An Overview of the Functions and Characteristics of Car Side Door Impact Beam

When we look at the oem auto parts of a car, we may notice a protruding "small iron plate" under the door. For a relatively sophisticated vehicle like a car, every component has its role. This seemingly inconspicuous little part is actually of great use at critical moments.This article will reveal to you the true purpose of this "little iron plate" and let you understand the reasons behind this design.

Protect the vehicle bottom from Damage from the Door Impact Beam

The "small iron plate" under the door is actually a metal protective plate whose main function is to protect the bottom of the vehicle from damage. During driving, the vehicle may encounter various road conditions, such as stones, potholes, etc. These obstacles may cause scratches or impacts to the bottom of the vehicle. With this metal protection plate, the damage to the bottom of the vehicle caused by these external factors can be effectively reduced and the service life of the vehicle can be extended.

Prevent Water Corrosion of Side Door Impact Beam

The position under the door is relatively low and water can accumulate easily. Long-term water accumulation will cause corrosion at the bottom of the vehicle, affecting its safety and service life. The metal protective plate can effectively remove accumulated water and reduce the contact time between accumulated water and the bottom of the car, thereby avoiding corrosion problems.

Improve Body Structure Strength of Side Door Impact Beam

During the design and manufacturing process, metal protective panels undergo a series of strengthening treatments to give them high structural strength. Such a design can improve the overall rigidity and torsion resistance of the vehicle body to a certain extent, making the vehicle more stable during driving and reducing the risk of vehicle body deformation.

Auxiliary Door Closing of Side Door Impact Beam

In some models, the metal protective panel under the door also serves to assist in closing the door. When the door is closed, the metal protective plate can provide a stable support point to help the door close better and reduce the noise caused by the door shaking.

Door Anti-Collision Beam

The "small iron plate" protruding from the bottom of the door is actually the side impact door beam, which is one of the indispensable auto car parts for protecting driving safety. The following is a detailed introduction about it:

Function: The door anti-collision beam can effectively absorb the impact energy during a vehicle collision and disperse it into the body structure, thereby reducing damage to the occupants. At the same time, it can also prevent the door outer panel from being directly impacted and protect the integrity of the body structure.

Material: Door anti-collision beams are usually made of high-strength steel, which has good tensile strength and impact resistance.

Installation location: The door anti-collision beam is usually installed inside the door and is closely connected with the body structure. One end of it is connected to the inner door panel, and the other end is connected to structural components such as body side panels or cross beams.

Advantages and Disadvantages: The advantage of the door anti-collision beam is that it can effectively improve vehicle safety and protect the safety of the occupants. However, its disadvantage is that it increases body weight and manufacturing costs.

Classification: Door anti-collision beams can be divided into two types: horizontal beam type and vertical beam type, according to their structure. Cross-beam anti-collision beams are generally welded by high-strength steel plates, which have greater tensile strength and impact resistance; vertical beam-type anti-collision beams are welded by multiple vertical steel pipes or profiles, which have better Side impact resistance.

In short, the door anti-collision beam is one of the indispensable safety components in modern cars, which can effectively improve vehicle safety and protect the safety of the occupants.

CBIES-A Professional Auto Body Parts Supplier

Vehicle accessories play a vital role in the performance and driving safety of the vehicle. Only by purchasing from trustworthy manufacturers can quality and precision be guaranteed.Hebei CBIES Automotive parts co., ltd is a leading manufacturer of automotive parts in China, With many years of industry experience and excellent reputation, we are able to be your reliable auto body parts supplier. Contact us now to get more information.