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    Cathodic protection
    71.
    发明申请
    Cathodic protection 有权
    阴极保护

    公开(公告)号：US20020023848A1

    公开(公告)日：2002-02-28

    申请号：US09910931

    申请日：2001-07-24

    Inventor： David Whitmore

    IPC: C23F013/00

    CPC classification number: C23F13/16 ,  C23F2201/02

    Abstract: Cathodic protection of a structure including a steel member at least partly buried in a covering layer, such as steel rebar in a concrete structure, is provided by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and connecting the anodes to the rebar. Each anode is inserted into a drilled hole in the layer and is electrically attached to the rebar in the same or an adjacent hole by a steel pin which is attached to the reinforcement by arc welding or by impact. In the arrangement where the anode and the attachment are in the same hole, the pin passes into or through the anode so as to hold the anode rigidly within the hole. The hole is filled by a settable filler material. In order to maintain effective current conduction from the anode to the reinforcement through the filler and the concrete over an extended period to maintain the required protection, there is added to the filler, to a covering layer on the anode body or to the anode body itself a first material to hold the pH at the anode in a preferred range of the order of 12 to 14 and a second humectant material to absorb moisture.

    Abstract translation: 包括至少部分地埋在覆盖层中的钢构件的结构的阴极保护，例如混凝土结构中的钢筋，通过将牺牲阳极嵌入混凝土层中并且将阳极连接到钢筋上而提供 。 每个阳极插入层中的钻孔中，并通过电弧焊或冲击附着在钢筋上的钢销电连接到同一或相邻孔中的钢筋上。 在阳极和附件位于相同孔中的布置中，销穿过或穿过阳极，以将阳极刚性地保持在孔内。 孔由可固化的填充材料填充。 为了保持有效的电流从阳极通过填料和混凝土在一段较长时间内的电流传导，以保持所需的保护，将填料添加到阳极体或阳极体本身的覆盖层上 用于将pH保持在阳极的第一材料，优选范围为12至14，第二湿润剂材料吸收水分。

    Electrochemical treatment of reinforced concrete
    72.
    发明授权
    Electrochemical treatment of reinforced concrete 有权
    钢筋混凝土电化学处理

    公开(公告)号：US06332971B1

    公开(公告)日：2001-12-25

    申请号：US09601949

    申请日：2000-08-09

    Applicant: Andrew Hill

    Inventor： Andrew Hill

    IPC: C23F1300

    CPC classification number: C23F13/06 ,  C23F2201/02

    Abstract: Electric current of about 1 A/M2 is applied to reinforcement in concrete and the gases released are allowed to pass to the atmosphere via gas permeable set material in a hole alongside the electrode.

    Abstract translation: 约1A / M2的电流被施加到混凝土中的钢筋上，并且释放的气体可以通过电极旁边的孔中的气体渗透性固定材料通过。

    Cathodic protection system
    75.
    发明授权
    Cathodic protection system 有权
    阴极保护系统

    公开(公告)号：US06033553A

    公开(公告)日：2000-03-07

    申请号：US236731

    申请日：1999-01-25

    Applicant: Jack E. Bennett

    Inventor： Jack E. Bennett

    IPC: C23F13/02 ,  C23F13/00

    CPC classification number: C23F13/02 ,  C23F2201/02

    Abstract: The present invention relates to the field of cathodic protection of reinforced concrete. A conductive metal is thermally applied onto an exposed surface of the concrete in an amount effective to form an anode on the surface. This establishes an interface between the anode and the concrete. The thermal application is performed in a manner which is effective to impart permeability to the anode. A lithium salt solution selected from the group consisting of lithium nitrate solution, lithium bromide solution, and combinations thereof is applied to the external surface of the anode. The solution migrates by capillary attraction to the interface of the anode with the concrete depositing the lithium salt at the interface. The lithium salt functions as a current enhancing agent. The salt also functions as a humectant absorbing moisture from the atmosphere thereby providing an electrolyte at the interface. These combined effects substantially increase current delivery from the anode.

    Abstract translation: 本发明涉及钢筋混凝土的阴极保护领域。 将导电金属以有效在表面上形成阳极的量热施加到混凝土的暴露表面上。 这建立了阳极和混凝土之间的界面。 热施加以有效赋予阳极渗透性的方式进行。 将选自硝酸锂溶液，溴化锂溶液及其组合的锂盐溶液施加到阳极的外表面。 溶液通过毛细管吸引迁移到阳极的界面，并在混合物的界面处沉积锂盐。 锂盐作为电流增强剂起作用。 该盐还用作从大气吸收水分的湿润剂，从而在界面处提供电解质。 这些组合效应显着增加了来自阳极的电流输送。

    Basic oxygen process with iron oxide pellet addition
    77.
    发明授权
    Basic oxygen process with iron oxide pellet addition 失效
    氧化铁颗粒添加基本氧气

    公开(公告)号：US5897684A

    公开(公告)日：1999-04-27

    申请号：US839291

    申请日：1997-04-17

    Applicant: Chung S. Kim ,  Ken M. Goodson

    Inventor： Chung S. Kim ,  Ken M. Goodson

    IPC: C21C5/30 ,  C23F13/02

    CPC classification number: C23F13/02 ,  C23F2201/02 ,  C23F2213/22

    Abstract: A BOF process in which iron oxide units are added to the melt during the blow characterized in that the oxygen flow is reduced during pellet feeding and is replenished with inert gas so that the total gas flow remains the same as that designed to achieve optimum BOF performance.

    Abstract translation: 在吹塑过程中将氧化铁单元添加到熔体中的BOF方法，其特征在于在颗粒进料期间氧气流量减少，并且用惰性气体补充，使得总气体流量保持与设计成实现最佳BOF性能相同 。

    Method for preventing corrosion of a reinforced concrete structure
    79.
    发明授权
    Method for preventing corrosion of a reinforced concrete structure 失效
    防止钢筋混凝土结构腐蚀的方法

    公开(公告)号：US5341562A

    公开(公告)日：1994-08-30

    申请号：US51655

    申请日：1993-04-26

    Applicant: Akio Furuya ,  Toshimoto Tsuji ,  Takayuki Sato

    Inventor： Akio Furuya ,  Toshimoto Tsuji ,  Takayuki Sato

    IPC: C23F13/00 ,  H01R43/00

    CPC classification number: C23F13/06 ,  E04C5/015 ,  C23F2201/02 ,  Y10T29/49117

    Abstract: A method for preventing corrosion of a reinforced concrete structure having a reinforcing steel embedded therein, which comprises coating an aggregate-containing primer on the surface of the reinforced concrete structure, to form a primer layer having a rough surface, metal-spraying a metal having an ionization tendency larger than iron on the primer layer to form a metal spray coating layer, and connecting the metal spray coating layer and the reinforcing steel by an electrically conductive material.

    Abstract translation: 一种用于防止钢筋混凝土结构的腐蚀的方法，该钢筋混凝土结构体内嵌有钢筋，其包括在钢筋混凝土结构的表面上涂覆含聚集体的底漆，以形成具有粗糙表面的底漆层，金属喷涂金属， 在底漆层上大于铁的电离倾向，形成金属喷涂层，并通过导电材料连接金属喷涂层和钢筋。

    System for controlling corrosion in an environment in which thin layers of low-pH corrosive fluids are formed
    80.
    发明授权
    System for controlling corrosion in an environment in which thin layers of low-pH corrosive fluids are formed 失效
    在形成低pH腐蚀性液体的环境中控制腐蚀的系统

    公开(公告)号：US5290407A

    公开(公告)日：1994-03-01

    申请号：US291567

    申请日：1988-12-29

    Applicant: Barry C. Syrett ,  Gerhardus H. Koch ,  Neil G. Thompson

    Inventor： Barry C. Syrett ,  Gerhardus H. Koch ,  Neil G. Thompson

    IPC: C23F13/02 ,  G01N17/02 ,  C23F13/00

    CPC classification number: C23F13/02 ,  G01N17/02 ,  C23F2201/02

    Abstract: A system for preventing corrosion of a metallic surface in an environment in which a corrosive condensate with a pH of less than about 3 tends to form on the surface exposed to the environment. The system includes an absorbent lining formed from a concrete material that has a chemical resistance to a low pH and that increases the pH of the environment at the underlying metallic surface. The system further includes a counterelectrode and an electrochemical potential control means connected in electrical circuit with the metallic surface. An electrical potential is maintained upon the metallic surface sufficient to effect cathodic protection.

    Abstract translation: 在暴露于环境的表面上易于形成pH小于约3的腐蚀性凝析物的环境中的金属表面的腐蚀防止系统。 该系统包括由混凝土材料形成的吸收衬里，该混凝土材料对低pH具有耐化学腐蚀性，并且增加底层金属表面处的环境的pH。 该系统还包括与金属表面电连接的反电极和电化学电位控制装置。 在金属表面上保持电势足以实现阴极保护。

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