Manufacturing Process of an Automobile Tire
Tires found on automobiles, constitute a rubber casing over the rim of a wheel, entailing a gripping surface for traction and contribute as a cushion for the wheels of a moving vehicle. Tires in respect of most of the vehicles are found to be pneumatic, where air is put under pressure inside the tire. Normally pneumatic tires contain an inner tube to maintain air pressure; however, presently they are designed in order to form a pressure seal with the rim of the wheel. The pneumatic tire with an inner tube was invented by Robert Thomson in 1845, however, it was not popular until its reinvention by John Boyd Dunlop in 1880s, Natural rubber constitute the prime element in the manufacturing process of tires, irrespective of the fact that synthetic rubber is also applied. So as to strike a balance among strength, resiliency and wear resistance, the rubber is required to be treated with a variety of chemicals and then heated. Charles Goodyear, an American inventor could find out the process of strengthening rubber through vulcanization or curing, taking clue, when during his experiment the mixture of India rubber and sulfur dropped on a hot stove forming a hard lump. Presently, large efficient factories having skilled personnel generate
After completion of the curing the tire is allowed to cool and inspected for flaws like bubbles or voids in the rubber of the tread, sidewall and interior of the tire. That facilitates shaping of the tire in line with the sides of the mold. (Tire Production Info) Tire inspection involves the process of trimming of the mold flash and micro-vents, visual inspection for appearance and to spot obvious defects, x-ray examination to check internal structure and to spot defects etc. Inner-liners constitute the inner-most layer of the tire that makes possible the retention of the compressed air inside the tire and maintain tire pressure. The raw rubber used in the manufacturing process of tires is prepared with a mixture of liquid latex and acids that make rubber to solidify. Irrespective of the fact that automation controls most of the steps in manufacturing process, skilled personnel are still necessitated to assemble the parts of a tire. The mold has a large flexible balloon shaped like calm. (United States Congress House Committee on Interstate and Foreign Commerce; Subcommittee on Oversight and Investigations, 514). In order to prepare the green tire as has already been seen it necessitates the extruder and a heavy duty machine known as Calender that is equipped with three or more chrome plated steel rolls that revolve in opposite directions. The polyurethane tire manufacturing process involves assembling of reinforcing components like plies, belts and beads those are prepared to go through the mold cavity. The assembler takes the help of special power tools to shape the edges of the tire plies. (How a Tire is made) Moreover the entire production process which are associated with the manufacturing as well as the assembling of various components that result into a finished product are required to undergo rigorous monitoring during each phase or step of the process. (Tire Production Info) Phillips is considered to be the pioneer in the rubber industry that applied a process for generating a superior carbon black from oil for applying in synthetic rubber as a reinforcing element. The regulation of roller temperature is attained by means of the steam and water. (Tire Production Info) The proportion and sequencing in which the ingredients are mixed is considered to be very crucial.
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