High-strength automobile hub and preparation method thereof

Abstract

The invention discloses a high-strength automobile hub and a preparation method thereof. The automobile hub is made of an alloy. The alloy comprises, by mass percent, 3%-12% of silicon, 0.1%-5% of carbon, 0.01%-3% of copper, 1%-10% of manganese, 1.2% or less of calcium, 0.1%-8% of chrome, 3.5% or less of iron, 5%-18% of zinc oxide, 0.001%-0.5% of phosphorus, 0.01%-1% of nickel, 0.001%-0.3% of molybdenum, 0.005%-0.8% of tungsten, 0.0001%-0.5% of lead, 0.001%-0.3% of strontium, 1%-15% of magnesium borate, 0.2%-10% of potassium titanate and the balance aluminum. During smelting, the components are taken and, by weight percent, put into a smelting furnace to be subjected to smelting and deslagging, and then by means of refining, standing, pouring, pressurizing, cooling and demolding, the automobile hub is obtained. According to the high-strength automobile hub and the preparation method thereof, the components are scientific and reasonable, the formula is simple, the preparation process iseasy to implement, and the obtained hub is high in strength, resistant to corrosion, impact and abrasion, good in heat resistance, long in service life and good in casting performance. The preparation process is simple and easy to operate, the energy consumption is low, the production efficiency is high, and the high-strength automobile hub is suitable for being produced on a large scale.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a high-strength auto wheel hub and a preparation method thereof. Background technique [0002] The wheel hub is an important part of the car, and its quality directly affects the performance and aesthetics of the car. Due to the light weight, high strength and good toughness of aluminum alloy, many automobile wheels at home and abroad are made of aluminum alloy materials. The production process of automobile wheels requires very strict requirements on the performance of the wheel materials. The produced wheels not only require high strength, corrosion resistance, excellent impact toughness, fatigue resistance and good wear resistance, but also Must have a good finish to enhance the aesthetics of the car hub. Aluminum alloy wheels have the advantages of light weight, energy saving, low price, high surface quality, good heat dissipation, easy molding, good vibration damping pe...

AI Technical Summary

Problems solved by technology

However, with the rapid development of the automobile industry, the performance requirements for aluminum alloy wheels are also continuously increasing. There are still some problems in the existing aluminum alloy wheels, such as insufficient strength, heavy weight, poor processing performance, poor heat dissipation, and deterioration treatment. The effect is limited, the quality of castings is unstable, etc. Therefore, it is necessary to further improve the comprehensive performance of aluminum alloys for wheel hubs