What is the specific production process of blow molded plastic products in Suzhou

The blow molding process in Suzhou includes three basic steps: preform forming, blow molding, and product cooling. First, the plastic is processed into a molded preform (injection molding or extrusion), and then the high-temperature preform is placed in a blow molding mold. Compressed air is injected into the preform to blow it tightly against the cavity wall, and the inflation pressure is maintained until the plastic part cools and sets. The process of opening the mold to obtain a hollow plastic part.

What is the specific production process of blow molded plastic products in Suzhou

Classification and characteristics of Suzhou blow molding processing technology:

According to different methods of preform preparation and blowing, there are various blow molding processes including extrusion blowing, injection blowing, extrusion pulling blowing, injection pulling blowing, etc.

1. Extrusion blow molding process - extrusion blowing

2. Extrusion stretch blow molding process - extrusion stretch blow molding

The plastic is extruded into a tubular billet through an extruder and a billet head, and the heat pipe billet is cut by a pre blown mold

And pre inflated, the pre inflated high-temperature billet is moved to the blow molding mold for stretching and inflation molding