Air Resistance, Tyres And Friction

On highways, wide tires with wide width or small tires in front and behind are used in combination, for the following reasons. This is the minimum air resistance, or resistance that affects the speed of faster drag with lower resistance and better acceleration. And it can achieve a better maximum speed in order. Let's understand the concept of air resistance and resistance. As a basic example, when driving a car at 60 kilometers per hour, take your hands off the window with your palm in front.

All vehicles running on the road and air, such as cars, buses, cars, bicycles, airplanes, use rubber tires. Rubber is used for the manufacture of tires because it resists high temperatures when rubbed on the road. World rubber production accounts for about 60% of the tire industry. The tire is divided into four parts: inner tube, sidewall, frame, tire pattern. The most important factor in tire machining is carbon. Carbon is a fine black powder that makes the tire dark. Almost half of the rubber used per kilogram of rubber produced is carbon. In addition, carbon can increase the strength of the rubber and prevent tearing of the tire. Other materials used for tire processing are steel wire, nylon synthetic rubber and so on.

Annual consumption of SBR is maximum with synthetic rubber. SBR has good resistance to dynamic fatigue, aging and abrasion resistance and is mainly used for tire compounds. Because SBR has more dynamic heat generation than NR and BR, SBR composite materials are more suitable for light truck tires than heavy trucks and high speed tires. Rubber vulcanization improves their mechanical strength and makes them better fit for many applications. However, unlike thermoplastic materials, rubber vulcanizates having a three-dimensional crosslinked structure can not be melted and are difficult to rework. The European Tire Recycling Association estimates that the European Union (EU) will produce approximately 250 million tires per year. This corresponds to 6 million tons of used tires. Worldwide, new products are produced every year with estimated 1 billion tires.