With the development of plastic technology, the field of plastic products replacing metal products has become more and more extensive. The main function of plastics used in automobiles is to make automobiles more lightweight, so as to achieve the purpose of energy saving, emission reduction and environmental protection. It is precisely based on the trend of lightweight automobiles, it can be expected that the demand for plastic parts in the automobile industry will continue to be strong.
Western developed countries have taken the amount of plastic used in automobiles as an important criterion to measure the level of automobile design and manufacturing. Globally, Germany and Japan are far ahead of other countries in the amount of plastic products used in automobiles. Plastics are nearly 300kg, and each car in Japan uses an average of 100kg of plastic. In comparison, the most plastic products used in each car in my country are only 70kg. There is a big gap with developed countries. There is still a big improvement in automotive plastics in the future. space.
For new energy vehicles that are still in their infancy, the "lightweight" of the whole vehicle is more realistic. Tests have shown that a traditional fuel vehicle will increase its mass by 20%-40% after installing batteries and other energy-saving equipment without any changes. Due to the addition of the "three-electric system", the quality of new energy vehicles increases significantly, which seriously affects its power consumption, power, braking performance, passive safety, cruising range on a single charge, dynamic load of parts and fatigue life. Research shows that the quality of new energy vehicles is reduced by 10%, the corresponding cruising range can be increased by 5%-10%, and the cost of batteries can be saved by 15%-20% and the cost of daily wear and tear by 20%. Therefore, the demand for weight reduction of new energy vehicles is more urgent than that of traditional vehicles.
To sum up, in the coming period, the lightweight trend of the automotive industry will continue to boost its demand for plastic parts. We also look forward to the application of new materials that are lighter, more durable, environmentally friendly and energy-saving.
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