Stock：002725
At present, automobile lightweight has become the focus of research and production in the industry. It is recognized in the industry that CFRP (carbon fiber reinforced composite) is the best way to reduce the weight of new energy vehicles at present. CFRP has many advantages, such as high strength, high modulus, light weight, corrosion resistance, excellent comprehensive performance and so on. The application of carbon fiber can reduce the weight of cars by 30% - 60%, which is known as the "king of lightweight". It is the leader of the "slimming revolution" of new energy vehicles and plays a key role in vehicle lightweight.
Yueling, using high-quality carbon fiber raw materials, such as Toray T700 and T800 prepreg layup, RTM and other processes, combined with the analysis of the force structure, the fabric stacks in different directions ensure an all-round balance to present high-quality, high-quality carbon fiber wheels. Moreover, with its high-quality product quality, Yueling has passed the globally recognized Germany TUV certification,Japanese VIA system certification for automotive wheel hubs.
Customized carbon wheels in one piece, created by Yueling, inserting RFID to make the whole production traceable, using RTM, painting layer reverse osmosis and other techs, to make the wheel self to reach the strict requests for high strength, light weight and super design. Yueling offers the personal tailor service. The special designer and technician will work for you from the very beginning, to make the wheels only for your special car and fit your loved car perfectly.
The carbon wheel in two-piece, created by Yueling, seperating the spoke part and barrel into two parts, makes the production easier and lower the cost quite a lot.
The alloy spokes with the shape change are matched with the pure carbon fiber rims, which fully utilizes the material properties of carbon fiber and aerospace Al, taking into account the product design and structure, so that the beauty and performance are perfectly combined.
Al/C mix motorcycle wheel, created by Yueling, is combined the aluminum center hub and carbon barrel. The AL hollow hub and high strength carbon barrel combination, makes the wheel have variable designs, get the highly accurate fitment, and reach the lightest weight at the same time.
Benefited from the breakthrough of the material, the carbon wheel for commercial vehicle, has higher strength and lower weight than the alloy wheels. This meets the request for the weight reduce and do help on the fuel usage and carbon emission reduction.
• high strength (5 times that of steel)
• excellent heat resistance
• Excellent thermal shock resistance greatly improves its safety
• low coefficient of thermal expansion (small deformation)
• small thermal capacity (energy saving)
• the proportion is small (1/5 of steel), which reduces the integral inertia and greatly shortens the braking distance when the vehicle is at high speed.
• excellent corrosion and radiation resistance, which can resist all kinds of harsh environments
• excellent fatigue resistance
All the weight of the wheel is unsprung mass.Unsprung mass will affect the suspension system, thus affecting the ability of the tire to remain on the ground. Carbon fiber wheel hubs reduce the unsprung mass by 40-50% compared with the original aluminum wheel hubs. A lighter wheel hub has less power to move, so they can absorb and recover the defects on the surface faster when they receive bumps, and the turning conditions are better. This means that the tyre will be in contact with the ground for a longer time and can produce more and more stable grip. Because this increases the control of vertical movement, the lighter wheel hub improves the turning grip, braking consistency, provides better riding comfort, and reduces the wheel hub runout, so the dynamic acceleration and braking performance are significantly improved.
In short, the meaning of moment of inertia is that it is very difficult to change the speed of rotating objects. It is largely affected by the distribution of weight, speed and mass relative to the rotating shaft (uneven weight distribution has a great impact on its moment of inertia). When the mass moves outward from the central axis, it is relatively difficult to accelerate or decelerate. This is because it has too much moment of inertia. Most of the quality of carbon fiber wheel hub is in its center. Considering the safety and practical application of the installation disk surface, the material selection and process will make the installation disk thicker. However, for an aluminum hub with the same mass, its mass is evenly distributed to the rim from the center through spokes. This means that carbon hubs have significantly smaller moment of inertia than aluminum hubs of the same weight.
The rotating wheels on cars or motorcycles have gyroscopic effect. Gyroscopic effect also has obvious influence on cars. The heavy wheel hub produces a lot of inertia, which greatly affects the feeling of steering. It is like a filter, which feeds back the strength of the wheel hub and the tire and offsets it by increasing the steering resistance. Correspondingly, the steering wheel needs to be turned frequently during driving. Carbon fiber wheel hub can reduce steering torque by more than 50%, greatly improving steering feedback and accuracy. When combined with super rigidity, carbon fiber wheel hub can provide extremely fast operation response and more flexible driving feeling of changing direction. As the vehicle speed increases, the steering effort required to overcome the resistance caused by the gyroscopic effect will also increase. The moment of inertia of the carbon fiber hub is much smaller, so the resistance to steering input is much smaller.