TIRE REINFORCEMENTS TE 552 Nonwoven Product Development Neslihan Yagmur
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TIRE REINFORCEMENTSTE 552
Nonwoven Product Development
Neslihan Yagmur
What is Tire?
• A tire is a ring-shaped covering that fits around a wheel's rim to protect it and enable better vehicle performance.
Duties of Tire
• Carry the burden of car
• Follow the direction given by the Steering
• give very good traction on the road, which keeps cars from sliding
• offer a smooth, comfortable ride
Tire Types
• Some examples;
– Type P
• passenger vehicle tire
– Type LT
• light truck
– Type T
• temporary, or spare tire
Layers of Tire
1) Airtight synthetic rubber liner
2) Carcass ply
3) Beads
4) Sidewall
5) Crown Plies
6) Tread
1. Airtight synthetic rubber liner
• Keeps air inside the tire
• Check your tires' air pressure monthly, as some air loss occurs over time
2. Carcass ply
• The carcass ply is comprised of thin textile fiber cables that are bonded into the rubber
• These fiber cables are largely responsible for determining the strength of the tire.
2. Carcass ply “Nonwoven Tech”
2. Carcass ply “Nonwoven Tech”
• Non-woven metal fibers entangled with one another
• Pores filled with rubber
• Metal fibers contains steel fibers with natural or synthetic fibers
• Generally polyester fibersUnvulcanized Rubber Layer
Unvulcanized Rubber Layer
Non-woven Layer
Materials for Non-woven Ply
• Metallic:– Copper
– Nickel
– Iron
– Steel
• Fibers:– Polyester
– Carbon fiber*
– Polyethylene terephthalate*
2. Carcass ply “Nonwoven Tech”
• Ratio of fiber:rubber; 80:20
• Thickness 1 to 5 mm;
– preferably 2-3 mm
• Fiber lenght 20-100 (40-60)* mm
• Fiber diameter 6-40 denier
3. Beads
• The beads are responsible for clamping the tire firmly against the rim of the wheel.
4. Sidewall
• giving the tire its height
• protects the tire against impacts with curbs and other objects
• contains all the markings which tell youinformation about the tire;
– speed rating
– load rating
– tire dimensions
5. Crown Plies
• Crown plies provide the rigid base for the tread
• provide centrifugal and lateral rigidity to the tire
• allowing the tire to flex sufficiently for a comfortable ride.
6. Tread
• The tread is designed to provide traction in a variety of conditions.
• Good tread design provides also resist to;
– wear
– Abrasion
– heat
REFERENCES
• http://www.tirebuyer.com/education/tire-anatomy-and-construction
• http://en.wikipedia.org/wiki/Tire
• U.S. Patent 3895665
• Rowell, J. D., Tire Tread Seperation, Rowell & Bennett
THANK YOU FOR YOUR ATTENTION
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