Polystyrene-2

Polystyrene-2 - In manufacturing there are various ways to...

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In manufacturing there are various ways to produce components, all of which are used for different reasons. The most common process is injection moulding, and it is able to produce a large number of parts with a high accuracy without wasting any material. Bottle caps, cups and car panels are some common products made by injection moulding. Clamping unit The clamping unit is one of the three basic parts of the injection moulding apparatus and its main function is to hold the two halves of the mould together, however there are three types which are used for various loading situations. For a tonnage below 1300kN (150 tons), toggle claps are used. With toggle clamps, the crosshead is pushed forward via an actuator (usually a hydraulic cylinder or ball screws driven by an electric motor), which in turn, extends the toggle links to push the moving platen to the closed position. At the start of the process, the speed in which the moving platen travels is high and the mechanical advantage is low, however, at the end of the process the speed is low and mechanical advantage is high. Hydraulic clamps are often used for machines with a tonnage of
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Polystyrene-2 - In manufacturing there are various ways to...

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