How to solve the problem of weld line of conductive PC injection parts?

Conductive PC plastic particles used in injection molding process products include: electronic turnaround box, electronic pallet, safety helmet, etc. There may be weld marks in the process of injection moulding of conductive PC plastic particles. The weld mark is a linear mark produced by the high temperature melting plastic when it meets the area of hole, discontinuous flow rate and interruption of filling material flow in the mould cavity. The weld mark will affect the mechanical strength of the injection parts, and the most fundamental problem of the weld mark is the mould. Then we can use the following methods: Four points below to avoid weld lines.