How to make a good Blow molding of PET Bottle Mould? The blow-molding process produces the ubiquitous designer water bottle and similar consumer products. Extrusion blow molding is shown below, and similar processes includes injection below molding and stretch below molding. The extruder first extrudes a heated dangling hollow tube, called a parison, into the open mold. The reader might glance at any plastic drinking bottle and see the rough nipple that gets created. In some designs a crease may be used. Either way, a new problem is created for the part designer. The rough projection on the bottom will make the bottle unstable as it sits on a user’s desk. Another glance at the bottom of any bottle will thus show a carefully designed convex hull or some feet like projections around the bottle’s perimeter. After the mold closes, the parison is inflated and blown out to adopt the shape of the mold. Note that the extruded parison is alr…
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