What is the cord?

Release time：2016-6-20 8:54:01        Click times：829

The curtain cloth is used as the strong strands, with fine, single weft yarn, woven fabric with skeleton tire. The warp weft arrangement arranged closely, sparse, like a curtain, named.
The curtain cloth used as rubber tires of the skeleton, which is under great pressure, shock load and strong vibration. The curtain cloth is an important material of tire performance and life. Also called warp cord) under load, the fixed position of warp weft.
The requirements of cords is: (1) strength and initial modulus of high; heat; third, fatigue resistance; structure stability; it can and rubber adhesive.
Cotton cord yarn, viscose rayon cord, nylon cord, steel wire cord, nylon cord, polypropylene cord, aramid cord, cord fiber, pen curtain line cord. Cotton cord strength is low, the manufacture of tire body need a multilayer curtain cloth, high use due to the movement of frictional heating, heat slowly, therefore its application is gradually reduced. High strength adhesive wire cord with fatigue resistance, heat resistance, the advantages of small deformation of carcass, but due to the viscose rayon hygroscopic, use need tyre protecting the surface integrity and no cracks, in order to avoid moisture and reduce the strength. Nylon cord with high intensity, made of carcass impact resistance, good anti fatigue performance, tire temperature rise less, but there are characteristics of thermal contraction of the matrix is easily deformed. Made of steel wire cord matrix of high strength, low rolling loss, impact resistance, good wear resistance, but the rigid, easy to damage the vehicle chassis parts. In addition, there are polyester cord, glass fiber cord etc.. In the 70s of the 20th century appeared the aramid cord (see aromatic polyamide fiber), with high strength and high modulus, heat resistance and dimensional stability and other advantages, suitable for engineering vehicles, aircraft, etc. to the high performance requirements of the tire. In addition to carbon fiber fabric, but also the future development trend of pen fiber.

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