Composite material for automobile parts

Abstract

The invention discloses a composite material for automobile parts. The composite material is composed of, by weight, 92-95% of aluminum, 0.05-0.07% of actinium, 0.2-0.3% of manganese, 2-2.5% of iron, 0.1-0.2% of boron, 0.2-0.25% of carbon, 1.5-2% of molybdenum disulfide, 0.3-0.35% of magnesium, 0.05-0.1% of hexadecyl trimethyl ammonium bromide, 4-5% of oxidized graphene, 6-10% of zirconium hydride, 0.5-1% of hexachloroethane, 0.35-0.55% of calcium silicide, 0.8-1% of montmorillonoid, 0.2-0.4% of Arabic gum, 0.3-0.5% of magnesium oxide, 2-2.5% of activated aluminum oxide, 0-0.01% of impurities and an appropriate amount of deionized water. Aluminum products made of the composite material have the advantages that the strength, the hardness and the high-temperature heat stability are high. In addition, raw materials are easy to obtain, the processing cost is low, the preparation technology is simple, parameters are easy to control, the production process is safe and friendly to environment, and therefore the composite material is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a composite material used for auto parts. Background technique [0002] Aluminum matrix composites have high specific strength, specific stiffness, and specific modulus of elasticity, as well as good wear resistance and high temperature resistance, so they have received extensive attention. The commonly used techniques for the preparation of particle-reinforced aluminum matrix composites include powder metallurgy and casting. However, the process equipment of the powder metallurgy method is complex and the cost is high, and it is not easy to prepare large-volume and complex-shaped parts. Moreover, there are dangers such as powder combustion and explosion during the production process. The casting method has simple process and convenient operation, can produce large-volume composite materials, has less equipment investment, low production cost, and is suitable for large-scale...

AI Technical Summary

Problems solved by technology

Graphene oxide containing a large amount of negative charges was prepared by Hummers, and then the aluminum powder was treated with a cationic surfactant to make the surface positively charged, and the graphene was uniformly adsorbed on the surface of the aluminum powder by electrostatic self-assembly, and finally heated Aluminum-based composite materials are prepared by pressing and sintering, but the amount of surfactant and graphene added will affect the sintering performance, which has a great impact on the hardness, tensile strength, and mechanical properties of the material, and the quality of the material is poor.