Generators of electricity; welding machines and apparatus. Induction heating equipment; apparatus for lighting,
heating, steam generating, cooking, refrigerating, drying,
ventilating and water distribution; sanitary installations. Advertising; commercial business management; commercial
administration; office functions; wholesale and retail
services in stores and sales services via global computer
networks for generators, inductors, heating systems as well
as parts and components thereof; services involving issuing
franchises concerning assistance with the operation and/or
management of a commercial company.
Generators of electricity; welding machines and apparatus. Induction heating equipment; apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating and water distribution; sanitary installations.
The present invention relates to a dual frequency system for induction heating metal pieces using an induction coil designed for the passage therethrough of a current resulting from the combination of two currents of different frequencies. The system comprises: two inverter circuits that generate a low-frequency signal and a high-frequency signal; and a current transformer and a capacitor element that are connected to each of the inverters, wherein the capacitor element of the high-frequency branch is connected at an intermediate point of the induction coil, defining a section in the coil that prevents the passage of high-frequency current to the first inverter circuit and, in turn, is used to heat the piece.
A method for power synchronisation and control for resonant power inverters (3), based on the use of a PLL-type algorithm (10), capable of estimating the phase of an alternating signal from the oscillator (4) selected as a synchronisation signal and consisting of the use of said phase as a basis for the construction of advanced or delayed carrier signals that enable the generation of the trigger pulses of the inverter bridge (3) transistors.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
C21D 1/10 - Durcissement de surface par application directe d'énergie électrique ou ondulatoireDurcissement de surface par radiation particulaire par induction électrique
H05B 6/40 - Établissement d'une distribution désirée de la chaleur, p. ex. pour chauffer des parties déterminées des pièces à travailler
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Generators. Inductors [electricity]; Photographic apparatus and instruments; Cinematographic machines and apparatus; Optical apparatus and instruments; Weighing apparatus and instruments; Nautical apparatus and instruments; Surveying apparatus and instruments; Measuring apparatus and instruments; Checking (supervision) apparatus and instruments; Signalling apparatus and instruments; Life-saving apparatus and instruments; Scientific apparatus and instruments; Teaching apparatus and instruments; Apparatus and instruments for controlling electricity; Apparatus and instruments for accumulating electricity; Apparatus and instruments for switching electricity; Apparatus and instruments for transforming electricity; Apparatus and instruments for regulating electricity; Apparatus and instruments for conducting electricity; Sound transmitting apparatus; Apparatus for the transmission of images; Apparatus for the reproduction of images; Sound reproduction apparatus; Apparatus for recording images; Sound recording apparatus; Magnetic data carriers, recording discs; DVDs; Compact discs; Digital recording media; Coin-operated mechanisms; Cash registers; Calculators; Computers; Data processing equipment; Software; Fire extinguishers. Heat generating apparatus.
A magnetic inductor for heating parts by means of induction having a geometry with a density greater than or equal to 99.9% (absence of pores), produced by a plurality of welded layers formed by metal dust particles of a conductive, non-magnetic material (such as, inter alia, copper, tin, aluminum, gold, or silver), preferably copper or a copper-based alloy, having a spherical shape and a grain size between 40 and 100 μm, and in a single-piece part including electrical and mechanical connections. Also, a method for producing the magnetic inductor with EBM technology (electron beam melting/production technology based on electron beam fusion), using a system comprising an electron gun, a vacuum chamber, a working chamber and a manipulation system.
B22F 5/10 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser d'articles avec des cavités ou des trous, non prévue dans les sous-groupes précédents
H01F 41/00 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques
H01F 1/00 - Aimants ou corps magnétiques, caractérisés par les matériaux magnétiques appropriésEmploi de matériaux spécifiés pour leurs propriétés magnétiques
H01J 37/317 - Tubes à faisceau électronique ou ionique destinés aux traitements localisés d'objets pour modifier les propriétés des objets ou pour leur appliquer des revêtements en couche mince, p. ex. implantation d'ions
8.
SYSTEM AND METHOD FOR HARDENING METAL RINGS BY INDUCTION
The invention relates to a system and a method for hardening metal rings by induction, comprising: two heads, each head being connected to an inductive medium, a system for vertically advancing the two inductive media towards the metal ring, a system for horizontally advancing the two inductive media towards walls of an inner surface of the metal ring and an oscillating circuit, where the system is designed such that: the vertical advancing system simultaneously moves the two inductive media in the vertical direction until they are inserted in the metal ring; the horizontal advancing system separates the two inductive media in the horizontal direction in order to advance each inductive medium towards the walls of the inner surface of the metal ring so as to heat it for a pre-established period of time, and in order to vertically move the two inductive media simultaneously until they are in a shower position so as to obtain the hardening of the metal ring.
H05B 6/40 - Établissement d'une distribution désirée de la chaleur, p. ex. pour chauffer des parties déterminées des pièces à travailler
C21D 1/10 - Durcissement de surface par application directe d'énergie électrique ou ondulatoireDurcissement de surface par radiation particulaire par induction électrique
9.
SYSTEM AND METHOD FOR INDUCTION TEMPERING OF METAL PARTS
The invention relates to a system (1) and a method developed for induction tempering of metal parts (4) which are closed over the entire cross-section thereof, preferably large ball bearings. The diameter of said ball bearings is between 1.5 and 10 metres approximately. The system (1) is designed to inject current through a primary coil (3) generating a magnetic flux in a transformer nucleus (3) which induces a current that heats a metal part (4) acting as a secondary coil. The method using the system comprises opening the transformer nucleus (2), placing the part (4) inside and closing the nucleus, injecting current through the primary coil (3) and inducing a current into the metal part (4) in order to heat same, activating a PID controller in order to obtain a homogeneous temperature throughout the entire metal part (4), opening the transformer nucleus (2) in order to demagnetise same, removing the metal part (4) and subsequently cooling the metal part (4).
Electric generators; Welding machines and apparatus. Induction heating equipment; Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating and water supply purposes; Sanitary installations. Advertising; Business management; Business administration; Office functions; Wholesaling and retailing in shops and sale via global computer networks of generators, inductors, heating systems and parts and components therefor; Franchise-issuing in relation to business management assistance.
The invention relates to a magnetic inductor for heating parts by means of induction, having a geometry with a density greater than or equal to 99.9% (absence of pores), produced by a plurality of welded layers formed by metal dust particles of a conductive, non-magnetic material (such as, inter alia, copper, tin, aluminium, gold, or silver), preferably copper or a copper-based alloy, having a spherical shape and a grain size between 40 and 100 µm, and in a single-piece part including electrical and mechanical connection means. The invention also relates to a method for producing the magnetic inductor with EBM technology (electron beam melting/production technology based on electron beam fusion), using a system comprising an electron gun, a vacuum chamber, a working chamber and a manipulation system.
The invention consists in the development of tempering systems which have a cylindrical symmetry without the part to be tempered having to perform any movement. The system is capable of performing a rotational movement of the assembly formed by the secondary winding of the output transformer (5) and the inductor (3) about its longitudinal axis of symmetry and a displacement along the same axis. This movement is performed while the energy necessary for tempering a part by means of induction is being transferred. Energy transfer is performed without the presence of mechanical contacts by means of a magnetic field, i.e. is performed by means of physical separation between the primary winding (4) and the secondary winding of the output transformer (5) with a rotating movement.
The method consists in the implementation of given steps for producing an inductor for induction heating. Firstly the planes of the inductor are generated in two dimensions and then planes are generated in three dimensions, these being suitable for use with a wax deposition system. This is followed by the creation, by means of wax deposition, of a model of the inductor in two stages which will form the inside and the body of the inductor, respectively. A mould with the external form of the inductor and with dimensions larger than the inductor is formed. The inductor model is introduced into the mould. The mould is filled with a high-conductivity alloy and introduced into a microfusion oven. Once dried in the oven, mould extraction is performed by means of physical mechanisms and chemical pickling agents, thereby obtaining the inductor.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Scientific, nautical, surveying, electric, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, sound recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus. Induction heating equipment; inductors; electronic power supplies.
