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A kind of manufacturing method of aluminum alloy hollow ingot for nuclear reactor

A technology of nuclear reactor and manufacturing method, which is applied in the field of manufacturing aluminum alloy hollow ingot materials, can solve the problems of low casting yield and unqualified chemical composition, achieve high yield, solve low yield, and reduce waste products of chemical composition Effect

Active Publication Date: 2017-03-15
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • 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 yield of aluminum alloy hollow ingots produced by the existing method due to unqualified chemical composition, and to provide a method for manufacturing aluminum alloy hollow ingots for nuclear reactors

Method used

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specific Embodiment approach 1

[0010] Embodiment 1: This embodiment is an aluminum alloy hollow ingot for a nuclear reactor, which is composed of Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti, B, Cd, L and Al; the aluminum alloy for a nuclear reactor The mass fraction of Si in the alloy hollow ingot is 0.60%-1.00%, the mass fraction of Fe is less than 0.18%, the mass fraction of Cu is 0.30%-0.50%, the mass fraction of Mn is less than 0.003%, and the mass fraction of Mg is 0.70%- 1.20%, the mass fraction of Ni is less than 0.002%, the mass fraction of Zn is less than 0.02%, the mass fraction of Ti is less than 0.008%, and the mass fraction of B is less than 3×10 -4 %, the mass fraction of Cd is less than 3×10 -4 %, the mass fraction of Li is less than 6×10 -4 %, the balance is Al.

[0011] The aluminum alloy hollow ingot for nuclear reactor obtained according to the ratio of raw materials in this embodiment forms the main strengthening phase Mg due to Mg and Si 2 Si, after adding Cu, can make up for the strength loss ca...

specific Embodiment approach 2

[0013] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the mass fraction of Si in the aluminum alloy hollow ingot for nuclear reactor is 0.80%, the mass fraction of Fe is less than 0.18%, and the mass fraction of Cu is 0.35% %, the mass fraction of Mn is less than 0.003%, the mass fraction of Mg is 1.00%, the mass fraction of Ni is less than 0.002%, the mass fraction of Zn is less than 0.02%, the mass fraction of Ti is less than 0.008%, and the mass fraction of B is less than 3×10 -4 %, the mass fraction of Cd is less than 3×10 -4 %, the mass fraction of Li is less than 6×10 -4 %, the balance is Al. Others are the same as the first embodiment.

specific Embodiment approach 3

[0014] Specific implementation mode three: This implementation mode is a method for manufacturing an aluminum alloy hollow ingot for a nuclear reactor, which is specifically completed according to the following steps:

[0015] 1. Weighing: According to the mass fraction of Si is 0.60% ~ 1.00%, the mass fraction of Fe is less than 0.18%, the mass fraction of Cu is 0.30% ~ 0.50%, the mass fraction of Mn is less than 0.003%, and the mass fraction of Mg is 0.70 %~1.20%, the mass fraction of Ni is less than 0.002%, the mass fraction of Zn is less than 0.02%, the mass fraction of Ti is less than 0.008%, and the mass fraction of B is less than 3×10 -4 %, the mass fraction of Cd is less than 3×10 -4 %, the mass fraction of Li is less than 6×10 -4 % and the balance are Al and weigh high-purity aluminum ingots, master alloys Al-Si, master alloys Al-Cu and metal Mg;

[0016] 2. Smelting: first smelt pure aluminum and wash the furnace, then add the high-purity aluminum ingots, intermedi...

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Abstract

The invention relates to an aluminum alloy hollow ingot material and a manufacturing method for the aluminum alloy hollow ingot material, in particular to an aluminum alloy hollow ingot for a nuclear reactor and a manufacturing method for the aluminum alloy hollow ingot. The problem that the chemical components of an aluminum alloy hollow ingot manufactured through an existing method are not qualified, so that the yield of cast ingots is low is solved. The aluminum alloy hollow ingot for the nuclear reactor is composed of Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti, B, Cd, L and Al. The manufacturing method includes the steps of firstly, weighing high-purity aluminum ingots, intermediate alloy Al-Si, intermediate alloy Al-Cu and metal Mg; secondly, carrying out smelting to obtain alloy melt; and thirdly, carrying out refining and casting to obtain the aluminum alloy hollow ingot for the nuclear reactor. The aluminum alloy hollow ingot for the nuclear reactor and the manufacturing method for the aluminum alloy hollow ingot have the advantages that the yield of the aluminum alloy hollow ingot, manufactured through the method, for the nuclear reactor is as high as 85%, and the problem of low yield of ingots manufactured through the existing method is resolved. The manufacturing method is mainly used for manufacturing the aluminum alloy hollow ingot for the nuclear reactor.

Description

technical field [0001] The invention relates to a method for manufacturing an aluminum alloy hollow ingot material. Background technique [0002] The hollow ingot for nuclear reactor manufactured by the existing method uses ordinary aluminum ingot as raw material, the trace elements in the chemical composition of the ingot are difficult to control, often produce waste products of chemical composition, and the internal quality is unstable, which cannot fully meet the user's use standard , and its ingot yield is only 63%. Contents of the invention [0003] The purpose of the present invention is to solve the problem of low yield of aluminum alloy hollow ingots produced by the existing method due to unqualified chemical composition, and to provide a method for manufacturing aluminum alloy hollow ingots for nuclear reactors. [0004] An aluminum alloy hollow ingot for a nuclear reactor is composed of Si, Fe, Cu, Mn, Mg, Ni, Zn, Ti, B, Cd, L and Al; the mass fraction of Si in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C1/03C22C1/06
Inventor 殷云霞黄岩超才智刘超刘义虎吴晓旭滕志贵陈雷高宝亭
Owner NORTHEAST LIGHT ALLOY CO LTD
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