The use of induction heating to allow for longer flow lengths (>50mm)/thinner wall sections (<0.25mm) in injection mold cavities

摘要

This present invention covers the use of induction heating to allow for longer flow lengths (>50mm) /thinner wall sections (0.25mm) in injection mold cavities that were not previously possible. Induction heating makes the mold cavity an extension of the melt barrel during the injection/pack phase of the molding cycle. Induction heating only heats the cavity surface and not the mold body. The heating effects can be directional. This will allow a shorter cool down of the mold.