CN104388774A - Aluminum alloy - Google Patents

Abstract

The invention discloses an aluminum alloy. The aluminum alloy contains the ingredients in percentage by weight: 6-9% of Zn, 2-3% of Mg, 0.1-0.2% of Zr, 0-0.12% of Si, 0-0.25% of Fe, 0-0.1% of Mn, 0-0.03% of Ti, 0-0.05% of Cr, 0.0003-0.0008% of Sb and Cu, wherein the content of Cu is 1.3-1.8 times that of Mg. Compared with the existing aluminum alloys, the aluminum alloy disclosed by the invention has the advantage that the tensile strength and elongation percentage of the aluminum alloy can be obviously improved through adjusting the ingredient content.

Description

A kind of aluminium alloy

Technical field

The present invention relates to a kind of aluminium alloy with good mechanical strength.

Background technology

Aluminium alloy is a most widely used class non-ferrous metal structured material in industry, widely applies in Aeronautics and Astronautics, automobile, machinofacture, boats and ships and chemical industry.Along with develop rapidly that is scientific and technical and industrial economy, increasing to the demand of aluminium alloy, make the research of aluminium alloy also thereupon deeply.

Summary of the invention

The object of this invention is to provide a kind of aluminium alloy with good mechanical strength.

In order to solve the problems of the technologies described above, the invention provides following technical scheme:

A kind of aluminium alloy, by weight, the component of described aluminium alloy comprises:

Zn 6-9%, Mg 2-3%, Zr 0.1-0.2%, Si 0-0.12%, Fe 0-0.25%, Mn 0-0.1%, Ti 0-0.03%, Cr 0-0.05%, Sb 0.0003-0.0008% and Cu, wherein, the content of Cu is 1.3-1.8 times of Mg.

Compared with existing aluminium alloy, the present invention obviously can improve tensile strength and the unit elongation of aluminium alloy by adjustment component concentration, can be used as the substitute products of 7 excellent series alloys.

Embodiment

Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.

embodiment 1

A kind of aluminium alloy, by weight, the component of this aluminium alloy is as follows: Zn 7.1%, Cu 3.6%, Mg 2.4%, Zr 0.18%, Si 0.1%, Fe 0.15%, Mn 0.06%, Ti 0.002%, Cr 0.01%, Sb 0.0003%, surplus is aluminium.This aluminium alloy is inevitable impurity under containing preparation condition.By each component 730 DEG C of meltings, be cast into the sheet material that thickness is 5.00mm, tensile strength 730MPa, unit elongation 12%.

embodiment 2

A kind of aluminium alloy, by weight, the component of this aluminium alloy is as follows: Zn 6.5%, Cu 4.3%, Mg 2.6%, Zr 0.11%, Si 0.1%, Fe 0.12%, Mn 0.03%, Ti 0.006%, Cr 0.007%, Sb 0.0006%, surplus is aluminium.This aluminium alloy is inevitable impurity under containing preparation condition.By each component 730 DEG C of meltings, be cast into the sheet material that thickness is 5.00mm, tensile strength 701MPa, unit elongation 10%.

Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (1)

1. an aluminium alloy, by weight, the component of described aluminium alloy comprises:

Zn 6-9%, Mg 2-3%, Zr 0.1-0.2%, Si 0-0.12%, Fe 0-0.25%, Mn 0-0.1%, Ti 0-0.03%, Cr 0-0.05%, Sb 0.0003-0.0008% and Cu, wherein, the content of Cu is 1.3-1.8 times of Mg.