Horeki
24th January 2020, 03:20 AM
SOLVED:
I just had to reduce a little of injection speed (210mm to 200mm) and temp on the drooling cavity nozzle.
Hello everyone and thanks in advance!
I have a leaking nozzle in a 2 cavity cup mold, after a few normal shots I’ve noticed that my cushion stars to diminish from 6mm to almost 0 and when this happens the leaking occurs and this causes the part to sticks to the cavity (part sticks with the melted plastic leaking).
Details:
180t machine
2 cavity hot runner mold (3 zones)
Material: Impact Copolymer (Formosa 2550a)
Thermal profile: 250, 240, 230, 217
RPM:150
Back P: 15kg/f
Injection Speed: 210mm
Injection Force: 1650
Hold P: 750
Hot Runners: 250 all 3 zones
I just had to reduce a little of injection speed (210mm to 200mm) and temp on the drooling cavity nozzle.
Hello everyone and thanks in advance!
I have a leaking nozzle in a 2 cavity cup mold, after a few normal shots I’ve noticed that my cushion stars to diminish from 6mm to almost 0 and when this happens the leaking occurs and this causes the part to sticks to the cavity (part sticks with the melted plastic leaking).
Details:
180t machine
2 cavity hot runner mold (3 zones)
Material: Impact Copolymer (Formosa 2550a)
Thermal profile: 250, 240, 230, 217
RPM:150
Back P: 15kg/f
Injection Speed: 210mm
Injection Force: 1650
Hold P: 750
Hot Runners: 250 all 3 zones