Aluminum High thermal conductivity, light weight，ductility, and excellent machining characteristics make aluminum an obvious choice for many blow mold applications. While the alloying elements usually are added to enhance its ability to be cast and machined do not seriously impair…
EXTRUSION BLOW MOLD MATERIALS DESIGN AND CONSTRUCTION METHODS The blow mold has undergone many changes in its design evolution, but its basic requirement of good heat-transfer properties and resistance to wear remains of maximum importance. These two factors must be…
Continuous Extrusion Machines. The shuttle and the wheel types of machines have been adapted so that multiple screw-extruders feed into a common extrusion head to continuously form a parison tube having three, five, j seven, or more concentric layers…
The stretch-blow process is used to manufacture plastic containers which generally are lighter in weight and have greater clarity and improved physical Properties，compared to containers manufactured by other blow-molding Processes. In stretch-blow molding, the container material is biaxially ented by…
Injection-Blow Process The injection-blow process combines the function of blowing with the precision of injection molding; it requires a parison-forming mold with integral neck ring, multiple core rods (blow pins) and a blow mold. A core rod is moved into…
