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High-strength and heat-resistant cast aluminum alloy material

A casting aluminum alloy with high strength technology, which is applied in the field of aluminum alloy materials, can solve the problems of high formula cost and poor comprehensive mechanical properties of cast aluminum alloy, and achieve the effects of increased strength and hardness, improved comprehensive mechanical properties, and low porosity

Inactive Publication Date: 2018-09-21
铜陵康达铝合金制品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned technical problems, the object of the present invention is to provide a high-strength, heat-resistant cast aluminum alloy material to solve the problems of poor comprehensive mechanical properties and high formula cost of cast aluminum alloy in the prior art; the present invention also provides the The preparation method of high strength and heat-resistant cast aluminum alloy material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-strength, heat-resistant cast aluminum alloy material, composed of the following components in mass percentage: Si7.25%, Fe0.35%, Cu 3.2%, Mn 0.4%, Mg 0.35%, Zn 0.25%, Cr 0.02% , Ni 0.15%, Ti 0.16%, Pb 0.04%, Sr 0.008%, the balance is Al and unavoidable impurities.

[0031] The preparation method of the high-strength, heat-resistant cast aluminum alloy material described in this embodiment comprises the following steps:

[0032] (1) Ingredients: Prepare raw materials according to the requirements of the components: aluminum matrix alloy, aluminum-manganese AlMn master alloy, aluminum-silicon AlSi master alloy, aluminum-copper AlCu master alloy, aluminum-magnesium AlMg master alloy, aluminum-zinc AlZn master alloy, aluminum-titanium AlTi master alloy and aluminum strontium AlSr master alloy; the aluminum matrix alloy is recycled aluminum, and the recycled aluminum is mainly the tailings produced by the processing of aluminum rods, aluminum strips, and castings;

...

Embodiment 2

[0035] A high-strength, heat-resistant cast aluminum alloy material, composed of the following components in mass percentage: Si7.25%, Fe0.38%, Cu 3.55%, Mn 0.38%, Mg 0.35%, Zn 0.25%, Cr 0.02% , Ni0.15%, Ti 0.16%, Pb 0.05%, Sr 0.008%, the balance is Al and unavoidable impurities.

[0036] The preparation method of the high-strength, heat-resistant cast aluminum alloy material described in this embodiment comprises the following steps:

[0037] (1) Ingredients: Prepare raw materials according to the requirements of the components: aluminum matrix alloy, aluminum-manganese AlMn master alloy, aluminum-silicon AlSi master alloy, aluminum-copper AlCu master alloy, aluminum-magnesium AlMg master alloy, aluminum-zinc AlZn master alloy, aluminum-titanium AlTi master alloy and an aluminum strontium AlSr master alloy; the aluminum matrix alloy is an A00 aluminum alloy ingot;

[0038] (2) Smelting: first add the aluminum matrix alloy described in step (1) into the melting furnace, raise...

Embodiment 3

[0040] A high-strength, heat-resistant cast aluminum alloy material, composed of the following components in mass percentage: Si 7.5%, Fe0.42%, Cu 3.3%, Mn 0.36%, Mg 0.38%, Zn 0.25%, Cr 0.02%, Ni 0.15%, Ti 0.16%, Pb 0.06%, Sr 0.008%, the balance is Al and unavoidable impurities.

[0041] The preparation method of the high-strength, heat-resistant cast aluminum alloy material described in this embodiment comprises the following steps:

[0042] (1) Ingredients: Prepare raw materials according to the requirements of the components: aluminum matrix alloy, aluminum-manganese AlMn master alloy, aluminum-silicon AlSi master alloy, aluminum-copper AlCu master alloy, aluminum-magnesium AlMg master alloy, aluminum-zinc AlZn master alloy, aluminum-titanium AlTi master alloy and an aluminum strontium AlSr master alloy; the aluminum matrix alloy is an A00 aluminum alloy ingot;

[0043] (2) Smelting: first add the aluminum matrix alloy described in step (1) into the melting furnace, raise ...

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Abstract

The invention provides a high-strength and heat-resistant cast aluminum alloy material and further provides a preparation method of the high-strength and heat-resistant cast aluminum alloy material. The high-strength and heat-resistant cast aluminum alloy material is composed of the following components of, by mass, 7.2-7.8% of Si, no more than 0.45% of Fe, 3.1-3.6% of Cu, 0.2-0.5% of Mn, 0.25-0.4% of Mg, 0.2-0.3% of Zn, no more than 0.04% of Cr, 0.1-0.25% of Ni, 0.12-0.2% of Ti, 0.004-0.01% of Sr, no more than 0.1% of Pb and the balance Al and inevitable impurities. The high-strength and heat-resistant cast aluminum alloy material is high in strength, good in heat-resistance performance, scientific and economic in formula, good in casting performance and especially suitable for being usedas an engine air cylinder cover cast aluminum alloy material.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy materials, in particular to a high-strength, heat-resistant cast aluminum alloy material. Background technique [0002] With the development of modern technology and industry, the demand for high-strength structural materials in electronics, aerospace, navigation, high-speed trains, automobiles and other transportation industries is increasingly urgent. It is required to reduce weight and cost as much as possible under the premise of ensuring strength to improve For carrying capacity and speed, high-strength cast aluminum alloy becomes the first choice. [0003] High-strength aluminum alloy has the advantages of small specific gravity, high strength and excellent processing performance, and is widely used in the aviation industry and civil industry fields such as automotive engines and their brackets and other structural parts. At present, although there are many kinds of aluminum alloys w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03
Inventor 胡茂友胡晓英胡晓青王建新
Owner 铜陵康达铝合金制品有限责任公司
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