High-strength corrosion-resistant weldable aluminum-magnesium-erbium-zirconium alloy wide sheet and preparation method thereof

A zirconium alloy and aluminum alloy melt technology, applied in the direction of manufacturing tools, heat treatment equipment, furnace types, etc., can solve the problems of low strength and post-weld strength, and achieve excellent post-weld strength, excellent yield strength, and excellent strength performance Effect

Inactive Publication Date: 2020-10-30
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of relatively low strength and post-weld strength of existing domestic high-performance aluminum alloy plates, and provide a high-strength corrosion-resistant weldable aluminum-magnesium bait-zirconium alloy wide sheet and its preparation method

Method used

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  • High-strength corrosion-resistant weldable aluminum-magnesium-erbium-zirconium alloy wide sheet and preparation method thereof

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Experimental program
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Effect test

specific Embodiment approach 1

[0015] Specific implementation mode 1: In this implementation mode, a high-strength corrosion-resistant weldable aluminum-magnesium bait-zirconium alloy wide-width thin plate contains elements and mass fractions: Mg is 5.0% to 6.5%, Mn is 0.6% to 0.9%, and Er is 0.15% %~0.20%, Zr 0.10%~0.20%, Ti 0.03%~0.15%, Be 0.0005%~0.005%, Cu﹤0.05%, Zn﹤0.05%, Si﹤0.15%, Fe﹤0.20%, Na <0.0005%, K<0.0015% and Ca<0.0005%, and the mass fraction of Fe is greater than that of Si, and the balance is Al.

specific Embodiment approach 2

[0016] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: the elements and mass fractions contained in the aluminum-magnesium bait-zirconium alloy wide sheet: 6.2% for Mg, 0.8% for Mn, 0.18% for Er, and 0.18% for Zr 0.10%, Ti 0.03%, Be 0.0025%, Cu﹤0.05%, Zn﹤0.05%, Si﹤0.15%, Fe﹤0.20%, Na<0.0005%, K<0.0015%, and Ca<0.0005%, and The mass fraction of Fe is greater than that of Si, and the balance is Al.

[0017] Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0018] Specific implementation mode three: In this implementation mode, a method for preparing a high-strength corrosion-resistant weldable aluminum-magnesium bait-zirconium alloy wide sheet is completed according to the following steps:

[0019] 1. Weighing: According to the mass fraction Mg is 5.0%~6.5%, Mn is 0.6%~0.9%, Er is 0.15%~0.20%, Zr is 0.10%~0.20%, Ti is 0.05%~0.15%, Be is 0.0005%~0.005%, Cu﹤0.05%, Zn﹤0.05%, Si﹤0.15%, Fe﹤0.20%, Na<0.0005%, K<0.0015%, Ca<0.0005%, and the balance is Al to weigh pure aluminum ingot , pure magnesium ingot, aluminum-manganese master alloy, aluminum-erbium master alloy, aluminum-zirconium master alloy, aluminum-titanium master alloy, aluminum-beryllium master alloy and aluminum-titanium-boron wire;

[0020] 2. Melting, casting and homogenizing annealing: Melt the pure aluminum ingot and aluminum-manganese master alloy weighed in step 1, then add aluminum bait master alloy, after intermittent stirring, add aluminum-zirconium master alloy,...

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Abstract

The invention relates to a high-strength corrosion-resistant weldable aluminum-magnesium-erbium-zirconium alloy wide sheet and a preparation method thereof, and aims to solve the problems of low strength and low post-welding strength of the existing high-performance aluminum alloy sheet in China. The method comprises the following steps of: smelting a pure aluminum ingot, a pure magnesium ingot, an aluminum-manganese intermediate alloy, an aluminum-erbium intermediate alloy, an aluminum-zirconium intermediate alloy, an aluminum-titanium intermediate alloy and an aluminum-beryllium intermediatealloy to obtain an aluminum alloy solution; and sequentially carrying out casting, homogenizing annealing, hot rolling cogging wide rolling, hot continuous rolling, uncoiling slicing, sheet annealing, tension leveling and finished product sawing on the aluminum alloy solution to obtain the aluminum-magnesium-erbium-zirconium alloy wide sheet. The invention can obtain the high-strength corrosion-resistant weldable aluminum-magnesium-erbium-zirconium alloy wide sheet and the preparation method thereof.

Description

technical field [0001] The invention relates to a high-strength corrosion-resistant weldable aluminum-magnesium bait-zirconium alloy wide thin plate and a preparation method thereof. Background technique [0002] When building high-performance ships, in order to meet the needs of users in designing and selecting materials, it is necessary to further reduce the self-weight of large ships and ships and greatly improve the carrying capacity and technical and tactical level. High-performance aluminum alloy plates replace traditional aluminum-magnesium alloy components and steel plate components. However, at present, the strength of similar domestic aluminum alloy plates cannot meet the requirements (the self-controlled value of the tensile strength of the base metal is 350MPa, and the development standard of the tensile strength after welding is 333MPa), and the strength of the plates after welding is usually relatively low, so the construction of high-performance ships The alu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/03C22C1/06C22F1/047B22D1/00B22D11/117B22D11/119C21D9/00B21C37/02
CPCB21C37/02B22D1/00B22D11/117B22D11/119C21D9/0081C22C1/026C22C1/03C22C1/06C22C21/08C22F1/002C22F1/047
Inventor 路丽英吕新宇刘显东丛福官任伟才刘洪雷孙黎明冯博王海彬葛义勇刘玉龙谭树栋佟有志吴沂哲
Owner NORTHEAST LIGHT ALLOY CO LTD
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