表面改性

    公开(公告)号：US20070037009A1

    公开(公告)日：2007-02-15

    申请号：US11374849

    申请日：2006-03-14

    申请人： Jong-Hee Park ,  Krishnamurti Natesan ,  David Rink

    发明人： Jong-Hee Park ,  Krishnamurti Natesan ,  David Rink

    IPC分类号： C23C10/46 ,  C23C10/48

    CPC分类号： C23C10/52 ,  C23C10/46 ,  C23C10/50 ,  Y10T428/12958

    摘要： An article of manufacture and a method for providing an Fe—Cr ferritic steel article of manufacture having a surface layer modification for corrosion resistance. Fe—Cr ferritic steels can be modified to enhance their corrosion resistance to liquid coal ash and other chemical environments, which have chlorides or sulfates containing active species. The steel is modified to form an aluminide/silicide passivating layer to reduce such corrosion.

    摘要翻译： 一种用于提供具有耐腐蚀性的表面层改性的Fe-Cr铁素体钢制品的制造方法和方法。 Fe-Cr铁素体钢可以改性，以增强其对液态煤灰和其他具有含有活性物质的氯化物或硫酸盐的化学环境的耐腐蚀性。 钢被改性以形成铝化物/硅化物钝化层以减少这种腐蚀。

    Method for treating continuous extended lengths of tubular member interiors
    7.
    发明授权
    Method for treating continuous extended lengths of tubular member interiors 失效
    用于处理连续延长长度的管状构件内部的方法

    公开(公告)号：US5455068A

    公开(公告)日：1995-10-03

    申请号：US233919

    申请日：1994-04-28

    申请人： William L. Aves, Jr. ,  Gary A. Aves

    发明人： William L. Aves, Jr. ,  Gary A. Aves

    IPC分类号： C23C8/70 ,  C23C12/02 ,  C23C10/46

    CPC分类号： C23C8/70 ,  C23C12/02

    摘要： A chemical vapor deposition method is provided for case hardening a ferrous metal interior tubular surface by exposure to diffusible boron with or without other diffusible elements such as silicon to enhance the wear, abrasion and corrosion resistance of the surface. The pack composition used allows for borosiliconizing of the interior surface without sintering or adhering to itself and/or adhering to the surface. The pack composition comprises between about 5% and about 20% by weight of a suitable source of boron; between about 2% and about 10% by weight of silicon material; between about 2% and about 15% by weight of an activator; and the balance being a non-sintering, non-adhering filler. The pack composition is substantially free of diffusible carbon thereby minimizing carburization of the interior surface of the tubular member, and remains free-flowing after the heating and cooling steps, to permit the treatment of continuous lengths of the interior surface of the tubular member whereby the pack composition flows freely from the tubular member interior after the treatment.

    摘要翻译： 提供了一种化学气相沉积方法，用于通过暴露于具有或不具有其它可扩散元素如硅的可扩散硼来硬化黑色金属内部管状表面，以增强表面的耐磨性，耐磨性和耐腐蚀性。 所使用的包装组合物允许内部表面的硼硅酸化，而不烧结或粘附到其自身和/或粘附到表面。 包装组合物包含约5重量％至约20重量％的合适的硼源; 约2％至约10％的硅材料; 约2％至约15％重量的活化剂; 余量为非烧结，无粘附填料。 包装组合物基本上不含可扩散的碳，从而最小化管状构件的内表面的渗碳，并且在加热和冷却步骤之后保持自由流动，以允许处理管状构件的内表面的连续长度，由此 包装组合物在处理后从管状构件内部自由流动。