What do you call the back bar foam?
In the automotive field, the material inside the front bumper is not foam, but a negative composite polyethylene material, also known as foam buffer layer.
Its main function is to play a buffer role in low-speed collisions. The low-speed buffer layer is usually made of polyethylene foam, non-metallic resin or engineering plastic. Its role is to reduce the damage suffered by the vehicle in low-speed collisions, and even in some minor collisions can completely offset the damage suffered by the vehicle.
The plastic bumper is composed of three parts, such as the outer plate, the buffer material and the beam. The outer plate and buffer material are made of plastic, and the beam is made of cold-rolled sheet with a thickness of about 1.5 mm and formed into a U-shaped groove; The outer plate and buffer material are attached to the beam, which is attached to the frame longitudinal beam screws and can be removed at any time. The plastic used in this plastic bumper is generally made of two materials, polyester and polypropylene, and is made by injection molding.
Does it matter if the car anti-collision foam is removed
The main function of automobile anti-collision foam is to play a cushioning role, if removed will affect the safety performance of automobiles. Collision foam is usually located on the inside of the front and rear bumpers of cars to reduce the injury of vehicles and pedestrians in a collision.
When the foam is removed, the cushioning effect of the car in the event of a collision is reduced, increasing the risk of injury to both drivers and pedestrians. In addition, crash-resistant foam also helps reduce repair costs, as removal can increase damage to bumpers and other components, leading to higher repair costs.
Therefore, it is recommended not to remove the anti-collision foam easily. If there is indeed a special need for demolition, it should be carefully considered and professional advice consulted.
The density of automotive crash-resistant foam depends on the type of material used. For example, the density of flexible polystyrene foam board (EPS foam board) is 6kg/m³, while the density of EVA foam board can reach 55g/cm³, which indicates that the density of automotive anti-collision foam is very wide, depending on the design needs and material selection.
Explodable polystyrene foam board (EPS) : This material has a relatively low density of 6kg/m³ and is commonly used to provide some cushioning and crash protection. EPS foam board is widely used in furniture, lighting, glass transportation and other fields to ensure the safety of items in the transportation process 1.
EVA foam board : with a higher density of up to 55g/cm³, this material is usually used in applications requiring higher shock and seismic resistance. EVA foam board with its excellent cushioning performance, is widely used in automotive parts, packaging materials and other fields to ensure effective protection in a collision 2.
To sum up, the density of automotive anti-collision foam can be selected according to the specific needs of different materials and densities to ensure appropriate protection in a collision.
The density of automotive crash-resistant foam depends on the type of material used. For example, the density of flexible polystyrene foam board (EPS foam board) is 6kg/m³, while the density of EVA foam board can reach 55g/cm³, which indicates that the density of automotive anti-collision foam is very wide, depending on the design needs and material selection.
Explodable polystyrene foam board (EPS) : This material has a relatively low density of 6kg/m³ and is commonly used to provide some cushioning and crash protection. EPS foam board is widely used in furniture, lighting, glass transportation and other fields to ensure the safety of items in the transportation process 1.
EVA foam board : with a higher density of up to 55g/cm³, this material is usually used in applications requiring higher shock and seismic resistance. EVA foam board with its excellent cushioning performance, is widely used in automotive parts, packaging materials and other fields to ensure effective protection in a collision 2.
To sum up, the density of automotive anti-collision foam can be selected according to the specific needs of different materials and densities to ensure appropriate protection in a collision.
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