The Pros And Cons Of Tyre

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Tyre is made up of natural rubber or synthetic rubber .natural rubber is present as milky liquid or latex in the bark of rubber tree, HEVEA BRASILIENSIS. Natural rubber combines with carbon, oil, sulphur and the chemicals at a temperature of 100-140oC and under goes a number of stages of processes. Synthetic rubber is any vulcanisable man made rubber like polymer. By retreading tyre we are doing a good job which is in favour of Natural resources. Tyre Retreading is a new technology, where the old tyres are made serviceable by removing worn out and damaged treads and replacing it with new treads. New treads are available in the market in form of rolls and in brief, in can be put on old tyre and cured with the help of steam. …show more content…

The grooves which are cut on the tyre surface are called tread. These treads ensure the gripping action between the road surface and tyre. After the use of tyre the depth of treads becomes less and a slippery action takes place between road surface and tyre. The co-efficient of friction becomes less. A tyre is in no more condition to be used again. Now, here becomes the choice either to replace the tyre with a new one which is very expensive or to retread the tyre which is less expensive as compared to the cost of new tyre. Retreading process can also rectify minor cuts or defects on the side walls of tyre, beads and punctures in a single stage. A tyre can be retreaded or not this is entirely dependable on the type of use of tyre and condition of tyre

MANUFACTURING PROCESS
The manufacturing of retreading rubber is done in the following stages: I) Compounding: Removing unwanted materials such as nails, rivets etc. II) Mixing: Reclaimed rubber and oils III) Extruding: The mixture of rubber so obtained is put into extruder to form rubber sheets. IV) Retreading: Before retreading tyre is buffed and it is allowed to stick properly. Tyres are buffed properly to remove all undesired rubber and to clean surface. The retreading rubber is now put on its outer surface with an adhesive solution.

Retreading process is of two types:-
1. Hot retreading
2. Cold

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