Injection Molding


Thermoplastic Injection Molding Process

A principal process for manufacturing custom plastic parts or components, thermoplastic injection molding involves taking thermoplastic material in the form of pellets or grannuals and heating the material until a melt is obtained. The melt is then forced into a split-die chamber/mold where it cools to form the desired shape. The mold is opened, the part is ejected, and the cycle is repeated.
Three keys to Aline's Plastic Injection Molding Process:
High Quality Thermoplastic Materials

As a plastic injection molding manufacturer, Aline Components, Inc. offers one-of-a-kind thermoplastic injection molding services. With a broad range of services, we can form just about any thermoplastic material to your exact requirements. Thermoplastics are materials that, once formed, can be continually heated and reformed. Learn more about thermoplastic materials available at Aline Components, Inc.

Thermoplastic Injection Molding Process

Custom Manufactured Molds

Our molds are made from high quality metal, either steel or aluminum, and precision-machined to form the features and characteristics of the specified plastic part or component. Aline provides some of the finest standard and custom molds available today with fewer moving parts that results in reduced maintenance and repair costs. Click here to find out more about Aline's molds and maintenance.

Advanced Injection Molding Machines

Aline Components houses a complete line of automated equipment in which the entire thermoplastic injection molding process takes place. Our machines are comprised of two basic units: the injection unit melts the plastic then injects or moves it into the mold and the clamping unit holds the mold shut during filling. The two units work together as follows:

First, the thermoplastic material is put into a hopper where a reciprocating screw pushes the plastic through a long heating chamber to reduce pelletized resins and coloring agents into a hot liquid. At the end of this chamber there is a nozzle which is positioned firmly against the opening of the closed mold. Under tremendous pressure the slurry or melt is forced through this nozzle into a cooled mold. A system of clamps hold the mold halves shut. Once the material solidifies, the mold is unclamped and a finished part is ejected.

Mold Options