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The development course
Wheel hub is an important part of auto parts. With the growth of China's auto parts industry, wheel hub industry has gradually grown stronger. According to "2013-2017 China Auto Hub Industry Market Foresight and Investment Strategic Planning Analysis Report" data show that since 2010, macroeconomic policies focusing on stimulating domestic demand have provided the foundation and guarantee for the steady development of the auto industry. From the trend of the automobile market in 2010, macroeconomic policies had an impact on the automobile market throughout the whole year. The annual automobile production and sales reached 18.2647 million and 18.0619 million respectively, setting a new high and maintaining the world's first automobile production and consumer status. In 2011, the economy continues to maintain stable growth, and auto production and sales are expected to continue to gain a large increase; China's auto production is expected to exceed 20 million units in 2011 and 25 million units in 2015. In the long run, the rapid growth of China's GDP provides a broad demand space for the auto industry, and the demand for auto wheels will increase with the growth of auto sales. In the next few years, China's auto sales are expected to continue to grow steadily, providing opportunities for the development of auto hub industry.
China's low retention rate and increasing purchasing power determine that China is still in the period of rapid automobile popularization. It is expected that the annual production and sales scale of Chinese automobiles will reach 50 million in the future, and the corresponding wheel industry domestic OEM and AM market scale will be 39 billion yuan and 9 billion yuan respectively. With the continuous improvement of the international competitiveness of Chinese wheel enterprises, the future wheel export market size is expected to break through 13 billion yuan. Benefiting from the continuous rapid growth of new car sales in China, the continuous improvement of car ownership, and the improvement of the international competitiveness of Chinese wheel enterprises, it is expected that the market size of the wheel industry is expected to be close to 60 billion yuan in the future, and will continue to develop rapidly in the next 3-5 years.
classification
Wheels on the market can be divided into steel wheels and alloy wheels according to the material, and each has its own advantages and disadvantages.
The main advantage of steel wheel is that the manufacturing process is simple (generally casting process, such as aluminum alloy wheel is generally produced by low-pressure casting process) the cost is relatively low, and the ability to resist metal fatigue is very strong, that is, we commonly known as cheap and strong. But the shortcomings of steel wheel is relatively prominent is ugly appearance (can say no appearance at all), large weight (the same wheel steel is much heavier than aluminum alloy material), inertia resistance, heat dissipation is also relatively poor, and very easy to rust. Alloy wheel hub just can make up for such a problem, lighter weight, small inertia resistance, high production accuracy, small deformation at high speed rotation, small inertia resistance, is conducive to improve the straight line performance of the car, reduce tire rolling resistance, thereby reducing fuel consumption. The thermal conductivity of alloy material is about three times that of steel, and the heat dissipation is good. It can play a certain role in the thermal attenuation of the brake system, tire and brake system of the vehicle. The alloy wheels of the original car on the market are mainly aluminum alloy, of course, many modified wheels will choose chromium, titanium and other elements as the basic material in order to achieve certain special requirements and visual improvement. However, compared with the steel wheel, the price of the alloy wheel is much more expensive, so often in many low-end level of the original car, steel wheel will appear in the low model, and the alloy wheel is the high model with the standard.
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