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A high-strength aluminum alloy material treated with a silver-containing complex and its preparation method

A technology of aluminum alloy materials and silver complexes, applied in the field of aluminum alloy materials, can solve problems such as the discount of metamorphism, and achieve the effects of reducing comprehensive cost, improving strength and elongation performance, and improving metamorphism effect.

Inactive Publication Date: 2016-06-01
GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the production of high-performance alloys with extremely strict requirements on impurity limits, the impurities brought in by the modifier are often enough to make the chemical composition exceed the limit; at the same time, a large number of effective modifiers accumulated in the microscopic state are still in the state of single-crystal clumps. At low temperature (<800°C), it cannot be completely dissolved and melted. Only the extremely thin film layer on the surface plays a part of the metamorphic effect due to the possible alloying reaction with aluminum. , the metamorphic effect is greatly reduced

Method used

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Experimental program
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Embodiment Construction

[0031] Step 1: Select a group of elements according to the formula, by weight ratio: the alloy composition is Cu: 3.5%, Mn: 0.2%, Mg: 1.0%, modifier [Ag(NH 3 ) 2 ] Cl is 0.1% of the total mass of the charge, the rest is Al and unavoidable trace impurities, among which unavoidable trace impurities, Si and Fe are impurities brought by the raw materials, and the content of impurity elements is: single ≤ 0.05% , ≤0.15% in total, Si: ≤1.2%, Fe: ≤1.2%; the total amount of the prepared alloy is 1000kg, then the weight of each substance required is calculated as: Cu: 35kg, Mn: 2kg, Mg: 10kg , [Ag(NH 3 ) 2 ]Cl: 1kg, Al: 952.0kg;

[0032] Step 2: First add aluminum ingots or molten aluminum into the melting furnace, heat it to melt it completely and keep it warm at 700-800°C; the melting process is completed in a closed environment;

[0033] Step 3: Add the alloy elements selected in Step 1 according to the proportion of the formula to completely dissolve and melt them, and stir the...

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Abstract

The invention discloses a high strength aluminum alloy material for processing silver-bearing coordination compound. The alloy comprises, by weight, 3.5-4.0% Cu, 0.2-0.3% Mn, 1.0-1.2% Mg, <=0.05% Cr, <=0.05% Ni, <=0.15% Zn, <=0.1% Ti, <=1.2% Si, and <=1.2% Fe. Alterant [Ag (NH3)2] C1 counts 0.05-0.1% of sum mass of furnace materials. The remaining components are A1 and unavoidable trace impurities. Compared with common aluminum alloy materials, the aluminum alloy material is higher in purity and comprehensive performance.

Description

technical field [0001] The invention belongs to the field of aluminum alloy materials, and relates to a high-strength aluminum alloy material treated with a silver-containing complex and a preparation method thereof. Background technique [0002] Modification can greatly improve the comprehensive mechanical properties and chemical stability indicators of aluminum alloys, sometimes even subversively. Substances capable of altering are called modificators. [0003] At present, almost all modificators are concentrated on one technical means: to produce master alloys containing modifiable elements with aluminum as the matrix, and then add the master alloys to the melt when the aluminum alloy is smelted. [0004] This process produces two unfavorable links for energy saving: ①The melting and casting of master alloys containing high concentrations of metamorphic elements often require very high temperatures (>1000°C, such as Al-Ti-B, Al-RE, Al- Si, Al-Sc, Al-V, Al-Cr, Al-Mn, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/12C22C1/02C22C1/06
Inventor 车云门三泉张中可胥光酉
Owner GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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