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The
structures and tolerances of insert molds from Aline Components,
Inc. rival machined parts and demonstrate excellent dimensional
stability without the need for additional fasteners, adhesives,
or other assembly methods. As a preferred thermoplastic
injection molding and manufacturing company, Aline Components
employs state-of-the-art injection molding equipment for
dependable custom plastic part or component solutions.
Insert molding, also referred to as over-molding,
is a thermoplastic injection molding process in which thermoplastic
materials are injected around another core material.
The core material can be another polymer, a ceramic preform,
or a metal component. The insert molding process allows
multiple components to be placed within a cavity or part
in a single thermoplastic injection molding operation.
Advantages of Aline’s
Insert Molds
- Reduced part assembly costs
- Improved quality and consistency
- Strengthened mechanical bond between mating
components
- Shortened cycle time
- Lowered procurement costs
In insert molding it is critical that the
insert and the thermoplastic material be compatible for
the melt bond to occur at the interface between the two
materials. Several factors, including interface temperature,
cleanliness of the insert, and melt temperature, can affect
the strength of the bond. At Aline, we have established
many techniques to create reliable, long-lasting bonds.
We are able to improve bond strength by preheating the insert
and ensuring that the surface of the insert is free from
dirt, grease, or oil. For non-compatible materials, we can
apply an adhesive to the insert. Another way we combine
incompatible materials is by designing parts with mechanical
locks so the molten thermoplastic material flow into the
locking area to create a secure bond.
Applications of Aline’s
Insert Molds
Generally, insert molding is designed for complex parts
that cannot be produced via other thermoplastic injection
molding processes. Inserts are used extensively in a variety
of custom plastic parts or components to provide support
for bearings and shafts, internal and external threaded
sections, thermal or electrical conductivity, anchorage,
positioning studs, reinforcement, hinging, terminals,
nameplates, magnetic laminations, and other functional
or decorative needs. Click here for more information on
types of inserts and other insert molding applications.
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