After decades of development, China's automobile industry has become an important industry in the national economy. With the progress of technology and the improvement of various performance indicators of automobiles, governments of various countries have become more and more stringent requirements for energy conservation and environmental protection. Therefore, automobile lightweight has become the main direction of automobile development. Generally, the weight of auto parts can be reduced by 1%, which can save 1% of fuel. For every 1% reduction in the weight of moving parts, fuel can be saved by 20%. Automobile wheels are parts installed on automobiles to support tires, and they are also one of the important moving parts of automobiles.

Carbon fiber automobile wheels are manufactured by parting molding or material preforming process, and the thickness of the product after the mold is partially uneven: in order to maintain the integrity of the carbon fiber fiber, the uneven thickness cannot be processed and finished like metal materials.

If it is a carbon fiber composite material, the screw holes are installed and worn, causing installation balance problems, affecting driving and safety. In addition, the two-piece carbon fiber hub needs to be locked at the hub lock and spoke screws. If the screws are removed, the carbon fiber screw holes will wear out, which will not meet the locking requirements and affect the driving safety of the car.

The thickness of the yarn layer is 0.2-1mm, the carbon fiber spokes are formed by hollow blow molding, the thickness of the spokes is 6mm-20mm, and the filling sealant is glue that is cured at high temperature.