Need help to address flow line on Injected Speaker
Hi All..I am having a great nightmare in solving flow lines on this product.It is a 4 cavity mold, 4 speakers. I always get the flow line ( Seems to be a cold flow line when cooling) on the cavities of the right side of the mold.
Ant help…You love and appreciate.
If using a profile on injection than figure out where those changes are in finished part, you may be surprised.
In many of these cases I have found where the parts are acutally windowing, thus creating a gas trap and weld line.
You can try to put thin stick paper (0.08mm thick or so)on the likely airtrip area, just to know if the venting can help ,if ok, adjust the injection parameter also. It depends on sevral:gate postion, venting, part design, mold temperature,etc..