5083 aluminum alloy plate for high-speed rail and production method thereof

Abstract

The invention discloses a 5083 aluminum alloy plate for high-speed rail and a production method thereof. In terms of weight percentage, the 5083 aluminum alloy plate for high-speed iron is composed of raw materials Si 0.20-0.30%, Fe 0.20-0.30%, Cu 0.03-0.07%, Mn 0.45-0.60%, Mg 5.0-5.3%, Cr 0.10-0.20% , Ti 0.015 ~ 0.03%, Zn 0 ~ 0.10% and the balance made of Al. The production method includes raw material preparation, smelting, casting, saw head washing, soaking, hot rough rolling, hot finish rolling, cold rolling, stretch correction, annealing and slice packaging. The method of the invention improves the fatigue strength, tensile strength, elongation and other properties of the 5083 aluminum alloy sheet for high-speed rail, and can fully meet the use requirements of the 5083 aluminum alloy sheet for high-speed rail.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy material processing, and in particular relates to an aluminum alloy plate for high-speed rail and a production method thereof. Background technique [0002] In recent years, with the continuous development of my country's high-speed rail technology, high-speed rail trains are also "going abroad" while being popularized in China. Due to the low density of aluminum alloy and high strength, aluminum alloy is the best material for high-speed rail to achieve light weight. Using aluminum alloy can greatly reduce the weight of high-speed rail trains. Among them, the 5083 aluminum alloy sheet is an important component of the family of aluminum alloy materials for high-speed rail. Although the high-speed rail market has broad prospects, there are only a handful of manufacturers in China that can actually produce 5083 plates that meet the performance requirements of high-speed rail. The 5083 alumin...

AI Technical Summary

Problems solved by technology

The 5083 aluminum alloy is a deformed aluminum alloy, which cannot be strengthened by heat treatment. It cannot be strengthened by heat treatment, and often has problems such as low fatigue strength, uneven tensile strength, and low elongation.

The 5083 aluminum sheet for high-speed rail produced by the existing production process cannot fully meet the performance requirements of the sheet for high-speed rail