What is the rear bumper frame of a car
The rear bumper frame of a car is a metal structural component located at the rear of the vehicle, which supports and protects the rear bumper. Its main functions are to absorb collision energy, enhance the rigidity of the vehicle body and protect the safety of occupants.
Youdaoplaceholder0 Definition and structure
The rear bumper frame of a car (also known as the rear bumper frame or rear guard iron frame) is the core supporting structure of the vehicle's rear bumper system. It is usually made of high-strength steel or aluminum alloy and is installed between the bumper skin and the vehicle body. Its design takes into account both rigidity and energy absorption characteristics, and it is an important part of the passive safety of the vehicle body.
Youdaoplaceholder0 Core function
Youdaoplaceholder0 Collision protection : In the event of a rear collision, the frame absorbs the impact energy through deformation and disperses the impact force to reduce damage to the longitudinal beams of the vehicle body and the passenger compartment.
Youdaoplaceholder0 Support bumper : Provides a stable installation foundation for the plastic bumper outer skin to ensure its stable position.
Youdaoplaceholder0 Accident assessment basis : The degree of damage to the framework is often used as one of the reference indicators for judging the severity of an accident.
Youdaoplaceholder0 Material and design features
Youdaoplaceholder0 Material : The mainstream uses high-strength steel (for example, some models of Hongqi H5 use aluminum alloy), taking into account the requirements of lightweight and impact resistance.
Youdaoplaceholder0 structure : It may include main beams, energy-absorbing boxes and other components. Some models will have additional plastic guard plates to form double protection.
The main functions of the rear bumper frame (rear bumper frame) of a car include
Absorb collision energy
When a vehicle is hit from the rear, the rear bumper frame absorbs and disperses the impact force through its own high strength or aluminum alloy material, reducing the injury to key parts of the vehicle body and occupants inside.
Support the bumper structure
As the supporting foundation of the bumper, the rear bumper frame ensures that the bumper can be firmly installed at the rear of the vehicle, maintaining stability during daily driving.
Assess the severity of the accident
The damage to the frame is often used as one of the bases for determining the level of an accident. Severe damage may affect the overall structural stability of the vehicle and thus be recognized as a major accident.
The main manifestations of faults in the rear bumper frame of a car are abnormal noises, deformation or damage. Common causes include collision damage, component aging and foreign objects getting stuck, etc.
Causes and solutions of abnormal noise
If there is an abnormal noise from the rear bumper frame, it may be caused by damage to the internal support (such as deformation or fracture), improper installation leading to loosening of components, or aging and wear of parts. It is recommended to inspect the bracket structure, replace the damaged parts, reinstall it to ensure tightness, or remove foreign objects.
Deformation judgment method
One can observe the appearance (such as depressions and cracks), sense abnormal rebound by touch, measure dimensional differences with tools (such as abnormal edge curvature), or check the internal repair marks. If it is difficult to make a judgment by oneself, it needs to be tested by professionals.
Maintenance and replacement suggestions
Minor damages (such as local depressions) are given priority for repair, which not only reduces costs but also retains the original factory frame. For severe damage (such as fragmentation or complete replacement), it is recommended to replace the frame with a new one to ensure safety and stability. The maintenance cost of plastic bumpers is relatively low, while special materials such as carbon fiber are more suitable for replacement.
Accident determination criteria
The replacement of the rear bumper frame does not necessarily equate to a "major accident", and it needs to be judged in combination with the degree of damage. If only part of the brackets are replaced and no cutting or welding of the vehicle body is involved, it usually does not fall under a major accident. However, a complete replacement with severe damage might be regarded as a major accident.
If you want to know more, keep reading the other articles on this site!
Please call us if you need such products.
Zhuo Meng Shanghai Auto Co., Ltd. is committed to selling MG&MAXUS auto parts welcome to buy.
