Producing tires the traditional way leads to high levels of pollution. The usage of unsustainable resources such as rubber and petroleum-based substances has a negative environmental impact. Additionally, with crude oil prices constantly changing, material costs are inconsistent and can cause higher manufacturing costs.
Green tires are manufactured in a way that reduces carbon dioxide emissions. They are specifically designed for lower rolling resistance, which leads to lower fuel consumption over a tire’s life. With a green tire, materials are made of recycled and sustainable materials. Green manufacturing practice thorough testing before the tire is sold and used on a car.
Planning & Design
The process starts with a computer calculation, which converts the car’s unique requirements into specifications. Afterward, a prototype is made to check the tire design’s capability. Designing a tire for a specific car or truck can take several months of screening, inspection, and testing by the tire manufacturer and the vehicle manufacturer. After all of that has been done, the vehicle’s manufacturer can commit to ordering tires.
Sourcing Sustainable Products
Finding and sourcing sustainable and recycled products is essential for any green tire to be produced. While several compounds are discovered in green tires, such as recycled plastics and rubber, silica has been the main commonality. It is a versatile and sustainable chemical compound that is found in sand, glass, and quartz. It’s important to know that when silica combines with a large quantity of natural rubber, this can be problematic. It is highly recommended that silica be combined with a specialized non-polar E-SBR rubber. Carbon black is typically used for traditional tires and is omitted when making a green tire. It has a harmful global warming impact, even worse than carbon dioxide.
The advantage of using silica in a green tire is that there is lower rolling resistance. Lower rolling resistance reduces fuel consumption. This reduces harmful emissions and reduces the cost of gas for the consumer. The disadvantage of a green tire is that it reduces the tire’s grip when it rains.
A Banbury mixer combines the different raw materials to create a homogenized gooey substance. The mixing procedure is computer-controlled and automated to guarantee uniformity. Then the compounded materials are sent out to machines for further handling.
Constructing the Tire
Constructing the tire takes place on the tire building machine. The first part to be put on the machine is the inner liner. It is a unique rubber that repels air and moisture, as well as adds strength to the tire. Then the plies and belts are cut to a specific size recommended by the engineer. These offer tire stamina and flexibility. Bronze-coated strands of steel wire are looped and implanted right into the tires’ sidewall to develop the bead, assuring an airtight fit of the rim. The sidewalls are taken into placement over the belt and body plies.
The green tire is now ready to be cured. The tire is positioned inside a mold to form a tread and the tire identification information. It is heated at least 300 degrees Fahrenheit for at least 12 minutes, stimulating a chemical reaction to bond the elements and cure the rubber.
Safety & Testing
After the tire has cooled, the tire is taken out of the mold and is ready to be evaluated. Each tire is thoroughly checked for imperfections. These could be bubbles, spaces in the rubber of the tread, sidewall, and the inside of the tire. Afterward, the tire is positioned on a test wheel, pumped with air, and rotated rapidly.
Random samples are pulled for safety tests. As part of these tests, tires are cut apart, x-rayed, operated on test wheels, road-tested to examine handling, mileage, and grip efficiency. If correctly taken care of, tires can last a long time- typically from 40,000 to 80,000 miles. When the tire has been adequately tested, it can be transferred to a distribution center and installed on a vehicle.
Manufacturing green tires are produced in an environmentally friendly way, using sustainable and recycled products. They are designed for reduced rolling resistance, which is means lower gas consumption. When getting a new set of tires, consider going green!