Class 205/741 - Containing iron

Subclass of Class 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
Definition: Subject matter in which the metal or metal alloy contains
No. of patents: 36
Last issue date: 09/09/2008

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Number	Title	Issue Date
7422789	Cathodic protection coatings containing carbonaceous conductive media A cathodic protection polymeric compound is disclosed. The compound has flowable material to serve as a binder, carbonaceous conductive media dispersed in the flowable material, sacrificial metal particles also dispersed in the flowable material. The carbonaceous co...	09/09/2008
6565735	Process for electrolytic pickling using nitric acid-free solutions A process for electrolytic pickling of stainless steel of the ferritic, martensitic, austenitic and duplex series as well as superaustenitic and superferritic steels, nickel or Ni/Cr-based super alloys, and titanium and its alloys is provided. The process...	05/20/2003
6531048	Electrochemical process to sever metal fibers A process including: (a) creating an electrolytic cell composed of a metal surface as a first electrode, a second electrode, and an electrolytic solution, wherein the metal surface has a plurality of metal fibers connected to the metal surface; and (b) tr...	03/11/2003
6506294	Process for regeneration of electrolytes from pickle liquor, in particular of NA2S04 from pickle liquor for stainless steel A process for regeneration of electrolytes, in particular Na2 SO4, from waste pickles created during picking of stainless steel, in particular stainless steel strips. The electrolytes are regenerated by adding Nax Hy	01/14/2003
6495026	Process to sever metal fibers using galvanic cell A process including: creating a galvanic cell composed of a substrate as an anode, a cathode, and an electrolytic solution, wherein the substrate includes a metal surface having a plurality of metal fibers connected to the metal surface, wherein the catho...	12/17/2002
6258248	Process for dezincing galvanized steel using an electrically isolated conveyor A process for removing zinc from galvanized steel. The galvanized steel is immersed in an electrolyte containing at least about 15% by weight of sodium or potassium hydroxide and having a temperature of at least about 75° C. and the zinc is galvanically ...	07/10/2001
6245210	Ice having sterilizing power and manufacturing method thereof Disclosed is ice having a hypohalogenous acid concentration of 10 ppm or more and a melting point of -0.03° C. This ice has sufficient sterilizing power resulting from hypohalogenous acid having the above concentration and can be used in the state of ice...	06/12/2001
6214203	Anodic encasement corrosion protection system for pipe and appurtenances, and metallic components thereof Corrosible metallic elements of pipe are protected by an anodic encasement sleeve. The anodic encasement sleeve employs an inner sacrificial anodic layer and an outer environmental barrier layer to provide both cathodic and barrier protection against corr...	04/10/2001
6045686	Method and apparatus for electrochemical delacquering and detinning A process for the delacquering and detinning of a metal substrate is presented comprising the fully electrochemical removal of both an outer polymeric coating and an inner tin coating from a metal substrate. The disclosed method provides a clean metal sub...	04/04/2000
6042713	Method for removing metal contaminants A device and method for removing metal or mineral deposits from surfaces (eg. surfaces of oil drilling equipment) by creating an electrochemical cell of which the contaminated surface is a part....	03/28/2000
6030519	Electrode pad for debonding paint from a metal substrate A method of electrolytically separating a paint coating from a metal surface comprising the steps of providing a metal member having a surface having a paint coating thereon and contacting the member with an essentially neutral electrolytic solution. The ...	02/29/2000
6022468	Electrolytic hardening process The method is provided for hardening carbon steel by using electrolysis and a pulsed direct current supply....	02/08/2000
5916431	Filter cleaning During filtration, periodic application of a potential difference between an electrically conducting filter medium and counter electrode (as anode) generates a gaseous product at the filter and cleans the filter. To minimise corrosion the counter electrod...	06/29/1999
5868920	Method for inhibition of growth of organisms on faces of constructions submerged in a liquid The invention concerns a method for inhibition of growth of organisms on faces of constructions (11) submerged in a liquid. In themethod, an electrically conductive structure (11) to be protected is connected as the cathode of a source (14) of direct curr...	02/09/1999
5855765	Process for dezincing galvanized steel using an electrically isolated conveyor A process for removing zinc from galvanized steel. The galvanized steel is immersed in an electrolyte containing at least about 15% by weight of sodium or potassium hydroxide and having a temperature of at least about 75° C. and the zinc is galvanically ...	01/05/1999
5840173	Process for treating the surface of material of high-grade steel A process for treating the surface of material composed of high-grade steel, particularly strip-shaped material, wherein the material is treated with a pickling solution in a least one container and is subsequently rinsed. The solution used as the picklin...	11/24/1998
5667649	Corrosion-resistant ferrous alloys for use as impressed current anodes Impressed current anodes such as cathodic protection anodes comprise iron based alloys including less than 70% iron and less than 0.1% carbon. Additional components may include molybdenum, chromium, nickel and others. The iron based alloy may itself compr...	09/16/1997
5545311	Filter cleaning An electrically conducting filter medium (20) is cleaned in situ by applying, at intervals, a brief voltage pulse between the medium (20) and a counter electrode (18) so the process liquid undergoes electrolysis. The cleaning process is significantly impr...	08/13/1996
5312526	Method for increasing or decreasing bond strength between concrete and embedded steel, and for sealing the concrete-to-steel interface A process for adjusting the steel-to-concrete bond strength in a hardened concrete structure having embedded steel elements. A source of DC voltage, preferably in the range of 5-40 volts, is connected at its negative side to the embedded steel and at its ...	05/17/1994
5045160	Process for the electrochemical separation of metal mixtures and metal alloys The process for the electrochemical separation of metal mixtures and metal alloys comprises the steps of dissolving the starting material in an elecrolyte, substituting the metals dissolved in the electrolytic solution in succession in accordance with the...	09/03/1991
4975335	Fe-Mn-Al-C based alloy articles and parts and their treatments This application is a continuation-in-part of application Ser. No. 07/218695, filed Aug. 8, 1988. This invention describes a series of Fe-Mn-Al-C based corrosion resistance alloys. It also describes how to obtain such alloys which has comparable good corr...	12/04/1990
4851092	Process for electrolytically pickling chromium-containing stainless steel In a process for the electrolytic pickling of chromium-containing stainless steel, pickling proceeds initially in an aqueous Na2 SO4 solution and subsequently in acid, preferably mixed acid. The CrO42- formed i...	07/25/1989
4744875	Steel refining with an electrochemical cell Apparatus for processing a metallic fluid containing iron oxide, container for a molten metal including an electrically conductive refractory disposed for contact with the molten metal which contains iron oxide, an electrolyte in the form of a basic slag ...	05/17/1988
4650700	Method for surface treatment of metal blanks Surface treatment of metal blanks is achieved by applying an oxirane ring-containing compound in the gas phase to the surface of a metal blank maintained at a high temperature. According to this method, a covering layer which is much thinner than a conven...	03/17/1987
4624760	Filter cleaning A porous electrically conducting filter, e.g. a membrane for filtration equipment, is cleaned by setting up an electrochemical cell comprising the membrane as a first electrode (usually the cathode), a second electrode, and an electrolyte capable of being...	11/25/1986
4493239	Range clearance by enhancing oxidation of ferrous ordnance in-situ A method of clearing a target range or other area of buried unexploded ornce (UXO) by advancing natural galvanic electrochemical corrosion whereby ferrous parts of the UXO is simply rusted away at an accelerated rate and rendered harmless within 5 to 10 ...	01/15/1985
4462878	Method of treating and refining liquid metal alloys by direct current electric arc heating Method of and apparatus for treating and refining liquid metal alloys by direct current arc heating. On at least a part of the melt surface there is performed an electrolysis whereby the melt across a layer of liquid slag-electrolyte is connected as an an...	07/31/1984
4385972	Electrolytic disintegration of sintered metal carbides Tungsten and cobalt metal are recovered from cemented carbides by the electrolytic disintegration of the cemented carbide as the anode in an aqueous electrolyte containing a soluble alkali metal hydroxide. Tungsten carbide is thus converted to carbide par...	05/31/1983
4332653	Method of nitriding by high temperature electrolysis A method of nitriding by high temperature electrolysis in which the works to be nitrided are dipped into a molten cyanide bath which contains low grade oxides of titanium and/or zirconium in a hot dispersed form as catalyst and maintained at a temperature...	06/01/1982
4304593	Embrittling of glass alloys by hydrogen charging Metallic glass powder is prepared by charging a solid metallic glass body with hydrogen to effect embrittlement, followed by comminution of the embrittled metallic glass body....	12/08/1981
4244796	Method of influencing the distribution of different constituents in an electrically conductive liquid A method of influencing the distribution of different constituents in an electrically conductive liquid, especially a molten metal, wherein an electrical current is conducted through the electrically conductive liquid and at the same time there is formed ...	01/13/1981
4162949	Reduction of steel cathode overpotential The hydrogen overpotential of a steel cathode for use in the electrolysis of aqueous alkali metal solutions in diaphragm electrolytic cells is reduced by depolarization in a highly alkaline electrolyte. The reduction results in an appreciable reduction of...	07/31/1979
4071416	Treatment of chromium-containing iron alloys A method of providing a hard film on stainless steel comprising treating the stainless steel in an aqueous solution of chromic and sulfuric acids to provide a film and then treating the metal containing the film in an aqueous solution of a water-soluble s...	01/31/1978
4035202	Annealing treatment for controlling warhead fragmentation size distribution Methods for controlling the sizes and shapes of fragments produced by warhead casings are disclosed....	07/12/1977
3966570	Electrolytic post-treating method of electrolytically chromate treated or metallic chromium plated steel sheet Method of electrolytically post-treating an electrolytically chromate treated or metallic chromium plated steel sheet comprises anodically treating the said electrolytically chromate threated or metallic chromium plated steel sheet in an electrolyte other...	06/29/1976
3944476	Process for desulfurizing molten metals Process for decreasing the sulfur content of liquid metal using high temperature comprising passing a direct current by means of two electrodes through a solid electrolyte constituting a refractory wall of oxide having anionic conductivity through the oxy...	03/16/1976

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Class 205/741 - Containing iron