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Oxidation-resistant high energy density magnesium alloy for 500-600 degrees and process thereof

A high energy storage density, magnesium alloy technology, applied in the field of alloys, can solve the problem of not having extremely excellent alloy varieties, and achieve the effect of isolating the external oxidizing atmosphere

Inactive Publication Date: 2019-01-25
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is a very urgent demand for medium and high temperature heat storage alloys at home and abroad, but so far there are no extremely good alloy varieties, so that the medium and high temperature heat storage system can run stably for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A magnesium alloy with oxidation resistance and high energy storage density for 500-600 degrees Celsius and its technology. In terms of weight percentage, the composition of the alloy is Li: 2.0wt.%, Al: 5.0wt.%, In: 1.0wt.%, Zn: 2.5wt.%, B: 0.1wt.%, Sn: 1.0wt.% , Bi: 5.0wt.%, Sb: 2.4wt.%, and the balance is magnesium. The above-mentioned 500-600°C magnesium alloy with high oxidation resistance and high energy storage density and its process include the following smelting steps (under protection conditions): melting the above-mentioned raw materials in a crucible resistance furnace, wherein the active elements are in the form of an intermediate alloy form to join. During the melting process, graphite crucible and argon gas are used to protect; the crucible is heated to 720-800 degrees to form an alloy melt, and the electromagnetic stirring effect is used to fully stir for about 15 minutes. The alloy melt is kept at 700°C for 15 minutes and then cast into a water glass...

Embodiment 2

[0021]A magnesium alloy with oxidation resistance and high energy storage density for 500-600 degrees Celsius and its technology. In terms of weight percentage, the composition of the alloy is Li: 3.0wt.%, Al: 6.0wt.%, In: 1.2wt.%, Zn: 2.8wt.%, B: 0.2wt.%, Sn: 1.2wt.% , Bi: 6.0wt.%, Sb: 2.5wt.%, and the balance is magnesium. The above-mentioned 500-600°C magnesium alloy with high oxidation resistance and high energy storage density and its process include the following smelting steps (under protection conditions): melting the above-mentioned raw materials in a crucible resistance furnace, wherein the active elements are in the form of an intermediate alloy form to join. During the melting process, graphite crucible and argon gas are used to protect; the crucible is heated to 720-800 degrees to form an alloy melt, and the electromagnetic stirring effect is used to fully stir for about 15 minutes. The alloy melt is kept at 700°C for 15 minutes and then cast into a water glass ...

Embodiment 3

[0024] A magnesium alloy with oxidation resistance and high energy storage density for 500-600 degrees Celsius and its technology. In terms of weight percentage, the composition of the alloy is Li: 2.5wt.%, Al: 5.2wt.%, In: 1.1wt.%, Zn: 2.6wt.%, B: 0.1wt.%, Sn: 1.0wt.% , Bi: 5.8wt.%, Sb: 2.4wt.%, and the balance is magnesium. The above-mentioned 500-600°C magnesium alloy with high oxidation resistance and high energy storage density and its process include the following smelting steps (under protection conditions): melting the above-mentioned raw materials in a crucible resistance furnace, wherein the active elements are in the form of an intermediate alloy form to join. During the melting process, graphite crucible and argon gas are used to protect; the crucible is heated to 720-800 degrees to form an alloy melt, and the electromagnetic stirring effect is used to fully stir for about 15 minutes. The alloy melt is kept at 700°C for 15 minutes and then cast into a water glass...

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Abstract

The invention discloses oxidation-resistant high energy density magnesium alloy for 500-600 degrees and a process thereof. The alloy comprises the following components by weight: Li: 2.0-3.0%, Al: 5.0-6.0%, In: 1.0-1.2%, Zn: 2.5-2.8%, B: 0.10.2%, Sn: 1.0-1.2%, Bi: 5.0-6.0%, Sb: 2.4-2.5% and the balance magnesium. A multi-element near-eutectic alloy solution for the oxidation-resistant high energydensity magnesium alloy for 500-600 degrees in the field of alloy energy storage is provided. Alloy melt has excellent oxidation resistance, thermal cycle performance and thermophysical performance. The alloy can effectively overcome the defect of innovation shortage of novel alloy materials in the field of energy storage, and is expected to obtain great market value while solving industrial problems.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a magnesium alloy. Background technique [0002] Heat storage materials can absorb external heat energy and store it inside, and can release energy when the ambient temperature is lower than the material temperature. Heat is stored as sensible heat, latent heat, or both. Sensible heat is stored by the temperature rise of the heat storage medium, while latent heat storage is the heat absorbed or released by the phase change of the material. The process of repeated release of sensible heat and latent heat constitutes the basic working form of energy storage. At present, the main sources of thermal energy are solar energy and industrial waste heat. These two main energy sources are not coordinated in space and time, and belong to intermittent energy. Energy storage technology can well alleviate the contradiction between energy demand and energy time and space incoordination, and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/02C22C23/00C22C1/03
CPCC22C1/03C22C23/00C22C23/02
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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