Carbon fiber makes cars as light as swallows

Carbon fiber material makes cars as light as Yan - According to China Coatings Online (China Coatings Online ) experts, the history of heavyweights always have a "tall" story as a appearance, carbon fiber is no exception, that is, the well-known Edison invention of light bulbs story. In 1861, Edison made carbon wire as a filament material to successfully glow for 45 hours, so that mankind into the era of electric lights, carbon wire also for the first time on the historical stage. However, as the carbon filament in the bulb was replaced by tungsten wire, the carbon filament was left in the corner by history for nearly a century. It wasn't until the 1950s that carbon filaments came to the fore again, and the U.S. Air Force, looking for refracing-resistant materials, learned that the melting point of carbon was as high as 3,600 degrees, and had high temperature and high-strength properties, and invited carbon wire back into the lab, and invented the name of a blasting day: carbon fiber. Subsequently, after continuous research and development and improvement, the unique advantages of carbon fiber "outer soft inner gang" are fully demonstrated. Carbon fiber is lighter than aluminum, but stronger than steel, and has corrosion-resistant, high mod properties. Therefore, carbon fiber was first used in military aircraft, spacecraft and other fields, such as the U.S. F-35 fighter aircraft, and later in Boeing 787 and other civilian aircraft, wind turbine leaf fans, luxury yachts, medical and health care, leisure sports goods and many other fields have been more and more widely used. With the progress of science and technology, some new technologies and materials have been gradually applied to the automotive industry, and have a profound impact on the development of the automotive industry.
the application of carbon fiber materials in automobiles is most typical. Carbon fiber brings outstanding advantages to automobile manufacturing. Lightweight: Carbon fiber applied to automobiles, the most obvious benefit to automobile manufacturing is automotive lightweighting, the most direct impact is energy saving, acceleration, braking performance improvement. In general, the weight of the car is reduced by 10%, fuel consumption is reduced by 6% to 8%, emissions are reduced by 5 to 6%, acceleration is increased by 8 to 10%, and braking distance is reduced by 2 to 7m. In the new BMW 7-series body frame, carbon fiber-reinforced composites are used to reinforce roof beam structures as well as B-pillars and C-pillars, bottom side circumference, central passages and rear support. With a maximum weight loss of 130kg compared to the new BMW 7 Series from the previous generation, it is a leader in smart lightweight structures in the large luxury car market. For example, BMW i3 uses a large number of carbon fiber materials to manufacture the body, the listed model is 300kg less than the original design, the i3 model has been recognized by the market, but also to verify the feasibility and economy of low-cost fast-forming carbon fiber body mass production and manufacturing technology. Safety: Body lightweighting can make the center of gravity of the vehicle down, improve the stability of vehicle handling, vehicle operation will be more safe and stable. Carbon fiber composites have excellent energy absorption rates, collision absorption capacity is six to seven times that of steel, aluminum three to four times, which further ensures the safety of the car. Comfort: Carbon fiber composites have higher vibration damping, light alloys take 9 seconds to stop shaking, carbon fiber composites can stop in 2 seconds.
carbon fiber is used in automobiles and contributes a lot to the NVH improvement of the whole vehicle, which greatly enhances the driving comfort of the car. Reliability - According to China Coatings Online (China Coatings Online ) experts, carbon fiber composites have higher fatigue strength, steel and aluminum fatigue strength is 30-50% tensile strength, and carbon fiber composites up to 70-80%, so the application of carbon fiber composites in automotive materials for material fatigue reliability has been greatly improved. Increased body development: Because carbon fiber composites are designed to be more powerful than metals, they are easier to develop on a platform, modular and integrated scale. In this way, the hybrid body structure of carbon fiber body and metal platform can be modular and integrated for the traditional automobile body structure, which can greatly reduce the type of parts, reduce the input of workwear and shorten the development cycle. Especially for new energy vehicle enterprises, the application of carbon fiber body can not only save stamping, welding production lines and molds, fixtures input, reduce the ratio of fixed assets to capital, optimize the enterprise asset allocation structure, but also in the enterprise's marketing more influential. Looking at Mercedes-Benz, BMW, Audi and other high-end brand car companies in the product line of carbon fiber composite application layout. It can be predicted that the application of carbon fiber composite materials in automobiles will inevitably become the direction of development.
major challenges facing China's carbon fiber industry. Although carbon fiber materials have many advantages, their core technology is firmly in the hands of a few developed countries. On the one hand, the United States, Japan, South Korea and other developed countries strictly confidentiality of the technology, on the other hand, foreign carbon fiber industry leading enterprises began to enter the Chinese market, China's domestic carbon fiber enterprises increased pressure. China's research on carbon fiber began in the 1960s and 1980s, and progress has been slow over the years. Since entering the 21st century, the rapid development, especially with the rise of China's automotive industry, carbon fiber materials research and development, applications have been developed by great progress, and rapid growth. At the same time, carbon fiber also faces many challenges in the automotive industry, according to experts from China Coatings OnlineChina Coatings Online. First, the process is complex, mainly using thermal pressure tanks, vacuum import and other traditional processes, this process low production efficiency, long production cycle, high product cost, can not meet the requirements of large-scale production of automobiles; Times, this not only restricts its application and development in the automotive field, but also invisibly rejects low-end or autonomous car brands thousands of miles away;
in particular, carbon fiber from basic research and development, product design, production process selection to the production of automotive parts is a closely linked whole, each link is linked. Therefore, this has established a very high technical barrier to the development of carbon fiber in the automotive industry, requiring carbon fiber manufacturers must have a strong comprehensive strength. In the field of carbon fiber, Chinese enterprises are world-class competitive. At present, the automotive industry can provide carbon fiber materials research and development, design, processing, manufacturing one-stop service of Chinese enterprises are not many, Kand Composites Co., Ltd. is one of the premier enterprises. Over the years, Constand Group in order to fill the domestic carbon fiber material design, manufacturing, processing gaps, has been making unremitting efforts to improve research and development and production levels. Up to now, Kande Group has completed the layout of the new energy vehicle carbon fiber components industry ecological chain, according to China Coatings Online (China Coatings Online ) experts, the industrial ecological chain includes: CITIC's carbon fiber industry, Kande composites industry 4.0 version of intelligent carbon fiber body and components manufacturing plant, Munich-based KDX European Composites Research and Development Center and KDX Redding Automotive Lightweight Design Center.
as well as Germany's GFG and SGL's high-volume, automated production technical support. According to China Coatings Online (China Coatings Online ) experts, this complete ecological chain will provide global vehicle enterprises with systematic and globally competitive solutions, from design, research and development, sample testing, testing, small-scale production to large-scale delivery of a full range of services. During his visit to Germany in 2014, Zhong Yu, chairman of the Conde Group, was invited to a private luncheon with Chancellor Merkel and accompanied Premier Li Keqiang to China in 2015. The Group maintains close strategic cooperation with the German government and German companies, establishing a European Composites Research and Development Center in cooperation with the Institute of Carbon Fiber Composites of the University of Technology, Munich, and establishing a joint automotive lightweight design center with redding, the only German company in the world other than BMW with experience in the design of carbon fiber components for mass production. On April 6th, at the groundbreaking ceremony of the new optical film phase II project in Zhangjiagang, Philip Eller, President of BMW (China) Services Co., Ltd., announced that he would cooperate in depth with Kandexin in the field of window film, and that he would discuss the strategic layout of the carbon fiber solution for automotive lightweighting and Kande compound materials. The application of carbon fiber in China's automotive industry is extremely promising.
According to China Coatings Online (China Coatings Online ) experts, China is currently vigorously promoting the development of new energy vehicles, but limited to charging facilities are not perfect, battery life is short, electric vehicles sell at a high price, and other issues, restricting the promotion and popularity of new energy vehicles. In order to promote new energy vehicles better in the future, in addition to speeding up the construction of supporting infrastructure such as charging piles, effectively reducing the cost of new energy vehicles and improving the vehicle's battery life have become an urgent problem for new energy vehicle manufacturers. The best way to achieve the lightweighting of new energy vehicles is to use carbon fiber materials rationally. Experiments show that replacing the existing steel body with carbon fiber material can effectively reduce the weight by more than 60% and increase the range by more than 20%. China is vigorously promoting the development of new energy vehicles, so the application of carbon fiber materials in the field of new energy vehicles is very broad. In fact, carbon fiber materials in addition to the field of new energy vehicles has broad prospects, in the traditional automotive has a broad application. First of all, the hybrid body structure of carbon fiber body and metal platform can be modular and integrated for the traditional automobile body structure, which can greatly reduce the type of parts, reduce the input of workwear and shorten the development cycle. Second, China is currently implementing the third phase of fuel consumption standards have been fully implemented (the average fuel consumption of enterprises 6.9L / 100 km);
According to China Coatings Online (China Coatings Online ) experts, b the government will severely punish enterprises that do not meet the standards, according to authoritative estimates, Changan Ford 2015 production and sales and fuel consumption, will be subject to a fine of 800 million yuan. At present, it is difficult for Chinese automobile enterprises to achieve engine upgrading in the short term, in order to make the enterprise fuel consumption standards, automotive lightweight forced in the brow section, compared to the complex operating conditions and performance requirements of chassis parts, the application of carbon fiber body is the most effective way to lightweight the body. Because once a car that uses carbon fiber materials heavily reduces its mass by 40-50%, fuel consumption can be saved by 7% for every 10% weight loss in the car structure. If the body weight loss of 20 to 30%, co2 emissions per vehicle per year can be reduced by 0.5T. Carbon fiber does not have the problem of corrosion and rust and is more durable than ordinary metals. AJR Consultants predicts that its global market sales will grow from $16.11 billion in 2011 to $48.7 billion in 2020 due to the widespread use of carbon fiber materials, with a focus on the automotive sector. So, in the future, carbon fiber materials will be "very available" in the automotive sector. All in all, from both performance and environmental point of view, automotive lightweighting has become an inevitable trend, and the use of carbon fiber materials is the only way to automotive lightweighting. As a world-class competitive flag bearer for Chinese enterprises in the field of carbon fiber, the prospects are limitless.
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