RTP Company provides complete technical support for our specialty compounds, through experienced staff located at each of our worldwide plants. Our technical service personnel can evaluate mold design and setup, optimize processing conditions based on material, assist with handling new materials, and investigate and resolve problems.
Injection molds must be properly designed to ensure quality plastic components. Mold design impacts productivity and profitability of your molding operation. This section offers guidelines for designing an efficient injection mold.
Avoid sudden changes in wall thickness by using transition zones to eliminate stress concentrations and reduce sinks, voids, and warping in the molded part.
The connection point between two molded surfaces.
Two Plate Mold
Three Plate Mold
Insulated Runner Mold
Living Hinge Design
This design is simply a modification of a flash gate into a cavity. The web will neck down the first time it is flexed. To ensure a good flex life, the hinge should be flexed several times immediately after being molded, since orientations of the web is what gives it strength.
For use with polypropylene and polyethylene resins only.
For more information, view our Part Design Guidelines for Injection Molded Thermoplastics Brochure…