Car bumper is a safety device that absorbs and mitigates external impact and protects the front and rear of the car body. A device that produces cushioning when a car or driver is forced by collision.Plastic bumper is composed of outer plate, cushioning material and cross beam. The outer plate and buffer material are made of plastic, and the cross beam is stamped with cold-rolled sheet with a thickness of about 1.5mm to form a U-shaped groove; The outer plate and buffer material are attached to the cross beam, which is connected with the frame longitudinal beam by screws and can be removed at any time. The plastic used in this plastic bumper is generally made of polyester and polypropylene materials by injection molding.Car bumper is a safety device that absorbs and mitigates external impact and protects the front and rear parts of the car body. Twenty years ago, the front and rear bumpers of cars were mainly made of metal materials. They were stamped into U-shaped channel steel with a thickness of more than 3mm. The surface was chrome plated, riveted or welded with the frame longitudinal beam, and there was a large gap with the body, which seemed to be an additional component. With the development of automobile industry, automobile bumper, as an important safety device, is also on the road of innovation. Today's car front and rear bumpers not only maintain the original protection function, but also pursue harmony and unity with the body shape, and pursue their own lightweight. In order to achieve this goal, the front and rear bumpers of cars are made of plastic, which is called plastic bumper. Plastic bumper is composed of outer plate, cushioning material and cross beam. The outer plate and buffer material are made of plastic, and the cross beam is stamped with cold-rolled sheet with a thickness of about 1.5mm to form a U-shaped groove; The outer plate and buffer material are attached to the cross beam, which is connected with the frame longitudinal beam by screws and can be removed at any time. The plastic used in this plastic bumper is generally made of polyester and polypropylene materials by injection molding. There is also a kind of plastic called polycarbonate system abroad, which infiltrates the alloy composition and adopts the method of alloy injection molding. The processed bumper not only has high-strength rigidity, but also has the advantages of welding, but also has good coating performance, and is used more and more on cars. The plastic bumper has strength, rigidity and decoration. From the perspective of safety, it can play a buffer role in the event of a collision accident and protect the front and rear body. From the perspective of appearance, it can be naturally combined with the body and become an integral whole. It has good decoration and has become an important part to decorate the appearance of the car.
