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Aluminum-magnesium-erbium alloy cast ingot and preparation method thereof

An alloy ingot, aluminum-magnesium technology, applied in the field of alloy and its preparation, can solve the problems of high cost, short service life, poor corrosion resistance, etc., and achieve the effect of reducing production cost and improving service life

Active Publication Date: 2010-09-15
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 provide a new aluminum-magnesium-erbium alloy ingot and its preparation method in order to solve the problems of poor corrosion resistance, low strength, short service life and high cost of existing LY12 aluminum alloy materials

Method used

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specific Embodiment approach 1

[0012] Specific embodiment 1: In this embodiment, the mass percentage of each element in the aluminum-magnesium-erbium alloy ingot is as follows: Si≤0.3%, Fe≤0.4%, Cu≤0.1%, Mn: 0.3%~0.8%, Mg: 5.8%~ 6.8%, Zn≤0.25%, Er: 0.2%~0.4%, Be: 0.0005%~0.005%, Ti≤0.10%, Zr: 0.1%~0.15%, single impurity≤0.10%, total impurity≤0.15%, the rest It is Al, and the mass percentage of Fe>the mass percentage of Si.

specific Embodiment approach 2

[0013] Specific embodiment two: this embodiment is different from specific embodiment one in that the mass percentage of each element in the aluminum-magnesium-erbium alloy ingot is as follows: Si≤0.3%, Fe≤0.4%, Cu≤0.1%, Mn: 0.5% , Mg: 6.5%, Zn≤0.25%, Er: 0.3%, Be: 0.0005%~0.005%, Ti≤0.10%, Zr: 0.1%~0.15%, single impurity≤0.10%, total impurity≤0.15%, the rest It is Al, and the mass percentage of Fe>the mass percentage of Si. Others are the same as the first embodiment.

specific Embodiment approach 3

[0014] Specific implementation mode 3: The preparation method of aluminum-magnesium-erbium alloy ingot in this embodiment is carried out according to the following steps: 1. According to the mass percentage of elements in the aluminum-magnesium-erbium alloy ingot, Si≤0.3%, Fe≤0.4%, Cu≤0.1% , Mn: 0.3%~0.8%, Mg: 5.8%~6.8%, Zn≤0.25%, Er: 0.2%~0.4%, Be: 0.0005%~0.005%, Ti≤0.10%, Zr: 0.1%~0.15% 、Single impurity≤0.10%, total impurity≤0.15%, the rest is Al, and the mass percentage of Fe>the mass percentage of Si are respectively weighed for remelting aluminum ingots, electrolytic copper, magnesium ingots, zinc ingots, aluminum-silicon master alloys, Aluminum-iron master alloy, aluminum-manganese master alloy, aluminum-erbium master alloy, aluminum-titanium master alloy, aluminum-beryllium master alloy, aluminum-titanium-boron grain refiner and zirconium composite salt; 2. Aluminum ingots and aluminum-manganese intermediates for remelting Alloys, electrolytic copper, zinc ingots, alumi...

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Abstract

The invention discloses an aluminum-magnesium-erbium alloy cast ingot and a preparation method thereof, and relates to an alloy and a preparation method thereof, which solve the problems of poor corrosion resistance, low intensity, short service life and high cost of the existing LY12 aluminum alloy material. The aluminum-magnesium-erbium alloy cast ingot is prepared from Si, Fe, Cu, Mn, Mg, Zn, Er, Be, Ti and Zr in the following steps: 1, weighing the raw materials; 2, preparing an aluminum alloy melt; and 3, sequentially filtering the aluminum alloy melt with ceramic filter disks of 30 ppi and 50 ppi, then pouring in a crystallizer, and casting into the aluminum-magnesium-erbium alloy cast ingot. The intensity of the aluminum-magnesium-erbium alloy cast ingot is at least 40 MPa higher than that of the LY12 alloy cast ingot, and the corrosion resistance of the aluminum-magnesium-erbium alloy cast ingot is one grade higher than that of the LY12 alloy cast ingot. Besides, compared with the LY12 alloy, the aluminum-magnesium-erbium alloy cast ingot can reduce the production cost by 10% because the aluminum-magnesium-erbium alloy cast ingot does not need to be subject to the solid solution and aging treatment in the subsequent hot work process.

Description

Technical field [0001] The invention relates to an alloy and a preparation method thereof. Background technique [0002] Foreign countries prohibit the import of high-performance aluminum alloy materials to our country, and the existing domestic LY12 aluminum alloy materials are far from being able to meet the requirements of weapons, aviation, aerospace, and ships. The existing LY12 aluminum alloy materials have poor corrosion resistance, Low strength, short service life and high cost. In this case, the aluminum-magnesium-erbium alloy ingot material developed can be used to assemble new fighters, strengthen national defense, and realize domestic independent guarantees. It is not only to meet the urgent need for new fighter development On demand, it can also provide optional new materials for the improvement of active aircraft types and the development of new weapons and equipment. Summary of the invention [0003] The purpose of the present invention is to solve the problems of ...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/03
Inventor 何振波王英君赵永军谢延翠郝志刚师雪飞林森赵涛李海仙刘平吕丹
Owner NORTHEAST LIGHT ALLOY CO LTD
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