CN103572128A - Aluminium alloy for golf clubs and preparation method - Google Patents

Abstract

The invention relates to an aluminium alloy for golf clubs and a preparation method. The aluminium alloy comprises the following components by weight percent: 9-10% of zinc, 3.1-3.5% of copper, 1.0-1.2% of magnesium, 0.03-0.05% of zirconium, 0.01-0.03% of vanadium, 0.01-0.03% of scandium, 0.001-0.002% of tungsten and the balance of aluminium and inevitable impurities. The aluminium alloy has the beneficial effects that the properties of an Al-Zn-Mg-Cu alloy system are improved, so that the properties can be more effectively applied in many fields.

Description

Aluminium alloy and preparation method for a kind of golf club

Technical field

The invention belongs to metal material field, specifically refer to aluminium alloy and preparation method for a kind of golf club.

Background technology

Known maximum intensity aluminium alloy is based on aluminium-zinc-magnesium-copper system at present.The commercialization high-strength alloy of producing at present comprises AA7055 (nominal 8%Zn-2%Mg-2.2%Cu-0.10%Zr), AA7068 (nominal 7.8%Zn-2.5%Mg-2.0%Cu-0.10%Zr), is called the Kaiser aluminium alloy (nominal 8%Zn-2.2%Mg-1.8%Cu-0.14%Zr) of K749.Be not all alloying elements at 860 o'clock all in sosoloid, not only can not be for aging sclerosis, and remaining not dissolving mutual-assistance toughness reduces after thermal treatment.Although carry out solution heat treatment at the comparatively high temps that surpasses 860, can dissolve more solute, but must take more care to guarantee that eutectic melting does not occur alloy, this is problem common in industrial cast alloys, owing to there is microsegregation in casting cycle, causes Local enrichment region.

In many application of sports goods and so on, need the stronger alloy based on aluminium-zinc-magnesium-copper system, and the toughness of sacrificial alloy not.But this needs have proposed a problem, because generally speaking, along with the tensile strength increase of aluminium alloy, its toughness declines.

Summary of the invention

The object of this invention is to provide a kind of aluminium alloy technical scheme, by the technical program, use rich alloy chemistry that tensile strength is increased and do not sacrifice toughness.

The present invention is achieved by the following technical solutions:

A kind of golf club aluminium alloy, its composition is by weight percentage, the zinc of 9-10%, the copper of 3.1-3.5%, the magnesium of 1.0-1.2%, the vanadium of the zirconium of 0.03-0.05%, 0.01-0.03%, the tungsten of the scandium of 0.01-0.03%, 0.001-0.002%, surplus is aluminium and inevitable impurity.

In described impurity, the content of silicon should not surpass by weight percentage 0.05%.

Golf club aluminium alloy preparation method:

Be by weight percentage, the zinc of 9-10%, the copper of 3.1-3.5%, the magnesium of 1.0-1.2%, the vanadium of the zirconium of 0.03-0.05%, 0.01-0.03%, the tungsten of the scandium of 0.01-0.03%, 0.001-0.002%, surplus is aluminium and inevitable impurity batching;

By the melting in smelting furnace of above-mentioned batching, wherein tungsten is in smelting furnace, after melting, to add at first other composition in partinium mode again;

After being cast into ingot, carry out homogenizing processing, wherein, when alloy is heated to the temperature that approaches as far as possible its fusing point, adopt slower temperature rise rate; Particularly, for the last 20-30 degree lower than fusing point, temperature rise rate is limited in and is equal to or less than 20 ℃/h, thereby makes the amount of low melting point eutectic phase minimum, further puies forward heavy alloyed fracture toughness; After reaching fusing point, after holding temperature 1-3 hour, extrude or roll forming;

Shaping prod preferably carries out solution heat treatment at 870-900 ℃, then carries out temper(ing);

By making product experience twice heat treatment process, carry out burin-in process;

In heat treatment process for the first time, product is at the Temperature Treatment 3-30 hour of 180-280 ℃;

Be for the second time after thermal treatment for the first time, product is maintained to 2-24 hour with 8-10 ℃/h of temperature that is at the uniform velocity warmed up to 340-355 ℃;

With 10-15 ℃/min at the uniform velocity cool to 135 ℃ after naturally cooling.

The invention has the beneficial effects as follows:

Improve the character of Al-Zn-Mg-Cu alloy system, made them can be more effectively for many application.

Embodiment

A kind of golf club aluminium alloy, its composition is by weight percentage, the zinc of 9-10%, the copper of 3.1-3.5%, the magnesium of 1.0-1.2%, the vanadium of the zirconium of 0.03-0.05%, 0.01-0.03%, the tungsten of the scandium of 0.01-0.03%, 0.001-0.002%, surplus is aluminium and inevitable impurity.

In described impurity, the content of silicon should not surpass by weight percentage 0.05%.

Golf club aluminium alloy preparation method:

Be by weight percentage, the zinc of 9-10%, the copper of 3.1-3.5%, the magnesium of 1.0-1.2%, the vanadium of the zirconium of 0.03-0.05%, 0.01-0.03%, the tungsten of the scandium of 0.01-0.03%, 0.001-0.002%, surplus is aluminium and inevitable impurity batching;

By the melting in smelting furnace of above-mentioned batching, wherein tungsten is in smelting furnace, after melting, to add at first other composition in partinium mode again;

After being cast into ingot, carry out homogenizing processing, wherein, when alloy is heated to the temperature that approaches as far as possible its fusing point, adopt slower temperature rise rate; Particularly, for the last 20-30 degree lower than fusing point, temperature rise rate is limited in and is equal to or less than 20 ℃/h, thereby makes the amount of low melting point eutectic phase minimum, further puies forward heavy alloyed fracture toughness; After reaching fusing point, after holding temperature 1-3 hour, extrude or roll forming;

Shaping prod preferably carries out solution heat treatment at 870-900 ℃, then carries out temper(ing);

By making product experience twice heat treatment process, carry out burin-in process;

In heat treatment process for the first time, product is at the Temperature Treatment 3-30 hour of 180-280 ℃;

Be for the second time after thermal treatment for the first time, product is maintained to 2-24 hour with 8-10 ℃/h of temperature that is at the uniform velocity warmed up to 340-355 ℃;

With 10-15 ℃/min at the uniform velocity cool to 135 ℃ after naturally cooling.

Embodiment 1

An aluminium alloy, its composition is by weight percentage, 10% zinc, 3.5% copper, 1.2% magnesium, 0.05% zirconium, 0.03% vanadium, 0.03% scandium, 0.002% tungsten, surplus is aluminium and inevitable impurity.

Embodiment 2

An aluminium alloy, its composition is by weight percentage, 9% zinc, 3.1% copper, 1.0% magnesium, 0.03% zirconium, 0.01% vanadium, 0.01% scandium, 0.001% tungsten, surplus is aluminium and inevitable impurity.

Embodiment 3

An aluminium alloy, its composition is by weight percentage, 9.5% zinc, 3.3% copper, 1.1% magnesium, 0.035% zirconium, 0.015% vanadium, 0.02% scandium, 0.0015% tungsten, surplus is aluminium and inevitable impurity.

Claims (3)

1. a golf club aluminium alloy, it is characterized in that: its composition is by weight percentage, the zinc of 9-10%, the copper of 3.1-3.5%, the magnesium of 1.0-1.2%, the vanadium of the zirconium of 0.03-0.05%, 0.01-0.03%, the tungsten of the scandium of 0.01-0.03%, 0.001-0.002%, surplus is aluminium and inevitable impurity.

2. golf club aluminium alloy according to claim 1, is characterized in that: in described impurity, the content of silicon should not surpass by weight percentage 0.05%.

3. golf club aluminium alloy preparation method: it is characterized in that:

Be by weight percentage, the zinc of 9-10%, the copper of 3.1-3.5%, the magnesium of 1.0-1.2%, the vanadium of the zirconium of 0.03-0.05%, 0.01-0.03%, the tungsten of the scandium of 0.01-0.03%, 0.001-0.002%, surplus is aluminium and inevitable impurity batching;

By the melting in smelting furnace of above-mentioned batching, wherein tungsten is in smelting furnace, after melting, to add at first other composition in partinium mode again;

After being cast into ingot, carry out homogenizing processing, wherein, when alloy is heated to the temperature that approaches as far as possible its fusing point, adopt slower temperature rise rate; Particularly, for the last 20-30 degree lower than fusing point, temperature rise rate is limited in and is equal to or less than 20 ℃/h, thereby makes the amount of low melting point eutectic phase minimum, further puies forward heavy alloyed fracture toughness; After reaching fusing point, after holding temperature 1-3 hour, extrude or roll forming;

Shaping prod preferably carries out solution heat treatment at 870-900 ℃, then carries out temper(ing);

By making product experience twice heat treatment process, carry out burin-in process;

In heat treatment process for the first time, product is at the Temperature Treatment 3-30 hour of 180-280 ℃;

Be for the second time after thermal treatment for the first time, product is maintained to 2-24 hour with 8-10 ℃/h of temperature that is at the uniform velocity warmed up to 340-355 ℃;

With 10-15 ℃/min at the uniform velocity cool to 135 ℃ after naturally cooling.