Blow molding process control points Blown film process is as follows:
Hopper of a plastics extrusion materials traction Inflation Wind Central cooling roller traction herringbone traction splint film winding corona treatment
However, it is noted that the performance with the production of blown film process parameters have a great relationship, therefore, in the blown film process, the need to strengthen the control of process parameters, standardized production procedures, to ensure the smooth production for, and obtain high-quality film products. In polyethylene blown film production process, mainly to do the following control parameters:
1. Extruder Temperature Blowing low density polyethylene (LDPE) film, the extrusion temperature is controlled between 160 ~ 170 , and must ensure that the nose temperature uniformity, extrusion temperature is