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Rare earth aluminum alloy rod for high-speed railway

An aluminum alloy rod and aluminum alloy technology, applied in the field of aluminum alloy rods, can solve the problems of low tensile strength and elongation, increased production cost, unqualified strength, etc., to improve mechanical properties, increase corrosion resistance, production low cost effect

Inactive Publication Date: 2016-06-15
HEFEI YIKE ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the cable field of the machining industry, after the traditional aluminum rod or aluminum alloy rod is manufactured, due to the limitation of the structure of the material, the performance of the material during processing is affected, and its tensile strength and elongation are low. , the tensile strength is only 190Mpa, and the elongation is only 15% or even lower. In the subsequent wire drawing process, it causes early broken wires or unqualified strength, which not only causes waste of raw materials, but also increases production costs. No rare earth elements are added. The aluminum alloy rod is not conducive to the application in high-speed rail

Method used

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  • Rare earth aluminum alloy rod for high-speed railway
  • Rare earth aluminum alloy rod for high-speed railway
  • Rare earth aluminum alloy rod for high-speed railway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A rare earth aluminum alloy rod for high-speed rail, the aluminum alloy rod is composed of the following components in parts by weight: 95.5 parts of aluminum, 0.8 parts of iron, 0.2 parts of copper, 0.03 parts of silicon, 0.025 parts of chromium, 0.02 parts of cerium, 0.015 parts of lanthanum, 0.01 part of neodymium, 0.01 part of praseodymium, and 0.008 part of magnesium.

[0043] Its preparation method comprises the following steps:

[0044] S1, smelting: heat the aluminum ingot to 750°C, and after it is completely melted to form aluminum liquid, weigh iron, copper, silicon, chromium, cerium, lanthanum, neodymium, praseodymium, and magnesium according to the proportion, and add them to aluminum Liquid, fully stirred and mixed to obtain aluminum alloy liquid;

[0045] S2, casting:

[0046] a. Degassing and refining: put the aluminum alloy liquid in S1 into a degasser, and perform degassing and refining at a temperature of 740°C;

[0047] b. Casting: heat the aluminu...

Embodiment 2

[0051] A rare earth aluminum alloy rod for high-speed rail, the aluminum alloy rod is composed of the following components in parts by weight: 96.2 parts of aluminum, 0.9 parts of iron, 0.22 parts of copper, 0.035 parts of silicon, 0.03 parts of chromium, 0.022 parts of cerium, 0.017 parts of lanthanum, 0.012 parts of neodymium, 0.012 parts of praseodymium, and 0.0085 parts of magnesium.

[0052] Its preparation method comprises the following steps:

[0053] S1, smelting: heat the aluminum ingot to 752°C, and after it is completely melted to form aluminum liquid, weigh iron, copper, silicon, chromium, cerium, lanthanum, neodymium, praseodymium, and magnesium according to the proportion, and add them to aluminum Liquid, fully stirred and mixed to obtain aluminum alloy liquid;

[0054] S2, casting:

[0055] a. Degassing and refining: put the aluminum alloy liquid in S1 into a degasser, and perform degassing and refining at a temperature of 742°C;

[0056] b. Casting: heat the...

Embodiment 3

[0060] A rare earth aluminum alloy rod for high-speed rail, the aluminum alloy rod is composed of the following components in parts by weight: 97 parts of aluminum, 1 part of iron, 0.25 parts of copper, 0.04 parts of silicon, 0.035 parts of chromium, 0.025 parts of cerium, 0.02 parts of lanthanum, 0.015 parts of neodymium, 0.015 parts of praseodymium, and 0.009 parts of magnesium.

[0061] Its preparation method comprises the following steps:

[0062] S1, smelting: heat the aluminum ingot to 755°C, and after it is completely melted to form aluminum liquid, weigh iron, copper, silicon, chromium, cerium, lanthanum, neodymium, praseodymium, and magnesium according to the proportion, and add them to aluminum Liquid, fully stirred and mixed to obtain aluminum alloy liquid;

[0063] S2, casting:

[0064] a. Degassing and refining: put the aluminum alloy liquid in S1 into a degasser, and perform degassing and refining at a temperature of 745°C;

[0065] b. Casting: heat the alumin...

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PUM

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Abstract

The invention discloses a rare earth aluminum alloy rod for a high-speed railway. The rare earth aluminum alloy rod is composed of, by weight, 95.5-98.5 parts of aluminum, 0.8-1.2 parts of iron, 0.2-0.3 part of copper, 0.03-0.05 part of silicon, 0.025-0.045 part of chromium, 0.02-0.03 part of cerium, 0.015-0.025 part of lanthanum, 0.01-0.02 part of neodymium, 0.01-0.02 part of praseodymium, and 0.008-0.01 part of magnesium. A preparation method is simple, a process is good, and production cost is low; after the rare earth elements are added, heat resistance and plasticity of the aluminum alloy rod are better, and tensile strength and hardness are higher; the rare earth aluminum alloy rod is suitable for being applied to high-speed railway construction.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy rods, in particular to a rare earth aluminum alloy rod for high-speed rail. Background technique [0002] Aluminum alloy is one of the most widely used non-ferrous metal materials in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of science and technology and industrial economy, the demand for aluminum alloys is increasing, and the research on aluminum alloys is also in-depth. The wide application of aluminum alloys has promoted the development of aluminum alloys in high-speed rail. [0003] As an aluminum alloy rod for high-speed rail, the commonly used aluminum alloy rod should be drawn to 0.10-0.12mm. At present, in the cable field of the machining industry, after the traditional aluminum rod or aluminum alloy rod is manufactured, due to the limitation of the structure of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22F1/04
CPCC22C21/00C22F1/04
Inventor 郑立国李娜叶平
Owner HEFEI YIKE ALUMINUM