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    • 5. 发明申请
    • ACTIVATING MATRIX FOR CATHODIC PROTECTION
    • 用于阴极保护的激活矩阵
    • WO2007126715A3
    • 2008-07-31
    • PCT/US2007007317
    • 2007-03-24
    • BENNETT JOHN E
    • BENNETT JOHN E
    • C23F13/00C23F13/02C23F13/06C23F13/08C23F13/12C23F13/20
    • C04B28/02C04B20/1066C04B2111/265C23F13/02C23F2201/02C04B32/02C04B14/104C04B14/20
    • The galvanic cathodic protection of reinforced concrete structures such as bridges, buildings, parking structures, piers, and wharves, is enhanced by the use of an inert water absorbent solid. The absorbent solid and chemicals are mixed with a cementitious binder to form an activating matrix. This matrix surrounds a sacrificial metal anode such as zinc, or aluminum or their alloys. The metal anode is electrically connected to the ferrous reinforcing member by a metallic conductor. The water absorbent solid may be a clay such as bentonite or a hydrated mineral such as vermiculite. It is preferably in the form of discrete particles dispersed throughout the binder. The inclusion of the absorbent solid in the activating matrix serves to increase the protective current, thereby reducing corrosion of the reinforcing components of the concrete structure.
    • 钢筋混凝土结构如桥梁,建筑物,停车场,码头和码头的电气阴极保护通过使用惰性吸水固体得到增强。 将吸收固体和化学品与水泥粘合剂混合以形成活化基质。 该矩阵围绕牺牲金属阳极,例如锌或铝或其合金。 金属阳极通过金属导体与铁质加强构件电连接。 吸水性固体可以是粘土如膨润土或水合矿物如蛭石。 其优选为分散在整个粘合剂中的离散颗粒的形式。 将吸收性固体包含在活化基质中用于增加保护电流,从而减少混凝土结构的增强部件的腐蚀。
    • 6. 发明申请
    • ELECTROCHEMICAL SCALE INHIBITION
    • 电化学尺寸抑制
    • WO2004016833A3
    • 2004-07-08
    • PCT/CA0301200
    • 2003-08-11
    • ALCAN INT LTDBREAULT RAYMOND
    • BREAULT RAYMOND
    • C25F1/04C23F13/02
    • C23F13/02
    • The invention relates to a process of reducing scaling of a metal surface exposed to an aqueous solution from which scale may form after a period of exposure. The process comprises applying a cathodic potential to the surface for at least some of the period of exposure. In some cases, e.g. when an article is made of a ferrous metal, it is advantageous to coat the article with a different metal (e.g. copper or an alloy of copper) before applying the cathodic potential to avoid hydrogen generation and excessive current flow. An article to be protected from scaling may also advantageously be electrically isolated from other parts of an apparatus.
    • 本发明涉及一种降低暴露于水溶液中的金属表面的垢的方法,其在暴露一段时间后可形成氧化皮。 该方法包括在暴露周期的至少一些期间向表面施加阴极电位。 在某些情况下,例如 当物品由黑色金属制成时,在施加阴极电位之前,用不同的金属(例如铜或铜的合金)涂覆制品是有利的,以避免产生氢气和过量的电流。 要防止结垢的物品也可以有利地与设备的其它部分电隔离。
    • 7. 发明申请
    • ELECTROCHEMICAL SCALE INHIBITION
    • 电化学阻垢
    • WO2004016833A2
    • 2004-02-26
    • PCT/CA2003/001200
    • 2003-08-11
    • ALCAN INTERNATIONAL LIMITEDBREAULT, Raymond
    • BREAULT, Raymond
    • C25F1/04
    • C23F13/02
    • The invention relates to a process of reducing scaling of a metal surface exposed to an aqueous solution from which scale may form after a period of exposure. The process comprises applying a cathodic potential to the surface for at least some of the period of exposure. In some cases, e.g. when an article is made of a ferrous metal, it is advantageous to coat the article with a different metal (e.g. copper or an alloy of copper) before applying the cathodic potential to avoid hydrogen generation and excessive current flow. An article to be protected from scaling may also advantageously be electrically isolated from other parts of an apparatus.
    • 本发明涉及一种减少暴露于水溶液中的金属表面的结垢的方法,所述水溶液在暴露一段时间后可能形成水垢。 该方法包括在暴露的至少一段时间内对表面施加阴极电位。 在某些情况下,例如 当制品由黑色金属制成时,在施加阴极电位以避免氢气产生和过量电流流动之前,用不同金属(例如铜或铜合金)涂覆制品是有利的。 要防止结垢的物品也可以有利地与装置的其他部分电隔离。
    • 10. 发明申请
    • IMPROVED PROCESS OF PREVENTING OXIDATION OF METAL BY CAPACITIVE COUPLING
    • 通过电容耦合预防金属氧化的改进方法
    • WO1988004334A1
    • 1988-06-16
    • PCT/US1987003108
    • 1987-12-03
    • COWATCH, GeorgeCOWATCH, George, Sr.
    • C23F13/02
    • C23F13/02
    • Effective processes of preventing the oxidation of metal objects by capacitive coupling. These processes are particularly suited to preventing the oxidation of metal objects which are not grounded to the earth, such as automobiles and trucks. These processes significantly reduce the rate of oxidation of such metal objects. An electric current is impressed into the metal object by treating the metal object as the negative plate of a capacitor. This is achieved by a capacitive coupling between the metal object, a dielectric material and a positive plate. Pulses of direct current are provided to the positive plate. The metal object has a common ground with the means for providing the pulses. When the metal object is not grounded to the earth, then the preferred process includes means to provide an electrical connection between the positive plate and the earth ground through a high voltage diode which is adapted to allow the flow of electrons from the earth ground to the positive plate but prevent the flow of electrons from the positive plate to the earth ground.
    • 通过电容耦合防止金属物体氧化的有效过程。 这些方法特别适用于防止不接地的金属物体如汽车和卡车的氧化。 这些过程显着降低了这种金属物体的氧化速率。 通过将金属物体作为电容器的负极板进行处理,将电流注入到金属物体中。 这通过金属物体,电介质材料和正极板之间的电容耦合来实现。 将直流脉冲提供给正极板。 金属物体具有用于提供脉冲的装置的公共地面。 当金属物体没有接地到地球时,优选的方法包括通过高压二极管在正极板和接地端之间提供电连接的装置,该高压二极管适于允许电子从地面流到 正极板,但防止电子从正极板流到地面。