Preparation method of aluminum-copper alloy material

A technology of aluminum-copper alloy and titanium-aluminum alloy, which is applied in the field of aluminum alloy materials to achieve the effects of excellent machining performance, improved mechanical strength and good polishability

Inactive Publication Date: 2017-11-24
JIANGSU SUFENG MECHANICAL DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide people with an aluminum-copper alloy with high strength, excellent plasticity, good flu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1:

[0021] The aluminum-copper alloy material prepared by the present invention contains the following components in weight percentages: copper 1%, titanium 3%, iron 1.5%, silicon 0.2%, rare earth 0.4%, and the rest are aluminum; the rare earth elements are lanthanum and cerium At least one of, neodymium and yttrium.

[0022] The present invention includes the following steps:

[0023] (1) Casting:

[0024] a. According to the weight of the above components, put pure aluminum and aluminum titanium alloy with aluminum content ≥99% into a graphite crucible resistance furnace for smelting at room temperature, and add copper according to the above mass ratio when the temperature rises to 720°C Continue smelting

[0025] b. When the smelting temperature in the graphite crucible resistance furnace is increased to 720℃, then add rare earth, iron and silicon. After 6-10 minutes, stir and pour the solution in the furnace evenly into the pre-made sand mold, then cool, shake off ...

Example Embodiment

[0029] Example 2:

[0030] The aluminum-copper alloy material prepared by the present invention contains the following components in weight percentage: copper 3%, titanium 5%, iron 0.1%, silicon 1.2%, rare earth 0.8%, and the rest is aluminum; the rare earth elements are lanthanum and cerium At least one of, neodymium and yttrium.

[0031] The present invention includes the following steps:

[0032] (1) Casting:

[0033] a. According to the weight of the above components, put pure aluminum and aluminum titanium alloy with aluminum content ≥99% into a graphite crucible resistance furnace for smelting at room temperature, and add copper according to the above mass ratio when the temperature rises to 720°C Continue smelting

[0034] b. When the smelting temperature in the graphite crucible resistance furnace is raised to 740℃, add rare earth, iron and silicon. After 8 minutes, stir the solution in the furnace and pour it into the pre-made sand mold, and then make it after cooling, fallin...

Example Embodiment

[0038] Example 3:

[0039] The aluminum-copper alloy material prepared by the present invention contains the following components by weight percentage: copper 4%, titanium 3%, iron 0.4%, silicon 0.2%, rare earth 0.3%, and the rest is aluminum; the rare earth elements are lanthanum and cerium At least one of, neodymium and yttrium.

[0040] The present invention includes the following steps:

[0041] (1) Casting:

[0042] a. According to the weight of the above components, put pure aluminum and aluminum titanium alloy with aluminum content ≥99% into a graphite crucible resistance furnace for smelting at room temperature, and add copper according to the above mass ratio when the temperature rises to 720°C Continue smelting

[0043] b. When the smelting temperature in the graphite crucible resistance furnace rises to 720℃, add rare earth, iron and silicon. After 10 minutes, stir the solution in the furnace and pour it into the pre-made sand mold, and then cool, shake off the sand and cle...

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PUM

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Abstract

The invention discloses a preparation method of an aluminum-copper alloy material. The aluminum-copper alloy material comprises the following components in percentages by weight: 1-4% of copper, 2-5% of titanium, 0.1-1.5% of iron, 0.2-1.5% of silicon, less than 1% of rare earth and the balance of aluminum; and the rare earth element is at least one of lanthanum, cerium, neodymium and yttrium. The preparation method comprises the following steps: (1) casting, and (2) heat treatment. The aluminum-copper alloy material has high strength, excellent plasticity and good mobility; and after casting of the aluminum-copper alloy material, defects such as sand holes, pores and shrinkage cannot be caused easily.

Description

technical field [0001] The invention belongs to an aluminum alloy material, in particular to a preparation method of an aluminum-copper alloy material. Background technique [0002] At present, the main body of vacuum forming molds mostly uses ZL401 alloy material. ZL401 belongs to Al-Zn alloy. Due to the high content of zinc in the alloy, it has high density, poor corrosion resistance, and poor castability. , the fluidity is poor, so the material will have blisters, pores, and shrinkage defects during casting and use, and these defects can only be found after processing, which has a great negative impact on processing costs and manufacturing cycles. We combine ZL401 The characteristics of the material and its composition are analyzed. By changing the material composition, the aluminum-copper alloy is developed, and the structure of the material is changed through heat treatment to eliminate defects, increase the mechanical properties of the material, and improve the surface...

Claims

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Application Information

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IPC IPC(8): C22C21/14C22C21/00C22C1/03C22F1/04C22F1/057
CPCC22C21/14C22C1/026C22C1/03C22C21/00C22C21/003C22F1/002C22F1/04C22F1/057
Inventor 金传良厉锋
Owner JIANGSU SUFENG MECHANICAL DEV CO LTD
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