CN103667802A

CN103667802A - Aluminum alloy

Info

Publication number: CN103667802A
Application number: CN201310568098.6A
Authority: CN
Inventors: 殷定江
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-14
Filing date: 2013-11-14
Publication date: 2014-03-26

Abstract

The invention discloses an aluminum alloy which is characterized by comprising the following components in percentage by weight: 0.3-0.5 part of silicon, 0.1-0.5 part of iron, 2.0-3.5 parts of copper, 0.1-0.3 part of manganese, 1.0-1.8 parts of magnesium, 2.0-4.0 parts of tin, 0.1-0.25 part of zinc and the balance of aluminum and impurities. As a certain amount of tin metal is added, the welding of elements copper and aluminum is prompted, and the antifriction performance of the aluminum alloy is improved.

Description

A kind of aluminium alloy

Technical field

The present invention relates to a kind of formula of aluminium alloy.

Background technology

At present, it is more and more that the product of aluminum becomes in daily life, the product that is mainly aluminum is conventionally low weight, and surface is not easy oxidized, conventionally in daily life related to aluminum product be not fine aluminium substantially, but by adding the alloy combination of some other metal ingredients, we are referred to as aluminium alloy conventionally, in aluminium alloy, there are a lot of metallic elements, copper more commonly, silicon, magnesium, zinc etc., but fewer toward adding tin element in aluminium alloy, tin alloy fusing point is low, there are higher thermal conductivity and lower thermal expansivity, atmospheric corrosion resistance, there is good antifriction performance, Yi Yugang, copper, the seam of the material such as aluminium and alloy thereof, so relatively meet the added ingredients of aluminium alloy.

Summary of the invention

The technical issues that need to address of the present invention are, a kind of aluminium alloy is provided, and add a certain amount of tin metal, promote the seam between copper, aluminium element, improve aluminum alloy antifriction performance.

Technical scheme of the present invention is: a kind of aluminium alloy, is characterized in that: the weight percent of its each component is as follows: silicon: 0.3～0.5, and iron: 0.1～0.5, copper: 2.0～3.5, manganese: 0.1～0.3, magnesium: 1.0～1.8, tin: 2.0～4.0, zinc: 0.1～0.25, surplus is aluminium and impurity.

Preferably, the weight percent of its each component is as follows: silicon: 0.3～0.4, and iron 0.1～0.5, copper: 2.0～3.0, manganese: 0.2～0.3, magnesium: 1.0～1.8, tin: 2.2～4.0, zinc 0.1～0.25, surplus is aluminium and impurity.

Preferably, the weight percent of its each component is as follows: silicon: 0.35, and iron: 0.25, copper 2.5, manganese: 0.25, magnesium 1.5, tin 3.0, zinc 0.2, surplus is aluminium and impurity.

Preferably, the weight percent of its each component is as follows: silicon: 0.35, and iron: 0.25, copper 2.8, manganese 0.25, magnesium 1.5, tin 3.5, zinc 0.2, surplus is aluminium and impurity.

Preferably, the weight percent of its each component is as follows: silicon: 0.30, and iron: 0.25, copper 3.0, manganese 0.25, magnesium 1.5, tin 4.0, zinc 0.2, surplus is aluminium and impurity.

Adopt after the technical program, the aluminium alloy that it prepares out because contain a certain amount of tin element, tin element can with aluminium alloy in aluminium element and copper seam, compare with common aluminum alloy and have higher erosion resistance and wear resistance.

Embodiment

Below the specific embodiment of the present invention is described further:

In formula provided by the invention, the weight proportion of its each composition is respectively: 0.3～0.5, and iron: 0.1～0.5, copper: 2.0～3.5, manganese: 0.1～0.3, magnesium: 1.0～1.8, tin: 2.0～4.0, zinc: 0.1～0.25, surplus is aluminium and impurity.

In composition, silicon can improve the castability of alloy, and silicon and aluminium can form sosoloid, and silicon composition can not be excessive, once volume can make machining difficulty, silumin is serious to the corrosion of foundry goods crucible; Copper, increases copper content, can put forward heavy alloyed mobility, tensile strength and hardness, but reduced solidity to corrosion and plasticity, hot cracking tendency increases; Magnesium adds a small amount of magnesium in aluminium alloy, can improve intensity and yield strength, has improved the machinability of alloy; Zinc can improve mobility in aluminium alloy, increases red brittleness, reduces solidity to corrosion, therefore the content that should control zinc is in specialized range; Iron all contains detrimental impurity in all aluminium alloys.Because iron-holder in aluminium alloy is when too high, iron is present in alloy with sheet or the acicular structure of FeAl3, Fe2Al7 and Al-Si-Fe, reduces mechanical property, and this organizing also can make the mobility of alloy lower, and hot crackability increases; Manganese can reduce the harmful effect of iron in aluminium alloy, can make the sheet or the acicular structure that in aluminium alloy, from iron, are formed become fine and closely woven crystalline structure, therefore general aluminium alloy allows the manganese below 0.5% to exist, when manganese content is too high, can cause segregation; Tin element can with aluminium alloy in aluminium element and copper seam, compare with common aluminum alloy and have higher erosion resistance and wear resistance.

Considered the effect of several elements, drawn the scheme of an optimization, the weight ratio of its each component is as follows:

Silicon: 0.35, iron: 0.25, copper 2.5, manganese 0.25, magnesium 1.5, tin 3.0, zinc 0.2, surplus is aluminium and impurity.

In this scheme, each comparison of ingredients is average, can bring into play the due effect of each component in aluminium alloy, some are as the criterion to be no more than limited range as the detrimental impurity of iron and so on as far as possible, and the content of copper, tin can suitably improve, and contributes to strengthen the strength property of aluminium alloy.

Also can choose weight percent as follows: silicon: 0.35, iron: 0.25, copper 2.8, manganese 0.25, magnesium 1.5, tin 3.5, zinc 0.2, surplus is aluminium and impurity.Or:

Silicon: 0.30, iron: 0.25, copper 3.0, manganese 0.25, magnesium 1.5, tin 4.0, zinc 0.2, surplus is aluminium and impurity.These two schemes have further promoted the composition proportion of copper and tin.

Below only just the present invention preferably example be described, but can not be interpreted as it is limitations on claims.The present invention not only limits to and above example, and those skilled in the art can make according to the present invention various changes and distortion, only otherwise depart from spirit of the present invention, all should belong to the defined scope of claims of the present invention.

Claims

1. an aluminium alloy, is characterized in that: the weight percent of its each component is as follows: silicon: 0.3～0.5, and iron: 0.1～0.5, copper: 2.0～3.5, manganese: 0.1～0.3, magnesium: 1.0～1.8, tin: 2.0～4.0, zinc: 0.1～0.25, surplus is aluminium and impurity.

2. aluminium alloy according to claim 1, is characterized in that: the weight percent of its each component is as follows: silicon: 0.3～0.4, and iron 0.1～0.5, copper: 2.0～3.0, manganese: 0.2～0.3, magnesium: 1.0～1.8, tin: 2.2～4.0, zinc 0.1～0.25, surplus is aluminium and impurity.

3. aluminium alloy according to claim 2, is characterized in that: the weight percent of its each component is as follows: silicon: 0.35, and iron: 0.25, copper 2.5, manganese: 0.25, magnesium 1.5, tin 3.0, zinc 0.2, surplus is aluminium and impurity.

4. aluminium alloy according to claim 2, is characterized in that: the weight percent of its each component is as follows: silicon: 0.35, and iron: 0.25, copper 2.8, manganese 0.25, magnesium 1.5, tin 3.5, zinc 0.2, surplus is aluminium and impurity.

5. aluminium alloy according to claim 2, is characterized in that: the weight percent of its each component is as follows: silicon: 0.30, and iron: 0.25, copper 3.0, manganese 0.25, magnesium 1.5, tin 4.0, zinc 0.2, surplus is aluminium and impurity.