Prospects for Plastic Parts: The Trend of Automobile Lightweight Brings Prosperity to the Demand for Engineering Plastic Parts
发布时间：
2026-07-14
作者：
成峰
With the development of plastic technology, the field of replacing metal products with plastic products is becoming increasingly widespread. The main role of plastics in automobiles is to make them more lightweight, thereby achieving the goals of energy conservation, emission reduction, and environmental protection. Based on the trend of automobile lightweight, it can be expected that the demand for plastic parts in the automotive industry will continue to be strong.
With the development of plastic technology, the field of replacing metal products with plastic products is becoming increasingly widespread. The main role of plastics in automobiles is to make them more lightweight, thereby achieving the goals of energy conservation, emission reduction, and environmental protection. Based on the trend of automobile lightweight, it can be expected that the demand for plastic parts in the automotive industry will continue to be strong.
Western developed countries have already taken the amount of plastic used in automobiles as an important standard to measure the level of automotive design and manufacturing. Globally, Germany and Japan use significantly more plastic products in automobiles than other countries, with Germany using nearly 300 kg of plastic per car and Japan using 100 kg of plastic per car. In comparison, China uses only 70 kg of plastic products at the most per car, There is a large gap with developed countries, and there is still much room for improvement of automotive plastics in the future.
For new energy vehicles that are still in their infancy, the "lightweight" of the entire vehicle is even more practical. Tests have shown that a conventional fuel car with batteries and other energy-saving devices installed without any changes can increase its mass by 20% to 40%. Due to the addition of the "three electric systems", the quality of new energy vehicles has significantly increased, seriously affecting their power consumption, power, braking performance, passive safety, primary charging range, dynamic load of components, and fatigue life. Research shows that a 10% reduction in the quality of new energy vehicles can increase the corresponding range by 5% to 10%, saving 15% to 20% in battery costs and 20% in daily wear and tear costs. Therefore, the demand for weight reduction of new energy vehicles is more urgent than traditional vehicles.
In summary, in the future, the lightweight trend in the automotive industry will continue to boost its demand for plastic components.
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