Re: High Hot runner temps.
Hi,
exchange the hot runners for hydraulic or air operated walve gate!!!
Any kind of torpedos or free flow tips (or blocks inside of this tips) at the end of hot runner is not definitelly recomended for PA with GF!
IŽm afraid its bad design and without change youŽll not do anything reasonable.
J
Re: High Hot runner temps.
With that much glass filler a standard hot runner will wear out very quickly due to abrasiveness of the fibers. I’d make sure the screw reaches shot size and then stops decompression about 2-3 seconds before mold opens. If the mold stands still with fast recovery time, the open drops tend to drool while the mold is open. I’m also thinking that air or hydraulic valve gates would make this a better running tool!
Rick.