TYRE CORD FABRIC

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Slide 1: 

A SEMINAR ON Tyre Cord Fabric Submitted to FACULTY OF ENGINEERING & TECHNOLOGY RAJASTHAN TECHNICAL UNIVERSITY, KOTA for The Partial Fulfillment of the Requirements for Degree of Bachelor of Technology in Textile Technology by: Shikha Agrawal 07EMBTT050 Under the guidance of DR. V. P. SINGH Department Of Textile Technology     M.L.V. TEXTILE & ENGG. COLLEGE BHILWARA (RAJASTHAN) (An Engineering College of the Rajasthan Govt.) 2010-2011

TYRE CORD FABRIC : 

TYRE CORD FABRIC

CONTENTS : 

CONTENTS Introduction Parts of tyre cord Structure of tyre cord Raw material & its properties Yarn properties Type of yarn Tyre cord manufacturing New Developments Bibliography

INTRODUCTION : 

INTRODUCTION Tyre Cord :- It is provided that has a main portion and a tabby. The tire cord fabric is comprised of warp cords oriented in the longitudinal direction and weft yarns oriented in the lateral direction. The warp cords are used in reinforcing pneumatic tires.

PARTS OF TYRE CORD : 

PARTS OF TYRE CORD There are five main parts to an tyre cord that help to accomplish this feat. Carcass Breaker Treads The side walls Bead

STRUCTURE OF TYRE CORD : 

STRUCTURE OF TYRE CORD

Side wall is a rubber sheet 1.5-3.5 mm thick protecting the carcass and tube from mechanical damages and moisture penetration.The carcass is the most important part of the tyre as it supports the full load. : 

Side wall is a rubber sheet 1.5-3.5 mm thick protecting the carcass and tube from mechanical damages and moisture penetration.The carcass is the most important part of the tyre as it supports the full load.


RAW MATERIAL FOR TYRE CORD : 

RAW MATERIAL FOR TYRE CORD Nylon 66 But Polyester,Viscose is fastly replacing Nylon.

PROPERTIES OF NYLON 66 : 

PROPERTIES OF NYLON 66 Nylon 66 tends to form strong interchain hydrogen bonds. This results in a stronger & more crystalline polymer that softens or melts at relatively higher temperature. It has a higher tenacity and is less subjected to shrinkage. Better fatigue resistance. Higher resonance frequency. No flat spotting.

PROPERTIES OF NYLON 66 : 

PROPERTIES OF NYLON 66 Strength(Kg) 7.9 12.0 18.0  El(%) 11.5(@4.5kg) 12.0(@6.8kg) 12.0(@10.1kg)   EI@Break(%) 21.0 21.0 21.0  Shrinkage(%) 3.0 3.0 3.5  Denier(d) 840 1260 1890   Heat Resistance(%) 90.0 90.0 90.0

REQUIRED PROPERTIES OF INITIAL YARN : 

REQUIRED PROPERTIES OF INITIAL YARN High Breaking Strength. High Elasticity. Good heat resistance. Low hygroscopic. High resistance to multiple deformations during stretching. Compression. Bending and Rubbing. The fatigue strength. Proper adhesion of cord with rubber. Uniformity of all properties and structure.

Structure of Tyre Cord Fabric : 

Structure of Tyre Cord Fabric

TYPE OF YARN : 

TYPE OF YARN Type 728 – Bright, high tenacity, heat stabilized and fatigue resistant yarn with good adhesion property. Type 802 – A yarn similar to above yarn type but with even high tenacity and further enhanced fatigue resistance.

TYRE CORD MANUFACTURING : 

TYRE CORD MANUFACTURING The cord fabric consists of yarns of a linear density of 500 tex in warp and common cotton yarns with a linear density of 16.6-25 tex in weft. The properties of cord depend on the number of plies of thinner and number of twists to be given in yarn.

MANUFACTURING PROCESS : 

MANUFACTURING PROCESS Steps of manufacturing tyre cord- Spinning- By melt spinning we get filaments. Twisting- Its purpose is to- To prevent filament breakage. Improved coherence of yarns. To improve fatigue resistance. To improve weaving workability.

Slide 17: 

Cabling- It is done by ply cable winding machine. Yarn tension of about 0.02 cN/tex is recommended.5 4. Weaving 5. Dipping 6. Vulcanisation- It is a process by which rubber is heated with sulphur to create a network of chemical cross-links.

Slide 18: 

Tyre Cord fabric manufacturing is carried out on special looms:- Heavy power looms TT-160 Automatic loom AT-175K CTE175-KM

NEW DEVELOPMENTS OF CORD FABRIC : 

NEW DEVELOPMENTS OF CORD FABRIC For high load lifting capacity cord is made for steel yarn. Cord is manufactured of glass fibres in some countries. In recent years, cushion cord fabric for these tyre is usually made from stiff fibres with the minimum elongation.

BIBLIOGRAPHY : 

BIBLIOGRAPHY Processing of man-made fibres.(V.Usenko) Fibre2fashion.com Tyrecordfabric.com

Slide 21: 

THANKS Query ? ? ? ? ? ? ? ? ? ?

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