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182 条记录 (耗时 0.03 秒)

    High collapse pressure porous filter device
    81.
    发明授权
    High collapse pressure porous filter device 失效
    高塌陷压力多孔过滤装置

    公开(公告)号：US5656166A

    公开(公告)日：1997-08-12

    申请号：US419452

    申请日：1995-04-10

    申请人： Staffan B. Linnersten ,  Anatolie Hobet

    发明人： Staffan B. Linnersten ,  Anatolie Hobet

    IPC分类号： B01D29/01 ,  B01D29/11 ,  B01D39/20 ,  B01D46/24 ,  B01D27/02

    CPC分类号： B01D46/2411 ,  B01D29/012 ,  B01D29/111 ,  B01D39/2034 ,  B01D2201/188 ,  B01D2275/10 ,  B01D2275/305

    摘要： A substantially cylindrical, unitized filter element for separating contaminant material from a flowing media includes an outer, substantially cylindrical wall portion which is fabricated by a two step process involving both a compacting step followed by a sintering step. The result of these processing steps is to create a rigid, porous filtering matrix. The filter element also includes an inner, substantially cylindrical wall portion which is also constructed through a two step process of a granular material which has been compacted and sintered into a rigid and porous filtering matrix. Disposed between the two cylindrical wall portions is a substantially cylindrical structural support member which is fabricated from a non-restrictive material and a material which is compatible with the material selected for the inner and outer wall portions. The structural support member is positioned between the two wall portions prior to the compacting process step and is sintered to the outer and inner wall portions in order to create a unitized filter element.

    摘要翻译： 用于从流动介质分离污染物质的基本上圆柱形的单元化过滤元件包括外部基本上圆柱形的壁部分，其通过包括压实步骤之后是烧结步骤的两步工艺制造。 这些处理步骤的结果是创建刚性的多孔过滤矩阵。 过滤元件还包括内部基本上圆柱形的壁部分，其也通过已经压实并烧结成刚性和多孔过滤基质的颗粒材料的两步法制成。 设置在两个圆柱形壁部之间的是基本上圆柱形的结构支撑构件，其由非限制性材料制成，并且与与内壁部分和外壁部分选择的材料相容的材料制成。 结构支撑构件在压实加工步骤之前定位在两个壁部分之间，并且被烧结到外壁部分和内壁部分，以便形成一个单元化的过滤元件。

    Oxidation resistant metal particulates and media and methods of forming the same with low carbon content
    84.
    发明授权
    Oxidation resistant metal particulates and media and methods of forming the same with low carbon content 失效
    耐氧化金属颗粒和介质以及低碳含量的形成方法

    公开(公告)号：US5378426A

    公开(公告)日：1995-01-03

    申请号：US964266

    申请日：1992-10-21

    申请人： Stephen A. Geibel ,  John L. Hurley ,  Sandra L. Brosious

    发明人： Stephen A. Geibel ,  John L. Hurley ,  Sandra L. Brosious

    IPC分类号： B01D39/20 ,  B22F3/11 ,  B22F5/00 ,  C22C1/08 ,  C23C10/06 ,  C23C10/14 ,  B22F1/00 ,  C22C29/00

    CPC分类号： B01D39/2044 ,  B01D39/2034 ,  B22F3/11 ,  B22F3/114 ,  C23C10/06 ,  C23C10/14 ,  B22F2998/00 ,  B22F2999/00 ,  Y10T428/12424 ,  Y10T428/12438

    摘要： Metal particulates and porous metal media, which have enhanced resistance to undesirable oxidation, and methods of producing the same are provided. The porous metal media comprise sintered metal particulates each typically having a core and a surface and a diameter in the range of 0.25 to 50 micrometers, the particulates comprising at least about 60 wt. % of a base metal including at least one of iron and nickel, at least about 11 wt. % chromium and no more than about 0.03 wt. % carbon. The surfaces of the particulates are enriched with at least one treatment element in an amount and depth sufficient to enhance the resistance of the particulates to undesirable oxidation. The invention also includes a fine metal filter medium formed from sintered metal fibers, which has enhanced resistance to corrosion and/or to high temperature oxidation. A method of enhancing the resistance of a porous metal medium to undesirable oxidation is also provided which includes heating a porous metal medium formed from sintered metal particulates having a diameter in the range of 0.25 to 50 micrometers and a composition comprising (a) at least about 60 wt. % of a base metal including at least one of iron and nickel, (b) at least about 11 wt. % chromium and (c) no more than about 0.03 wt. % carbon, in the presence of a pack composition comprising a treatment element, an activator and a diluent, at a temperature of at least about 700.degree. C.

    摘要翻译： 提供了具有增强的耐氧化性的金属颗粒和多孔金属介质及其制备方法。 多孔金属介质包括烧结金属颗粒，每个颗粒通常具有芯和表面，直径在0.25至50微米的范围内，颗粒包含至少约60重量％ ％的包含铁和镍中的至少一种的贱金属，至少约11重量％ ％铬，不超过约0.03wt。 ％ 碳。 颗粒的表面富含至少一种处理元素，其量和深度足以增强颗粒对不期望氧化的抵抗力。 本发明还包括由烧结金属纤维形成的细金属过滤介质，其具有增强的耐腐蚀性和/或高温氧化性。 还提供了一种增强多孔金属介质对不期望的氧化的电阻的方法，其包括加热由直径在0.25至50微米范围内的烧结金属微粒形成的多孔金属介质和包含（a）至少约 60重量％ 包括至少一种铁和镍的贱金属的％，（b）至少约11重量％ ％铬和（c）不超过约0.03重量％ 在包含处理元素，活化剂和稀释剂的包装组合物的存在下，在至少约700℃的温度下，

    Ultra-high efficiency porous metal filter
    90.
    发明授权
    Ultra-high efficiency porous metal filter 失效
    超高效多孔金属过滤器

    公开(公告)号：US5114447A

    公开(公告)日：1992-05-19

    申请号：US665963

    申请日：1991-03-12

    申请人： Christopher B. Davis

    发明人： Christopher B. Davis

    IPC分类号： B01D39/20 ,  B01D46/00 ,  B01D46/12 ,  B01D46/54 ,  B22F3/11

    CPC分类号： B01D46/0012 ,  B01D39/2034 ,  B01D46/12 ,  B22F3/1103

    摘要： An ultra-high efficiency particulate air filter for use in the microelectronics manufacturing industry is formed as a fully homogeneous sintered metal filter that exhibits an efficiency substantially in excess of a 6 log reduction and preferably equal to or exceeding a 9 log reduction (an efficiency of 99.9999999%). The filter can be used as a process gas in-line filter in state of the art gas supply systems. The porous metal filter exhibits long term stability relative to mechanical or thermal stress and operates within the desired ultra-high efficiency levels even under high pressure conditions. It does not exhibit an outgassing problem and there is no particle shedding. These features are provided within a unit no larger than those conventionally employed heretofore with organic membranes and under substantially identical operating conditions.