Novel aluminum alloy material and preparation method thereof

An aluminum alloy material and aluminum alloy technology, applied in the field of aluminum alloy materials, can solve the problems of many alloy cracks and poor elongation, achieve good elongation, provide elongation and impact toughness, and reduce cracks.

Inactive Publication Date: 2018-12-28
TIANJIN HENGYATONG MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a new type of aluminum alloy material and its preparation method, aiming to overcome the defects of many alloys with many cracks and poor elongation in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A new type of aluminum alloy material, comprising 90 parts by weight of aluminum, 15 parts of nickel-titanium alloy, 1.8 parts of iron, 1.5 parts of copper, 0.85 parts of silicon, 2 parts of zinc, and 0.25 parts of magnesium , 2.1 parts of manganese, 0.5 parts of chromium.

[0025] The preparation method of novel aluminum alloy comprises the following steps,

[0026] (1) Put the raw materials into the melting pot in proportion, heat for 6.5 hours, the heating temperature is 760°C, make it melt completely and stir evenly;

[0027] (2) fish out the residue from the melt;

[0028] (3) Pour the treated melt into the casting film, and cool it at room temperature to form an aluminum alloy.

[0029] Test results:

[0030] The aluminum alloy material has a Brinell hardness of 105 (HBW5 / 250).

[0031] The solidus temperature of the aluminum alloy material is 880°C.

[0032] The aluminum alloy material has an elongation limit Rp0.2 of 425 MPa and an elongation at break of 10...

Embodiment 2

[0035] A novel aluminum alloy material, comprising the following components and parts by weight, 110 parts of aluminum, 10 parts of nickel-titanium alloy, 1.5 parts of iron, 2 parts of copper, 0.74 parts of silicon, 2.5 parts of zinc, 0.25 parts of magnesium, 2.8 parts of manganese, and 0.4 parts of chromium.

[0036] The preparation method of novel aluminum alloy comprises the following steps,

[0037] (1) Put the raw materials into the melting pot in proportion, heat for 6.5 hours, the heating temperature is 680°C, make it melt completely and stir evenly;

[0038] (2) fish out the residue from the melt;

[0039] (3) Pour the treated melt into the casting film, and cool it at room temperature to form an aluminum alloy.

[0040] The aluminum alloy material has a Brinell hardness of 93 (HBW5 / 250).

[0041] The solidus temperature of the aluminum alloy material is 720°C.

[0042] The aluminum alloy material has an elongation limit Rp0.2 of 405 MPa and an elongation at break ...

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PUM

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Abstract

The invention provides a novel aluminum alloy material and a preparation method thereof. The novel aluminum alloy material comprises the following components of, by weight, 75-120 parts of aluminum, 5-20 parts of nickel-titanium alloys, 1.5-2.2 parts of iron, 1-2 parts of copper, 0.1-1.4 parts of silicon, 1.5-2.5 parts of zinc, 0.05-0.35 part of magnesium, 0.8-4.5 parts of manganese and 0.2-0.5 part of chromium. The novel aluminum alloy material has obvious crack reduction and excellent elongation, and the elongation and impact toughness can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy materials, and in particular relates to a novel aluminum alloy material and a preparation method. Background technique [0002] Alloys are the most widely used non-ferrous metal materials in industry, and are widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries. [0003] The density of pure aluminum is small, about one-third of that of iron, with low melting point, high plasticity, easy processing, and can be made into various profiles and plates. It has good corrosion resistance, but the strength of pure aluminum is very low, so it is not suitable for Used as structural material. In comparison, alloys have relatively high strength, approaching or surpassing high-quality steel, good plasticity, can be processed into various profiles, and have excellent electrical conductivity, thermal conductivity and corrosion resistance. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22F1/04
CPCC22C21/00C22C1/026C22C1/03C22F1/04
Inventor 王长迎
Owner TIANJIN HENGYATONG MACHINERY CO LTD
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