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Figure 1 – The tyre manufacturing process (Energy Manager Training, 2004).

There is a fabric component to tyres as well. The fabric, usually nylon, is

created separately from the rubber process and wound on a crude rubber carcass in

uniform sheets. Steel wires are also wound around the tyre along with steel “beads”

(Refer to Figure 2 for a cross section diagram of a tyre). Additional chemicals added

with the steel wire help to ensure a proper bond to the rubber (Energy Manager

Training, 2004). The tyre at this stage of the process is referred to as a “green” tyre.

All the components are there, but the rubber is too soft for use. The rubber is then

cured and “vulcanized” with additional chemical components along with heat to

create a hard rubber material that has a much longer life on the road (Frederick,

2000).

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