SUMMER INTERNSHIP PROJECT

ON

TYRE MANUFACTURING PROCESS AT J K TIRE & INDUSTRY LTD.

BY :- MAYANK VERMA AMITY UNIVERSITY, NOIDA

Company Brief

Radial Pioneer – First Indian company to manufacture radial tyre.

Manufacturer of India’s largest OTR tyre- VEM 045-40.00.

Overall 21% market share in passenger car segment.

Preferred Partner of leading Automotive Manufacturers – VW, GM, MARUTI, NISSAN, TATA MOTORS, M&M, Ashok Leyland, TAFE, VOLVO-EICHER, Daimler (Bharat-Benz)

Competitors

Major Competitors Minor Competitors

Tyre Manufacturing Process

1) Banbury Blending2) Milling3) Extruding and Calendering4) Component Assembly5) Curing6) Finishing and Inspection

1. Banbury Blending

In this process the natural rubber and synthetic rubber is blended with some specific chemicals to get the rubber in the used form.

Specific amount of carbon is added at the initiation of this process.

2. Milling In this process the shaping of rubber

takes place as the rubber sheet comes out from banbury mixer is not that perfect.

This process takes place more than 2 or 3 times for the same rubber lot, just to ensure the regularity of the rubber sheet.

3. Extruding / Calendering

Extruding process is a very important process as it converts the thick and heavy rubber sheets into thin rubber sheets.

Many of the tyre components are made by this process such as Tread, inner liner etc.

This process is done by several different machines such as Triplex extruder, Doublex extruder etc.

Calendering is the process similar to sandwiching, as it sandwich or calender the thin and sharp steel wires between the two thin layers of rubber sheet.

This process produces the steel belt which is required in the radial car tyres.

4. Component Assembly

In this stage all the tyre components are assembled together to make a “ Green Tyre “ with the help of assembling machine.

5. Curing This is the process where the Green Tyre

is cured in a Dom shape machine having mould in its inside part at both upper and lower end.

The tyre mounted on a bladder which is inside the Dom and then the both ends of it are closed and the tyre is cured in the presence of Dom Steam, High Pressure Steam, Hot Water and Cold Water.

6. Finishing / Inspection Finishing is to be done as some

irregularities are generated on and around the tyre after the curing process.

It is done manually by some skilled workers.

Inspection is the last stage or process of tyre manufacturing which is very important regarding tyre’s quality.

It includes 3 types of inspection:-1. Manual inspection2. Weight balancing3. X-ray inspection

Conclusion

Learned so many ways that how to prepare a tyre or mass production of the tyres effectively and efficiently.

Some specific rules are necessary before doing the production.

Skilled labour is required to handle the machines.

And I also learned that how to work in an industrial atmosphere sincerely and systematically.

THANK YOU