Common Sense about truck bumper

Guangzhou Offroad introduce you something about the automobile bumper(truck bumper) is a safety device that absorbs external shocks and protects the front and rear parts of the vehicle body. Twenty years ago, the front and rear bumpers of cars were mainly made of metal materials. U-shaped channel steels were stamped out of steel plates with a thickness of 3 mm or more. The surface treatment was chrome-plated and riveted or welded together with the frame rails. The larger gap seems to be an additional component.

The plastic bumper consists of three parts: the outer plate, buffer material and cross beam. The outer plate and the cushioning material are made of plastic, and the cross beam is made of a cold-rolled sheet with a thickness of about 1.5 mm to form a U-shaped groove; the outer plate and the cushioning material are attached to the cross beam, and the cross beam is screwed to the frame rail screw, and can be used at any time Remove it. The plastic used for such a plastic bumper is generally made of two types, a polyester type and a polypropylene type, and is formed by injection molding.

The plastic bumper consists of three parts: the outer plate, buffer material and cross beam. The outer plate and the cushioning material are made of plastic, and the cross beam is made of a cold-rolled sheet with a thickness of about 1.5 mm to form a U-shaped groove; the outer plate and the cushioning material are attached to the cross beam, and the cross beam is screwed to the frame rail screw, and can be used at any time Remove it. The plastic used for such a plastic bumper is generally made of two types, a polyester type and a polypropylene type, and is formed by injection molding.

For example, the bumper of the Peugeot 405 sedan is made of polyester-based material and molded by reaction injection molding. The bumpers of Volkswagen's Audi 100, Golf, Shanghai's Santana, and Tianjin's Xiali are made of polypropylene. The material is made by injection molding. In foreign countries, there is a type of plastic called polycarbonate that infiltrates into the alloy components. The method of alloy injection molding makes the processed bumper not only has high-strength rigidity, but also has the advantage of being weldable and has good coating performance. There are more and more use of cars.