Coiling method
The first is face. When you decide a brand or a model, the first thing is of course the appearance. The technology and level of baking paint directly affect the first impression of this car. Paint materials include primer, topcoat and varnish.
Different brands of coatings directly affect the final effect. Of course, we can't know the specific paint brand when choosing a car, but we can judge the quality of the paint according to its effect. Good baking paint, transparent and bright surface, deep and natural color, should not have uneven color, color difference and large areas of pits or bumps.
The decal process is smooth and the paint covers evenly. In the sun, the paint surface is bright and colorful, and in the shade, the paint surface is rich in color and texture. If you find these descriptions difficult to understand, the easiest way is to look at more stores and compare many cars of the same color, and the feeling will come out soon.
The most important thing is to consider the anti-ultraviolet ability of coatings. Many car paints are not added with anti-ultraviolet agents. After a long period of sun exposure, cars will gradually fade, especially white paint, which is more likely to fade or change color. Because this kind of problem can't be judged immediately, we can observe whether the car in the garage has faded and make a basic evaluation.
Followed by the lining. The whole vehicle structure is very simple. The basic units are frame, plastic parts, shock absorber, battery, controller and motor. The quality of the frame is particularly critical. Many users don't care much about the quality of the frame, because this part is difficult to observe.
The quality of the frame directly determines the safety performance of the whole vehicle. Here are several ways to verify the framework. First, observe the welding level of the frame inside the plastic parts of the vehicle. If there is virtual welding or desoldering, the quality of the frame is not ideal.
Refer to the above content: Baidu Encyclopedia-Electric Vehicle