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Engine cylinder cover aluminium alloy material smelt by utilizing aluminium scrap and preparation method thereof

An engine cylinder head and aluminum alloy material technology, applied in the field of aluminum alloys, can solve the problems of bauxite depletion, aggravated energy crisis, large energy consumption in aluminum smelting, etc., and achieves good wear resistance, weldability and formability. , the effect of anti-corrosion performance

Inactive Publication Date: 2015-08-26
WUHU HONGKUN AUTO PARTS
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  • Description
  • Claims
  • Application Information

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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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  • Engine cylinder cover aluminium alloy material smelt by utilizing aluminium scrap and preparation method thereof

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Embodiment Construction

[0016] The present invention will be described in detail below through specific examples.

[0017] An aluminum alloy material for an engine cylinder head smelted from waste aluminum, which is composed of the following components by mass percentage: 7.2 silicon, 0.55 zinc, 0.1 magnesium, 0.2 titanium, 0.03 scandium, 0.1 cobalt, 0.06 niobium, 1.5 dolomite, and fluorine Sodium chloride 1, waste aluminum master alloy powder 45, the balance is aluminum;

[0018] 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...

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Abstract

The invention discloses an engine cylinder cover aluminium alloy material smelt by utilizing aluminium scrap, which is characterized by consisting of the following components in mass percentage: 7.2-8 of silicon, 0.55-0.6 of zinc, 0.1-0.15 of magnesium, 0.2-0.3 of titanium, 0.03-0.05 of scandium, 0.1-0.13 of cobalt, 0.06-0.07 of niobium, 1.5-2 of dolomite, 1-1.5 of sodium fluoride, 45-50 of aluminium scrap middle alloy powder and the balance of aluminium. The aluminium alloy material manufactured by the invention has the characteristics that the inside is compact and pore-free; pore and peeling defects do not exist; the abrasive resistance is good; the corrosion resistance is good; the swelling coefficient is small; the intensity is high; the high-thermal stability is good; weldability and forming property are good and the like. The aluminium alloy material can be used for manufacturing an engine cylinder cover.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular to an aluminum alloy material for an engine cylinder head smelted by scrap aluminum 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 te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03C22C1/06C22F1/043
Inventor 黄浩
Owner WUHU HONGKUN AUTO PARTS
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