Molding

MOULDING

Moulding can be defined as the process of manufacturing by giving a particular shape to a liquid or a pliable raw material using a rigid frame called a mould.

A mould is a hollow box which is made from a pattern.While working a mould is filled with raw material like plastic ,glass, metal etc.The liquid cools down into the mould and gets harder adopting its shape.

TYPES OF MOULDING

Ijection moulding

Foam moulding

Extrusion moulding

Compression moulding

Blow moulding

Marix moulding

Plastic moulding

Vaccum plus asssist moulding

INJECTION MOULDING

DEFINITION

It is a process for giving a particular image to a pliable raw material by injecting into a mould.It can be performed with a host of materials, including metals, glasses and thermosetting and thermoplastic polymers. For getting the required shape the material is first heated barrel, mixed and injected into a mold cavity where it cools and get harder.Usually the products are made by engineers but the moulds are made by a mould maker from metals like steel or aluminium.Today it is widely being used for manufacturing entire body panels of cars.

PROCESS

It requires a screw type plunger to inject molten plastic material into a mold cavity.This solidifies intoa shape in the mould.It is used to process both thermoplastis and thermosetting polymers.Thermoplastic have characteristics which make them highly suitable for injection moulding, like the property of being recycled. this property helps them to be used everywherethey alsohelps the property of being soften and even flow from heating.If a thermosetting polymer is not ejected from the injection barrel in a timely manner, chemical crosslinking may occur causing screw and check valuesto seize and potentially damaging the inj...

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...ls freeze and material flows down a center channel. When core material enters it displace the skin matter in the centre of channel by pushing the skin ahead.

2-SHOT INJECTION MOULDING

This technology produce a part wit two different raw material orcolor in a single operation. The machine has two injection units- one vertical and one horizantal. By using rotating hoold, the machine produces a substrate of one color automatically and overhold, the part with second color.

FUSIBLE CORE INJECTION MOULDING

It is used in manufacturing of molded components with cavity or under cuts, which mold not be possible with tools having demoldable cores.

RAPID INJECTION MOULDING

Rapid injection molding allows us to make prototype injection molded parts in a production thermoplastic resin in 2 weeks. These parts may be used for full functional and fit fasting aswell as test marketing.