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WO/2021/219997A1 |
A wafer holder for holding a semiconductor wafer during electrochemical porosification with an electrolyte comprises a housing for receiving the semiconductor wafer, an aperture in the housing, through which an upper surface of the semic...
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WO/2021/209964A1 |
The present invention is directed to a chromatic effect light reflective unit (1; 1a - 1g). The unit (1; 1a - 1g) comprises a reflective layer (10) having at least one reflective surface (11), and a chromatic diffusion layer (20) having ...
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WO/2021/209864A1 |
Anodizing of a shape memory material product or part includes polishing the shape memory material product or part, thereby producing a polished shape memory material product or part, and then anodizing the polished shape memory material ...
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WO/2021/204702A1 |
The invention relates to a method for surface treatment and/or production of a medical product, the medical product comprising a metal or an alloy or consisting of a metal or an alloy, characterised in that the method comprises the follo...
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WO/2021/204699A1 |
The invention relates to a method for the surface treatment and/or manufacture of a medical product, wherein the medical product comprises a metal or an alloy or consists of a metal or an alloy, and the method comprises the following ste...
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WO/2021/191241A1 |
The present invention concerns a method for surface treatment of a metal substrate, suitable for use as electrode support in electrochemical processes, comprising the following steps: (a) immersion of said metal substrate and of at least...
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WO/2021/184114A1 |
An apparatus and system for in-situ electropolishing and/or for in-situ electroforming a structural or functional reinforcement layer such as a sleeve of a selected metallic material on the internal surfaces of metallic tubular conduits ...
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WO/2021/180480A1 |
The present invention relates to a procedure for finishing stainless steel parts. The finishing process of the invention is particularly useful for stainless steel parts of complex structure such as those produced by additive manufacturi...
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WO/2021/166775A1 |
Provided is a descaling liquid that does not leave hexavalent chromium after carrying out an electrolytic descaling treatment. The descaling liquid is an aqueous solution used for an electrolytic descaling treatment for stainless steel, ...
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WO/2021/160212A1 |
The invention relates to a method for producing a silicon anode for secondary batteries, characterised by the steps of providing a monocrystalline silicon wafer with (100)-oriented flat sides, contacting the rear side of the wafer with a...
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WO/2021/162607A1 |
The invention relates to a method for surface treatment of a steel belt (1). The method comprises the steps of providing (100) the steel belt made of martensitic stainless steel, performing an electrochemical polishing (300) of a surface...
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WO/2021/160337A1 |
The present related to a method for surface smoothening of compounds, in particular of additive manufactured compounds was disclosed, the method comprising the steps of: - providing sputtering equipment with a sputtering vacuum chamber w...
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WO/2021/156531A1 |
A solid electrolyte for the dry electropolishing of metals, comprising at least one type of active ion exchange resin particles charged with an acid solution that generates chemical activity and electrical activity, at least one type of ...
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WO/2021/156600A1 |
An electrolyte solution is provided for an electrochemical machining process. The electrolyte solution includes a substantially water free ionic solvent, an ionisable material in the form of an inorganic salt; and a viscosity modifier. T...
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WO/2021/156530A1 |
A device for the electropolishing of metal surfaces by means of solid electrolytes, comprising: a container (6), an element (1) capable of accommodating at least two metal items; that is, containing the items (2), preventing the egress t...
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WO/2021/148318A1 |
The invention relates to a composition in the form of an electrolyte for dissolving and/or separating metals, metal oxides, and/or metal alloys, comprising: butyltrimethylammonium-bis(trifluormethylsulfon-yl)imid (N1114 BTA), potassium a...
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WO/2021/141718A1 |
Showerheads for semiconductor processing equipment are disclosed that include various features designed to reduce nonuniformity and adjust deposited film profiles.
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WO/2021/125534A1 |
Disclosed in the present specification is stainless steel for a fuel cell separator, having excellent surface electrical conductivity. According to one embodiment of the disclosed stainless steel for a fuel cell separator, having excelle...
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WO/2021/125531A1 |
Disclosed in the present specification is a stainless steel having excellent surface electrical conductivity for a fuel cell separator. According to an embodiment of the disclosed stainless steel having excellent surface electrical condu...
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WO/2021/123312A1 |
This invention relates to a method for manufacturing a laminated tinplate for packaging applications, the laminated tinplate comprising a tinplate sheet and a thermoplastic laminate layer that covers at least one side of the tinplate ste...
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WO/2021/125532A1 |
The present specification discloses stainless steel for a fuel cell separator, the stainless steel having excellent surface electrical conductivity. According to an embodiment of the disclosed stainless steel for a fuel cell separator, t...
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WO/2021/125533A1 |
Disclosed in the specification is a stainless steel having excellent surface electrical conductivity for a fuel cell separator. A stainless steel having excellent surface electrical conductivity for a fuel cell separator disclosed accord...
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WO/2021/115698A1 |
The present invention relates to an electrolyte for electropolishing metal surfaces, in particular workpieces, in particular made of titanium or titanium alloys such as nitinol. The present invention furthermore relates to a method for e...
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WO/2021/117617A1 |
This metal wire is a tungsten wire or a tungsten alloy wire, the quantity of an alkali metal present at the surface of the metal wire being 2.0 µm or less in 1 g of the metal wire.
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WO/2021/105738A1 |
This invention relates a pickling process of a metallic strip comprising the steps oh - passing said metallic strip through at least a pickling bath being at a temperature between 1 and 100°C, - applying an alternating current, having a...
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WO/2021/101076A1 |
The present specification discloses an ionic liquid for pickling stainless steel, which is capable of rapidly removing oxide scale from stainless steel at room temperature without using nitric acid or hydrofluoric acid, and a method for ...
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WO/2021/095997A1 |
The present specification relates to a method for manufacturing stainless steel for a polymer fuel cell separator and, more specifically, discloses a method for manufacturing stainless steel for a polymer fuel cell separator, in which a ...
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WO/2021/090088A1 |
A low-hazardous electropolishing process has been developed to remove oxide layer(s) from the surface of nitinol needles. Low concentrations of citric acid and sulfamic acid are mixed with medium concentrations of sulfuric acid to use as...
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WO/2021/090582A1 |
According to the present invention, a sulfuric acid solution which contains, as an oxidizing agent, a persulfuric acid component such as peroxomonosulfuric acid, a peroxomonosulfuric acid salt, peroxodisulfuric acid or a peroxodisulfuric...
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WO/2021/085846A1 |
The present invention relates an electropolishing apparatus and, more specifically, to an electropolishing apparatus which is used when the inner surface of a stainless tube is subjected to surface treatment, the electropolishing apparat...
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WO/2021/085845A1 |
The present invention relates to a surface treatment metal electrode bar for electropolishing and, in detail, to a non-contact surface treatment metal electrode bar for electropolishing, used for surface treatment of stainless steel tube...
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WO/2021/086455A2 |
A technique of removing material from metal parts referred to as OPECM and a corresponding OPECM processing machine are disclosed. A tool electrode is manufactured for removing material from a target workpiece, and the workpiece and tool...
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WO/2021/074509A1 |
In a method for mass-finishing a part (1), said method comprising placing the part (1) and a composition comprising an electrolyte (5), media (10) and carriers (20) in a tank (2, 2'), the media (10) and the carriers (20) being dispersed ...
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WO/2021/069842A1 |
The present invention relates to a method for manufacturing a part, comprising the steps of chemically etching, in a wet acid medium, at least a portion of a surface of a substrate made of a monocrystalline superalloy, comprising at leas...
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WO/2021/070807A1 |
[Problem] To treat corner portions of an etched metal machined component by a technique other than a polishing technique. [Solution] The following steps are included: a step of forming protecting layers 200 respectively on a front surfac...
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WO/2021/033500A1 |
A wire for electric discharge machining comprises a tungsten wire including cerium oxide in an amount of 0.2-0.4 wt% (inclusive), and the surface roughness Rz of the tungsten wire is 0.6-2.0 μm (inclusive).
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WO/2021/019121A1 |
The invention relates to a method and device for dry treatment of metal surfaces (1) by means of electrically active solid particles (9), which comprises a step of placing the particles (9) in contact with the electrode (3) of an electri...
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WO/2021/021786A1 |
Valuable metals, and especially copper and silver, are recovered from a lead containing electrolyte in a process in which the electrolyte is fed into an electrochemical polishing reactor that has a high-surface area cathode at which the ...
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WO/2021/012597A1 |
A variable-frequency polarization polishing apparatus (A) and method. Said apparatus comprises: a power supply module (1), provided with a power supply connection end (11); an inverter frequency converter (2), outputting an alternating c...
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WO/2021/006099A1 |
Provided is a ferritic stainless steel sheet for current collectors for sulfide-based solid-state batteries, which has excellent sulfidation resistance and adhesiveness. The ferritic stainless steel sheet has a component composition cont...
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WO/2021/005919A1 |
The present invention provides a chromium-containing steel sheet for collectors of nonaqueous electrolyte secondary batteries, said chromium-containing steel sheet exhibiting excellent corrosion resistance in a battery environment and en...
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WO/2020/260888A1 |
A method and apparatus for the electrochemical removal of material from a surface in which two or more fluid jets or flows are arranged to impinge on the surface of the object and an electrical current flows through one fluid flow path, ...
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WO/2020/254306A1 |
The present invention relates to a method for nanostructured materials fabrication combining soft lithographic imprint, aluminum anodization and metal sputtering which permits the preparation of highly ordered nanoporous alumina template...
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WO/2020/248340A1 |
Provided is a preparation method for nanotube arrays on the surface of laser melt molded stainless steel, comprising a stainless steel anodizing treatment step, comprising: in a solution formed with sodium dihydrogen phosphate, perchlori...
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WO/2020/246156A1 |
A gas turbine blade repair method including: a step in which a thermal barrier coating is removed to expose at least part of a base material of a gas turbine blade; a first etching step in which the exposed base material is etched; a fir...
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WO/2020/240188A1 |
An electrochemical machining device is provided for machining a surface of a workpiece. The electrochemical machining device includes a base unit and a portable machining unit. The machining unit includes a housing, a nozzle disposed wit...
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WO/2020/232935A1 |
A high-efficiency cleaning device and method for stainless steel, said device comprising a neutral salt ultrasonic electrolytic tank (1), a strong acid ultrasonic pickling tank (2), an ultrasonic mixed acid pickling tank (3), a spray rin...
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WO/2020/223887A1 |
Disclosed is a super-hydrophobic hemispherical array capable of realizing a droplet pancake bounce function. The super-hydrophobic hemispherical array is of an arc shape with a narrow upper portion and a wide lower portion, wherein an in...
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WO/2020/206492A1 |
A method for electropolishing a manufactured metallic article, the method comprising: contacting the metallic article with an electropolishing electrolyte; and electropolishing the metallic article in the electropolishing electrolyte thr...
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WO/2020/198829A1 |
The present invention relates to the development of a technique for modifying, stabilizing, functionalizing and reusing the surface of screen-printed electrodes by application of Rhodamine 6G as an organic compound which modifies the wor...
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