Preparation method of aluminium alloy section with high abrasion resistance

An aluminum alloy profile, high wear-resistant technology, applied in the field of aluminum alloy material processing, can solve the problems that the wear resistance cannot meet the actual requirements, and achieve the effects of good thermal stability, excellent wear resistance and high hardness

Inactive Publication Date: 2014-04-16
WUHU WANRUN MACHINERY
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AI Technical Summary

Problems solved by technology

In recent years, with the rapid development of science and technology and industrial economy, transmission system parts have higher and higher requirements on the wear resistance of aluminum alloy materials, but the wear resistance of existing aluminum alloys cannot meet the actual requirements

Method used

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Embodiment Construction

[0014] A method for preparing a high wear-resistant aluminum alloy profile, comprising the following steps:

[0015] (1) Meet the following requirements according to the mass percentage of elements: Si 0.5-0.8, Fe 0.3-0.6, Cu 1.8-2.4, Mg 2.5-3.5, Mn 0.4-0.7, Cr 0.25-0.35, Zn 4.2-5.6, Ti 0.1-0.2 . Heat to 730°C, wait until the charge is completely melted, stir for 30 minutes, remove slag, detect and adjust the alloy composition; then add refining agent for refining, the refining temperature is 720°C, and the refining time is 20 minutes. After refining, let it stand for 20 minutes. For casting, the casting temperature is 710°C, and the casting speed is 16mm / min;

[0016] (2) Homogenize the slab: first heat up to 495°C at 250°C / h, hold for 10 hours, then cool down to 260°C at 150°C / h, hold for 3 hours, then heat up to 470°C at 100°C / h, Insulate for 8 hours, then cool down to 330°C at 80°C / h, hold for 4 hours, then raise the temperature to 480°C at 70°C / h, hold for 8...

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Abstract

The invention discloses a preparation method of an aluminium alloy section with high abrasion resistance. The aluminium alloy section comprises the following elements by mass percent: 0.5-0.8 percent of Si, 0.3-0.6 percent of Fe, 1.8-2.4 percent of Cu, 2.5-3.5 percent of Mg, 0.4-0.7 percent of Mn, 0.25-0.35 percent of Cr, 4.2-5.6 percent of Zn, 0.1-0.2 percent of Ti, 0.3-0.6 percent of Zr, 0.2-0.4 percent of Co, 0.15-0.25 percent of Ge, 0.01-0.02 percent of Ir, 0.005-0.015 percent of B, 0.02-0.03 percent of Sc, 0.01-0.03 percent of Gd, and the balance of Al. The aluminium alloy section prepared by the method is excellent in performance, high in strength and hardness, good in tenacity, thermal stability and corrosion resistance, stable in quality, and long in service life, and completely meets the requirements for use performance of parts of a transmission system.

Description

technical field [0001] The invention relates to a preparation method of a high wear-resistant aluminum alloy profile, belonging to the technical field of aluminum alloy material processing. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. Because of its low density and relatively high strength, which is close to or exceeds high-quality steel, it has good plasticity, excellent electrical conductivity, thermal conductivity, and corrosion resistance. Processed into various profiles, widely used in machinery manufacturing, transportation machinery, power machinery and aviation industry, etc. In recent years, with the rapid development of science and technology and industrial economy, transmission system parts have higher and higher requirements on the wear resistance of aluminum alloy materials, but the wear resistance of existing aluminum alloys cannot meet the actual requirements. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C21/10
Inventor 吴贤春
Owner WUHU WANRUN MACHINERY
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