12-12-2012, 05:24 PM
manufacturing facilities
Tire manufacturing.docx (Size: 303.4 KB / Downloads: 61)
Tyre manufacturing
Tyre manufacturing machine involves number of steps and cumbersome processing for producing high quality and durable tyres. These tire manufacturing machines perform quite a few functions right from compounding and mixing, from milling to extruding and calendering. The size and functioning on the tyre manufacturing machine differ with the type of tire that can be of truck, car, scooter, trailer, airplane and so on. Broadly speaking the tyres can be car and minivan tires, Suv and Truck tires, sport performance tires and winter tires
Natural rubber is the chief material that is used to make tyre. In tyre manufacturing companies, along with rubber, carbon black and other chemicals are used while tire making. After the complete process we get a tire that is made up of different components including inner liner, body ply, sidewall, beads, apex, tread, cushion gum along some other tire components. Rubber tire manufacturing machine manufacturers make all kinds of tires.
Inner liner
The inner liner is an extruded halobutyl rubber sheet compounded with additives that result in low air permeability. The inner liner assures that the tire will hold high-pressure air inside, without the air gradually diffusing through the rubber structure.
Body ply
The body ply is a calendered sheet consisting of one layer of rubber, one layer of reinforcing fabric, and a second layer of rubber. The earliest textile used was cotton; later materials include rayon, nylon, polyester, and Kevlar. Passenger tires typically have one or two body plies. Body plies give the tire structure strength. Truck tires, off-road tires, and aircraft tires have progressively more plies. The fabric cords are highly flexible but relatively inelastic.
Sidewall
Sidewalls are non-reinforced extruded profiles with additives to give the sides of the tire good abrasion resistance and environmental resistance. Additives used in sidewall compounds include antioxidants and antiozonants. Sidewall extrusions are nonsymmetrical and provide a thick rubber area to enable molding of raised letters and sidewall ornamentation.
Beads
Beads are bands of high tensile-strength steel wire encased in a rubber compound. Bead wire is coated with special alloys of bronze or brass. Coatings protect the steel from corrosion. Copper in the alloy and sulfur in the rubber cross-link to produce copper sulfide, which improves bonding of the bead to the rubber. Beads are inflexible and inelastic, and provide the mechanical strength to fit the tire to the wheel. Bead rubber includes additives to maximize strength and toughness.