High-strength aluminum alloy metamorphosing through carbonyl W (CO) 6 and preparation method thereof

A technology for aluminum alloy materials and carbonyl compounds, which is applied in the field of high-performance aluminum alloy materials and their preparation, can solve the problems of product quality influence, mixing of harmful elements, discount of metamorphism, etc., so as to reduce smelting links, save energy and reduce melting point, Avoid wasteful effects

Inactive Publication Date: 2013-06-05
GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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  • Summary
  • 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 t

Method used

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Embodiment 2

[0038] Step 1: Select a group of elements according to the formula, by weight ratio: the alloy composition is Cu: 1.75%, Mn: 0.6%, Mg: 0.9%, Ni: 0.4%, carbonyl compound W (CO) 6 The modificator is 0.02% of the total amount, among which the unavoidable trace impurities, Si and Fe are impurities brought by the raw materials, and the content of impurity elements is: single ≤ 0.05%, total ≤ 0.15%, 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: 17.5kg, Mn: 6kg, Mg: 9kg, Ni: 4kg, W(CO) 6 : 0.2kg, Al: 963.3kg;

[0039] All the other steps are with embodiment 1, wherein carbonyl compound W(CO) 6 The molecular crystal modifier is 90 mesh.

Embodiment 3

[0041] Step 1: Select a group of elements according to the formula, by weight ratio: the alloy composition is Cu: 2.0%, Mn: 0.7%, Mg: 1.0%, Ni: 0.5%, carbonyl W(CO) 6 The modifier is 0.01% of the total amount, the rest is Al and unavoidable trace impurities, among which 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 ≤ 0.15%, 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: 20kg, Mn: 7kg, Mg: 10kg, Ni: 5kg, W(CO) 6 : 0.1kg, Al: 957.9kg;

[0042] All the other steps are with embodiment 1, wherein carbonyl compound W(CO) 6 The molecular crystal modifier is 150 mesh.

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Abstract

The invention discloses a high-strength aluminum alloy metamorphosing through carbonyl W (CO) 6 and a preparation method of the high-strength aluminum alloy metamorphosing through the carbonyl W (CO) 6. The high-strength aluminum alloy metamorphosing through the carbonyl W (CO) 6 comprises, by weight, 1.5%-2.0% of copper, 0.5%-0.7% of manganese, 0.8%-1.0% of magnesium, 0.3%-0.5% of nickel, <=1.0% of silicon, <=1.0% of ferrum, carbonyl W (CO) 6 accounting for 0.01%-0.03 of the total amount, and the balance aluminum and unavoidable trace impurities. In addition, a single trace impurity accounts for <=0.05% of the total amount and the total trace impurities account for <=0.15%. The aluminum material has better a performance and a higher impurity degree and the preparation method is simple.

Description

technical field [0001] The invention relates to an aluminum alloy material and a preparation method thereof, in particular to a carbonyl compound W(CO) 6 A metamorphic high-performance aluminum alloy material 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, ...

Claims

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Application Information

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IPC IPC(8): C22C21/16C22C1/06
Inventor 张中可车云门三泉
Owner GUIZHOU HUAKE ALUMINUM MATERIAL ENG TECH RES
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