[ Editorial Perspective of Plastic Machinery Network
] Speaking of new materials that have been widely used in recent years, carbon fiber can be described as one of the new popular materials. From its reputation as "black gold", it is enough to prove its importance.
We all know about carbon fiber. This is a kind of fiber with high strength and modulus. At present, it is difficult to find a comparable fiber material. In high-tech fields such as aerospace, carbon fiber materials have shown Quite desirable characteristics, and with the improvement of process technology, carbon fiber materials have been expanded to more and more fields.
There are actually many carbon fiber materials around us. For example, in the automotive field, carbon fiber can be used as the material for body parts, bumpers, interior trims, mirror covers, rear wings, machine covers, eyebrows, and corner wraps.
Under the trend of automobile lightweight, automobile weight reduction is a technology field that has been widely concerned. According to observations, the rise and development of this trend is related to these aspects:
· Reduce greenhouse gas emissions and exhaust pollution;
· New energy vehicle endurance issues;
Reduce weight and speed, improve driving experience
· Energy saving and consumption reduction, improve fuel efficiency and save fuel;
· Reduce abrasion of vehicle weight to parts and extend vehicle life.
Carbon fiber has the advantages of light weight and high strength. Carbon fiber automotive parts do not reduce their mechanical strength while reducing their own weight.
"Eye contact" is one of the factors that determine our consumption. In terms of cars, the shape of the vehicle plays a certain role in whether to buy the car. The body shell gives people an intuitive model feel and is also responsible for protecting the safety of other components in the car and the driver. Generally, the car body shell is made of metal materials, such as steel (galvanized sheet steel, low carbon steel plate), aluminum, and so on. With the development of materials science, body shells based on reinforced plastics and carbon fibers have also appeared.
Under the same crash level, the weight of the carbon fiber body is significantly lower than that of the steel body. This will enable vehicles with carbon fiber bodies to have an improved driving experience while maintaining similar safety performance to conventional bodies. In fact, the application of carbon fiber in the automotive field also began with racing cars, which have very high requirements for speed and safety. To make the same shell, the carbon fiber material is only about 1/2 of steel and 2/3 of aluminum. The lighter weight brings higher driving speed, but it can still provide no less than the safety performance of both. The carbon fiber material just meets the requirements. These two requirements.
Important parts for car safety are car bumpers and brake pads. With the discovery of the trend of lightweight vehicles, the metal of automobile bumpers is moving towards carbon fiber composite materials. In the impact test of the same energy, the strength of carbon fiber composite materials makes it less deformed than metal bumpers (but the thickness of materials and deformation The degree is inversely proportional, not the thicker the better); look at the car brake pads, carbon fiber composite brake pads have the advantages of high temperature resistance, fast heat dissipation, high hardness, wear resistance, etc., and its braking is relatively stable It is a new type of brake pad material with good self-lubricity, little noise and no toxic debris.
In terms of comfort, the application of carbon fiber materials in car seats is also becoming a trend. Carbon fiber seat has better fatigue resistance, and its high strength also makes the seat not easy to break and deform even in the face of strong impact, and under normal use, it has a longer service life than metal seats. At present, carbon fiber seats are also introduced in the aviation field, which is mainly used in the manufacture of seat frames, which reduces weight by about 50% compared to traditional metal seats.
However, it is worth noting that the current cost of carbon fiber materials is still a difficult problem in the development of its expanded applications. The problems of low production efficiency, long cycles, and high costs still exist. Enterprises also need to pay a lot of additional costs in R & D and design At present, it is difficult for us to see the widespread use of carbon fiber materials on low-end models. However, with the development of science and technology, China is seeking breakthroughs in various technical fields under the trend of lightweight vehicles, and carbon fiber technology is also prominently listed.
In the coming 2020, there will be several auto-related exhibitions about to be held. Maybe here, you will discover new inspirations about automobile manufacturing, or discover new automobile production technologies from home and abroad. If you are concerned about the automotive industry, then you may wish to take a look at the exhibition information related to automobiles next year: 2020, Which auto shows will meet us?
Conclusion: The lightweight trend of automobiles is in full swing. As a material with ideal performance, carbon fiber materials have broad prospects in this field. Although based on the current technology development, we still face many technical challenges, but with the development of technology , We will finally make a breakthrough, let us look forward to the longer progress of the automotive industry together!
Reference: Jiangsu Bosil Carbon Fiber, Car Coach, Baidu Encyclopedia