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Far-infrared ceramic material and manufacturing method thereof

A technology of far-infrared ceramics and manufacturing methods, applied in the field of ceramic materials, can solve the problems of far-infrared radiation bands, unsatisfactory radiation efficiency, and low thermal stability, and achieve the effects of stable bands, high thermal stability, and high radiation efficiency

Active Publication Date: 2015-05-27
佛山中科产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most active heating far-infrared radiation ceramics are far-infrared ceramics based on cordierite and mullite ceramics. Although they can meet some applications, they still have far-infrared radiation bands and unsatisfactory radiation efficiency. The problem of low stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 860 grams of fused silica powder (amorphous silicon dioxide), 90 grams of crystalline zirconia powder, 30 grams of crystalline neodymium oxide, and 20 grams of crystalline europium oxide. Put the weighed raw materials into the ball mill together, add 1000 ml of deionized water, and ball mill until the maximum particle size reaches 2 microns, pour the ball milled slurry into the basin, put it in the oven for drying, and pulverize to obtain the powder . Add 100 grams of 3% PVA (polyvinyl alcohol) aqueous solution to the powder, stir evenly, briquetting, crushing, and passing through a 40-mesh sieve to obtain a granulated powder. The granulated powder is put into a mold of 80mm×120mm, and pressed under a pressure of 150 kg / cm2. After drying the formed body, put it into a high-temperature electric furnace, heat it at 1230° C. for 30 minutes and burn it, take it out after cooling, and obtain a far-infrared ceramic sample. The sample has a far-infrared emissivity of 0...

Embodiment 2

[0021] Weigh 480 grams of fused silica powder (amorphous silica), 350 grams of quartz powder (crystalline silica), 130 grams of zirconia, 10 grams of neodymium oxide, and 30 grams of europium oxide. Put the weighed raw materials into the ball mill together, add 800 ml of deionized water, and ball mill until the maximum particle size reaches 5 microns, then pour the ball milled slurry into the basin to adjust the moisture and fluidity of the slurry, and vacuum to eliminate air bubbles , to obtain the slurry for ceramic slip casting. Pour the ceramic grouting material into the gypsum mold and let it stand for a period of time. After the ceramic body is separated from the gypsum mold, the mold is demoulded, and the demoulded ceramic body is put into an oven for drying. Put the dried body into a high-temperature electric furnace, heat it at 1260° C. for 90 minutes and burn it, take it out after cooling, and obtain a far-infrared ceramic sample. In the wave band from 2.5 microns t...

Embodiment 3

[0023] Weigh 900 grams of fused silica powder (amorphous silica), 60 grams of crystalline zirconia powder, 30 grams of crystalline neodymium oxide, 10 grams of crystalline europium oxide, 20 grams of crystalline chromium chloride, and crystalline cobalt oxide 15 grams. Put the weighed raw materials into a ball mill, add 1200 ml of deionized water, and ball mill until the maximum particle size reaches 1.5 microns, pour the ball mill slurry into a basin, put it in an oven to dry, and crush to obtain ceramic powder body. Add 100 grams of 3% PVA aqueous solution to the ceramic powder, stir evenly, briquetting, crushing, and passing through a 40-mesh sieve to obtain a granulated powder. The granulated powder is put into a mold, and pressed under a pressure of 150 kg / cm2 to obtain a ceramic green body of 80mm×120mm×10mm. After drying the shaped green body, put it into a high-temperature electric furnace, heat it at 1200°C for 60 minutes for firing, take it out after cooling, and o...

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PUM

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Abstract

The invention provides a far-infrared ceramic material and a manufacturing method thereof, and relates to the field of ceramic materials and the technical field of infrared rays. The manufacturing method comprises the steps as follows: step 1) material weighing and mixing: weighing raw materials in percentage by weight as follows: 75-90% of silicon dioxide, 6-13% of an oxide or salt of zirconium, 1-3% of an oxide or salt of neodymium, 1-3% of an oxide or salt of europium, 0-2% of an oxide or salt of chromium, 0-2.5% of an oxide or salt of cobalt and 0-3% of silicon boride, mixing and crushing the raw materials until the particle size is smaller than 5.0 mum, and preparing into a mixture; step 2) forming: forming the mixture to obtain a green body; step 3) sintering: putting the green body in a kiln for sintering at the temperature of 1160-1260 DEG C for 60-120 min to obtain the far-infrared ceramic material. The far-infrared ceramic material has the advantages of stable far-infrared radiation wave band, high radiation efficiency, high thermal stability and the like and can be better applied to frequent and rapid cooling and heating environments.

Description

technical field [0001] The invention relates to the field of ceramic materials in inorganic non-metallic materials and the field of infrared technology, in particular to special ceramic materials with far-infrared radiation function and its manufacturing technology. Background technique [0002] With the development of science and technology, infrared technology has been widely used. At present, infrared ceramic materials, as an important material in infrared technology, have been widely used in industrial heating and drying, food processing, medical care, textile products, household appliances, chemical production, national defense products, environmental protection and other fields. Aiming at different application fields, many infrared ceramics with specific functions and their preparation technologies have been developed. The Chinese patent application document with application number 200910181142.1 discloses a method using dolomite, tourmaline and zeolite as raw material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/14C04B35/622
Inventor 蔡晓峰于伟东
Owner 佛山中科产业技术研究院
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