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High-infrared-emissivity ceramic and preparation method thereof

An infrared emissivity and ceramic technology, applied in the field of high infrared emissivity ceramics and their preparation, can solve the problems of limiting the application range of materials, and achieve the effects of high utilization rate, light color and high infrared emissivity

Active Publication Date: 2017-05-10
东兴市红石谷食品饮料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in most existing cordierite system infrared radiation materials, transition metal oxides are generally added, and the materials are mostly black or dark, which limits the application range of materials

Method used

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  • High-infrared-emissivity ceramic and preparation method thereof
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preparation example Construction

[0024] The preparation method of the high infrared emissivity ceramics of the embodiment of the present invention comprises:

[0025] Step 1: Mix the ingredients

[0026] The magnesium-rich metallurgical nickel slag is ball milled for 3-5 hours under the condition of a rotating speed of 300-500 rpm. After ball milling, 30-40% magnesium-rich metallurgical nickel slag and 30-35% Al 2 o 3 , 25-32% SiO 2 , 3-7% of Y 2 o 3 and 2-5% K 2 CO 3 Mix to obtain embryo body raw materials.

[0027] Further, preferably, 32-35% of magnesium-rich metallurgical nickel slag, 30.2-30.5% of Al 2 o 3 , 28.7-30.3% SiO 2 , 3-6% of Y 2 o 3 and 3-4% K 2 CO 3 mix.

[0028] The preparation method of high infrared emissivity ceramics in the embodiment of the present invention uses magnesium-rich metallurgical nickel slag as a raw material, and can utilize iron, manganese, nickel and other elements inherent in magnesium-rich metallurgical nickel slag without adding transition metal oxides ,...

Embodiment 1

[0038] Take by weighing the raw material of 100g high infrared emissivity ceramics, take by weight percentage 32% magnesium-rich metallurgical nickel slag, 30.5% Al 2 o 3 , 28.7% SiO 2 , 3.8%Y 2 o 3 and 5%K 2 CO 3 , that is, 32g magnesium-rich metallurgical nickel slag, 30.5g Al 2 o 3 , 28.7g SiO 2 , 3.8g Y 2 o 3 and 5g K 2 CO 3 . Among them, the magnesium-rich metallurgical nickel slag comes from the solid waste slag discharged during the nickel alloy smelting process. In a preferred embodiment of the present invention, the magnesium-rich metallurgical nickel slag comprises SiO 2 、Al 2 o 3 and MgO, by weight percent, SiO 2 Accounting for 55% of the total magnesium-rich metallurgical nickel slag, Al 2 o 3 It accounts for 8% of the total amount of magnesium-rich metallurgical nickel slag, MgO accounts for 30% of the total amount of magnesium-rich metallurgical nickel slag, and the balance is iron, manganese, nickel and other elements and other solid impurities...

Embodiment 2

[0042] Take by weighing the raw material of 100g high infrared emissivity ceramics, take by weight percentage 32.8% magnesium-rich metallurgical nickel slag, 30.2% Al 2 o 3 , 29.5% SiO 2 , 5.3%Y 2 o 3 and 2.2%K 2 CO 3 , that is, 32.8g magnesium-rich metallurgical nickel slag, 30.2gAl 2 o 3 , 29.5g SiO 2 , 5.3g Y 2 o 3 and 2.2g K 2 CO 3 . Among them, the magnesium-rich metallurgical nickel slag comes from the solid waste slag discharged during the nickel alloy smelting process. In a preferred embodiment of the present invention, the magnesium-rich metallurgical nickel slag comprises SiO 2 、Al 2 o 3 and MgO, by weight percent, SiO 2 Accounting for 50% of the total magnesium-rich metallurgical nickel slag, Al 2 o 3 It accounts for 5% of the total amount of magnesium-rich metallurgical nickel slag, MgO accounts for 40% of the total amount of magnesium-rich metallurgical nickel slag, and the balance is iron, manganese, nickel and other elements and other solid imp...

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Abstract

The invention provides high-infrared-emissivity ceramic and a preparation method thereof, and belongs to the field of inorganic nonmetallic functional ceramic materials. The high-infrared-emissivity ceramic is prepared from the following raw materials in percentage by weight: 30 to 40 percent of high-magnesium metallurgical nickel residues, 30 to 35 percent of Al2O3, 25 to 32 percent of SiO2, 3 to 7 percent of Y2O3 and 2 to 5 percent of K2CO3. According to the high-infrared-emissivity ceramic and the preparation method thereof, the high-magnesium metallurgical nickel residues are adopted as a raw material, so that wastes are utilized, and in addition, the advantages of high infrared emissivity, relatively lighter color, strong bending strength and the like can be achieved under the condition of no additional transition metal oxides.

Description

technical field [0001] The invention relates to the field of inorganic non-metallic functional ceramic materials, in particular to a high infrared emissivity ceramic and a preparation method thereof. Background technique [0002] Infrared radiation ceramic material is a new type of functional material with a wide range of uses, and has been successfully applied in the field of infrared radiation heating and energy saving. In recent years, infrared radiation ceramic materials applied at room temperature have also attracted widespread attention, and have broad application prospects in the fields of medical care and new building materials. Among them, cordierite has the advantages of low thermal expansion coefficient, low dielectric constant, small dielectric loss, and high chemical stability. As a natural mineral, it has been extensively studied, and it has attracted people's attention for its excellent infrared radiation performance. However, transition metal oxides are gene...

Claims

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Application Information

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IPC IPC(8): C04B35/195C04B35/622C04B35/64
CPCC04B35/195C04B35/622C04B35/62204C04B35/64C04B2235/3201C04B2235/3217C04B2235/3225C04B2235/3418C04B2235/6562C04B2235/661C04B2235/96
Inventor 韩朋德姜晓萍潘婷施庆乐郭伟程俊华诸华军张长森焦宝祥吴其胜
Owner 东兴市红石谷食品饮料有限公司
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