SYSTEM FOR INDUCTION HEATING OF METAL PARTS (Machine-translation by Google Translate, not legally binding)

• Main Authors: HERRERO GARCIA, Raúl, CASES SANCHIS, César Manuel, MAGRANER CACERES, José Miguel, RODRIGUEZ LARA, Juan Carlos, MORATALLA MARTINEZ, Pedro, LOPEZ MARTIN, Fernando, NUNEZ RODENAS, Bernabé
• Format: Patent
• Language: English; Spanish
• Published: 19.04.2021
• Subjects: CHEMISTRY; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

The present invention refers to a bifrequential system for induction heating of metal parts by means of an inductor coil, configured to be traversed by a current resulting from the combination of two currents of different frequencies, comprising: two inverter circuits that generate a signal low-frequency and a high-frequency signal; a current transformer and a capacitor element connected to each of the inverters; where the capacitor element of the high frequency branch is connected at an intermediate point of the inductor coil, which defines a section in the coil that prevents the passage of high frequency currents towards the first inverter circuit and, in turn, is used for heating the part. (Machine-translation by Google Translate, not legally binding) La presente invención se refiere a un sistema bifrecuencial para calentamiento por inducción de piezas metálicas mediante una bobina inductora, configurada para ser atravesada por una corriente que resulta de la combinación de dos corrientes de diferente frecuencia, que comprende: dos circuitos inversores que generan una señal de baja frecuencia y una señal de alta frecuencia; un transformador de corriente y un elemento capacitor conectados a cada uno de los inversores; donde el elemento capacitor de la rama de alta frecuencia está conectado en un punto intermedio de la bobina inductora, lo que define una sección en la bobina que impide el paso de corrientes de alta frecuencia hacia el primer circuito inversor y, a su vez, es utilizado para el calentamiento de la pieza.