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6-series aluminum alloy used for structural part of automobile and preparation method

A technology of automobile structure and aluminum alloy, applied in the field of alloy, to achieve the effect of uniform and dense distribution

Inactive Publication Date: 2019-01-08
湖南恒佳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still room for further improvement in the performance of alloys.

Method used

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Examples

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Embodiment 1

[0027] A 6-series aluminum alloy for automotive structural parts, comprising the following raw materials in parts by weight: 97.5 parts of aluminum, 0.5 parts of silicon, 0.25 parts of iron, 0.15 parts of copper, 0.15 parts of manganese, 1.5 parts of magnesium, 0.15 parts of chromium, zinc 0.075 parts, titanium 0.15 parts, lead 0.003 parts, sodium 0.002 parts, gallium 0.0015 parts, silver fluoride 0.015 parts, sulfur 0.03 parts, phosphorus 0.03 parts.

[0028] A kind of preparation method according to above-mentioned 6 series aluminum alloys for automotive structural parts, comprises the following steps: (1) metal silicon, pure iron, pure copper, pure manganese, pure magnesium, pure chromium, pure zinc, pure titanium, pure Lead, pure sodium, pure gallium and pure aluminum are melted and casted at 900°C for 20-40 minutes, after cooling down to 400-500°C, silver fluoride, phosphorus and sulfur are added, kept for 30 minutes, and the temperature is gradually raised to 800°C for 30...

Embodiment 2

[0030] A 6-series aluminum alloy for automotive structural parts, comprising the following raw materials in parts by weight: 97 parts of aluminum, 0.6 part of silicon, 0.2 part of iron, 0.2 part of copper, 0.1 part of manganese, 1.6 parts of magnesium, 0.1 part of chromium, zinc 0.1 part, titanium 0.1 part, lead 0.005 part, sodium 0.001 part, gallium 0.002 part, silver fluoride 0.01 part, sulfur 0.04 part, phosphorus 0.01 part.

[0031] A kind of preparation method according to above-mentioned 6 series aluminum alloys for automotive structural parts, comprises the following steps: (1) metal silicon, pure iron, pure copper, pure manganese, pure magnesium, pure chromium, pure zinc, pure titanium, pure Lead, pure sodium, pure gallium and pure aluminum were melted and casted at 1100°C for 20 minutes, and after cooling down to 500°C, silver fluoride, phosphorus and sulfur were added, kept for 30 minutes, and the temperature was gradually raised to 700°C for 30 minutes to obtain the ...

Embodiment 3

[0033] A 6-series aluminum alloy for automotive structural parts, comprising the following raw materials in parts by weight: 98 parts of aluminum, 0.4 part of silicon, 0.3 part of iron, 0.1 part of copper, 0.2 part of manganese, 1.4 parts of magnesium, 0.2 part of chromium, zinc 0.05 parts, 0.2 parts of titanium, 0.001 parts of lead, 0.003 parts of sodium, 0.001 parts of gallium, 0.02 parts of silver fluoride, 0.02 parts of sulfur, and 0.05 parts of phosphorus.

[0034] A kind of preparation method according to above-mentioned 6 series aluminum alloys for automotive structural parts, comprises the following steps: (1) metal silicon, pure iron, pure copper, pure manganese, pure magnesium, pure chromium, pure zinc, pure titanium, pure Melt and cast lead, pure sodium, pure gallium and pure aluminum at 800°C for 40 minutes, add silver fluoride, phosphorus and sulfur after cooling down to 400°C, keep the temperature for 30 minutes, and gradually raise the temperature to 900°C for 30...

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Abstract

The invention discloses a 6-series aluminum alloy used for a structural part of an automobile and a preparation method, which belong to the technical field of alloys. The 6-series aluminum alloy usedfor the structural part of the automobile comprises the following raw materials: silicon, iron, copper, manganese, magnesium, chromium, zinc, titanium, lead, sodium, gallium, aluminum, silver fluoride, phosphorus and sulfur. A preparation method of a sheet metal part of the automobile comprises the following steps: melting, hot rolling, cold rolling, solid solution, cutting and so on. In the invention, silver fluoride, phosphorus and sulfur are adopted as a reinforcing system, so that the mechanical property and the corrosion resistance of the 6-series aluminum alloy used for the structural part of the automobile are improved.

Description

technical field [0001] The invention relates to the field of alloy technology, in particular to a method for preparing a 6-series aluminum alloy for automotive structural parts. Background technique [0002] Aluminum alloy is composed of alloys with aluminum as the matrix element. The main alloying elements are copper, silicon, magnesium, zinc, manganese, and nickel, iron, titanium, chromium, lithium and other alloying elements. The density of aluminum alloy is low, but its strength is relatively high, which is close to or exceeds that of high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is used in aviation, aerospace, automobiles, and machinery manufacturing. It is the most widely used non-ferrous metal material in the marine, marine and chemical industries, and its usage is second only to steel. [0003] The Chinese patent with the application n...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/10C22C1/02C22F1/047
CPCC22C21/08C22C1/1036C22F1/047
Inventor 蒋继明蒋会阳陈智斌林建华谢芳
Owner 湖南恒佳新材料科技有限公司
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