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188 条记录 (耗时 0.013 秒)

    Densified carbonaceous bodies with improved surface finishes
    51.
    发明授权
    Densified carbonaceous bodies with improved surface finishes 失效

    公开(公告)号：US4548957A

    公开(公告)日：1985-10-22

    申请号：US689842

    申请日：1985-01-09

    申请人： Edward E. Hucke

    发明人： Edward E. Hucke

    IPC分类号： C04B35/52 ,  C08J9/02

    CPC分类号： C04B35/521 ,  Y10T428/30

    摘要： A liquid impregnant containing furfural, an acid catalyst and a pore-forming agent comprising a surfactant, e.g. a polyalkylene oxide adduct, is impregnated into fine grained, isotropic graphite bodies and then polymerized and pyrolyzed. An increase in the density of the impregnated body and an improved surface finish is obtained by means of the liquid impregnant and method of this invention.

    Method and apparatus for impregnating porous electrodes or the like
    52.
    发明授权
    Method and apparatus for impregnating porous electrodes or the like 失效
    浸渍多孔电极等的方法和装置

    公开(公告)号：US4517137A

    公开(公告)日：1985-05-14

    申请号：US557403

    申请日：1983-11-30

    申请人： Christian O. Schon

    发明人： Christian O. Schon

    IPC分类号： C04B35/52 ,  C04B41/47 ,  C04B41/82 ,  C04B41/85 ,  C01B31/00

    CPC分类号： C04B41/009 ,  C04B35/521 ,  C04B41/478 ,  C04B41/82

    摘要： Carbon electrodes are impregnated with pitch during transport in mobile vessels which first travel to a heating station where the electrodes are heated in several stages by gases which are hotter from stage to stage. The vessels next travels to a station where the sealed vessels are connected with a suction pump to evacuate the fluid from their interiors and from the pores of the electrodes therein and where the vessels are substantially filled with pitch which is caused to penetrate into the empty pores. The vessels then travel to a station where the contents of the vessels are pressurized to ensure complete permeation of electrodes with pitch. The vessels subsequently travel an optional station where the electrodes in the vessels are baked to convert the pitch into coke, and to one or more cooling stations where the electrodes are heated by air, water and/or nitrogen. Fumes which develop during heating, evacuation of fluid from the pores, baking and cooling are filtered to avoid contamination of the surrounding area.

    摘要翻译： 碳素电极在运输过程中在移动容器中浸渍沥青，首先运行到加热站，在这些加热站中电极由多个阶段加热，这些气体逐步加热。 随后的船只行进到一个站，其中密封的容器与一个抽吸泵相连接，以从其内部和从其中的电极的孔排出流体，并且其中容器基本上充满了被渗入空隙中的沥青 。 然后，船只行驶到容器的内容物被加压的站，以确保具有沥青的电极完全渗透。 随后的船只行驶在容器中的电极被烘烤以将沥青转化为焦炭的可选择的工位，以及一个或多个冷却站，其中电极被空气，水和/或氮气加热。 在加热期间发生的烟雾，从孔中排出液体，烘烤和冷却，以过滤以避免周围区域的污染。

    Method for depositing a uniform layer of particulate material on the surface of an article having interconnected porosity
    53.
    发明授权
    Method for depositing a uniform layer of particulate material on the surface of an article having interconnected porosity 失效
    在具有互连多孔性的制品的表面上沉积均匀的颗粒材料层的方法

    公开(公告)号：US4452832A

    公开(公告)日：1984-06-05

    申请号：US426364

    申请日：1982-09-29

    申请人： George E. Wrenn, Jr. ,  John Lewis, Jr.

    发明人： George E. Wrenn, Jr. ,  John Lewis, Jr.

    IPC分类号： B05D1/18 ,  B05D7/24 ,  C04B35/52 ,  C04B35/83 ,  C04B41/45 ,  C04B41/50 ,  C04B41/81 ,  C04B41/85 ,  B05D3/02 ,  B05D3/12

    CPC分类号： B05D1/18 ,  B05D7/22 ,  C04B35/521 ,  C04B35/83 ,  C04B41/4505 ,  C04B41/5001 ,  C04B41/81 ,  C04B41/85 ,  B05D3/0493

    摘要： The invention is a method for depositing liquid-suspended particles on an immersed porous article characterized by interconnected porosity. In one form of the invention, coating is conducted in a vessel containing an organic liquid supporting a colloidal dispersion of graphite sized to lodge in surface pores of the article. The liquid comprises a first volatile component (e.g., acetone) and a second less-volatile component (e.g., toluene) containing a dissolved organic graphite-bonding agent. The liquid also contains an organic agent (e.g., cellulose gum) for maintaining the particles in suspension. A porous carbon article to be coated is immersed in the liquid so that it is permeated therewith. While the liquid is stirred to maintain a uniform blend, the vessel headspace is evacuated to effect flashing-off of the first component from the interior of the article. This causes particle-laden liquid exterior of the article to flow inwardly through its surface pores, lodging particles in these pores and forming a continuous graphite coating. The coated article is retrieved and heated to resin-bond the graphite. The method can be used to form a smooth, adherent, continuous coating of various materials on various porous articles. The method is rapid and reproducible.

    摘要翻译： 本发明是一种在悬浮的多孔制品上沉积液体悬浮颗粒的方法，其特征在于相互连接的多孔性。 在本发明的一种形式中，涂覆在包含支持石墨的胶体分散体的有机液体的容器中进行，其尺寸设置成滞留在制品的表面孔中。 液体包含含有溶解的有机石墨粘合剂的第一挥发性组分（例如丙酮）和第二不易挥发组分（例如甲苯）。 液体还含有用于将颗粒保持在悬浮液中的有机试剂（例如纤维素胶）。 将待涂覆的多孔碳制品浸入液体中以使其渗透。 当液体被搅拌以保持均匀的混合物时，容器顶部空间被排空以实现第一部件从制品内部的闪蒸。 这使得制品的含颗粒的液体外部通过其表面孔向内流动，将这些孔中的颗粒倒伏并形成连续的石墨涂层。 将涂覆的制品回收并加热以将石墨树脂粘合。 该方法可用于在各种多孔制品上形成各种材料的光滑，粘附，连续的涂层。 该方法快速可重复。

    System for automatically transferring carbon electrodes from a drying palette onto a pitch impregnation palette
    54.
    发明授权
    System for automatically transferring carbon electrodes from a drying palette onto a pitch impregnation palette 失效
    用于将碳电极从干燥调色板自动转移到沥青浸渍调色板上的系统

    公开(公告)号：US4087011A

    公开(公告)日：1978-05-02

    申请号：US760501

    申请日：1977-01-19

    申请人： Toru Taniguchi

    发明人： Toru Taniguchi

    IPC分类号： B65G47/52 ,  B65G1/00 ,  B66C17/06 ,  C04B35/52 ,  C04B41/81 ,  C04B41/82 ,  H05B7/109 ,  B65G67/00

    CPC分类号： B65G1/00 ,  C04B35/521

    摘要： In order to improve mechanical and electric characteristics of carbon electrodes, they are impregnated with pitch. This impregnation operation can be accomplished at high efficiency by loading a plurality of electrodes on a specific pallet. However, when the carbon electrode-loaded pallet is dipped in an impregnation vessel, pitch adheres to the pallet, and if such pitch-adhering pallet loading fresh carbon electrodes thereon is introduced again into a pre-heating furnace prior to the impregnation operation, the pre-heating furnace is contaminated with pitch and there is a risk of a fire. In order to avoid this disadvantage, there is adopted a method in which different pallets are used for introducing carbon electrodes into the pre-heating furnace and for introducing them into the impregnation vessel, respectively. In this method, the operation of shifting carbon electrodes from one pallet to another pallet is necessary. In this invention, a specific shifting method is adopted for preventing carbon electrodes from being damaged or broken during the shifting operation.

    摘要翻译： 为了提高碳电极的机械和电气特性，它们以沥青浸渍。 这种浸渍操作可以通过在特定托盘上装载多个电极而以高效率完成。 然而，当将装载有碳电极的托盘浸渍在浸渍容器中时，沥青附着在托盘上，并且如果在其上装载新鲜碳电极的沥青粘合托盘在浸渍操作之前再次引入预热炉中， 预热炉被沥青污染，有发生火灾的危险。 为了避免这个缺点，采用了不同的托盘用于将碳电极引入预热炉并将它们引入浸渍容器中的方法。 在这种方法中，需要将碳电极从一个托盘移动到另一托盘的操作。 在本发明中，采用特定的换挡方法来防止碳电极在换档操作期间损坏或破损。

    Process for producing refractories
    55.
    发明授权
    Process for producing refractories 失效
    生产耐火材料的工艺

    公开(公告)号：US4009308A

    公开(公告)日：1977-02-22

    申请号：US587970

    申请日：1975-06-18

    申请人： Zenbutsu Tadashi ,  Asami Hajime ,  Uemura Seiichi ,  Hirose Takao

    发明人： Zenbutsu Tadashi ,  Asami Hajime ,  Uemura Seiichi ,  Hirose Takao

    IPC分类号： C04B35/01 ,  C04B35/52 ,  C04B35/66 ,  C04B41/47 ,  C04B41/82 ,  C04B41/83 ,  C04B41/04

    CPC分类号： C04B35/66 ,  C04B35/013 ,  C04B35/521 ,  C04B41/009 ,  C04B41/478 ,  C04B41/82 ,  Y10T428/249994 ,  Y10T428/31815

    摘要： A process for producing refractories wherein an impregnant is filled into open pores of the refractories. The impregnant is the thermoplastic resinous material which is obtained by removing a light fraction having a boiling point of less than 200.degree. C under a reduced pressure of 100 mmHg and having a benzene-insoluble fraction content of less than 10% by weight from at least one member selected from the group consisting of a heavy oil obtained by the steam cracking of petroleum and the polymerization product of said heavy oil. The slag penetration resistance, slag erosion resistance and slaking resistance of the impregnated refractories are improved thereby.

    摘要翻译： 一种生产耐火材料的方法，其中将浸渍剂填充到耐火材料的开孔中。 浸渍剂是热塑性树脂材料，其通过在100mmHg的减压下除去沸点低于200℃的轻馏分并且至少从至少除去不溶于10重量％的苯不溶组分含量获得 一种选自由通过石油蒸汽裂化获得的重油和所述重油的聚合产物组成的组。 耐浸渍性耐火材料的耐熔渣性，耐熔渣性和耐铁腐蚀性得到改善。