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High-rust-proof aluminum alloy and preparation method thereof

An aluminum alloy and pure aluminum ingot technology, applied in the field of aluminum alloys, can solve the problems of poor rust-proof performance, poor casting performance, and difficulty in die-casting of rust-proof aluminum alloys, and achieve excellent rust-proof performance, good casting performance, Easy to process effect

Inactive Publication Date: 2021-04-06
中山市银骏五金制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The main purpose of the present invention is to propose a high anti-rust aluminum alloy and its preparation method, which solves the problems of poor anti-rust performance, poor casting performance and difficult die-casting of existing anti-rust aluminum alloys

Method used

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preparation example Construction

[0036] In a second aspect, a method for preparing a medium and high rust-proof aluminum alloy in the first aspect is provided, comprising the steps of:

[0037] Melting: Select raw materials according to the composition and mass percentage of the high rust-proof aluminum alloy, first put the pure aluminum ingot into the furnace to melt, then Mg, Ti, Mn, Fe, Si, Zn, Ni, Ga, Pb, Zr , V, B, Cr, Cu, Bi, Ca, Ce, Co, Cd, Na, Sn, Sr, Li, Ag, Be, La alloy elements are added to the furnace for melting to obtain a melt;

[0038] Refining: refining the melt, and leaving it to stand after slag removal;

[0039] Die-casting: Die-casting is performed after standing.

[0040] Among them, pure aluminum ingots are put into a furnace to be melted at 680-700°C.

[0041] By changing the composition of the aluminum alloy, the present invention prevents the aluminum alloy from rusting and greatly prolongs the service life. The method of the present invention is simple, low in cost and easy to pro...

Embodiment 1

[0044] A high rust-proof aluminum alloy, its components and the mass percentage of each component are: Mg 6.55%, Ti 0.15%, Mn 0.712%, Fe 0.221%, Si 0.0767%, Zn 0.03%, Ni 0.0107%, Ga0.0214%, Pb 0.0188%, Zr 0.0269%, V 0.0169%, B 0.006%, Cr 0.0088%, Cu0.0011%, Bi 0.0014%, Ca0.0045%, Ce 0.0015%, Co 0.0064%, Cd 0.001% , Na 0.0046%, Sn 0.0083%, Sr 0.0012%, Li 0.00038%, Ag 0.00032%, Be 0.00092%, La 0.00086%, and the balance is Al.

Embodiment 2

[0046] A high rust-proof aluminum alloy, its components and the mass percentage of each component are: Mg 6%, Ti 0.1%, Mn 0.6%, Fe 0.18%, Si 0.05%, Zn 0.02%, Ni 0.009%, Ga 0.02%, Pb 0.009%, Zr 0.01%, V 0.008%, B 0.005%, Cr 0.006%, Cu 0.001%, Bi 0.001%, Ca 0.002%, Ce0.001%, Co 0.004%, Cd 0.0008%, Na 0.003%, Sn 0.006%, Sr 0.0008%, Li 0.0001%, Ag 0.0001%, Be 0.0007%, La 0.0006%, and the balance is Al.

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Abstract

The invention discloses a high-rust-proof aluminum alloy and a preparation method thereof. According to the high-rust-proof aluminum alloy and the preparation method thereof, by optimizing Al, Mg and Ti main alloy elements and adding Mn, Fe, Si, Zn, Ni, Ga, Pb, Zr, V, B, Cr, Cu, Bi, Ca, Ce, Co, Cd, Na, Sn, Sr, Li, Ag, Be and La elements, the content of the components is scientifically regulated and controlled, and through mutual coordination of the components, the prepared aluminum alloy has excellent rust resistance, can be effectively prevented from being oxidized and rusted, has good casting performance, is easy to die-cast and form, and can be machined into objects with various shapes.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular to a high antirust aluminum alloy and a preparation method thereof. Background technique [0002] Aluminum alloy is composed of aluminum as the matrix element. The density of aluminum alloy is low, but its strength is relatively high, which is close to or exceeds that of high-quality steel. It has good plasticity and can be processed into various objects. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is the most widely used non-ferrous metal material in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry, and its usage is second only to steel. [0003] The content of aluminum in most aluminum alloys does not exceed 90%. Other metals in aluminum alloys are likely to cause rust spots on the aluminum alloy, which not only affects the appearance and function, but also affects the service life, which may...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/02B22D17/00
CPCB22D17/00C22C1/026C22C21/08
Inventor 蓝朝兴
Owner 中山市银骏五金制品有限公司
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