Production process of aluminium alloy specially used for automobile hubs in salt damage regions

A technology for automobile wheels and aluminum alloys, which is applied in the production of special aluminum alloy materials and in the field of aluminum alloys for automobile wheels, can solve problems such as damage to automobile wheels, high humidity, surface corrosion of aluminum alloy wheels, etc. The effect of long life and high wear resistance

Inactive Publication Date: 2014-04-02
秦皇岛开发区美铝合金有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, with the rapid development of the automobile industry, the use of aluminum alloy materials to manufacture automobile wheels has become a common phenomenon. During the use of ordinary A356 aluminum alloy automobile wheels, especially in the salt-damaged areas of North America, the air has high humidity and salt The composition is high, and there are many corrosive ions in the air. Long-term use of A356 aluminum alloy wheels in this environment will cause the surface of the aluminum alloy wheels to be corroded
Becau...

Method used

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Embodiment

[0025] Si6.8~7.4%, Mg0.32~0.40%, Ti0.08~0.13%, Fe≤0.13%, Zn≤0.01%, Ca≤0.03%, Cu≤0.01%, Mn≤0.05%, P≤0.01% , Ni≤0.05%, Cr≤0.05%, Sn≤0.01%, Pb≤0.05%, and the balance is primary aluminum ingot;

[0026] The primary aluminum ingot is an A00 aluminum ingot with Fe≤0.09%;

[0027] Described Si is pure metal silicon;

[0028] Described Mg is pure metallic magnesium;

[0029] Special aluminum alloy for automobile wheel in salt damage area:

[0030] (1) Melting

[0031] Take the composition Si, Ti, Fe, Zn, Ca, Cu, Mn, P, Ni, Cr, Sn, Pb, and primary aluminum ingots, put them into the smelting furnace for smelting according to the weight ratio, when placing, put Place the original aluminum ingot on the bottom layer of the melting furnace, place Si on the upper layer of the original aluminum ingot, and then put other compositions in turn, and then heat the melting furnace. When the temperature reaches 750-820°C, use a stirring device to stir the melt evenly , then add Mg according to ...

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Abstract

A production process of aluminium alloy specially used for automobile hubs in salt damage regions. The aluminium alloy comprises the following components by weight: 6.8-7.4% of Si, 0.32-0.40% of Mg, 0.08-0.13% of Ti, not more than 0.13% of Fe, not more than 0.01% of Zn, not more than 0.03% of Ca, not more than 0.01% of Cu, not more than 0.05% of Mn, not more than 0.01% of P, not more than 0.05% of Ni, not more than 0.05% of Cr, not more than 0.01% of Sn, not more than 0.05% of Pb, and the balance of raw aluminum ingots. The process comprises the following steps: melting the components of Si, Ti, Fe, Zn, Ca, Cu, Mn, P, Ni, Cr, Sn, Pb, and raw aluminum ingots in a melting furnace according to the weight ratios, when the temperature reaches 750-820 DEG C, uniformly stirring the melt, adding Mg according to the weight ratio, uniformly stirring, removing slag to obtain aluminium alloy melt; introducing the aluminium alloy melt into a standing furnace, spraying a refining agent with argon or nitrogen into the aluminium alloy melt for refining; when the refining process completes, removing slag, allowing the aluminium alloy melt to stand in the standing furnace for 30 min; performing casting molding of the aluminium alloy melt after standing by an automatic casting machine, stacking and packaging to obtain the aluminium alloy specially used for automobile hubs in salt damage regions.

Description

technical field [0001] The invention relates to forging special aluminum alloys for automobile wheel hubs in salt-damaged areas, in particular to a production technology for special aluminum alloy materials specially used for Honda brand automobile wheel hubs, and belongs to the technical field of aluminum alloy wheel hub material production. 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. [0003] 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 aestheti...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02C22C1/06
Inventor 毛贻国臧立根甄跃军张厚敏蔡振斌王大龙尚颖薛震杨明娟
Owner 秦皇岛开发区美铝合金有限公司
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