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High-performance aluminum alloy material modified by osmium carbonyl complex and preparation method thereof

A technology of aluminum alloy materials and complexes, applied in the field of high-performance aluminum alloy materials and their preparation, can solve the problems of expensive high-temperature smelting equipment, high melting point, and large heat loss, so as to avoid high-temperature smelting equipment, shorten the process flow, reduce Effects of Various Defects

Inactive Publication Date: 2016-02-10
GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, through the existing Al-noble metals, it can be seen that this kind of alloy has unusual room temperature plasticity, mechanical properties and excellent creep resistance, so that it can be used in harsh environments such as high temperature and high wear. The industry and automobile industry have higher and higher requirements for aluminum alloys, so precious metals are also added to the composition of aluminum alloys, and for precious metals, their melting points are high, and the heat loss is large when they are directly added, while the master alloy for smelting Al-precious metals also more difficult
[0006] Since the melting point of Os is as high as 3045.0°C, it is difficult to prepare aluminum-osmium alloys by ordinary smelting methods, requiring expensive high-temperature smelting equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Step 1: Select a group of elements according to the formula, in terms of weight ratio: the alloy composition is Cu: 2.6%, Mg: 1.7%, Mn: 0.15%, osmium carbonyl complex modifier Os(CO) 5 It is 0.065% of the total charge, and the rest is Al and unavoidable trace impurities. The unavoidable trace impurities, Si and Fe are all impurities brought by the raw materials, and the content of impurity elements is: single ≤ 0.05%, total ≤0.10%, Si: ≤1.0%, Fe: ≤1.0%; the total amount of alloy prepared is 1000kg, then the weight of each substance required is calculated as: Cu: 26kg, Mg: 17kg, Mn: 1.5kg, Os(CO) 5 : 0.65kg, Al: 954.85kg;

[0033] 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;

[0034] Step 3: Add the alloy elements selected in Step 1 according to the proportion of the formula to completely dissolve and melt them, and st...

Embodiment 2

[0039] Step 1: Select a group of elements according to the formula, and in terms of weight ratio: the alloy composition is Cu: 3.45%, Mg: 2.15%, Zn: 0.05%, Mn: 0.175%, Ti: 0.1%, Be: 0.005%, Osmium carbonyl complex modifier Os(CO) 5 It is 0.0575% of the total charge, and the rest is Al and unavoidable trace impurities, among which unavoidable trace impurities, Si and Fe are impurities brought by raw materials, and the content of impurity elements is: single ≤ 0.05%, total ≤0.10%, Si: ≤1.0%, Fe: ≤1.0%; the total amount of alloy prepared is 1000kg, then the weight of each substance required is calculated as: Cu: 34.5kg, Mg: 21.5kg, Zn: 0.5 kg, Mn: 1.75kg, Ti: 1kg, Be: 0.05kg, Os(CO) 5 : 0.575kg, Al: 940.13kg;

[0040] All the other steps are the same as in Example 1.

Embodiment 3

[0042] Step 1: Select a group of elements according to the formula, and in terms of weight ratio: the alloy composition is Cu: 4.3%, Mg: 2.6%, Zn: 0.1%, Mn: 0.2%, Ti: 0.2%, Be: 0.01%, Osmium carbonyl complex modifier Os(CO) 5It is 0.05% of the total charge, and the rest is Al and unavoidable trace impurities. The unavoidable trace impurities, Si and Fe are all impurities brought by the raw materials, and the content of impurity elements is: single ≤ 0.05%, total ≤0.10%, Si: ≤1.0%, Fe: ≤1.0%; the total amount of alloy prepared is 1000kg, then the weight of each substance required is calculated as: Cu: 43kg, Mg: 26kg, Zn: 1kg, Mn : 2kg, Ti: 2kg, Be: 0.1kg, Os(CO) 5 : 0.5kg, Al: 925.4kg.

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Abstract

The invention discloses a high-performance aluminum alloy material modified by an osmium carbonyl complex and a preparation method thereof. In terms of weight percentage, the composition of the alloy is: Cu: 2.6-4.3%, Mg: 1.7-2.6%, Zn: ≤0.1 %, Mn: 0.15~0.2%, Ti: ≤0.2%, Be: ≤0.01%, Si: ≤1.0%, Fe: ≤1.0%, osmium carbonyl complex modifier Os(CO)5 is 0.05% of the total charge ~0.065%, the rest is Al and unavoidable trace impurities, and the content of impurity elements is: single ≤ 0.05%, total ≤ 0.1%, the invention avoids adding in the form of master alloy, effectively simplifies the process and reduces Cost of production.

Description

technical field [0001] The invention relates to an aluminum alloy material and a preparation method thereof, in particular to a high-performance aluminum alloy material modified by an osmium carbonyl 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/12C22C1/02C22C1/06
Inventor 门三泉车云张中可陈凯
Owner GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES