Manufacturing the Blow Mold While the hand duplicator or copy milling machine is still the backbone of the mold-making industry because of its ability to cut just about any shape with a high degree of accuracy, it is slow and…
EXTRUSION BLOW MOLD FABRICATION The two most widely used methods of extrusion blow mold constructions are by machining or casting. The choice of method is dependent on factors such as, number of cavities, mold material, intricacy of design and accuracy…
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…
