High-heat-dissipation aluminum base composite material for automotive engine

Abstract

The invention discloses a high-heat-dissipation aluminum base composite material for an automotive engine. The high-heat-dissipation aluminum base composite material for the automotive engine is prepared from the following raw materials in parts by weight: 95 to 98 parts of aluminum, 2 to 3 parts of glass fiber, 0.3 to 0.5 part of copper, 0.1 to 0.2 part of nickel, 1 to 1.2 parts of zinc, 0.8 to 1 part of zirconium, 0.2 to 0.3 part of molybdenum, 1 to 1.4 parts of iron, 0.06 to 0.1 part of hexadecyl trimethyl ammonium bromide, 3 to 5 parts of graphene oxide, 5 to 8 parts of zirconium hydride, 0.86 to 1 part of hexachloroethane, 1.1 to 1.5 parts of quickened lime, 0.2 to 0.4 part of potassium sulfide, 0.25 to 0.3 part of polyvinylpyrrolidone, 0.3 to 0.4 part of ferrous sulfate, 1.1 to 1.6 parts of nano aluminum nitride, not more than 0.01 part of impurity and a proper volume of deionized water. The aluminum material provided by the invention is good in high strength, abrasion-resisting performance and heat dissipation performance, has no resilience after being shaped, and is stable in size; and a manufacturing process accords with green and environment-friendly processesing, can meet the demands of the automotive engine, and moreover, can be used for large scale production.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to an aluminum-based composite material for high heat dissipation automobile engines. 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 product...

AI Technical Summary

Problems solved by technology

In the article "Preparation and Mechanical Properties of Graphene Reinforced Aluminum Matrix Composite Materials", Gao Xin used Hummers to prepare graphene oxide with a large amount of negative charges, and then treated the aluminum powder with a cationic surfactant to make the surface positively charged, and Graphene is evenly adsorbed on the surface of aluminum powder by electrostatic self-assembly, and finally the aluminum matrix composite is prepared by hot pressing and sintering. However, the amount of surfactant and the amount of graphene added will affect the sintering performance and affect the material Hardness, tensile strength, mechanical properties, etc. are greatly affected, and the stability of material quality is poor