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The anti-collision steel beam is a U-shaped groove punched from cold-rolled steel plates, connected to the longitudinal beam of the vehicle frame. As the first barrier for passive safety of the car, the anti-collision steel beam is an important safety device that absorbs and mitigates external impact forces and protects the front and rear parts of the vehicle.
Due to the fact that the rear anti-collision steel beam is hidden inside the rear bumper, many car owners are not aware that their cars do not have rear anti-collision steel beams installed, nor are they clear about the purpose of the anti-collision steel beam. Some car owners who understand the role of rear anti-collision steel beams have also put in a lot of effort to install them. As far as we know, a car owner once spent an additional 3000 yuan to install rear anti-collision steel beams. And the bumper that is often talked about is just the outer plastic part. Many times it only serves a decorative purpose. The anti-collision steel beam inside the bumper plays a role in safety protection. According to normal thinking, the anti-collision beam should definitely be equipped with two pieces, the front one is effective in rear end collisions, and the rear one is effective in rear end collisions. When it comes to the absence of a rear bumper, it actually means that the car does not have a rear anti-collision steel beam. A car without rear anti-collision steel beams does not function as a bumper. A master who has been engaged in car maintenance for many years revealed to us that not all cars have anti-collision steel beams.
Some car manufacturers omit the rear bumper on economy sedans priced at tens of thousands of yuan mainly to save costs and pursue large profits. Once a rear end collision occurs, due to the lack of protection from rear collision steel beams, the rear of the car will deform excessively, and the impact force will directly damage the rear of the car, causing casualties to rear passengers.
