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Aluminum alloy cast rod with scandium and manganese elements and smelting and casting method of aluminum alloy cast rod

A technology of aluminum alloy and elements, which is applied in the smelting method and casting field of aluminum alloy cast rods, can solve the problems of unstable mechanical properties of finished products, coarse grains, etc., achieve less defects, refine grains, and improve casting efficiency Effect

Inactive Publication Date: 2018-12-21
赣州铝业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the process of smelting and casting Al-Zn-Mg-Cu aluminum alloy, if the method is improperly selected, many unnecessary defects will be caused in the cast rod, mainly reflected in the unstable mechanical properties of the finished product, coarse grains, etc. Therefore, it is very necessary to invent a suitable casting method to reduce the defects of cast rods for the smelting field of Al-Zn-Mg-Cu aluminum alloys

Method used

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Embodiment Construction

[0028] Embodiments of the present invention will be described in detail below.

[0029] An aluminum alloy cast rod with scandium and manganese elements added in this embodiment includes the following components in mass percentage: Zn: 10.95-11.55%, Mg: 2.1-2.3%, Mn: 0.45-0.55%, Sc: 0.1 -0.2%, Cu: 1.5-2.5%, Ti: 0.014-0.016%, B: 0.014-0.016%, Be: 0.003-0.004%, Zr: 0.07-0.09%, and the balance is Al.

[0030] The following is a ratio of the applicant in the production process: Zn: 11%, Mg: 2.2%, Mn: 0.5%, Sc: 0.15%, Cu: 2%, Ti: 0.015%, B: 0.015%, Be: 0.004%, Zr: 0.08%, and the balance is Al.

[0031] In the process of casting aluminum alloy cast rods, the smelting of aluminum alloy is an extremely important step. In this embodiment, the method for smelting aluminum alloy cast rods with scandium and manganese elements includes the following steps:

[0032] A. Ingredients: Calculate the amount of aluminum alloy raw materials and prepare raw materials according to the ratio;

[00...

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Abstract

The invention discloses an aluminum alloy cast rod with scandium and manganese elements. The aluminum alloy cast rod is prepared from, by mass, 10.95-11.55% of Zn, 2.1-2.3% of Mg, 0.45-0.55% of Mn, 0.1-0.2% of Sc, 1.5-2.5% of Cu, 0.014-0.016% of Ti, 0.014-0.016% of B, 0.003-0.004% of Be, 0.07-0.09% of Zr and the balance Al. The aluminum alloy cast rod has few defects, the material performance is improved, and the requirements of the aviation and ship fields for mechanical performance and corrosion resistance of aluminum alloy are met. The rare earth scandium element is added in the matching ratio, and the strength, hardness, welding performance and corrosion resistance of the aluminum alloy rod are improved. The invention further discloses a smelting method of the aluminum alloy cast rod.The uniformity degree of ingredients in the aluminum alloy can be improved, the stability and compactness of the produced aluminum rod are improved, and redundant impurities are removed. The inventionfurther discloses a casting method of the aluminum alloy cast rod. The casting efficiency can be improved, and energy consumption and waste water are reduced.

Description

【Technical field】 [0001] The invention relates to an aluminum alloy cast rod added with scandium and manganese elements, and also relates to a melting method and a casting method of the aluminum alloy cast rod added with scandium and manganese elements. 【Background technique】 [0002] Al-Zn-Mg-Cu series aluminum alloy is a high-strength deformable superhard aluminum alloy that can be strengthened by heat treatment. and other fields. [0003] However, in the process of smelting and casting Al-Zn-Mg-Cu aluminum alloy, if the method is not selected properly, many unnecessary defects will be caused in the cast rod, mainly reflected in the unstable mechanical properties of the finished product, coarse grains, etc. Therefore, it is very necessary to invent a suitable casting method to reduce the defects of cast rods for the smelting field of Al-Zn-Mg-Cu aluminum alloys. [0004] Scandium is one of the rare earth elements. Adding a small amount of scandium in the smelting process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C1/03C22C1/06B22D11/00
CPCB22D11/003C22C1/026C22C1/03C22C1/06C22C21/10
Inventor 张志刚
Owner 赣州铝业股份有限公司
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