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Can anti-collision beam (auto parts) really guarantee the safety of people inside the car?
2020-01-13 09:49:55

Automobile anti-collision beam is by no means the fundamental factor to ensure the safety of the people in the car, but it is meaningful to the safety. Its role is reflected in the low-speed collision, and in the high-speed accident, automobile parts anti-collision beam is powerless. Compared with the body longitudinal beam and stiffener, the strength of the crash beam is not worth mentioning. What really saves your life at this time is to try to keep the cockpit intact. Therefore, we should treat the anti-collision beam rationally.

The anti-collision beam is a device used to reduce the vibration force of the vehicle. Its two ends are connected with a low-speed energy absorbing box with low yield strength, and then connected to the longitudinal beam of the vehicle body in the form of bolts. The low-speed energy absorbing box can effectively absorb the collision energy when the vehicle has a low-speed collision, and minimize the damage of the impact force on the body longitudinal beam, so as to play a protective role for the vehicle.

The anti-collision steel beam specifically includes the front and rear anti-collision beams and the door anti-collision steel beam.

The significance of the front and rear crash beams is that the vehicle bears the impact force at one time. An important concept in the passive safety of the body is to bear the force of the whole body. To put it bluntly, a certain position of the car body is impacted. If only this part can bear the force, the protection effect will be very poor. If the whole skeleton structure can bear the force at a certain point, the strength of the force at a point can be greatly reduced, especially the front and rear anti-collision steel beams play an obvious role here.


Automobile stamping parts


The two ends of the anti-collision beam are connected with the low-speed energy absorbing box with low yield strength, and then connected to the longitudinal beam of the vehicle body by means of bolts. The low-speed energy absorbing box can effectively absorb the collision energy when the vehicle collides at low speed, reduce the damage of the impact force to the body longitudinal beam as much as possible, which can reduce the maintenance cost, and the bolt connection method can more easily replace the collision beam.

In the high-speed offset impact, the impact beam can effectively transfer the impact force from the left side (or right side) to the right side (or left side), and let the whole vehicle absorb the impact energy as much as possible. In the case of low-speed collision (generally less than 15km / h), the collision beam can avoid the damage to the front and rear longitudinal beams of the body caused by the impact force and reduce the maintenance cost.

I'm afraid that those who are prone to injury will still suffer from side impact, because there is not much gap between the driver's body and the door, unlike the front impact, at least there is a certain space for buffer in front of the driver, and there is almost no room for buffer when the side is impacted, which is also an important part of the anti-collision steel beam. The quality of the anti-collision steel beam of the door has become the key active safety protection, It can be said that the stronger the structure and strength of these important anti-collision steel beams, the better the protection for drivers and the higher the safety factor for drivers and passengers.

Anti collision beam structure

The structure of the anti-collision beam should ensure that the low-speed energy absorbing box can effectively absorb the energy during the low-speed impact by collapsing. The anti-collision beam is connected to the vehicle body by bolts, which is convenient for disassembly and replacement. Now many models of anti-collision beams are equipped with a layer of foam buffer, its main role is in the following 4km/h collision, the external plastic bumper to play a support, to alleviate the impact of collision, reduce the impact of plastic bumper damage, reduce maintenance costs.


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