Aluminum alloy section baggage holder for automobile

Abstract

The invention relates to an aluminum alloy section baggage holder for an automobile. The aluminum alloy section baggage holder for the automobile comprises a base material and a base material coveringlayer. The base material comprises the following elements in percentage by mass: 1% to 2% of chromium; 1% to 3% of copper; 2% to 3% of manganese; 0.05% 0.15% of zirconium; 0.03% to 0.09% of neodymium; 0.04% to 0.08% of vanadium; 0.5% to 1.0% of germanium; 0.5% to 0.9% of silicon boride fibers; 0.4% to 0.9% of silicon nitride fibers; 0.3% to 0.7% of silicon carbide fibers; 0.1% to 0.3% of nickel;0.05% to 0.08% of titanium; 1.2% to 2.5% of iron; 0.03% to 0.05% of palladium; 0.01% to 0.03% of lanthanum; 0.1% to 0.5% of cobalt; 1.5% to 3.5% of carbon fibers; 0.02% to 0.05% of graphite whiskers;and the balance of aluminum. The ultrahigh strength of the luggage holder is ensured; and the mechanical property of the luggage holder is improved.

Description

technical field [0001] The invention relates to the technical field of automobile luggage rack design, in particular to an automobile luggage rack made of aluminum alloy profiles. Background technique [0002] Aluminum is an extremely abundant metal element on the earth, and has high specific strength and elastic modulus, high electrical conductivity and high thermal conductivity, and excellent corrosion resistance. In 1921, the world's aluminum production was 203,000 tons, in 1988 it reached 17.8 million tons, and in 2003 it reached 24 million tons. The scale of my country's aluminum industry ranks third in the world, with an annual production capacity of 4 million tons of electrolytic aluminum. Aluminum has become the second largest metal material after steel in my country, and it plays an increasingly important role in modern national life. [0003] For automobiles, environmental protection, safety, and light weight have become the top priorities. Whether it is from the...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention aims to provide a luggage rack for automobiles of aluminum alloy profiles, by adding high-strength, high-hardness, corrosion-resistant metals and silicon carbide, silicon nitride, silicon boride and carbon fibers, the purpose is to solve the problem. Defects of insufficient strength, rigidity, hardness and wear resistance and corrosion resistance of luggage racks for automobiles