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An aluminum alloy profile for producing a high-strength ultra-light all-aluminum vehicle frame and a preparation method thereof

An aluminum alloy profile, ultra-light technology, applied in the field of aluminum alloy for automobiles, can solve the problems of poor impact resistance of materials, poor welding quality, unsatisfactory surface quality of aluminum alloy profiles, etc., to reduce wall thickness, improve surface quality, The effect of enhancing weld quality and weld seam quality

Active Publication Date: 2021-07-27
WUJIANG CITY XINSHEN ALUMINUM TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the actual production of 6061 aluminum alloy, there are often problems such as unsatisfactory surface quality of aluminum alloy profiles, poor welding quality and poor impact resistance of materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] An aluminum alloy profile for producing high-strength ultra-light all-aluminum vehicle frames, the aluminum alloy profile includes the following components in weight percentage: Si 0.65%, Fe 0.17%, Cu 0.17%, Mn 0.08%, Mg 0.85%, Cr 0.06%, B 0.03%, Mo0.015%, Zn 0.05%, Ti 0.05%, the balance is aluminum and unavoidable impurities; the aluminum alloy profile is prepared by the following method:

[0043] (1) Melting: extraction of aluminum-silicon master alloy, aluminum-iron master alloy, aluminum-copper master alloy, aluminum-manganese master alloy, aluminum-magnesium master alloy, aluminum-chromium master alloy, aluminum-molybdenum master alloy, aluminum-zinc master alloy and aluminum-titanium master alloy , put into the furnace for smelting, the temperature is 730~750°C, the time is 4~5h, then add magnesium ingots into the smelting furnace, stir, continue smelting, the time is 25~30min, and then remove the slag;

[0044] (2) Refining: Adjust the temperature of the smelting...

Embodiment 2

[0049] An aluminum alloy profile for producing a high-strength ultra-light all-aluminum vehicle frame. The difference from Example 1 is that the aluminum alloy component content is different. The aluminum alloy profile includes the following components in weight percentage: Si 0.67%, Si 0.67%, Fe 0.19%, Cu0.19%, Mn 0.09%, Mg 0.87%, Cr 0.08%, B 0.03%, Mo 0.018%, Zn 0.04%, Ti 0.04%, the balance is aluminum and unavoidable impurities; the aluminum alloy The preparation method of the profile is the same as in Example 1.

Embodiment 3

[0051] An aluminum alloy profile for producing a high-strength ultra-light all-aluminum vehicle frame. The difference from Example 1 is that the content of the aluminum alloy components is different. The aluminum alloy profile includes the following components in weight percentage: Si 0.70%, Si 0.70%, Fe 0.20%, Cu0.20%, Mn 0.10%, Mg 0.90%, Cr 0.09%, B 0.045%, Mo 0.020%, Zn 0.03%, Ti 0.03%, the balance is aluminum and unavoidable impurities; the aluminum alloy The preparation method of the profile is the same as in Example 1.

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PUM

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Abstract

The invention relates to an aluminum alloy profile for producing high-strength ultra-light all-aluminum vehicle frames and a preparation method thereof, which comprises the following components in weight percentage: Si 0.65-0.75%, Fe 0.17-0.22 %, Cu 0.17~0.22%, Mn 0.08~0.12%, Mg 0.85~0.95%, Cr 0.06~0.11%, B 0.03~0.06%, Mo 0.015~0.025%, Zn 0.03~0.05%, Ti 0.03~0.05%, The balance is aluminum and unavoidable impurities; based on the 6061 formula, B and Mo are added for alloying treatment. B, Mo and Mn, Cr, Ti in the formula have a synergistic effect, which can improve the quality of aluminum alloy products. Surface quality and welding quality; Mo and Mg, Mo and Al have a synergistic effect, which can improve the surface quality and impact resistance of aluminum alloy products.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys for automobiles, in particular to an aluminum alloy profile for producing high-strength ultra-light all-aluminum vehicle frames and a preparation method thereof. Background technique [0002] Automobile frames are generally composed of longitudinal beams and cross beams. There are mainly two types of side beams and middle beams. The side beam frame is composed of two longitudinal beams on both sides and several beams. Connect the longitudinal beams to the cross beams to form a strong rigid frame. In recent years, with the development of the automobile industry, the requirements for the strength and light weight of the frame have become higher and higher. Many companies that produce frames have tried to improve the structure of the frame, but the results have been minimal and unsatisfactory. [0003] The typical lightweight aluminum alloy 6061 is a high-quality aluminum alloy material with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C1/03C22C1/06B22D30/00C22F1/047
CPCB22D30/00C22C1/026C22C1/03C22C1/06C22C21/08C22F1/047
Inventor 崔建国
Owner WUJIANG CITY XINSHEN ALUMINUM TECH DEV