The principal method by which polymer or plastics material is converted into useful products is by moulding, usually under heat and pressure, in a hollow mould or die. The material takes the shape of the mould, from which it is…
At some point in every design, it is essential for the eye to see and to comprehend the actual size of an object. For example, it is possible to represent, on a 12-in. CRT, the scale representation of a 10…
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…
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…
