Improvements bringest to the applicators micro - waves, in particular to the coupling device of the energy on a material absorbing circulating under pressure into a metallic enclosure any

摘要

An applicator of electromagnetic energy for heating non-metallic materials under pressure comprises a line for distributing electromagnetic energy in a waveguide which co-operates with a dielectric cavity by means of coupling slots. A magnetically polarized disk which prevents resonance between two consecutive couplings is arranged between each pair of couplings. This arrangement allows a metallic body to be heated at close range and ensures uniform distribution of energy. The most useful applications include the vulcanization of rubber or plastic profiles and cooking by extrusion in the foodstuffs industry.