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Injection Moulding Features

Jul 06, 2018

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    Injection Moulding

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    Injection point

    The point where the plastic

    entered the mould.

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    Ejection points

    Plastic must be ejected square

    to the mould 

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    Tapered sides

    Tapered sides allows the

     product to be removed from

    the mould. Taper can be as

    little as 1:200 

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    Spark Erosion

    This gives the surface of the

     plastic a textured finish

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    Location Points

    ocation points or bosses areused to locate parts together.

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    Break lines!sed as an aesthetic feature"

    to give strength and rigidit#

    and to disguise an# blemishes.

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    Webs and Ribs

    These give strength and rigidit#

    to the product.

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    Material Information

    !seful for when the product is

    rec#cled.

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    Date symbol

    !seful for qualit# assurance

    and to trace products if there

    are problems or faults.

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    Produces large quantities of plastic components quickly and

    very accurately.

    The cost of tooling and moulds is very expensive therefore it is

    important to sell large numbers of the products being

    manufactured to recover initial set up costs.

    Solid intricate form / commonly used to mould thermoplastics /

    split lines / injection points / ejector points / shrinkage / draft

    angle / surface texture / webs and ribs

    Injection Moulding

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