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Zirconium-micro-alloyed 6013 type aluminium alloy and preparation method thereof

A micro-alloying and aluminum alloy technology is applied in the field of new 6000 series aluminum alloy and its preparation, zirconium micro-alloying 6013 type aluminum alloy and its preparation field, which can solve problems such as restricting development, and achieve good corrosion resistance and hardness. High and broad application prospects

Active Publication Date: 2010-08-18
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, so far, there is no 6013 aluminum alloy with independent intellectual property rights available in our country, which restricts the development of my country's aerospace, weaponry and other industries to a certain extent.

Method used

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  • Zirconium-micro-alloyed 6013 type aluminium alloy and preparation method thereof
  • Zirconium-micro-alloyed 6013 type aluminium alloy and preparation method thereof
  • Zirconium-micro-alloyed 6013 type aluminium alloy and preparation method thereof

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Experimental program
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Embodiment 1

[0025] like figure 1 , 2 , 3, 4 shown.

[0026] A zirconium microalloyed 6013 aluminum alloy, the preparation method of which is:

[0027] Take 53kg aluminum alloy as an example.

[0028] First, 40.479kg of A00 grade pure Al (composition: 99.79% Al, 0.14% Fe, 0.04% Si, all components of the present invention are represented by mass percentage, the same below) is melted, and then 1.01kg of Al-Cu master alloy (49.62% Al, 50.12% Cu, 0.15% Fe, 0.11% Si) (the loss rate of Cu is about 6.25%), 5.628kg Al-Si master alloy (89.62% Al, 10.21% Si, 0.17% Fe) (the loss rate of Si About 5%), 3.168kg Al-Mn master alloy (89.73% Al, 10.02% Mn, 0.19% Fe, 0.06% Si) (the loss rate of Mn is about 10%), 1.57kg Al-Zr master alloy (95.69 %Al, 4.11% Zr, 0.20% Fe, 0.10% Si) (the loss rate of Zr is about 8%), 0.251kg pure Zn (the loss rate of Zn is about 8%), 0.894kg pure Mg (the loss rate of Mg about 20%), said master alloy can be purchased directly from the market, or can be self-prepared by conve...

Embodiment 2

[0033] A zirconium microalloyed 6013 aluminum alloy, the preparation method of which is:

[0034] Take 53kg aluminum alloy as an example.

[0035]First melt 40.25kg A00 grade pure Al (composition: 99.79% Al, 0.14% Fe, 0.04% Si) and then add 1.07kg Al-Cu (49.62% Al, 50.12% Cu, 0.15% Fe, 0.11% Si) master alloy (Cu loss rate is about 6.25%), 6.39kg Al-Si (89.62% Al, 10.21% Si, 0.17% Fe) master alloy (Si loss rate is about 5%), 2.56kg Al-Mn (89.73% Al , 10.02% Mn, 0.19% Fe, 0.06% Si) master alloy (the loss rate of Mn is about 10%), 1.75kg Al-Zr master alloy (95.69% Al, 4.11% Zr, 0.20% Fe, 0.10% Si) (the loss rate of Zr is about 8%), 0.18kg pure Zn (the loss rate of Zn is about 8%), 0.80kg pure Mg (the loss rate of Mg is about 20%), and described master alloy can be directly obtained from market It can be purchased on the Internet, or it can be prepared by the conventional method. During the melting process, the former intermediate alloy or metal is melted and then the latter int...

Embodiment 3

[0040] A zirconium microalloyed 6013 aluminum alloy, the preparation method of which is:

[0041] Take 53kg aluminum alloy as an example.

[0042] First melt 40.74kg A00 grade pure Al (composition: 99.79% Al, 0.14% Fe, 0.04% Si) and then add 0.98kg Al-Cu (49.62% Al, 50.12% Cu, 0.15% Fe, 0.11% Si) master alloy (Cu loss rate is about 6.25%), 4.92kg Al-Si (89.62% Al, 10.21% Si, 0.17% Fe) master alloy (Si loss rate is about 5%), 3.78kg Al-Mn (89.73% Al , 10.02% Mn, 0.19% Fe, 0.06% Si) master alloy (the loss rate of Mn is about 10%), 1.28kg Al-Zr master alloy (95.69% Al, 4.11% Zr, 0.20% Fe, 0.10% Si) (the loss rate of Zr is about 8%), 0.33kg pure Zn (the loss rate of Zn is about 8%), 0.97kg pure Mg (the loss rate of Mg is about 20%), and described master alloy can be directly obtained from market It can be purchased on the Internet, or it can be prepared by the conventional method. During the melting process, the former intermediate alloy or metal is melted and then the latter in...

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Abstract

The invention discloses a zirconium-micro-alloyed 6013 type aluminium alloy mainly comprising aluminium (Al), magnesium (Mg), silicon (Si), copper (Cu), manganese (Mn), zinc (Zn), ferrum (Fe) and zirconium (Zr). The preparation method of the alloy comprises the following steps of: firstly, sequentially adding Al-Cu intermediate alloy, Al-Si intermediate alloy, Al-Mn intermediate alloy, Al-Zr intermediate alloy, pure Zn and pure Mg after melting pure Al, adding hexachloroethane for refining after melting the mixture, and then deslagging and casting into ingots after standing and preserving heat for 5-10 min; and secondly, carrying out back annealing, forging and pressing and the aftertreatment of solid solution aging treatment on the alloy cast into the ingots. The hardness of the alloy can achieve 149.5-152.0 HV, the intercrystalline corrosion resistance of the alloy is not lower than the fourth level through determining according to the national standard GB / T 7998-2005 (method for determining the intercrystalline corrosion of the aluminium alloy), the exfoliation corrosion resistance of the alloy is in the PB level through determining according to the national standard GB / T 22639-2008 (an exfoliation corrosion test method of an aluminium alloy processing product), and the aluminium alloy can be widely applied to the fields of modern aerospace, weaponry and the like and has wide application prospect.

Description

technical field [0001] The invention relates to an aluminum alloy and a preparation method thereof, in particular to a novel 6000 series aluminum alloy and a preparation method thereof, in particular to a zirconium microalloyed 6013 aluminum alloy and a preparation method thereof. Background technique [0002] In recent years, in order to have the competitiveness in the high-end aluminum alloy market, major aluminum factories in the world have launched aluminum alloys of different grades that are suitable for the same parts and have similar properties. The 6013 or 6056 (similar composition and properties, developed by different companies) aluminum alloys of the 6000 series are aluminum alloys with good comprehensive properties. Compared with 6061 aluminum alloys, their strength is more than 15% higher and they have similar corrosion resistance and weldability. . The good comprehensive performance of 6013 aluminum alloy makes it have good application prospects in many fields...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/03C22F1/05
Inventor 许晓静王宏宇赵梓皓成城潘励宋涛张福豹吴桂潮王彬程晓农
Owner JIANGSU UNIV
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