Advantages of injection moulding

Written by justin mitchell
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Advantages of injection moulding
Injection moulding can create a variety of shapes. (plastic fish image by timur1970 from Fotolia.com)

Injection moulding is a method of creating plastic products. Most plastic products are made using injection moulding. This process is attractive to manufacturers because of multiple advantages it provides over other plastic moulding methods. Overall, injection moulding is simpler, more reliable, more versatile and more efficient than most other types of injection moulding.

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High pressure

Plastic injection moulding operates at a very high pressure, meaning that the melted plastic is pressed harder against the mould than in other moulding processes. This provides the advantage of a greater amount of detail in the design of the piece being moulded, included complex geometry or detailed features.

Speed

The injection moulding process is also very fast compared to other moulding processes. A full injection moulding process takes very little time, which allows for far more products to be generated from the same mould. Therefore, you get a lot more mileage out of a single mould. Injection moulding is highly efficient.

Automation

Injection moulding is a highly automated process. Most injection moulding is done by machines that a single operator can run. Therefore, very little overhead will have to go into paying the labour force in a plastic injection moulding process.

Monomer-free

Injection moulding is a monomer-free process. Monomers are a type of plastic that create a lot of fumes, which many people have a negative physical reaction to. Therefore, any moulding process that employs monomers require a good deal of ventilation. If you use injection moulding, you will not have to worry about these problems.

Multiple plastic types

When you use injection moulding, you have the option of moulding two different types of plastic at once. This process is called co-injection moulding. Therefore, you do not have to worry about access to a particular type of plastic.

Thermoplastics

Injection moulding makes use of thermoplastics. Thermoplastics can be injected into the mould, then the excess can be remelted and used again. Therefore, injection moulding can save you on materials. Thermoplastics can also come in a wide variety of densities or strengths.

Fillers

Injection moulding provides you with the option of using fillers in your moulds. Fillers are used to reduce the density of the plastic as it is moulded as well as provide greater strength to the product once it is moulded. This is another method of reducing the total cost of the process.

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