Front exterior trim panel.
The front exterior decorative plate is an exterior decorative plate at the lower part of the automobile door. It is attached to the sheet metal through fasteners. The edge of the exterior decorative plate is attached to the sheet metal and secured by double-sided adhesive bonding. This part is located on the outside of the door, mainly plays a decorative and protective role, but also a part of the appearance of the vehicle, affecting the exterior design and style of the vehicle. In addition, the door trim panel (including the front door trim panel) plays an important role in the automobile design, they not only play a decorative and shielding role, beautify the interior space, improve the beauty and comfort of the vehicle, but also have the actual protection function, protect the internal structure of the door from the external environment and daily use .
The car exterior also includes other important components, such as the front bumper, rear bumper, body skirt, outer circumference, etc., which together constitute the appearance of the vehicle, not only providing structural support, but also affecting the streamlined design and safety of the vehicle. As a part of it, the front door trim plate, together with these components, jointly shapes the overall image of the vehicle, showing the design philosophy and craft level of the vehicle .
B-pillar exterior trim plate, also known as B-pillar door trim plate
1, most plastics are light, chemically stable, and will not rust.
2, good impact resistance.
3, with good transparency and wear resistance.
4, good insulation, low thermal conductivity.
5, general formability, good coloring, low processing cost.
6, most of the plastic heat resistance is poor, thermal expansion rate is large, easy to burn.
7, dimensional stability is poor, easy to deformation.
8. Most plastics have poor low temperature resistance and become brittle at low temperatures.
Plastics can be divided into two categories of thermosetting and thermal plasticity, the former cannot be reshaped and used, the latter can be repeatedly produced.
There are basically two types of plastic polymer structure:
The first is linear structure, and the polymer compound with this structure is called linear polymer compound;
The second is the body type structure, and the polymer combination with this structure is called the body type polymer compound.
Some polymers with branch chains, called branched-chain polymers, belong to the linear structure. Although some polymers have cross-links between molecules, they are less cross-linked, which is called a network structure and belongs to a body type structure.
Two different structures, showing two opposite properties. Linear structure (including branched chain structure) polymer due to the existence of independent molecules, it has elasticity, plasticity, can be dissolved in solvents, heating can melt, hardness and brittleness of the characteristics of small.
How to solve the abnormal sound of the car door panel?
It is normal for the door panel to ring abnormally after the car has been used for a long time. Often driving on some bumpy roads, the interior panel of the car will appear some open, which will produce some abnormal sound. The interior panels of the car are fixed with clips, and the interior panels will become loose when driving on the bumpy road, so that the interior panels will appear abnormal. When the interior panel of the vehicle needs to be removed for maintenance, be sure not to break the clip. If the clip is broken, then the interior plate will not be fixed properly, and there will be an abnormal sound. The solution to the abnormal noise of the door panel is as follows:
1. Check whether the clip is loose
First, we need to check whether the clamp on the door panel is loose. If the clip is loose, it will cause abnormal sound in the interior panel. We can use a screwdriver or similar tool to secure the clip in place to ensure that the trim board does not come loose. If the clip is damaged, replace it with a new clip.
2. Replace the interior panel
If there is no problem with the clip, then there may be a problem with the interior plate itself. At this point, you need to replace the interior panel. When replacing the interior panel, remove the original interior panel and install the new one. It should be noted that the clip must be fixed during installation to ensure that the interior panel will not be loose.
In short, the abnormal noise of the door panel is a common problem, but it is also simple to solve. Just check if the clip is loose, or replace the interior panel. If you encounter the problem of abnormal ringing of the door panel, do not panic, you can solve it yourself.
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