Injection molding discoloration for white ABS products, how to deal with hot runners
Injection molding discoloration for white ABS products, how to deal with hot runners
First, make sure that the color change is what color, whether it
is yellowing caused by high temperature, or blackening or other
1.
Check if the plastic has impurities and if it is dry; you can see it at the
resin outlet of the barrel.
2.
Whether there is a dead angle in the hot runner design, or the local heating is
too high, resulting in yellowing and blackening.
3.
The manifold, the hot nozzle has tested the temperature difference
4.
Is the ratio of hot runner resin to product reasonable, and whether the plastic
stays
in
the hot runner system for too long?
5.
Is the cut too large?
More
detailed information ,welcome contact us anytime! sales@well-made.net
