Some plastic parts after demoulding, have swelling or bubbling on the back of metal insert or in the extra thick parts. This is due to the expansion of the released gas under the action of internal pressure on the plastic which has not been completely cooled and hardened. JasonMould works with you for details.
Effective cooling. Reduce mold temperature, prolong tooling time, reduce drying and processing temperature.
Reduce the filling speed, reduce the forming cycle and reduce the flow resistance.
Increase the […]