Plastic Auto bumper Injection Mould - Hongmei Mould
Auto bumper molds are mainly divided into two categories: front bumper molds and rear bumper molds.
With the continuous development of the automobile industry, car bumpers, as an important safety device, are also moving forward on the road of innovation. Today's automobile front and rear bumpers not only maintain the most basic protection function, but also in pursuit of harmony and unity with the body shape and its own lightweight. In order to achieve this goal, the current front and rear bumpers are commonly made of plastic materials, which are often called plastic bumpers.
Material and structure of auto bumper:
Typically, the material used for automotive bumpers is a combination of PP and EPDM-T20, with PP serving as the base material for the bumper shell and EPDM effectively enhancing the elasticity of the bumper. The T20 stands for the 20% talc added to the material, which is designed to enhance the stiffness of the bumper. The composite shows excellent stiffness, outstanding impact resistance, stable dimensional retention, good solvent resistance, and excellent coating adaptability.
For the braces, the two side braces are usually made of PP66+GF30%, a material that exhibits good toughness and hard surface properties. In addition, the main function of the lower support shield is to protect pedestrians, supporting and protecting the lower legs in the event of a collision, as well as providing a certain aesthetic effect.
These materials are generally recyclable and environmentally friendly, helping to reduce environmental pollution. The construction of the bumper system mainly consists of shape, wall thickness, release angle, reinforcement, support surface, rounded corners and holes.
Bumper masks and beams for automobiles are large, thin-walled injection-molded parts, with the mask being an appearance component. The requirements for the materials are mainly to have excellent fluidity and at the same time to ensure high precision and UV stability of the parts. Typically, modified polypropylene (PP+EPDM) is used for these parts.
The main role of car bumpers：
1. Protection - The bumper is designed to absorb a certain amount of impact energy in the event of a longitudinal or angular collision, thus effectively maintaining the integrity of the body, the vehicle's lighting fixtures, cooling system, and engine cover, trunk lid and other components. It also has a pedestrian protection function, with a cushioning block under the bumper, which more effectively reduces the degree of injury to the lower legs of pedestrians in a collision.
2. Functionality - The bumper is designed with lamps, license plates and related markings on some models, which provide enough space and installation conditions for these additional equipment.
3. Ventilation - the bumper also provides the necessary ventilation channels for the vehicle's cooling system, helping to maintain good heat dissipation.
4. Decorative function - its exterior design is closely integrated with the vehicle's body contours, presenting a harmonious decorative effect.
5. Enhanced aerodynamic performance - the careful design of the front bumper significantly improves the aerodynamic characteristics of the vehicle, reducing the coefficient of wind resistance and coefficient of lift at the front.
For other molds you might like, click on the link https://hongmeimould.en.made-in-china.com/ ！
If you want to make a good quality coffee maker/ juicer mixer mould and find mould makers in china, Hongmei mould will be your best choice! You will not only get good price,but also the best service!Welcome contact us with any questions on injection moulds or anything you’d like to know!