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Lightweight aluminum alloy material and preparation method thereof

A lightweight, aluminum alloy technology, applied in the field of preparation of aluminum alloy lightweight materials, can solve the problems of being unsuitable for automobile load-carrying, and achieve the effect of broadening the application of new fields

Inactive Publication Date: 2013-05-15
龙口市丛林铝材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing aluminum alloys and the methods for preparing such aluminum alloys are not suitable for automobile bearings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Embodiment 1, an aluminum alloy lightweight material, characterized in that the weight percentage of the components is: Mg: 2%, Zn: 4%, Mn: 0.1%, Cr: 0.2%, Cu: 0.4%, Ti: 0.18%, Si≤0.25%, Fe≤0.4%, single impurity≤0.05%, total impurity≤0.15%, the balance is aluminum.

[0015] A method for preparing an aluminum alloy lightweight material, characterized in that it comprises the following steps:

[0016] ①At a temperature of 720-740°C, put each raw material into the flame furnace for melting according to the formula;

[0017] ②At a temperature of at least 720°C, inject common refining agents with argon gas and refine for 10-20 minutes;

[0018] ③After melt refining and removing scum on the surface, sprinkle sodium modifier evenly, then stir it into the melt, and let it stand for 10-20 minutes;

[0019] ④Semi-continuous direct water-cooled casting, casting temperature: 715-730°C, casting speed: 20-40mm / min, cooling water pressure: 0.03-0.06Mpa;

[0020] ⑤ The ingot should ...

specific Embodiment approach 2

[0022] Specific embodiment two, an aluminum alloy lightweight material, characterized in that the weight percentage of the composition is: Mg: 2.2%, Zn: 3.9%, Mn: 0.5%, Cr: 0.3%, Cu: 0.4%, Ti: 0.15%, Si≤0.25%, Fe≤0.4%, single impurity≤0.05%, total impurity≤0.15%, the balance is aluminum.

[0023] A method for preparing an aluminum alloy lightweight material, comprising the steps of:

[0024] ①At a temperature of 720-740°C, put each raw material into the flame furnace for melting according to the formula;

[0025] ②At a temperature of at least 720°C, inject common refining agents with argon gas and refine for 10-20 minutes;

[0026] ③After melt refining and removing scum on the surface, sprinkle sodium modifier evenly, then stir it into the melt, and let it stand for 10-20 minutes;

[0027] ④Semi-continuous direct water-cooled casting, casting temperature: 715-730°C, casting speed: 20-40mm / min, cooling water pressure: 0.03-0.06Mpa;

[0028] ⑤ The ingot should be homogenized ...

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Abstract

The invention relates to a lightweight aluminum alloy material and a preparation method thereof. The lightweight aluminum alloy material comprises the following components by weight percent: 1.9-2.2% of Mg, 3.8-4.3% of Zn, 0.1-0.5% of Mn, 0.1-0.3% of Cr, 0.3-0.7% of Cu, 0.12-0.22% of Ti, less than or equal to 0.25% of Si, less than or equal to 0.4% of Fe, less than or equal to 0.05% of a single impurity, and the balance of aluminum, wherein the total impurities are less than or equal to 0.15%. The preparation method comprises the following steps of: feeding the raw materials into a flame furnace according to a prescription, and smelting; ejecting an ordinary refining agent by using argon, uniformly throwing a sodium alterant, subsequently stirring into the melt, and standing for 10-20minutes; adopting semi-continuous direct water-cold casting; homogenizing a cast ingot; shaping the homogenized cast ingot in an extrusion mode, subsequently carrying out thermal treatment, quenching, drawing, straightening and artificially aging so as to obtain the lightweight aluminum alloy material ultimately. The lightweight aluminum alloy material has the beneficial effects that by optimizing and innovating the alloy components and the method for preparing the alloy, the new application field of the cast aluminum alloy is widened, and therefore the lightweight aluminum alloy material can be used as a lightweight material and applied to automobiles.

Description

technical field [0001] The invention relates to an aluminum alloy lightweight material, and also relates to a preparation method of the aluminum alloy lightweight material. Background technique [0002] Automobile lightweight has always been a research issue that major automobile manufacturers are committed to. Aluminum has attracted more and more attention due to its light weight and other advantages. It is a direction worthy of research to seek breakthroughs in the field of lightweight materials by using aluminum and adding alloys to it. However, the existing aluminum alloys and the method for preparing such aluminum alloys are not very suitable for the bearing of automobiles. Contents of the invention [0003] The present invention aims at the deficiencies of the above-mentioned prior art, and provides an aluminum alloy lightweight material and a preparation method thereof. Suitable for car carrying. [0004] The technical solution of the present invention to solve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/02C22F1/053
Inventor 张培良高安江李瑞清王惠勇王明坤戴维臣
Owner 龙口市丛林铝材有限公司
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