plastic injection moulding
DESCRIPTION
Dual Metallising specialise in metalising, metalizing, vacuum metalizing, vacuum metalising, plastic injection moulding, plastic moulding, reflectors and spray paintingTRANSCRIPT
What Is Plastic Injection Moulding
Injection moulding is often ranked as the one of the commonly used processes in the production of plastic items. The popularity of plastic injection moulding is often due to the fact that it is a fast
process which can be used to produce vast quantities of identical plastic items ranging from disposable consumer goods to high precision
engineering components.
What Is Plastic Injection Moulding
The majority of thermoplastics, such as nylon, polystyrene and polycarbonate are produced
through the injection moulding process, as are the majority of all plastic products ranging from
micro parts to large components such as wheelie bins.
Also, the fact that this process can produce items that range greatly in shape and size has resulted
in the extension of the boundaries of plastic design and enabled significant replacement of traditionally used materials in part due to light
weighting and freedom of design.
What Is Plastic Injection Moulding
The basic process involves the introduction of a material, via a hopper, into the
injection moulding machine. This moulding machine consists of a heated barrel, equipped with a reciprocating screw
(which is driven by a hydraulic or electric motor), which itself feeds the molten
polymer into a temperature controlled split mould through a channel system of
runners and gates.
What Is Plastic Injection Moulding
The reciprocating screw plasticises (melts) the polymer as well as acting as a ram
during the injection phase. The shearing action of the screw on the polymer also
provides additional heating during this part of the process and the polymer is then injected into a mould which is created
according to the required dimensions of the finished product.
What Is Plastic Injection Moulding
The pressure used when injecting the polymer into the mould is very high and
(depending on the material being processed) this pressure could even reach
one thousand atmospheres.
What Is Plastic Injection Moulding
The tools used in the plastic injection moulding process are typically made out of steel (as it can be hardened and plated if required) and alloys of aluminium to allow increased cutting and hand
polishing speeds. The costs associated with the production of the tools required in this process
mean that injection moulding tends to lend itself to high volume production of plastic products
and components.
What Is Plastic Injection Moulding
There is a large number of companies which specialise in the production of plastic
components and products via injection moulding and the supply of moulds
for the process. The fact that the service provided by these companies is demanded
by a wide range of customers (including those in the defence and aerospace
industries) shows the importance of this process and the necessity of its products.
Dual Metallising Limited
Unit 12/14
The Business Centre
James Road
Tyseley
Birmingham
B11 2BA
Telephone: 0121 708 2748
Fax: 0121 708 2256
Email: [email protected] http://www.dual-metallising.co.uk