CN1257051A - Unfired chromium corundum refractory material products - Google Patents
Unfired chromium corundum refractory material products Download PDFInfo
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- CN1257051A CN1257051A CN 98121085 CN98121085A CN1257051A CN 1257051 A CN1257051 A CN 1257051A CN 98121085 CN98121085 CN 98121085 CN 98121085 A CN98121085 A CN 98121085A CN 1257051 A CN1257051 A CN 1257051A
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- chromium
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- corundum
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Abstract
The present invention discloses an unifired chromium corundum refractory material product. It is characterized by that it uses electromelted white corundum as main body, corundum content is 30-99%, has chromium oxide or chromium-bearing other compound odded, its added quantity is 1-30%, and uses comples phosphate as anchoring agent,a nd adopts the processes of press-forming and drying to prepare the refractory product or does not adopt press-forming and drying process to directly prepare powdered refractory product. Said invention can be extensively used for smelting ferrous material, its technological process is simple, has no need of high-temp. firing, can save energy source, reduce production cost andshorten production period.
Description
The present invention relates to the fire resistive material product technical field, particularly a kind of unfired chromium corundum refractory material products.
At present, corundum products is the high grade refractory that is applied to field of smelting, but because corundum products manufacturing process complexity, the production difficulty is big, need high temperature to burn till, its firing temperature is about 1800 ℃, and thermal shock resistance is poor, has therefore limited its use range and can not bring into play its high temperature resistant, anti abrasive high-performance fully.
The objective of the invention is to overcome above-mentioned refractory materials shortcoming, for field of smelting provides a kind of unfired chromium corundum refractory material products, this refractory materials complete processing is simple, does not need high temperature to water, and has very high normal temperature, middle gentle hot strength and good thermal shock resistance.
Unfired chromium corundum refractory material products of the present invention, it is characterized in that: based on fused white corundum, corundum content is 30-99%, add chromium sesquioxide or contain other compound of chromium, add-on is 1-30%, is the wedding agent preparation to add 5% complexing phosphoric acid salt, repressed moulding, dry and make fire resistive material product about 100 ℃, perhaps make the loose refractory goods without shaping and drying.
In above-mentioned unfired chromium corundum refractory material products, also can add following any one compound to adapt to different application field refractory materials, can add 2-10% (weight percent, as follows) zircon sand, the baddeleyite of 1-10%, the zirconium dioxide of 1-20%, the boron nitride of 1-10%, the silicon carbide of 2-30%, the graphite of 2-15%, the norbide of 2-15% silicon nitride or 1-10%, to add 5% complexing phosphoric acid salt is the wedding agent preparation, repressed moulding, drying forms fire resistive material product under 100 ℃ of conditions, perhaps is made into the shape goods that loose without the compression moulding drying.
Above-mentioned wedding agent also can be complexing aluminum phosphate, aluminium dihydrogen phosphate or be wedding agent with the phosphoric acid salt of alkali-free material.
Fire performances such as the physical and chemical index of unfired chromium corundum refractory material products of the present invention are improved largely than corundum products, and can improve 2-3 doubly than corundum products work-ing life, and manufacturing process is simple, does not need high temperature to burn till.Have very high normal temperature, middle temperature, hot strength and good thermal shock resistance, can use unfired chromium corundum refractory material manufactures: refractory products such as square brick, nozzle brick, slide brick, lining brick, also can be mixed with loose refractory and use, be widely used in ferrous metal smelting.The present invention also has save energy, reduces cost, shortens the characteristics of production cycle.
Embodiment 1:
Manufacture unfired chromium corundum refractory material products, the white fused alumina particulate material is melted in power taking, granularity 1-3mm62%, white alundum powder is melted in power taking, and granularity＜0.074mm 31%, gets zirconium sesquioxide powder 7%, add complexing chrome-alumina phosphate wedding agent 5%, mix the back pressure forming,, be finished product through 80 ℃ of dryings 5 hours.The unburned Al-Cr-Zr refractory material of above proportioning is applicable to making slide plate, the mouth of a river, lining brick etc.
Embodiment 2:
Manufacture unfired chromium corundum refractory material products, white fused alumina particulate material 62%, granularity 1-3mm are melted in power taking; Get Graphite Powder 99 5%, granularity＞100 orders; White alundum powder 16%, granularity＜0.074mm are melted in power taking; Get chromium sesquioxide powder 7%, granularity＜0.074mm; Get titanium dioxide zirconium powder 10%, granularity＜0.074mm; Add complexing chrome-alumina phosphate wedding agent 5%, mix the back pressure forming,, be finished product through 80 ℃ of dryings 5 hours.
Embodiment 3:
Manufacture unfired chromium corundum refractory material products, white fused alumina particulate material 40%, granularity 1-3mm are melted in power taking; Get silicon-carbide particle 22%, granularity 1-3mm; Fused white corundum powder 21%, granularity＜0.074mm; Get chromium sesquioxide powder 7%, granularity＜0.074mm; Titanium dioxide zirconium powder 10%, granularity＜0.074mm; Add complexing chrome-alumina phosphate wedding agent 5%, mix the back pressure forming,, be finished product through 80 ℃ of dryings 5 hours.
Embodiment 4:
Manufacture unfired chromium corundum refractory material products, white fused alumina particulate material 62%, granularity 1-3mm are melted in power taking; Get chromium sesquioxide powder 7%, granularity＜0.074mm; Get titanium dioxide zirconium powder 10%, granularity＜0.074mm; Get boron nitride powder 5%, granularity＜0.074mm; Fused white corundum powder 16%, granularity＜0.074mm; Add complexing chrome-alumina phosphate wedding agent 5%, mix the back pressure forming,, be finished product through 80 ℃ of dryings 5 hours.
Claims (3)
1. unfired chromium corundum refractory material products of the present invention, it is characterized in that: based on fused white corundum, corundum content is 30-99%, add chromium sesquioxide or contain other compound of chromium, add-on is 1-30%, is the wedding agent preparation with complexing phosphoric acid salt, repressed moulding, dry and make fire resistive material product about 100 ℃, perhaps make the loose refractory goods without shaping and drying.
2. unfired chromium corundum refractory material products according to claim 1, it is characterized in that: in unfired chromium corundum refractory material products, also can add following any one compound to adapt to different application field refractory materials, can add graphite, the 2-15% silicon nitride of silicon carbide, the 2-15% of boron nitride, the 2-30% of zirconium dioxide, the 1-10% of baddeleyite, the 1-20% of zircon sand, the 1-10% of 2-10%, the norbide of 1-10%, be wedding agent with complexing phosphoric acid salt.
3. unfired chromium corundum refractory material products according to claim 1 and 2, its wedding agent also can use complexing aluminum phosphate, aluminium dihydrogen phosphate or be wedding agent with the phosphoric acid salt of alkali-free material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98121085 CN1257051A (en) | 1998-12-11 | 1998-12-11 | Unfired chromium corundum refractory material products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98121085 CN1257051A (en) | 1998-12-11 | 1998-12-11 | Unfired chromium corundum refractory material products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1257051A true CN1257051A (en) | 2000-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98121085 Pending CN1257051A (en) | 1998-12-11 | 1998-12-11 | Unfired chromium corundum refractory material products |
Country Status (1)
| Country | Link |
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| CN (1) | CN1257051A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343187B (en) * | 2008-08-20 | 2011-05-11 | 宜兴市张泽工业炉材料厂 | High-temperature flame-proof pouring material and preparation method |
| CN103073225A (en) * | 2012-12-27 | 2013-05-01 | 西安航天远征流体控制股份有限公司 | Method for prolonging service life of metal burner |
| CN105036770A (en) * | 2015-07-09 | 2015-11-11 | 长兴泓矿炉料有限公司 | Magnesium-aluminum refractory material and preparation method therefor |
| CN107721397A (en) * | 2017-11-01 | 2018-02-23 | 安徽马钢耐火材料有限公司 | A kind of pink fused alumina chamotte and preparation method thereof |
| CN108161773A (en) * | 2016-12-07 | 2018-06-15 | 株式会社迪思科 | Vitrified bonded grinding tool |
| CN108863318A (en) * | 2017-06-06 | 2018-11-23 | 浙江德清炜烨新材料有限公司 | A kind of intermediate frequency furnace material for repairing |
| CN112745108A (en) * | 2020-12-07 | 2021-05-04 | 北京金隅通达耐火技术有限公司 | High-density chromium corundum brick for hazardous waste disposal rotary kiln |
| CN116903352A (en) * | 2023-08-08 | 2023-10-20 | 中钢集团洛阳耐火材料研究院有限公司 | Environment-friendly aluminum chrome brick for copper-nickel smelting furnace |
-
1998
- 1998-12-11 CN CN 98121085 patent/CN1257051A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343187B (en) * | 2008-08-20 | 2011-05-11 | 宜兴市张泽工业炉材料厂 | High-temperature flame-proof pouring material and preparation method |
| CN103073225A (en) * | 2012-12-27 | 2013-05-01 | 西安航天远征流体控制股份有限公司 | Method for prolonging service life of metal burner |
| CN105036770A (en) * | 2015-07-09 | 2015-11-11 | 长兴泓矿炉料有限公司 | Magnesium-aluminum refractory material and preparation method therefor |
| CN108161773A (en) * | 2016-12-07 | 2018-06-15 | 株式会社迪思科 | Vitrified bonded grinding tool |
| CN108161773B (en) * | 2016-12-07 | 2022-03-11 | 株式会社迪思科 | Ceramic bond grinding tool |
| CN108863318A (en) * | 2017-06-06 | 2018-11-23 | 浙江德清炜烨新材料有限公司 | A kind of intermediate frequency furnace material for repairing |
| CN107721397A (en) * | 2017-11-01 | 2018-02-23 | 安徽马钢耐火材料有限公司 | A kind of pink fused alumina chamotte and preparation method thereof |
| CN112745108A (en) * | 2020-12-07 | 2021-05-04 | 北京金隅通达耐火技术有限公司 | High-density chromium corundum brick for hazardous waste disposal rotary kiln |
| CN116903352A (en) * | 2023-08-08 | 2023-10-20 | 中钢集团洛阳耐火材料研究院有限公司 | Environment-friendly aluminum chrome brick for copper-nickel smelting furnace |
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