Aluminum alloy sheet

A technology of aluminum alloy plate and weight percentage, which is applied in the field of aluminum alloy, can solve the problems of proportion influence, poor impact toughness, and failure to meet the thermal conductivity requirements of parts, etc., to overcome impact cracks, improve strength and toughness, and improve the appearance of castings Effect

Inactive Publication Date: 2016-03-23
宁波市鄞州兴达旅游用品厂
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AI Technical Summary

Problems solved by technology

The aluminum alloys in the prior art are affected by the ratio of each element, have poor impact toughness, and cannot meet the thermal conductivity requirements of some parts

Method used

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Examples

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Embodiment Construction

[0010] The invention provides an aluminum alloy plate, wherein the weight percentage of the aluminum alloy plate is: Si: 8.0%-11.0%; Cu: 0.8%-1.0%; Mg: <0.1%; Fe: <1.5%; Zn: <1.0% %; Mn: <0.1%; Ni: <0.4%; Sn: <0.3%; Sr: 0.1% to 0.2%; Ti: 0.1% to 0.2%; The total amount of Sr, Ti and B is less than 0.3%.

[0011] Die-casting products using the above-mentioned aluminum alloy sheet have cold shock on the surface, reduced cracks, good elongation, and improved impact toughness and tensile strength.

[0012] Preferably, the weight percentage of the aluminum alloy plate is: Si: 9.0%-10.0%; Cu: 0.9%-0.95%; Mg: <0.1%; Fe: <1.0%; Zn: <1.0%; Mn: <0.1% ; Ni: <0.3%; Sn: <0.3%; Sr: 0.1%~0.2%; Ti: 0.1%~0.2%; B: 0.1%~0.2%, the balance is Al, and the total of Sr, Ti and B The amount is less than 0.2%.

[0013] In the present invention, strontium element is added to the aluminum alloy plate, which effectively improves the strength and toughness of the aluminum alloy plate, and the titanium an...

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Abstract

The invention provides an aluminum alloy sheet. The aluminum alloy sheet comprises, by weight, 8.0%-11.0% of Si, 0.8%-1.0% of Cu, 0-0.1% of Mg, 0-1.5% of Fe, 0-1.0% of Zn, 0-0.1% of Mn, 0-0.4% of Ni, 0-0.3% of Sn, 0.1%-0.2% of Sr, 0.1%-0.2% of Ti, 0.1%-0.2% of B, and the balance Al, and the total amount of the Sr, the Ti and the B is smaller than 0.3%. The Sr is added into the aluminum alloy sheet, so that the strength and the toughness of the aluminum alloy sheet are effectively improved; the Ti and the B are added into the aluminum alloy sheet so that good grain refinement can be generated, impact cracks are effectively avoided, the appearance of castings is improved, and the surface quality is improved; under the condition that the strength is not lowered, the impact toughness of the aluminum alloy sheet is effectively improved, and good heat conductivity is achieved.

Description

technical field [0001] The invention relates to an aluminum alloy, in particular to an aluminum alloy plate with good thermal conductivity. Background technique [0002] Aluminum alloy is an extended product of pure aluminum. Pure aluminum has low density, low melting point and high plasticity, so it is easy to process and can be made into various profiles and plates, and has good corrosion resistance. However, the strength of pure aluminum is very low, so it is not suitable for structural materials. Through long-term production practice and scientific experiments, people have gradually strengthened aluminum by adding alloying elements and using heat treatment, which resulted in a series of aluminum alloys. The aluminum alloys in the prior art are affected by the ratio of each element, have poor impact toughness, and cannot meet the thermal conductivity requirements of some parts. Contents of the invention [0003] 【1】Technical problems to be solved [0004] The technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02
Inventor 钱兴达
Owner 宁波市鄞州兴达旅游用品厂
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