Heating the platens on horizontal injection molding machines
Has anyone ever heard of heating the platens on horizontal injection molding machines? How do you do it, and what is it supposed to help with?
I have used drilled holes in the platten with a standard oilheater. This was supplied by the machine supplier. Als we have used seperate platen with induction coils build in it. That was the best solution. Als clean and very strong. And efficién.
We are Thermoset Composite molders and platens are sometimes heated to help heat soak the molds. However, this can cause problems with the molding machine as the platen bearings expand. Normally we insulate our molds to minimize heat transfer into the molding machine platens. Most thermoset molds are heated to between 310 and 375 F