Plastic Injection Moulding Services
Injection moulding, along with extrusion, are the
main processes for producing plastic products. These
are the most popular way to produce any plastic article
due to its fast process and ability to produce large
numbers of identical products for a relatively low cost.
The majority of thermoplastics can be processed through
injection moulding. Plastics are a very unique group
of materials, but they exist in many different physical
forms. They range from very soft and flexible to very
hard and rigid and can be made into pretty much any
colour you would like. All plastics are part of a family
of materials called polymers. This is the chemical term
for a substance which is made up of many many molecules
all strung together to form long thin chains.
At Plastic Supplies Dudley, we use a wide range of
different materials including:
- ABS - Acrylonitrile Butadiene Styrene.
- HDPE - High Density Polyethylene.
- LDPE - Low Density Polyethylene.
- PP - Polypropylene.
- PA - Polyamide (Nylon).
- POM - Polyoxymethylene (Acetal).
- TPE - Thermoplastic Elastomer.
- TPU - Thermoplastic Polyurethane.
There are two main functional components of a injection
moulding machine. These consists of a clamp unit and
an injection unit.
The clamp unit has 4 main roles within the machines.
- Holding the mould halves securely in place and
accurately in alignment.
- Opening and closing the mould quickly but in
a controlled manner.
- Keeping the mould closed while under very high
- Ejecting the component through the use of the
built in mechanism.
The injection unit is the part of the machine where
the material is contained to be moulded. The basic functions
of this unit is to:
- Convey the material
- Heat the material until it is throughly plasticised.
- Pressurise the plasticised material.
- Inject the plasticised material into the mould.
For all your plastic injection moulding requirements