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Aluminum alloy wheel heat treatment process

An aluminum alloy and wheel technology, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve the problem of not meeting the growing needs of high-quality wheel production, low elongation and impact toughness, low hardness and tensile strength, etc. problems, to achieve the effect of improving plasticity and toughness, improving impact performance, and improving comprehensive performance

Inactive Publication Date: 2013-02-06
DARE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solution treatment + complete artificial aging, to obtain the maximum hardness and the highest tensile strength, but the elongation and impact toughness of the product are low; solution treatment + natural aging, to obtain higher elongation and impact toughness, but Product hardness and tensile strength are low
The current heat treatment process can no longer meet the growing needs of high-quality wheel production

Method used

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  • Aluminum alloy wheel heat treatment process

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Embodiment Construction

[0011] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0012] see figure 1 , figure 1 It is a flowchart of a preferred embodiment of the aluminum alloy wheel heat treatment process of the present invention. The aluminum alloy wheel heat treatment process is carried out in special heat treatment equipment, including the following steps: feeding-into the furnace-solution treatment-out of the furnace-quenching-primary aging treatment-into the furnace-secondary aging treatment-out of the furnace.

[0013] The aluminum alloy wheel in the heat treatment process of the aluminum alloy wheel of the present invention is an A356.2 aluminum alloy wheel. The aluminum alloy wheel heat treatment process adopts th...

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Abstract

The invention discloses an aluminum alloy wheel heat treatment process comprising the steps of: loading, furnace feeding, solid solution treatment, discharging, quenching, primary aging treatment, feeding, secondary aging treatment, and discharging. During the solid solution treatment, a solid solution temperature is 540-550 DEG C, and a solid solution temperature maintenance time is 3.5-4.5h. During the primary aging treatment, the material is kept under room temperature for 24h. During the secondary aging treatment, the aging temperature is 115-125 DEG C, and an aging temperature maintenance time is 2.5-3.5h. With the aluminum alloy wheel heat treatment process provided by the invention, product comprehensive performance can be improved. On a basis that product hardness and tensile strength are ensured, product plasticity and toughness are substantially improved. Especially, impact toughness of the product is improved. With the process, impact strengths of thin spokes and wheels requiring lightweights can be greatly improved, such that requirements of high-requirement automotive main engine factories can be satisfied.

Description

technical field [0001] The invention relates to a metal heat treatment process, in particular to an A356.2 aluminum alloy wheel heat treatment process. Background technique [0002] As energy prices continue to rise, energy conservation, safety, and environmental protection have become the main direction and goals of modern automobile development, and automobile lightweight has become the most effective way. Automobile aluminum alloy wheels are important safety components in vehicle driving, requiring high strength, rotational bending performance, excellent impact toughness and good fatigue resistance, so there are high requirements for the properties of the materials produced. At present, the application of A356.2 aluminum alloy wheels is quite common no matter at home or abroad. [0003] In the existing A356.2 aluminum alloy wheel production process, there are two aging processes: solution treatment + complete artificial aging, that is, T6 heat treatment, and solution tre...

Claims

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Application Information

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IPC IPC(8): C22F1/04C21D9/34
Inventor 邹毓文何芳郝生飞卞锦俊裔国宇
Owner DARE TECH
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