公开(公告)号：EP2938473A4

公开(公告)日：2016-08-03

申请号：EP13869839

申请日：2013-12-18

申请人： TCTECH SWEDEN AB

发明人： JÄDERBERG JAN ,  JÄDERBERG LARS

IPC分类号： B29C33/02 ,  B29C35/02 ,  B29C43/52 ,  B29C45/73 ,  B29C51/42 ,  B29C59/00 ,  B30B15/34 ,  H05B6/40

CPC分类号： B29C35/0805 ,  B29C33/06 ,  B29C33/3828 ,  B29C35/02 ,  B29C43/52 ,  B29C45/73 ,  B29C59/02 ,  B29C2033/023 ,  B29C2035/0811 ,  B29C2035/0816 ,  B29K2879/08 ,  B29K2905/12 ,  B29K2995/0005 ,  B29K2995/0015

摘要： The present disclosure relates to a tool such as an injection molding tool or an embossing tool. A heating device including a stack of layers is provided for heating a tool surface. The stack may include a coil carrier layer with a number of wound coils for generating a magnetic field, and a conductive top layer, being adjacent to the tool surface currents are induced in the top layer to heat the surface. Efficient heating may be provided by solutions involving low resistivity layers that lead currents to the top layer without themselves developing heat to any greater extent. A conduction frame device can be provided beneath the top layer and around the perimeter thereof to provide reliable contact with a backing layer. A thermal resistance layer may placed between the intermediate layer and the top layer, and may comprise a heat resistive plastic material such as a polyimide.