Why are the front and back panels plastic?
After all, the car steel is not borne by the bumper, mainly depends on the body frame structure, so in addition to the design and manufacturing costs, plastic insurance can also play a role in protecting pedestrians.Plastic bumpers are more resilient and better absorb impact than metal because of material. So we can often see the picture of the bicycle hitting the bumper on the Internet, and think carefully, if it changes into a metal bumper, then the tragedy is likely to be pedestrians and bicycles.
The manufacturing cost can be controlled, and the design and production can be easily promotedAutomobile production has been mold, in addition to the body will use high strength materials, many parts will use engineering plastics as much as possible. Automobile front and rear bumpers are typical representatives, and external parts, such as fenders, may also use lightweight materials such as plastics.Plastic bumpers can not only save manufacturing costs, but also lower the level of industrial requirements, relatively easy to produce. So the cost of cars can be controlled, the final product price to consumers will be more reasonable, it must be the corresponding.Of course, apart from the plastic bumpers, some of the top sports cars will use carbon fiber materials. In fact, the purpose is very simple, mainly in order to create lightweight body, thereby enhancing the speed and braking effect of the vehicle.
If there is slight collision or scratched, the plastic bumper has good elasticity, and has a certain shock resistance performance, that is to say if the small knock a small touch case, plastic bumper can automatically rebound automatically repair. Even if the paint is removed, it is better than the concave. After all, the paint is much cheaper than the sheet metal repair.In addition, in some densely populated countries in Europe, car ownership is large, parking spaces are naturally scarce, and the owners often have to keep their cars close to each other. This time the plastic bumper to play a key role, if your car is not crowded into the narrow parking space, you can gently push ahead with low speed or the rear of the vehicle, so you can "push" you need a parking place.Especially in the crowded streets of London parking not pull the handbrake is so It's only human., in order to facilitate others parking. If one day you find someone else parking, scraping to your bumper, don't make a fuss about it. That's what we said before, "the unspoken rules."". Of course, the most representative of those cheap cars, such as Lamborghini, Rolls-Royce, the Veyron bumper can never do it, because they are usually made of carbon fiber material, and body scratch maintenance costs is not low.
For automobile bodies, we all know that metal is easy to rust when combined with water and air, which not only affects the appearance, but also has some potential safety hazard. But despite the bumper everyday driving is easy to bump parts, but the plastic has good corrosion resistance, we don't need to worry about.
