Patents for C25F 3 - Electrolytic etching or polishing (4,256)
11/1984
11/06/1984US4481090 Decontaminating metal surfaces
11/06/1984US4481089 Alternating electrolysis in neutral salt solution
11/06/1984CA1177440A1 Method of etching aluminum
10/1984
10/16/1984US4477324 Making metal eutectic fine wire arrays
10/16/1984US4477317 Aluminum substrates useful for lithographic printing plates
10/09/1984US4475995 Method for electrochemical removal of metallic work material
10/09/1984US4475983 Base metal composite electrical contact material
10/02/1984US4474657 Single step electro chemical etch process for high volt aluminum anode foil
09/1984
09/19/1984EP0118740A2 Plate, foil or web-like materials made of mechanically and electrochemically grained aluminium, process for their manufacture and their use as supports for lithographic printing plates
09/04/1984US4469572 Method of continuously processing a band-shape material
08/1984
08/28/1984US4468295 Process for electrochemically roughening aluminum for printing plate supports
08/15/1984EP0115793A1 Process and device for treating sodium-nitrate containing electrolytes during electrochemical removal
08/07/1984US4464441 Semiconductor disks
07/1984
07/24/1984US4461685 Method for producing acicular iron or iron alloy particles
07/24/1984CA1171381A1 Method for maskless chemical and electrochemical machining
07/10/1984CA1170617A1 Ac etching of aluminum capacitor foil
06/1984
06/26/1984CA1169810A2 Filament, and electrolytic tapering off said filament, and related process
06/19/1984USRE31605 Method and apparatus for electrochemically finishing airfoil edges
06/19/1984US4455200 High frequency alternating current
06/12/1984CA1169021A1 Ac etching of aluminum capacitor foil
06/05/1984US4452677 Electrochemical etching to reduce cracking
06/05/1984CA1168619A1 Ac etching of aluminum capacitor foil
05/1984
05/02/1984EP0106977A2 Method and apparatus for electrochemically treating a substrate
05/01/1984US4445988 Micrographic detection of plastic deformation in nickel base alloys
04/1984
04/25/1984EP0106477A2 Process for manufacturing semiconductor devices comprising an electrochemical-etching step
04/04/1984EP0104261A1 Machining solution for electric discharge machining
03/1984
03/27/1984CA1164404A1 Galvanic post-treatment of etched aluminum capacitor foil
03/21/1984EP0103443A2 Process for fabricating an optical device
03/20/1984US4437955 Pretreatment with hydrochloric acid bath, then a sodium chloride bath
02/1984
02/28/1984US4434022 Process for manufacturing copper-clad laminate
02/21/1984US4432855 Automated system for laser mask definition for laser enhanced and conventional plating and etching
02/21/1984US4432846 Cleaning and treatment of etched cathode aluminum capacitor foil
01/1984
01/25/1984EP0099086A2 Process for manufacturing copper-clad laminate and copper-clad laminate
01/24/1984US4427506 AC Etching of aluminum capacitor foil
01/17/1984US4426260 Etching, nitric acid, electroforming
01/10/1984US4425204 Rapid method for the etching and cleaning of dental casting metals
01/04/1984EP0097301A1 Process for the removing modification of electrochemical roughened aluminium carrier materials, and their use in the production of offset printing plates
01/03/1984US4424433 Method and apparatus for electrically machining a conductive workpiece with isotropic ultrasonic-waves radiation
12/1983
12/27/1983CA1159390A1 Electrolysis of solutions containing dispersed bubbles
12/13/1983US4420367 Multistage, nonelectrolytic
12/06/1983CA1158197A1 Method and apparatus for electrochemically finishing airfoil edges
11/1983
11/22/1983US4416972 For lithographic printing plates
11/16/1983EP0093961A1 Process for the electrochemical graining of aluminium for printing plate supports
11/16/1983EP0093960A1 Process for the electrochemical graining of aluminium for supports for printing plates
11/16/1983EP0093941A1 Method of making surfaces with accurate dimensions and frictional behaviour from cast iron containing carbon
11/15/1983US4415414 N-type semiconductors; electrolysis using a hydrogen fluoride electrolyte; ligh radiation
11/08/1983US4414066 Electrochemical photoetching of compound semiconductors
11/08/1983CA1156601A1 Electrolyte for electrochemical polishing of articles made of titanium and titanium alloys
11/01/1983US4412892 Pretreatment of superalloys and stainless steels for electroplating
10/1983
10/25/1983US4411751 Acid bath
10/25/1983CA1155708A1 Process for preparing lithographic printing plate bases
10/13/1983WO1983003377A1 Machining solution for electric discharge machining
09/1983
09/28/1983EP0089514A1 Method and apparatus for electropolishing alloys
09/28/1983EP0089508A1 Process for the electrolytic roughening of aluminium and its application as a support for offset printing plates
09/27/1983US4406759 Protective coatings
09/20/1983US4405422 In acidic bath containing an alcohol, ammonium sulfamate and nitrate
09/13/1983US4404072 Photoelectrochemical processing of III-V semiconductors
08/1983
08/30/1983US4401532 Radioactive decontamination apparatus and process
08/02/1983US4396468 Lithography; printing plates; uniform etching
07/1983
07/19/1983CA1150187A1 Processing workpieces electrochemically using carbon particles and vanadium compound
07/05/1983US4391683 Mask structures for photoetching procedures
06/1983
06/29/1983EP0082452A1 Process for the electrochemical graining of aluminium with three-phase alternating current and its use in the manufacture of printing platens
06/28/1983CA1148894A1 Selectively treating an article
06/21/1983US4389291 Photoelectrochemical processing of InP-type devices
06/14/1983CA1148111A1 Arrangement and method for selective electrochemical etching
05/1983
05/31/1983US4386142 Surface treatment of semiconductor materials
05/31/1983US4385972 Electrolytic disintegration of sintered metal carbides
05/25/1983EP0079754A2 Masking agent for electrolytic machining
05/24/1983CA1146845A1 Method for controlling etching of electrolytic capacitor foil
04/1983
04/26/1983US4381231 DC Etching of aluminum electrolytic capacitor foil
04/12/1983CA1144517A1 High capacity etching apparatus
04/05/1983US4379022 Method for maskless chemical machining
03/1983
03/23/1983EP0074464A1 Apparatus for cleaning the inner walls of metallic tubular systems by electropolishing by means of moving electrodes
03/23/1983EP0074463A1 Method and apparatus for cleaning the inner walls of metallic tubular systems by electropolishing by means of moving electrodes
03/22/1983US4377447 Method for graining metal lithographic plate
03/15/1983US4376686 AC Etching of aluminum capacitor foil
03/01/1983US4375396 Thin wire pointing method
02/1983
02/22/1983US4374710 Electrolytic graining of aluminum with nitric and oxalic acids
02/08/1983US4372831 Concentrated mineral acid, polyphosphate, minimal amount of water
01/1983
01/18/1983US4369099 Photoelectrochemical etching of semiconductors
01/04/1983US4367129 Wire-electroerosion method and apparatus for forming a tapered contour in a workpiece
01/04/1983US4367124 Process for preparing lithographic printing plate bases
12/1982
12/28/1982CA1138373A1 Electrolytically tin-plating steel, remelting and alkaline cathodic treating
12/14/1982US4363708 Process for exposing silicon crystals on the surface of a component of an aluminum alloy of high silicon content
12/01/1982EP0065645A2 Process for treating surfaces of cast iron that contains carbon, as well as apparatus for carrying out the process and cylinder consisting of a grey cast iron casting
11/1982
11/17/1982EP0064607A1 Method of etching a recrystallized aluminium foil for electrolytic capacitors
10/1982
10/19/1982US4354914 Marking head for electrochemical process
09/1982
09/28/1982US4351706 Electrochemically eroding semiconductor device
09/14/1982US4349423 Process for decomposing hard metal scrap
08/1982
08/24/1982CA1130236A1 Process for electrolytically forming glossy film on articles of aluminum or alloy thereof
08/10/1982US4343686 Method for controlling etching of electrolytic capacitor foil
08/05/1982WO1982002620A1 Method of etching alminium foil for an elctrolytic capacitor
07/1982
07/22/1982WO1982002408A1 A method of anodically deburring articles of copper or copper alloy
07/22/1982WO1982002407A1 A method of anodically deburring articles of steel or aluminium alloys in an electrolytic bath,and a bath for carrying out the method
07/20/1982CA1127998A1 Apparatus and method of electro-processing large vessels
07/20/1982CA1127997A1 Method and apparatus for incremental electro-polishing
07/20/1982CA1127996A1 Electrochemically treating electrical steel with insulative coating with electrolyte producing metal hydroxide
07/13/1982US4339315 Electrolytically etching an aluminum sheet with citric or malic and hydrochloric acids
06/1982
06/30/1982EP0054990A1 Aluminium foil for electrolytic capacitors
06/22/1982US4336113 Lithographic printing plates
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