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Castable aluminum alloy material for cylinder cover and preparation method thereof

A technology of aluminum alloy material and waste aluminum intermediate alloy, applied in the field of aluminum alloy, can solve the problems of aluminum smelting consuming large energy, exacerbating energy crisis, bauxite depletion, etc., and improving castability, formability and good processing performance. , the effect of improving ductility

Inactive Publication Date: 2015-11-25
FUYANG ANGU BOILER PRESSURE VESSEL MFG
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  • Abstract
  • Description
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Problems solved by technology

Primary aluminum can no longer meet the needs of society. On the one hand, bauxite is increasingly depleted, and on the other hand, aluminum smelting consumes a lot of energy, which aggravates the energy crisis.

Method used

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  • Castable aluminum alloy material for cylinder cover and preparation method thereof

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Embodiment Construction

[0015] The present invention will be described in detail below through specific examples.

[0016] A castable aluminum alloy material for cylinder head, which is composed of the following components in mass percentage: 6.5% silicon, 0.55% zinc, 0.4% nickel, 0.2% vanadium, 0.22% magnesium, 0.2% iron, 0.1% tin, 45% waste aluminum master alloy powder, and The amount is aluminum;

[0017] The waste aluminum master alloy powder is made of the following raw materials in parts by weight (kg): 60 waste aluminum scraps, 15 manganese, 10 copper, 6 chromium, 7 zirconium, 2 graphite powders, 1.5 sodium chloride, and 1 cryolite powder; The method is as follows: (1) Use a permanent magnet to suck out the iron products in the waste aluminum chips, then use an iron mesh sieve to remove the dust and sand, then use a detergent to remove the oil stains on the surface, and finally put it in an oven to dry the water and wait for it to dry. (2) Put the surface-treated waste aluminum into the cruci...

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Abstract

The invention discloses a castable aluminum alloy material for a cylinder cover. The castable aluminum alloy material for the cylinder cover is characterized by comprising, by mass, 6.5%-7.5% of silicon, 0.55%-0.6% of zinc, 0.4%-0.5% of nickel, 0.2%-0.3% of vanadium, 0.22%-0.25% of magnesium, 0.2%-0.3% of iron, 0.1%-0.15% of tin, 45%-50% of scrap aluminum intermediate alloy powder, and the balance aluminum. Due to the facts that the proportions of the components of the alloy are optimized, the scrap aluminum intermediate alloy powder is used as the main component, and an appropriate amount of vanadium is added, the ductility of the aluminum alloy can be improved, and the castability and formability of the alloy are improved. According to the castable aluminum alloy material for the cylinder cover, a special treatment process is adopted, a refining agent made of porous materials is added, negative pressure is beneficial to degassing, and meanwhile materials in metal slag are separated; the prepared aluminum alloy material is high in strength and toughness, good in machinability and particularly suitable for manufacturing the engine cylinder cover.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular to a castable aluminum alloy material for a cylinder head and a preparation method thereof. Background technique [0002] Cast aluminum alloy has a series of advantages such as small specific volume, high strength, good casting formability and processing performance, small expansion coefficient and good fluidity, and is widely used in automobiles, aviation, aerospace and home appliances and other industries. At present, most of the car engine cylinder blocks and cylinder heads at home and abroad have basically been produced with high-strength aluminum alloys. The all-aluminum alloy material reduces the weight of the body and at the same time enhances the heat dissipation effect of the engine, improves the working efficiency of the engine, and shortens the service life. longer. From the perspective of fuel saving, the advantages of cast aluminum engines in terms of fuel saving have at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03C22C1/06
Inventor 傅贵轩陈子育赵志刚刘云飞付丽丽张涛刘长征葛哲骏
Owner FUYANG ANGU BOILER PRESSURE VESSEL MFG
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