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Erbium-containing oceangraphic engineering and goods stock aluminum alloy and plate manufacturing method thereof

A technology of ocean engineering and manufacturing method, which is applied in the field of erbium-containing alloys for ocean engineering and freight vehicles and its plate manufacturing, can solve the problems of heavy weight, low strength of alloys for ocean engineering and freight vehicles, and reduce the formation of coarse phases , the effect of grain refinement

Active Publication Date: 2018-07-31
NORTHEAST LIGHT ALLOY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low weight and low strength of alloys used in ocean engineering and freight vehicles. On the basis of existing aluminum alloy materials, special chemical elements are added, so as to realize the improvement in construction and special working environments. It is required that the aluminum alloy material used has good corrosion resistance, weldability, processing performance and excellent normal temperature tensile performance, fatigue strength, low temperature performance and other properties, and provides a kind of aluminum alloy for ocean engineering and freight vehicles containing erbium and Its sheet manufacturing method

Method used

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  • Erbium-containing oceangraphic engineering and goods stock aluminum alloy and plate manufacturing method thereof
  • Erbium-containing oceangraphic engineering and goods stock aluminum alloy and plate manufacturing method thereof
  • Erbium-containing oceangraphic engineering and goods stock aluminum alloy and plate manufacturing method thereof

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specific Embodiment approach 1

[0026] Specific Embodiment 1: In this embodiment, the mass percentages of elements in an erbium-containing aluminum alloy for marine engineering and freight vehicles are as follows: Mg: 4.2% to 5.2%, Mn: 0.60% to 1.3%, Er: 0.1% to 0.23% , Zr+Ti≤0.10%~0.15%, Er:Zr=1:1~1.8:1, Si≤0.10%, Fe≤0.12%, Li+K+Na≤5ppm, Ca≤5ppm, single impurity≤0.05% , the total impurity ≤ 0.15%, the balance is Al. Impurities within this range have no effect on the performance of aluminum alloy sheets.

specific Embodiment approach 2

[0027] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the mass percentages of the elements in aluminum alloys for marine engineering and freight vehicles containing erbium are as follows: Mg: 4.8%, Mn: 0.8%, Er: 0.20%, Er : Zr=1.6:1, Zr+Ti≤0.14%, Si≤0.07%, Fe≤0.09%, Li+K+Na≤5ppm, Ca≤5ppm, single impurity≤0.05%, total impurity≤0.15%, balance for Al. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0028] Specific embodiment three: In this embodiment, a method for manufacturing an erbium-containing aluminum alloy plate for ocean engineering and freight vehicles includes the following steps:

[0029]1. Ingredients: According to the mass percentage of each element in aluminum alloys containing erbium for ocean engineering and freight vehicles, Mg: 4.2% to 5.2%, Mn: 0.60% to 1.3%, Er: 0.1% to 0.23%, Zr+Ti≤0.10 % ~ 0.15%, Er: Zr = 1:1 ~ 1.8:1, and the ratio of the balance Al to weigh pure aluminum ingots, pure magnesium ingots, aluminum-manganese master alloys, aluminum-erbium master alloys, aluminum-zirconium master alloys and aluminum-titanium Master alloys; among them, the content of alkali metals in pure aluminum ingots should not exceed 5ppm;

[0030] 2. Melting: A. Add the pure aluminum ingot, aluminum-manganese master alloy, aluminum-zirconium master alloy, and aluminum-titanium master alloy weighed in step 1 into the melting furnace. The melting temperature is 780-80...

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Abstract

The invention discloses erbium-containing oceangraphic engineering and goods stock novel corrosion-resistant aluminum alloy and a plate manufacturing method thereof, relates to aluminum alloy and a plate manufacturing method thereof and aims at finishing large-dimension plates with the plate width not lower than 3500mm and industrial production technology researches. The aluminum alloy disclosed by the invention is prepared from the elements of Mg, Mn, Er and Zr. The method comprises the steps:1, preparing materials; 2, smelting; 3, casting; 4, evenly annealing; 5, hot rolling; 6, annealing; 7, stretching; 8, saw cutting to obtain the erbium-containing oceangraphic engineering and goods stock aluminum alloy. Under the premise of meeting material corrosion resistance environment and hot processing technology performance, comprehensive performance of the prepared erbium-containing ocean engineering and goods stock aluminum alloy plate disclosed by the invention is improved by 10% or above; thus, the alloy can meet requirements of oceangraphic engineering and goods stock materials, and the plate manufacturing method disclosed by the invention can be applied to the field of aluminum alloy manufacturing.

Description

technical field [0001] The invention relates to an erbium-containing alloy for marine engineering and freight vehicles and a manufacturing method thereof. Background technique [0002] Corrosion-resistant large-size aluminum plate technology not only restricts the further development of my country's aluminum processing industry, but also seriously affects the urgent needs of the development of my country's shipbuilding, marine engineering, freight vehicles and other related industries. All thick-walled aluminum alloy plates need to be imported, and high-value-added wide-body luxury passenger ships, large and medium-sized high-speed patrol boats for maritime surveillance departments, working and living cabins on offshore platforms, helipads, and trucks used for transporting dangerous chemicals all need to use large specifications. Corrosion-resistant aluminum alloy sheet. The invention aims at improving the strength of the material without reducing the welding performance and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/06C22C1/03C22F1/047
CPCC22C1/026C22C1/03C22C1/06C22C21/08C22F1/047
Inventor 韩颖王国军任伟才王金花张岩付金来丛福官王英君王海彬张磊高鑫高新宇李彬张云龙吕丹
Owner NORTHEAST LIGHT ALLOY CO LTD
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