Thermal stability energy storage material and preparation method thereof

An energy storage material and thermal stability technology, applied in the field of materials, can solve problems such as weak ability to resist temperature fluctuations, reduce the application range of materials, and prone to thermal damage, etc., and achieve strong ability to resist temperature fluctuations and excellent mechanical processing performance Good, easy to use and process effect

Inactive Publication Date: 2020-04-28
NANJING ZHONGYING NEW NANOMATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a thermally stable energy storage material and a preparation method thereof to solve the problem that the thermal stability of the energy storage material produced in the prior art is relatively poor, which will lead to the heat resistance of the material. Poor resistance, the ability of the material to resist temperature fluctuations under the influence of temperature is weak, so it is prone to thermal damage, which greatly reduces the application range of the material and greatly reduces the practicability of the problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A heat-stable energy storage material includes, in parts by weight: Si: 55 parts; Al: 35 parts; Fe: 2 parts; Mg: 3 parts; Mn: 1.5 parts; Cr: 0.2 parts.

[0018] The preparation method of this thermally stable energy storage material comprises the following steps:

[0019] Step a: Select and screen the raw materials required for the preparation of energy storage materials, remove the impurities of the raw materials, and then weigh the raw materials with the required weight through an electronic scale, then put the raw materials into the oven respectively, bake for 10 minutes, and then Remove to cool and set aside.

[0020] Step b: Melting Al and Si separately, wherein the temperature of the melting furnace for melting aluminum is set at 1500 degrees Celsius, the temperature of the melting furnace for melting Si is set at 600 degrees Celsius, and the melting time is set at 20 minutes.

[0021] Step c: Pour the smelted Al and Si into a mixing reactor for mixing, set the i...

Embodiment 2

[0026] A thermally stable energy storage material includes, in parts by weight: Si: 42 parts; Al: 30 parts; Fe: 3 parts; Mg: 2.5 parts; Mn: 0.5 parts;

[0027] The preparation method of this thermally stable energy storage material comprises the following steps:

[0028] Step a: first select and screen the raw materials required for the preparation of energy storage materials, remove the impurities of the raw materials, then weigh the raw materials with the required weight through an electronic scale, and then put the raw materials into the oven respectively, and bake them for 20 minutes. Then remove to cool and set aside.

[0029] Step b: Melting Al and Si separately, wherein the temperature of the melting furnace for melting aluminum is set at 1600 degrees Celsius, the temperature of the melting furnace for melting Si is set at 680 degrees Celsius, and the melting time is set at 30 minutes.

[0030] Step c: Pour the smelted Al and Si into a mixing reactor for mixing, set th...

Embodiment 3

[0035] A heat-stable energy storage material includes, in parts by weight: Si: 55 parts; Al: 22 parts; Fe: 5 parts; Mg: 2 parts; Mn: 1.2 parts; Cr: 0.8 parts.

[0036] The preparation method of this thermally stable energy storage material comprises the following steps:

[0037] Step a: first select and screen the raw materials required for the preparation of energy storage materials, remove the impurities of the raw materials, and then weigh the raw materials with the required weight through an electronic scale, then put the raw materials into the oven respectively, and bake them for 15 minutes. Then remove to cool and set aside.

[0038] Step b: Melting Al and Si separately, wherein the temperature of the melting furnace for melting aluminum is set at 1550 degrees Celsius, the temperature of the melting furnace for melting Si is set at 640 degrees Celsius, and the melting time is set at 25 minutes.

[0039] Step c: Pour the smelted Al and Si into a mixing reactor for mixing...

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PUM

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Abstract

The invention discloses a thermal stability energy storage material and a preparation method thereof. The energy storage material comprises the following components, in parts by weight, of 35-55 partsof Si; 25-35 parts of Al; 2-5 parts of Fe; 1-3 parts of Mg; 0.5-1.5 parts of Mn; and 0.2-0.8 part of Cr, and the preparation method comprises the following steps of step a, material selecting and proportioning; step b, independent smelting of different parts; and step c, material mixing. The content of silicon in the energy storage material prepared through the method is 50% or above, so that theenergy storage material has good thermal stability, good wear resistance, good corrosion resistance and high mechanical strength, the energy storage material is high in temperature fluctuation resistance, thermal damage is prone to happening, the application range of the material is greatly widened, the machining performance is good, the practicability is greatly improved, use and machining of auser are facilitated, people can conveniently transfer and carry the energy storage material, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to a thermally stable energy storage material and a preparation method thereof, belonging to the technical field of materials. Background technique [0002] Al-Si alloy is an ideal energy storage material. It is used in solar thermal power generation energy storage system. The microstructure of Al-Si alloy only slightly changes during the repeated melting-solidification thermal cycle, which affects the heat storage performance. The impact is very limited. Casting has excellent and stable heat storage performance in the long-term thermal cycle process, which can be applied to high-temperature solar thermal power generation thermal storage systems, and has good high-temperature oxidation resistance in solar thermal power generation systems. Using scanning electron microscope and energy spectrometer to observe and analyze the surface of the sample, discuss the high-temperature oxidation performance of the aluminum-silicon alloy, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C28/00B22C9/24
CPCB22C9/24C22C1/02C22C28/00
Inventor 王奇苏杨
Owner NANJING ZHONGYING NEW NANOMATERIALS
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