CN104926323A - Refractory material containing silicon carbide - Google Patents
Refractory material containing silicon carbide Download PDFInfo
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- CN104926323A CN104926323A CN201510251901.2A CN201510251901A CN104926323A CN 104926323 A CN104926323 A CN 104926323A CN 201510251901 A CN201510251901 A CN 201510251901A CN 104926323 A CN104926323 A CN 104926323A
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Abstract
The invention relates to a refractory material formula, specifically to a refractory material containing silicon carbide. The formula of the refractory material containing silicon carbide comprises the following components by weight: 45 to 52 parts of raw materials of magnesium oxide and calcium oxide, 1 to 2 parts of aluminum silicate fiber with a diameter of 2 to 4 [mu]m and a length of less than or equal to 1 cm, 8 to 15 parts of silicon carbide, 12 to 14 parts of quartz sand, 0.2 to 6 parts of magnesium-zirconium alloy and 2 to 5 parts of a binder used for a carbon-contained refractory material. The prepared refractory material containing silicon carbide in the invention has the advantages of oxidation resistance, high-temperature resistance, molten-slag penetration resistance, heat-shock resistance and easy-production property.
Description
Technical field
The present invention relates to a kind of refractory materials formula, particularly a kind of refractory materials containing silicon carbide.
Background technology
Silicon carbide be by American Acheson when electric smelting diamond in 1891 is tested, a kind of carbide serendipitous in laboratory, thought it is adamantine mixture at that time by mistake, therefore be named silicon carbide, within 1893, Acheson has found out the method for industrial silicon carbide smelting, and namely the acheson furnace said of the large daily life of a family, uses till today always, take carbonaceous material as the resistance furnace of furnace core body, the mixture Formed SiClx of electrified regulation quartz SIO2 and carbon.
Refractoriness is not less than a class ceramic of 1580 DEG C.Refractoriness refers to that refractory materials cone-shaped body sample is not having in loading situation, resists high temperature action and does not soften molten centigradetemperature.But only define with refractoriness and can not describe refractory materials, 1580 DEG C is not absolute comprehensively.Now be defined as the material that all physicochemical property allow it to use in high temperature environments and be called refractory materials.Refractory materials is widely used in the industrial circles such as metallurgy, chemical industry, oil, machinofacture, silicate, power, and in metallurgical industry, consumption is maximum, accounts for 50% ~ 60% of ultimate production.Application to refractory in iron and steel, non-ferrous metal, glass, cement, pottery, petrochemical industry, machinery, boiler, light industry, electric power,
The every field of the national economy such as military project, is ensure above-mentioned industry production run and the requisite basic material of technical development, in hot industry production development, plays irreplaceable vital role.In the art, also little for the refractory materials under sour environment, the refractory materials under existing acidity substantially work-ing life not long.
Summary of the invention
The invention provides a kind of refractory materials containing silicon carbide, this material has good fire performance.
The technical solution adopted for the present invention to solve the technical problems is:
A refractory materials containing silicon carbide, is characterized in that the formula rate of the described refractory materials containing silicon carbide comprises following component by weight:
Magnesium oxide, calcium oxide raw material 45 ~ 52 parts,
The aluminum silicate fiber of diameter 2 ~ 4 μm, length≤1cm 1 ~ 2 part,
8 ~ 15 parts, silicon carbide,
Quartz sand 12 ~ 14 parts,
Mg-Zr alloys 0.2 ~ 6 part,
Binding agent for carbonic refractory material 2 ~ 5 parts.
As preferably, the granularity of described Mg-Zr alloys is less than or equal to 0.2mm; In Mg-Zr alloys, zirconium content is 3% ~ 35%, and all the other are magnesium and impurity; Mg-Zr alloys is powdery;
Described magnesium oxide, calcium oxide raw material are one or both in calcium magnesia sand or dolomite sand, or the mixture of one or both and magnesia in calcium magnesia sand or dolomite sand; Described magnesium oxide, calcium oxide raw material are divided into particle and fine powder;
Described binding agent for carbonic refractory material is one or more in the mixture of pitch liquation, tar liquid, novolac resin liquid and urotropine.
As preferably, described content >=5% containing CaO in the refractory materials of silicon carbide.
The invention has the beneficial effects as follows: adopt the refractory materials containing silicon carbide prepared by the technology of the present invention, taken into account oxidation-resistance, high thermal resistance, slag-resistant perviousness, heat-shock resistance and produceability.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.Should be appreciated that enforcement of the present invention is not limited to the following examples, any pro forma accommodation make the present invention and/or change all will fall into scope.
In the present invention, if not refer in particular to, all parts, per-cent are weight unit, and the equipment adopted and raw material etc. all can be buied from market or this area is conventional.Method in following embodiment, if no special instructions, is the ordinary method of this area.
Embodiment:
A kind of refractory materials containing silicon carbide, formula rate comprises following component by weight: magnesium oxide, calcium oxide raw material (dolomite sand) 48 parts, 10 parts, silicon carbide, the aluminum silicate fiber of diameter 2 ~ 4 μm, length≤1cm 2 parts, quartz sand 12 parts, Mg-Zr alloys 3 parts, binding agent for carbonic refractory material 3 parts.Wherein in Mg-Zr alloys powder, zirconium content is 16%, and granularity is less than 0.25mm.
The preparation method of the described refractory materials containing silicon carbide, step is as follows:
(1) preparation of pre-mixing fine powder: the dolomite sand fine powder of granularity≤0.2mm and Mg-Zr alloys powder are added in mixing machine and mixes 20min, obtain pre-mixing fine powder;
(2) preparation of pug: dolomite sand particle, quartz sand, aluminium silicate fiber peacekeeping binding agent for carbonic refractory material are added in mixing machine and mix, then add silicon carbide continuation mixing 25 minutes; Add step (1) gained pre-mixing fine powder again, mix and obtain pug after 15 minutes;
(3) shaping: step (2) gained pug to be weighed, adds in mould and use pressing machine extrusion forming, obtain adobe; Adobe toasted, top temperature is 250 DEG C, toasts 10 hours;
(4) pack: by waterproof packing after step (3) gained adobe cooling, obtain product.
This product sample detects the oxidation-resistance of 1000 DEG C × 3h by GB/T13244, and Decarburized layer mean thickness is 2.5mm.This product sample detects the heat-shock resistance of 1100 DEG C-water-cooled by YB/T376.1.The test follower head that sample stands 18 times breaks.This product is used for stopper rod of tundish, and the life-span can reach 27.5 hours.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (3)
1. the refractory materials containing silicon carbide, is characterized in that the formula rate of the described refractory materials containing silicon carbide comprises following component by weight:
Magnesium oxide, calcium oxide raw material 45 ~ 52 parts,
The aluminum silicate fiber of diameter 2 ~ 4 μm, length≤1cm 1 ~ 2 part,
8 ~ 15 parts, silicon carbide,
Quartz sand 12 ~ 14 parts,
Mg-Zr alloys 0.2 ~ 6 part,
Binding agent for carbonic refractory material 2 ~ 5 parts.
2. the refractory materials containing silicon carbide according to claim 1, is characterized in that: the granularity of described Mg-Zr alloys is less than or equal to 0.2mm; In Mg-Zr alloys, zirconium content is 3% ~ 35%, and all the other are magnesium and impurity; Mg-Zr alloys is powdery;
Described magnesium oxide, calcium oxide raw material are one or both in calcium magnesia sand or dolomite sand, or the mixture of one or both and magnesia in calcium magnesia sand or dolomite sand; Described magnesium oxide, calcium oxide raw material are divided into particle and fine powder;
Described binding agent for carbonic refractory material is one or more in the mixture of pitch liquation, tar liquid, novolac resin liquid and urotropine.
3. the refractory materials containing silicon carbide according to claim 1, is characterized in that: described content >=5% containing CaO in the refractory materials of silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510251901.2A CN104926323A (en) | 2015-05-18 | 2015-05-18 | Refractory material containing silicon carbide |
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| CN201510251901.2A CN104926323A (en) | 2015-05-18 | 2015-05-18 | Refractory material containing silicon carbide |
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| CN201510251901.2A Pending CN104926323A (en) | 2015-05-18 | 2015-05-18 | Refractory material containing silicon carbide |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105967657A (en) * | 2016-05-04 | 2016-09-28 | 黄河科技学院 | Environmentally friendly refractory material and preparation method thereof |
| CN107324785A (en) * | 2017-08-08 | 2017-11-07 | 长兴俊泽炉窑工程有限公司 | A kind of steel-smelting electric furnace special-purpose fire-resistant brick |
| CN107881598A (en) * | 2017-11-13 | 2018-04-06 | 蒋艳玲 | A kind of refractory fibrous material and preparation method thereof |
| CN109628068A (en) * | 2018-12-24 | 2019-04-16 | 江苏嘉耐高温材料有限公司 | A kind of phase-change heat-storage material |
| CN111689780A (en) * | 2020-06-04 | 2020-09-22 | 宁夏众城新能源科技有限公司 | Refractory material for Acheson closed resistance furnace and preparation method thereof |
| CN113999023A (en) * | 2021-09-28 | 2022-02-01 | 赛文斯新型材料(无锡)有限公司 | Preparation method of nano refractory material for stopper rod |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1950313A (en) * | 2004-03-05 | 2007-04-18 | 里弗雷克特里知识产权两合公司 | Ceramic batch and associated product for fireproof applications |
| CN102910917A (en) * | 2012-10-20 | 2013-02-06 | 江苏苏嘉集团新材料有限公司 | Magnesium-calcium-carbon refractory material |
-
2015
- 2015-05-18 CN CN201510251901.2A patent/CN104926323A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1950313A (en) * | 2004-03-05 | 2007-04-18 | 里弗雷克特里知识产权两合公司 | Ceramic batch and associated product for fireproof applications |
| CN102910917A (en) * | 2012-10-20 | 2013-02-06 | 江苏苏嘉集团新材料有限公司 | Magnesium-calcium-carbon refractory material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105967657A (en) * | 2016-05-04 | 2016-09-28 | 黄河科技学院 | Environmentally friendly refractory material and preparation method thereof |
| CN107324785A (en) * | 2017-08-08 | 2017-11-07 | 长兴俊泽炉窑工程有限公司 | A kind of steel-smelting electric furnace special-purpose fire-resistant brick |
| CN107881598A (en) * | 2017-11-13 | 2018-04-06 | 蒋艳玲 | A kind of refractory fibrous material and preparation method thereof |
| CN109628068A (en) * | 2018-12-24 | 2019-04-16 | 江苏嘉耐高温材料有限公司 | A kind of phase-change heat-storage material |
| CN111689780A (en) * | 2020-06-04 | 2020-09-22 | 宁夏众城新能源科技有限公司 | Refractory material for Acheson closed resistance furnace and preparation method thereof |
| CN113999023A (en) * | 2021-09-28 | 2022-02-01 | 赛文斯新型材料(无锡)有限公司 | Preparation method of nano refractory material for stopper rod |
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Application publication date: 20150923 |