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Automobile body plate aluminum alloy containing rare earths and preparation method of automobile body plate aluminum alloy

A technology for automobile body panels and aluminum alloys, applied in the field of automobile body panel aluminum alloys and its preparation

Inactive Publication Date: 2018-05-01
湖南恒佳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a rare earth-containing aluminum alloy for automobile body panels and its preparation method, to solve how to optimize the aluminum alloy formula components, dosage, method, etc., and improve the tensile strength, elongation and corrosion resistance of the aluminum alloy technical issues

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  • Automobile body plate aluminum alloy containing rare earths and preparation method of automobile body plate aluminum alloy

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preparation example Construction

[0028] The preparation method of the rare earth-containing aluminum alloy of automobile body panels comprises the following steps:

[0029] S1: Add aluminum ingots to the electromagnetic induction furnace, increase the temperature to 850-900°C to melt them, add silicon, manganese, copper, and lanthanum powders wrapped in aluminum foil to melt, and stir the alloy melt. After stirring for 12-14min, perform degassing treatment, stand still, and then perform ultrasonic treatment to obtain an aluminum-silicon-manganese-copper-lanthanum alloy intermediate. The temperature of the ultrasonic treatment is 780-800°C, and the ultrasonic power is 22-25KW. The processing time is 26-32min; adopt the same method to prepare the aluminum-titanium-carbon-cerium alloy intermediate; the aluminum-silicon-manganese-copper-lanthanum alloy intermediate and the aluminum-titanium-carbon-cerium alloy intermediate by weight Making a grain refiner, the size of the grain refiner is below 15 μm;

[0030]S2...

Embodiment 1

[0037] An aluminum alloy for automobile body panels containing rare earths, comprising the following raw materials in mass percentage: 1.3% titanium, 0.03% zinc, 0.6% iron, 0.12% silicon, 0.2% manganese, 1.2% copper, 0.5% carbon, 0.06% chromium, Boron 1.31%, magnesium 0.12%, molybdenum 0.4%, tungsten 1.2%, vanadium 0.67%, rare earth element 4.5%, refining agent 1%, fatty alcohol polyoxyethylene ether sodium sulfate 1.2%, grain refiner 4.7%, the rest for aluminum;

[0038] The rare earth elements are in parts by weight, including the following raw materials: 1.3 parts of lanthanum, 1.1 parts of cerium, 0.7 parts of praseodymium, 0.2 parts of neodymium, 0.1 parts of samarium, 0.4 parts of dysprosium, 0.5 parts of holmium, 0.1 parts of ytterbium, and 0.2 parts of yttrium;

[0039] The refining agent includes the following raw materials in parts by weight: 15 parts of sodium chloride, 13 parts of sodium fluoride, 6 parts of graphite, and 5 parts of calcium fluoride;

[0040] The ...

Embodiment 2

[0049] An aluminum alloy for automobile body panels containing rare earths, comprising the following raw materials in mass percentage: 0.9% titanium, 0.1% zinc, 0.5% iron, 0.08% silicon, 0.15% manganese, 1.6% copper, 0.2% carbon, 0.05% chromium, Boron 0.11%, magnesium 0.06%, molybdenum 0.2%, tungsten 1.7%, vanadium 0.43%, rare earth elements 3.5%, refining agent 1.6%, fatty alcohol polyoxyethylene ether sodium sulfate 2.6%, grain refiner 4.2%, the rest for aluminum;

[0050] The rare earth elements are in parts by weight, including the following raw materials: 1.6 parts of lanthanum, 1.3 parts of cerium, 0.8 parts of praseodymium, 0.6 parts of neodymium, 0.2 parts of samarium, 0.6 parts of dysprosium, 1 part of holmium, 0.4 parts of ytterbium, and 0.5 parts of yttrium;

[0051] The refining agent includes the following raw materials in parts by weight: 25 parts of sodium chloride, 16 parts of sodium fluoride, 8 parts of graphite, and 7 parts of calcium fluoride;

[0052] The ...

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Abstract

The invention discloses an automobile body plate aluminum alloy containing rare earths and a preparation method of the automobile body plate aluminum alloy, and belongs to the technical field of aluminum alloy preparation. The automobile body plate aluminum alloy containing rare earths comprises titanium, zinc, iron, silicon, manganese, copper, carbon, chromium, boron, magnesium, molybdenum, tungsten, vanadium, rare earth, refining agents, sodium alcohol ether sulphate, grain refinement agents and aluminum. The automobile body plate aluminum alloy containing rare earths is formed by the stepsof melting, refining, slagging, casting and the like. By means of the automobile body plate aluminum alloy containing rare earths, the tensile strength, elongation and corrosion resistance of the aluminum alloy can be improved obviously.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy preparation, and in particular relates to an aluminum alloy of an automobile body plate containing rare earth and a preparation method thereof. Background technique [0002] At present, with the rapid development of the economy, people's living standards are also gradually improving. Cars, as people's daily means of transportation, have gradually entered thousands of households. When making cars, people's considerations are mainly about Environmental protection and safety performance, in order to reduce fuel consumption, people usually use the method of reducing the weight of the car, which means that a material is needed that can achieve better structural strength and light weight at the same time. Aluminum alloy materials have low density, but relatively high strength High, close to or exceeding high-quality steel, good plasticity, can be processed into various profiles, and has high stru...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/03C22C1/06C22F1/04
CPCC22C21/00C22C1/026C22C1/03C22C1/06C22F1/04
Inventor 蒋继明蒋丰产蒋会阳陈智斌林建华
Owner 湖南恒佳新材料科技有限公司
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