On injected parts, the injected mark as picture below easily happened on the gate location with banana gate, especially on textured surfaces. due to resin flows through the gate with high pressure.
How to improve this kind of gate marks on injected parts by adjusting molding parameters?
The most important thing is: find out the switch point on molding machine of resin flows at gate point. Use low injection speed to fill the area of gate location, then can change to high speed after that point to inject other areas. It's vital to get the exact injection switch point.
