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Manufacturing method for aluminum alloy plate for freight train carriage

A technology of aluminum alloy sheet material and manufacturing method, which is applied in the field of manufacturing aluminum alloy sheet materials for freight train carriages, can solve problems such as unstable product performance, poor product performance, rough process, etc., and achieve good product performance, stable product performance, good uniformity

Active Publication Date: 2015-01-07
GUANGXI LIUZHOU YINHAI ALUMINUM IND
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  • Summary
  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for manufacturing aluminum alloy plates for freight train carriages with rigorous technology, good product performance and stable product performance, so as to solve the problems of rough technology, poor product performance and unstable product performance in the prior art

Method used

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Embodiment Construction

[0019] The present invention will be further described below in combination with specific embodiments.

[0020] The invention provides a method for manufacturing an aluminum alloy plate for a freight train carriage, comprising the following steps:

[0021] A. Melting, refining and degassing: Feed and smelt according to the various elemental components of the 5083 aluminum alloy ingot production. The temperature is controlled between 735-745°C, and then transferred to the holding furnace for refining. The refining temperature is 720-730°C. The refining gas is a mixture of nitrogen and chlorine. The refining time is 40 minutes. The addition amount is 0.2%, and after online degassing with chlorine-argon mixed gas, an aluminum material with Na%≤0.0005% and hydrogen content≤0.25ml / 100gAl can be obtained;

[0022] Preferably, the melt temperature is 710°C, 720°C or 730°C. If the melt temperature is too low, it is not conducive to the dissolution of alloy elements and the discharge ...

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Abstract

The invention relates to a manufacturing method for an aluminum alloy plate for a freight train carriage. The manufacturing method for the aluminum alloy plate for the freight train carriage comprises steps of smelting, refining and degassing, casting, saw cutting and milling, heating, hot rolling, roller type straightening and transecting and precise saw cutting. The manufacturing method for the aluminum alloy plate for the freight train carriage has the advantages of being preciseness in technology, corrosion resistant in prepared product, good in product performance, good in uniformity and stable in product performance.

Description

【Technical field】 [0001] The invention relates to a method for manufacturing an aluminum alloy plate, in particular to a method for manufacturing an aluminum alloy plate for freight train carriages. 【Background technique】 [0002] Lightweight has become the development trend of rail transportation. Aluminum freight cars are one of the effective ways to lighten freight cars. The aluminum alloy plates used for freight train carriages have the following disadvantages in the prior art: the rough process easily leads to surface scratches. Severe scratches and aluminum sticking, poor quality of hot-rolled billets, product performance—especially unstable anti-corrosion performance, poor uniformity, product performance needs to be improved. 【Content of invention】 [0003] The purpose of the present invention is to provide a method for manufacturing aluminum alloy plates for freight train carriages with rigorous technology, good product performance and stable product performance, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB21C37/02
Inventor 许磊周滨刘栩文建平李严法刘熠李江宇汪尚元陈卫嘉毛记德蒋婷
Owner GUANGXI LIUZHOU YINHAI ALUMINUM IND
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