Dear Jun,
Good morning ! I’m find and you ?
You can solve this problems as
When sprayer releases white smoke(so much white dust) pls. do following
1. First of all, check temperature every zone that actual values are matching with setting values or not
2. Check the temperature of Zone 3 and Zone 4, they should not be the over heat
3. Down temperature Zone 3 and Zone 4 about 3-5 degree celsius ( zone1,2 and 5 are fixed temperature)
When sprayer release some big melt particle, pls. solve as
1. Up temperature Zone 3 and Zone 4 about 3-5 degree celsius
2. Redo item1 until it becomes to normal condition
Finally if it is not able to solve pls. take off the screw extruder for being clean.
Any support, please let me know,