CN104311075A - Alloy combined unfired sliding plate - Google Patents
Alloy combined unfired sliding plate Download PDFInfo
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- CN104311075A CN104311075A CN201410533154.7A CN201410533154A CN104311075A CN 104311075 A CN104311075 A CN 104311075A CN 201410533154 A CN201410533154 A CN 201410533154A CN 104311075 A CN104311075 A CN 104311075A
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- alloy
- slide plate
- sliding plate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
Abstract
The invention belongs to the technical field of steelmaking refractory materials, specifically relates to a refractory material product for controlling the flow rate of molten steel in a steelmaking process, namely a sliding plate brick, and in particular relates to an alloy combined unfired sliding plate brick. The alloy combined unfired sliding plate brick consists of 55-70% of aggregate, 20-35% of powder, 3-8% of carbon material, 2-7% of alloy additive and 4-15% of admixture. The sliding plate brick is prepared by adopting an unfiring process; the aluminum-magnesium alloy additive is added in the sliding plate brick, so that the sliding plate brick has a super strong anti-oxidation effect and the toughness of a sliding plate is enhanced; and the thermal shock resistance of the sliding plate brick is improved by introducing a nano high-purity graphite material. The produced alloy combined unfired sliding plate has a good use effect, the procedures are simple, the firing cost is saved, and the harm to the environment is reduced.
Description
Technical field
The invention belongs to the technical field of Refractory For Steelmaking, be specially in steelmaking process a kind of refractory products-slide brick controlling molten steel flow, what especially a kind of alloy combined does not burn slide plate.
Background technology
As functional refractory for steelmaking, the working conditions of slide brick is harsh, for the raising of slide plate access times, use safety, always is important research topic.For a long time, the main material of domestic and international slide plate is Al_2O_3-C based, aluminium zirconium carbonaceous, magnesia spinel matter, generally be divided at process aspect and burn till dipping baking, do not burn dipping baking, do not burn not soaking technology, in, large ladle furnace and outlet slide plate be mostly burnt product.Firing process and dipping baking cause the increase of the loaded down with trivial details of slide brick operational path and manufacturing cost.Depressed along with current both at home and abroad steel industry, upstream and downstream firms product is had difficulty in taking a step, and how when guaranteeing safe, the manufacturing cost reducing product becomes the direction that all technician make great efforts.
The batching of current slide plate adopts artificial preparation, and raw material adopts corundum or high aluminium material to be aggregate, and corundum fine powder, graphite, metal simple-substance, metal oxide are fine powder, through mixing, shaping, burn till, immersion oil, bake preparation.Do not burn dipping to bake slide plate, do not burn and do not soak slide plate, just technique changes to some extent.
Summary of the invention
The object of the present invention is to provide a kind of alloy to combine and do not burn slide plate, by aggregate 55%-70%, powder 20%-35%, carbon materials 3%-8%, alloy addition 2%-7%, admixture 4%-15% form.Adopt not firing technique to make, in slide brick, with the addition of aluminum magnesium alloy additive, possess the toughness of superpower antioxidant effect and enhancing slide plate, introduce nano level high purity graphite material and improve its heat-shock resistance.Slide plate is not burnt in the alloy combination that the present invention produces, and not only result of use is good, and operation is simple, saves and burns till expense, decrease the harm to environment.
Technical scheme of the present invention is:
A kind of alloy combines and does not burn slide plate, comprises the following composition of percentage: aggregate 55%-70%, powder 20%-35%, carbon materials 3%-8%, alloy addition 2%-7%, admixture 4%-15%; Described aggregate is the particulate material of one or more of sintering plate corundum, active corundum, fused white corundum, described powder is the fine powder of one or more of Pure Silicon Metal, high temperature oxidation aluminium powder, Guangxi clay, described carbon materials is that Japan produces 98 high purity graphites, described alloy addition is aluminum magnesium alloy fine powder, described admixture be metallic aluminium powder, silicon carbide, norbide one or more.
The grain diameter of described aggregate is 5-0.02mm, described fine powder particle diameter ﹤ 0.088mm, granularity ﹤ 200 order of described carbon materials, and C >=95%; Granularity ﹤ 200 order of described admixture.
Described carbon materials is that to produce 10000 order C be the high purity graphite of 98% in Japanese Japan, model AC-10000.
Described admixture be 1000 order metallic aluminium powders, 320 order silicon carbide, 200 order norbides one or more.
Described alloy addition can be powdery, fine particle or threadiness, its granularity or diameter ﹤ 0.5mm.
Described alloy addition is 200 order aluminum magnesium alloy fine powders.
Alloy combines the manufacture method of not burning slide plate, and its step is as follows: after each composition according to the rules ratio batching, by all powders, carbon materials, admixture, first in premixing device, carry out premix, make powder mix for subsequent use; To carry out mixing according to following order of addition(of ingredients), the mixing 3-5 minute of mixing roll put into by aggregate, to add after bonding agent mixing 5-10 minute again, then adds the mixing 20-35 minute of above-mentioned ready powder mix, discharging; Mechanical pressing, adobe is through 150-180 DEG C of dry 24-36 hour; Adopt not firing technique; Add hoop, grind, coating, packaging.
What alloy of the present invention combined does not burn slide brick, and adopt 1000t friction press shaping, formation wet blank slide plate can reach the compressive strength of 100Mpa, and volume density can reach 3.12g/cm
3.
Described bonding agent is resol, adds the 3%-5% that weight is raw material gross weight.
After particulate material adds bonding agent, before adding powder, evenly add alloy addition; Described alloy addition is 200 order aluminum magnesium alloy fine powders.
Beneficial effect of the present invention is:
By adding alloy addition in slide brick formula, there is higher activity, just liquid phase can be formed under middle low-temperature condition, fill slide plate internal porosity, reduce the void content of slide plate, and it has precedence over the material such as combination with oxygen formation aluminum oxide, magnesium oxide etc. entering slide plate inside, improves the resistance of oxidation of slide plate.The carbon materials introduced, possesses superpower antioxidant effect and strengthens the toughness of slide plate, thus improves the thermal shock resistance of slide plate and resistance of oxidation and heat-shock resistance.Because nano-scale carbon cellulosic material has good dispersiveness, effectively can be attached to particle surface, improve the corrosion resistance of slide plate.
The simultaneously oxide ceramics structure that generates in redox processes of alloy, refer to scanning electron microscope Fig. 1, can find out that the ceramic structure formed is fibrous by picture, diameter is at about 10 μm.This ceramic structure is present between particle, strengthens the contact between particle, further increases compressive strength and the thermal shock resistance of goods.Select the raw material that purity is more increased, reduce the content of oxious component, improve indices performance.The present invention is compared with usual aluminum-carbon sliding, aluminum-zirconium-carbon slide, and material cost significantly reduces, and adopts not firing technique, solve the generation of a large amount of flue gas in sintering process, decrease the injury to environment and employee, greatly reduce process cost, economic benefit is objective simultaneously.
In a word, what alloy of the present invention combined does not burn slide plate, possesses the toughness of superpower antioxidant effect and enhancing slide plate, thus improves thermal shock resistance and the resistance of oxidation of slide plate, simultaneously the oxide ceramics structure that generates in redox processes of alloy, further increases the performance of goods.
Accompanying drawing explanation
The scanning electron microscope (SEM) photograph of Fig. 1 oxide ceramics structure that to be alloy generate in redox processes.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in detail.
embodiment 1
First the alloy of the present invention provided in table 1 embodiment combines the ratio of not burning slide plate particulate material used and powder and granularity is equipped with.
Preparation method is:
After each composition according to the rules ratio batching, by all powders, carbon materials, admixture, first in premixing device, carry out premix, make powder mix for subsequent use; Then undertaken mixing with large-scale edge runner-wet mill by following order of addition(of ingredients): the mixing 3-5 minute of mixing roll put into by aggregate, to add after bonding agent (resol of 4.5%) mixing 6 minutes again, then add above-mentioned ready powder mix mixing 35 minutes, discharging; Shaping with 1000 tons of friction presses, adobe is dried 30 hours through 180 DEG C, finally adds hoop, grinds, coating, packaging, obtained alloy combination do not burn slide plate.The test rating not burning slide plate that final alloy combines is in table 2.
The proportioning of each composition of table 1 embodiment of the present invention slide plate
The main performance index of table 2 embodiment of the present invention slide plate
。
Claims (10)
1.
a kind ofalloy combines and does not burn slide plate, comprises the following composition of percentage: aggregate 55%-70%, powder 20%-35%, carbon materials 3%-8%, alloy addition 2%-7%, admixture 4%-15%; Described aggregate is the particulate material of one or more of sintering plate corundum, active corundum, fused white corundum, described powder is the fine powder of one or more of Pure Silicon Metal, high temperature oxidation aluminium powder, Guangxi clay, described carbon materials is that Japan produces 98 high purity graphites, described alloy addition is aluminum magnesium alloy fine powder, described admixture be metallic aluminium powder, silicon carbide, norbide one or more.
2. alloy according to claim 1 combines and does not burn slide plate, and it is characterized in that, the grain diameter of described aggregate is 5-0.02mm, described fine powder particle diameter ﹤ 0.088mm, granularity ﹤ 200 order of described carbon materials, and C >=95%; Granularity ﹤ 200 order of described admixture.
3. alloy according to claim 2 combines and does not burn slide plate, it is characterized in that, described carbon materials is that to produce 10000 order C be the high purity graphite of 98% in Japanese Japan, model AC-10000.
4. alloy according to claim 2 combines and does not burn slide plate, it is characterized in that, described admixture be 1000 order metallic aluminium powders, 320 order silicon carbide, 200 order norbides one or more.
5. alloy according to claim 1 combines and does not burn slide plate, and it is characterized in that, described alloy addition can be powdery, fine particle or threadiness, its granularity or diameter ﹤ 0.5mm.
6. alloy according to claim 5 combines and does not burn slide plate, and it is characterized in that, described alloy addition is 200 order aluminum magnesium alloy fine powders.
7.
a kind ofalloy combines the manufacture method of not burning slide plate, and its step is as follows: after each composition according to the rules ratio batching, by all powders, carbon materials, admixture, first in premixing device, carry out premix, make powder mix for subsequent use; To carry out mixing according to following order of addition(of ingredients), the mixing 3-5 minute of mixing roll put into by aggregate, to add after bonding agent mixing 5-10 minute again, then adds the mixing 20-35 minute of above-mentioned ready powder mix, discharging; Mechanical pressing, adobe is through 150-180 DEG C of dry 24-36 hour; Adopt not firing technique; Add hoop, grind, coating, packaging.
8. alloy according to claim 7 combines the manufacture method of not burning slide plate, it is characterized in that, adopt 1000t friction press shaping, formation wet blank slide plate can reach the compressive strength of 100Mpa, and volume density can reach 3.12g/cm
3.
9. alloy according to claim 7 combines the manufacture method of not burning slide plate, and it is characterized in that, described bonding agent is resol, adds the 3%-5% that weight is raw material gross weight.
10. alloy according to claim 7 combines the manufacture method of not burning slide plate, it is characterized in that, after aggregate adds bonding agent, before adding powder, evenly adds alloy addition; Described alloy addition is 200 order aluminum magnesium alloy fine powders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410533154.7A CN104311075A (en) | 2014-10-11 | 2014-10-11 | Alloy combined unfired sliding plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410533154.7A CN104311075A (en) | 2014-10-11 | 2014-10-11 | Alloy combined unfired sliding plate |
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| CN104311075A true CN104311075A (en) | 2015-01-28 |
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| CN201410533154.7A Pending CN104311075A (en) | 2014-10-11 | 2014-10-11 | Alloy combined unfired sliding plate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036713A (en) * | 2015-06-26 | 2015-11-11 | 湖南仁海科技材料发展有限公司 | Mixing technology of corundum composite ceramic material |
| CN106396689A (en) * | 2016-04-12 | 2017-02-15 | 安徽马钢耐火材料有限公司 | Non-oil-immersed light-burnt energy-saving environment-friendly sliding brick, production method and sliding gate system |
| CN107162604A (en) * | 2017-04-27 | 2017-09-15 | 无锡市南方耐材有限公司 | A kind of high temperature, which is burnt till, exempts from dipping sliding plate brick and preparation method thereof |
| CN108409300A (en) * | 2018-03-22 | 2018-08-17 | 无锡市南方耐材有限公司 | Rich magnesium alkalinity sliding plate brick and preparation method thereof |
| CN109180165A (en) * | 2018-08-26 | 2019-01-11 | 洛阳科创新材料股份有限公司 | A kind of preparation method of sliding plate brick |
| CN109265147A (en) * | 2018-10-11 | 2019-01-25 | 大同新成新材料股份有限公司 | A kind of preparation process being burnt into aluminum-carbon sliding |
| CN109574689A (en) * | 2018-12-30 | 2019-04-05 | 河南新拓耐火材料有限公司 | One kind, which is not burnt, does not soak corundum slide plate and preparation method thereof |
| CN109928737A (en) * | 2017-12-19 | 2019-06-25 | 郑州华祥耐材有限公司 | A kind of addition active organosilicon alkanol does not burn sliding plate brick and its production method |
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| CN101429037A (en) * | 2007-11-07 | 2009-05-13 | 鞍钢集团耐火材料公司 | Aluminum-carbon sliding tile and method of producing the same |
| CN102441663A (en) * | 2011-09-02 | 2012-05-09 | 郑州大学 | Metal aluminum-zinc composite low-carbon aluminum carbon sliding plate and preparation method |
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- 2014-10-11 CN CN201410533154.7A patent/CN104311075A/en active Pending
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| CN101429037A (en) * | 2007-11-07 | 2009-05-13 | 鞍钢集团耐火材料公司 | Aluminum-carbon sliding tile and method of producing the same |
| CN102441663A (en) * | 2011-09-02 | 2012-05-09 | 郑州大学 | Metal aluminum-zinc composite low-carbon aluminum carbon sliding plate and preparation method |
Non-Patent Citations (1)
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| 徐延臻等: "铝碳材料在制造与使用中的物理化学变化", 《硅酸盐通报》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036713A (en) * | 2015-06-26 | 2015-11-11 | 湖南仁海科技材料发展有限公司 | Mixing technology of corundum composite ceramic material |
| CN106396689A (en) * | 2016-04-12 | 2017-02-15 | 安徽马钢耐火材料有限公司 | Non-oil-immersed light-burnt energy-saving environment-friendly sliding brick, production method and sliding gate system |
| CN107162604A (en) * | 2017-04-27 | 2017-09-15 | 无锡市南方耐材有限公司 | A kind of high temperature, which is burnt till, exempts from dipping sliding plate brick and preparation method thereof |
| CN107162604B (en) * | 2017-04-27 | 2021-03-05 | 无锡市南方耐材有限公司 | Medium-high temperature fired impregnation-free sliding plate brick and preparation method thereof |
| CN109928737A (en) * | 2017-12-19 | 2019-06-25 | 郑州华祥耐材有限公司 | A kind of addition active organosilicon alkanol does not burn sliding plate brick and its production method |
| CN108409300A (en) * | 2018-03-22 | 2018-08-17 | 无锡市南方耐材有限公司 | Rich magnesium alkalinity sliding plate brick and preparation method thereof |
| CN109180165A (en) * | 2018-08-26 | 2019-01-11 | 洛阳科创新材料股份有限公司 | A kind of preparation method of sliding plate brick |
| CN109180165B (en) * | 2018-08-26 | 2022-02-22 | 洛阳科创新材料股份有限公司 | Preparation method of sliding plate brick |
| CN109265147A (en) * | 2018-10-11 | 2019-01-25 | 大同新成新材料股份有限公司 | A kind of preparation process being burnt into aluminum-carbon sliding |
| CN109574689A (en) * | 2018-12-30 | 2019-04-05 | 河南新拓耐火材料有限公司 | One kind, which is not burnt, does not soak corundum slide plate and preparation method thereof |
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Application publication date: 20150128 |
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