Composite material for gear disk and preparation method of composite material for gear disk

Abstract

The invention discloses a composite material for a gear disk and a preparation method of the composite material for the gear disk. The composite material is prepared from, by weight, 95-98 parts of aluminum, 0.1-0.14 part of bismuth, 0.03-0.05 part of niobium, 0.21-0.23 part of molybdenum, 0.2-0.23 part of carbon, 1.8-2.5 parts of iron, 0.25-0.34 part of silicon, 0.06-0.1 part of cetyl trimethyl ammonium bromide, 3-5 parts of graphene oxide, 5-8 parts of zirconium hydride, 0.8-1 part of hexachloroethane, 0.2-0.3 part of silica sand, 0.25-0.3 part of carboxymethyl cellulose, 0.3-0.35 part of calcium fluoride, 1.2-2 parts of titanium carbide, smaller than or equal to 0.01 part of impurities and a proper amount of deionized water. The composite material has good strength and high elongation percentage, the crack resistance is good, the fatigue resistance is high, the composite material is long in service life when used for the automobile gear disk, the maintaining frequency is reduced, and cost is reduced.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a composite material for a gear disc and a preparation method thereof. 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, an...

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