Patent ID: 8235697
Filing Date: 2012-08-07
Classification: B29C,Y10T

Abstract:
1. An injection-molding device, comprising: a tool for forming a surface, the tool comprising a heating device, for heating the tool in the vicinity of a tool surface, said heating device comprising an inductive coil having a plurality of windings and being powered by an oscillator; a top member, at the tool surface, a carrier member, placed behind the top member as seen from the surface to be formed and comprising grooves for accommodating said coil windings, and an intermediate member placed between the top member and the carrier member, wherein the top member has a resistivity lower than 1.5*10 the carrier member has a relative magnetic permeability higher than 50, and a resistivity higher than 20*10 the intermediate member has a resistivity higher than 20*10