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WO/1998/007898A1 |
Described are preferred multilayer, thin-film electrodes (11) that have improved resistance to flaking or cracking under conditions of operation. Also described are electrolytic cells (17) incorporating such electrodes (11), and methods ...
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WO/1998/006884A1 |
The invention relates to a process and a system for electrochemical treatment of long stretched-out items, especially sticks, wherein an item maintained by one end in a clamp (3) is introduced, along an as eccentric an axis as possible, ...
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WO/1997/049843A1 |
The invention discloses a method for the electrolytic coating with a metal layer of the casting surface of a cylinder for the continuous casting of thin metal strips between two cylinders or on a single cylinder. The said casting surface...
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WO/1997/046740A1 |
The holding clamp of the invention has a first elongated arm and a second shorter arm both being electrically conducting and interconnected in parallel spaced-apart fashion by a transverse pivotal bracket intermediate their lengths. The ...
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WO/1997/041279A1 |
A method for coating particulate substrate materials is provided which comprises (a) combining particles and an electrolyte in an imperforate container (20); (b) vibrating the container (20) to generate a fluidized bed of particles (28) ...
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WO/1997/041280A1 |
The use of cathode plates for electrolytic copper deposition, coupled with mouldings fitted for edge protection is well established. These include such things as edge strips, gripping edge protectors and dipping in wax, to prevent build-...
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WO/1997/037062A1 |
The invention relates to a process and a device for the electrochemical treatment with a fluid of mutually electrically insulated electrically conductive regions (2) on items (1). Insulated, e.g. etched, structures on printed circuit boa...
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WO/1997/037061A1 |
The invention concerns a device for galvanically depositing a metal layer on a substrate, the device comprising a container (50) for holding the electrolyte (58), and an anode container (56) which is filled with anode material and has a ...
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WO/1997/035051A1 |
An electrolytic process for simultaneously cleaning and metal-coating the surface of a workpiece of an electrically conducting material, which process comprises: (i) providing an electrolytic cell with a cathode comprising the surface of...
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WO/1997/035052A1 |
An electrolytic process for cleaning the surface of a workpiece of an electrically conducting material, which process comprises: i) providing an electrolytic cell with a cathode comprising the surface of the workpiece and an inert anode;...
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WO/1997/035050A1 |
The proposed method of treating surfaces and a suitable device relate to the metallurgical industry and can be used for removing impurities from and/or applying various coatings, including protective coatings, to metal surfaces. The devi...
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WO/1997/034029A1 |
A compound electrode for electrolysis which is provided with a cathode comprising a rotated drum, and an anode opposed to the cathode across a predetermined space and having an arcuate inner surface, and which is capable of retaining an ...
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WO/1997/022737A1 |
An apparatus for spray electroplating of metal onto a panel surface that moves through a plating chamber (10), the apparatus employing roller brushes (13) which are positioned between electrolyte spray heads (17) and the panel (11). Meta...
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WO/1997/021852A1 |
The invention concerns a method of forming an alloy layer, in particular of bronze, on a workpiece surface, in which the surface to be coated is connected as the cathode and is contacted by an adjacent anode via an electrolyte. The objec...
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WO/1997/020969A1 |
An apparatus and method are provided for coating particles in a rotating container (16). A cathode (12) forms an electrically conductive inner surface of a sidewall of the container (16). An anode is positioned relative to the cathode (1...
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WO/1997/015704A2 |
The invention concerns an electroplating plant comprising an electroplating container and a supply container between which the electrolyte circulates. In the supply container the metal content of the electrolyte is supplemented by a solu...
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WO/1997/015703A2 |
The invention concerns a conveyor device for guiding vertically oriented plate-like objects to their chemical or electrolytic surface-treatment. To this end, the conveyor device comprises clamping parts which are held in tong-like manner...
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WO/1997/012079A1 |
A cathode contact device (20) is provided for providing deposition onto a target surface (18) of a workpiece (16). The workpiece has a first electrically conductive continuous contact (17) surrounding the target surface (18). The cathode...
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WO/1997/012080A1 |
A barrel for chemically treating parts having a panel system for retaining said parts within said barrel (10) while permitting passage of a bath solution into said barrel. The panel system comprises a plurality of side panels (202, 202')...
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WO/1997/008366A1 |
The invention relates to an apparatus for fastening a workpiece to be treated electrolytically, for instance an article to be anodized, in position at least for the duration of the electrolytic treatment. The apparatus comprises members ...
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WO/1997/008365A1 |
A series of resilient dielectric wiper blades (131) are mounted between electrodes (125a, 125b) and a workpiece to wipe bubbles of hydrogen from a cathodic workpiece surface, sever dendritic material, if present, and remove a surface lay...
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WO/1997/006291A1 |
An existing, usually used radial lead anode in an electroplating cell is machined to a specific radius. This provides a curved, machined surface for the lead anode to serve as a support structure. A thin gauge, dimensionally stable sheet...
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WO/1996/037638A1 |
A method and apparatus for microencapsulating or coating powderized material comprising use of a rotary flow-through device (40) to alternately compact and electroplate the powder and reorient it prior to another compaction. The inventio...
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WO/1996/024707A1 |
The invention concerns a method and device for galvanizing plate-shaped products (4), in particular printed boards, in horizontal continuous plants through which the products pass in any order. Circulating contacting means are used to co...
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WO/1996/024708A1 |
An apparatus and method for simultaneously anodizing the heads of several aluminum pistons (12) includes a plating tank (14) having an array of apertures (20) extending through one of its sides walls (22), one aperture for each piston; a...
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WO/1996/017111A1 |
The invention concerns a process for producing a corrosion and wear-resistant oxide layer on the metal surface of a workpiece (1), in particular for the metal surface of a valve mounting. To this end, in the presence of a cathode, the wo...
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WO/1996/015294A1 |
The vertically held plate-like workpieces (W) are transported by contacting and conveyor means on a horizontal transport path through a treatment cell (BZ) that contains a treatment bath and whose front walls are provided with vertical s...
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WO/1995/031590A1 |
The vertical printed circuit boards (LP) are taken on at least side-by-side horizontal paths (TW1 to TW4) through processing baths (BB1 to BB3) arranged in successive and adjacent processing cells (BZ10 to BZ13, BZ20 to BZ23, BZ30 to BZ3...
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WO/1995/031589A1 |
Flat workpieces (W) are conveyed in the vertical position on a horizontal transport path through at least one processing cell (BZ) that contains a processing bath. Vertical slots (S) for the passage of the workpieces (W) are provided in ...
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WO/1995/027093A1 |
A terminal (2) for use in an electroplating apparatus to transmit electric current from a power source to an article to be plated comprising a terminal member (4) of electrical conducting material having two ends; the first end (9) of wh...
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WO/1995/023247A2 |
The invention concerns a method of electrolytically depositing metals from electrolytes containing organic additives designed to give particular physical properties. Such additives are continuously lost during galvanization, resulting in...
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WO/1995/020692A1 |
The current density used in a process for the electrolytic treatment of articles is of crucial importance to the cost effectiveness of that process. Normally, only low or medium current densities are used, since the speed with which spen...
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WO/1995/019458A1 |
An electrochemical deposition device (10) comprises an electrode and a capillary tube (20) or rod (40) for retaining a hanging drop of electrolyte in contact with a region of a substrate surface of the electrode.
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WO/1995/017535A1 |
A method of and apparatus for producing abrasive tips on compressor or turbine rotor blades by electrolytic or electroless deposition in which the blades are mounted in a hollow jig (51) with the tips of the blades extending through seal...
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WO/1995/016059A1 |
An apparatus for immersing works in a liquid treatment tank such as a plating bath. Conventionally, a plating process of works has been carried out in such a manner that they transferred in the air from one tank to another after a given ...
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WO/1995/010644A1 |
Conveyors (17) are provided for tumbling and transferring parts to be subjected to treatments, including electroplating in a series of treatment tanks (10, 11, 12). The conveyors are supported on the treatment tanks for pivotal movement ...
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WO/1995/009939A1 |
The device for the selective treatment of the surface of workpieces by flooding the workpieces with a treatment liquid comprises a bath (1), interchangeable holders (10) in the bath for the workpieces, at least one pipe (15-21) leading i...
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WO/1995/007376A1 |
Disclosed is a device for anodic oxidation of workpieces (7) with a container (3) to hold an aqueous electrolyte (9), with a support (13) having fixtures (14) to carry a number of workpieces (7) and with means for inserting the support (...
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WO/1994/021845A1 |
A device for electrolytic oxidation of silicon wafers comprises a plate-like anode (6) and a plate-like cathode (1) as well as an arrangement for holding a silicon wafer (4) between and spaced from the anode and the cathode. The anode, t...
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WO/1994/004718A1 |
The invention is a method for making a metal-containing article, comprising the steps of: providing a layer of a porous ground in a selected area (1404); exposing selected regions of the layer of porous ground to light, thereby metallizi...
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WO/1994/004722A1 |
The invention concerns an anode for use in electrolytic chrome-plating, in particular using electrolytes containing alkylsulphonic acids, alkyldisulphonic acids, fluorides thereof and/or other salts thereof. The anode consists of sheet m...
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WO/1994/003655A1 |
The invention relates to a process for the electrolytic processing of flat and perforated items, especially in the form of printed circuit boards with drillings, which are taken through a treatment bath or to a processing station by conv...
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WO/1993/017155A1 |
To provide a device for the electrolytic coating of electrically conductive small parts, especially of metal, in which the device comprises a bath of liquid electrically conductive coating agent and the bath is in electrically conductive...
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WO/1993/009259A1 |
The invention concerns a support rod (12) for use in the dip-coating of circuit boards (14). In order to hold the circuit boards on the support rod, the rod is fitted with bar-shaped spring clips (34) which run substantially in the same ...
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WO/1993/008594A1 |
Improved electrolytic deposition of semiconductors is obtained by separating the anode from the cathode by an ion-exchange membrane. The process is useful in the deposition of IIB/VIB semiconductors in the fabrication of photovoltaic cells.
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WO/1993/007310A1 |
A device for electroplating plate-like objects, in particular printed circuit boards, has conveyor and/or contacting (4, 5) means on both sides of the displacement path of the objects (3). At least one of them (5) is adjustable transvers...
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WO/1992/022685A1 |
The plating head comprises a prismatic body (20) containing a series of ducts (30) connected via a supply duct (31) to a source of pressurized electrolyte (51), and a series of ducts (36) connected via a discharge channel (37) to a sucti...
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WO/1992/021794A2 |
The electrode is placed in a housing which defines a chamber (78) and has one wall consisting of a membrane (77) allowing ions to pass therethrough. The housing has an opening (100) for feeding an electrolyte to the chamber and another (...
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WO/1992/018669A1 |
The workpieces to be galvanised are conveyed along a horizontal path through an electrolyte in which there is at least one anode (A1). The cathodic contact for the workpieces conveyed is provided by rotary contact members (K1), e.g. cont...
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WO/1992/010598A1 |
A contamination control apparatus for sealable interconnection with a plating tank (12) of the character used in the electrodeposition of an electrodeposit onto a substrate. The apparatus includes a capture means (16) carried by a hood m...
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