Abstract:
Vergussmasse, enthaltend ein an sich bekanntes duroplastisch härtbares Epoxidharz oder ein Gemisch solcher Harze, einen an sich bekannten Härter oder ein Gemisch solcher Härter, und gegebenenfalls Additive, wobei diese Vergussmasse in gleichmässiger Verteilung (a) mindestens eine Siloxanverbindung mit einer Viskosität im Bereich von etwa 0.25 cSt bis etwa 20'000 cSt (gemessen gemäss DIN 53 019 bei 25°C), sowie (b) mindestens ein Fluorotensid, enthält; Verwendung dieser Vergussmasse zur Herstellung von elektrischen Isolierungen und Bauteilen sowie die derart hergestellten elektrischen Isolierungen und Bauteile.
Abstract:
Füllstoff, welcher für die Verwendung in elektrischen Formteilen und elektrischen Beschichtungen auf Basis einer Duroplastmatrix oder einer thermoplastischen Vergussmasse geeignet ist, wobei der Füllstoff aus porösen anorganischen Pulverteilchen besteht, deren Porenoberfläche mit einem linearen, zweidimensionalen, dreidimensionalen und/oder cyclischen Organopolysiloxan oder einem Gemisch solcher Organopolysiloxane beschichtet ist; Verwendung des Füllstoffs in duroplastisch härtbaren Vergussmassen oder thermoplastischen Vergussmassen sowie die daraus hergestellten Bauteile.
Abstract:
The present invention relates to an epoxy resin composition for use as insulator, comprising an epoxy compound and at least one breakdown inhibiting agent, and to a method for producing the same. Moreover, the present invention is also directed to the use of at least one breakdown inhibiting agent for increasing the breakdown strength of an insulator comprising an epoxy resin composition and to the use of the epoxy resin composition for impregnating electrical coils and in the production of electrical components, preferably transformers, bushings, insulators, switches, sensors, converters and cable end seals. Further, the present invention refers to an insulation material for electrical articles and to an electrical article comprising the epoxy resin composition.
Abstract:
The present invention is concerned with the curing of electrical insulators, and particular with improving the curing of electrical insulators. A method (100) of manufacturing an electrical insulator for high voltage or high current applications utilizing UV-curing is provided comprising the steps of providing fibres (202), impregnating the fibres (202) with an UV-curable matrix (203) by an impregnation device (201, 101), forming a tubular electrical insulator by using the fibres (202, 102), and curing the UV-curable matrix (203) by exposing the impregnated fibres (202) to UV-radiation (206) emitted from an UV-light source (205, 103).
Abstract:
The present invention refers to a mold for molding a UV cured article in an inner volume thereof, the mold comprising a mold wall surrounding the inner volume, the mold comprising a UV-transparent polymer and UV radiation deflecting particles immersed in or adhered to a surface of the mold wall. Moreover, the present invention is concerned with an apparatus comprising this mold and a process for molding a UV cured article.
Abstract:
The present invention is concerned with the curing of coils of a transformer, and particular with improving the curing of coils of a transformer. A method (100) of manufacturing a coil body of a transformer utilizing UV-curing is provided comprising the steps of providing fibres (202), impregnating the fibres (202) with an UV-curable matrix (203) by an impregnation device (201, 101), forming a tubular coil body of a transformer by using the fibres (202, 102), and curing the UV-curable matrix (203) by exposing the impregnated fibres (202) to UV-radiation (206) emitted from an UV-light source (205, 103).
Abstract:
Curable epoxy resin composition, which comprises: (i) at least one diglycidyl ether of bisphenol A (DGEBA) and at least one diglycidyl ethers of bisphenol F (DGEBF) as epoxy resins, wherein the weight ratio of DGEBA : DGEBF is within the range of about 15:85 to 45:55; (ii) an anhydride hardener; (iii) at least one plasticizer; (iv) optionally a catalyst, at least one filler material and/or further additives; and wherein Lhe dynamic complex viscosity value (η * ) of said composition is within the range of 0.1 to 20 Pa.s; a process for making said composition and electrical articles containing an electrical insulation system made from said composition.