CN113416065A - 一种新型高铝碳化硅碳质浇注料 - Google Patents
一种新型高铝碳化硅碳质浇注料 Download PDFInfo
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- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 67
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 46
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 74
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000843 powder Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 21
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 20
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 19
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 19
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 19
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 19
- 239000010431 corundum Substances 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 10
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 8
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 239000008030 superplasticizer Substances 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 16
- 239000010426 asphalt Substances 0.000 abstract description 11
- 239000011159 matrix material Substances 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 32
- 238000001514 detection method Methods 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 239000002893 slag Substances 0.000 description 10
- 238000005266 casting Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 7
- 230000000996 additive effect Effects 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 150000002430 hydrocarbons Chemical class 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 230000001603 reducing effect Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910001570 bauxite Inorganic materials 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 2
- 229910021418 black silicon Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004584 polyacrylic acid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005269 aluminizing Methods 0.000 description 1
- 229910052661 anorthite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
本发明公开了一种新型高铝碳化硅碳质浇注料，各组分按质量百分比计为：高铝骨料70‑72％；球沥青2‑3％；氧化铝微粉4‑8％；亚微米SiO2微粉4‑5％；碳化硅粉10‑12％；白刚玉粉2‑6％；金属硅粉0.6‑0.8％；金属铝粉0.5‑0.7％；防爆纤维0.08‑0.1％；分散剂0.1‑0.16％；外加4.3％的水搅拌均匀后振动成型。本发明利用通过多项技术措施，最大程度的提高了高铝碳化硅碳质浇注料的致密程度，同时彻底避免了浇注料基质因水泥引入在高温下产生的低熔相，通过粉料基质性能的突破性增强，抵消了高铝骨料本身高温性能的不足，解决了长期以来高铝碳化硅碳质浇注料相比刚玉质高铝碳化硅碳质浇注料热态强度显著降低的问题，实现了普通高铝碳化硅碳质浇注料中以高铝骨料完全替换刚玉骨料的目标。
Description
技术领域
本发明属于不定形耐火材料领域，具体涉及一种新型高铝碳化硅碳质浇注料。
背景技术
高铝碳化硅碳质浇注料长期以来主要用于替代同材质的铝碳化硅碳砖，分为独立的铁水包浇注料体系及铁沟浇注料体系。其中铁沟浇注料由于要经受1500℃左右铁水及熔渣的长期冲刷，对该浇注料的有着特殊且严格地使用要求，目前一般采用刚玉碳化硅碳质快干防爆浇注料可以保证其使用要求，采用普通的高铝碳化硅碳质浇注料难以达到使用要求。
铁水包用的高铝碳化硅碳质浇注料由于加水量大、水泥加入量高、碳化硅含量少、浇注料整体纯度低，抗渣性能差、不具有铁沟浇注料快干防爆的性能，不能用于铁沟。铁沟浇注料由于成本高，金属铝粉产生氢气，也不适用于铁水包类环境体系。
由于高铝骨料相对于棕刚玉不但化学纯度较低，而且骨料本身致密性相对较差，全部采用高铝质的铝碳化硅碳质浇注料会导致浇注料加水量大增、水泥用量大增；该体系粉料基质中即使采用最高档次的原材料，也无法避免因水泥引入、生成钙长石等低熔点物质带来的高温性能劣化；相对疏松的结构及大量的低熔相导致浇注料不能满足铁沟的使用要求。因此，如何最大程度的减少高铝碳化硅碳质浇注料的加水量、彻底避免水泥带来的低熔物危害，使浇注料基质在高温下产生不产生低熔相，通过基质性能的突破性增强来抵消高铝骨料本身高温性能的不足，成为高铝碳化硅碳质浇注料性能取得本质提升、“脱胎换骨”的关键核心。
CN202110064608.0公开了一种铁沟浇注料及其制备方法，采用33-36％均化矾土替代棕刚玉，解决以棕刚玉为骨料的铁沟浇注料价格较高的技术问题。但是高铝骨料用量比例仍较低，水泥结合产生低熔物。
CN201711106693.2公开了一种含70％以上高铝骨料的铁沟浇注料，采用纯铝酸钙水泥1.6～2％；氧化铝微粉5.5～7.5％；复合二氧化硅微粉2.5～3.5％；解决了加水量大、水泥用量大的技术难题。但是水泥结合产生低熔物，仅可用于铁沟，不能用于铁水包。
CN201510516636.6公开了一种铁水包用浇注料及其制备方法，采用二氧化硅微粉3～6％，碳化硅细粉5～8％，水泥3～7％，实现骨料全高铝化。但是加水量大、水泥含量高，不能满足铁沟使用要求。
发明内容
本发明目的在于提供一种新型高铝碳化硅碳质浇注料，降低浇注料的加水量、彻底避免水泥带来的低熔物危害，提高浇注料的致密性、抗渣性、热态强度等高温使用性能，使高铝碳化硅碳质浇注料性能获得了本质的提升。
为达到上述目的，采用技术方案如下：
一种新型高铝碳化硅碳质浇注料，各组分按质量百分比计为：
外加4.3％的水搅拌均匀后振动成型。成型前在模具上刷满ZUSOPLAST O59型复合烃类陶瓷助剂，用于避免浇注料养护过程中腐蚀模具，解决这种新型浇注料特有的脱模问题。
上述方案中，所述高铝骨料为88高铝矾土骨料，其中所含Al2O3≥88wt％、Fe2O3≤1.6wt％，其粒径为0.1-12mm。所述88高铝矾土骨料应选择吸水率低、纯度高、最好用巴马克破碎出来的颗粒，颗粒形状偏圆型最好，良好的高铝骨料原料是制得高铝碳化硅碳质浇注料的前提。
上述方案中，所述球沥青为高温球沥青，粒度不大于1.5mm。本发明选用高温球沥青，该高残炭含量的沥青有利于提升高铝碳化硅碳质浇注料的抗渣性能。
上述方案中，所述亚微米SiO2微粉d90≤0.5微米；体积平均粒径D[4,3]≤0.3微米；SiO2含量大于99.8wt％。这种亚微米SiO2微粉既具有普通SiO2微粉的分散特性，又具有突破传统的填充性和减水性，在一定的加入量条件下可以产生足够的施工强度，是浇注料实现无水泥化、降低加水量、提高热态强度、提高抗渣性能的核心技术方法。
上述方案中，所述氧化铝微粉的粒度分布为d10≤0.9μm，d50≤2μm，d90≤5μm；其Al2O3含量大于99.5wt％、Na2O含量小于0.1wt％。这种精选的氧化铝微粉具有较宽的粒度分布，与亚微米SiO2微粉形成良好的粒度紧密堆积，而且在较高加入比例的情况下具有优良的分散特性，从而使浇注料呈现良好的减水性能及较低的料浆粘度，并且这种精选氧化铝微粉的高活性提高了浇注料的早期强度，在国内外各种氧化铝微粉中，相同加入量的条件下，采用该氧化铝微粉的浇注料的烘干强度最高。
上述方案中，所述金属硅粉的粒度≤45μm；其中Si含量≥98.5wt％。
上述方案中，所述金属铝粉的粒度≤74μm，Al含量≥99wt％；本发明采用的金属铝粉在本系统浇注料中与传统水泥结合系统的作用不同，不与水反应产生氢气起到防爆作用，而是抗氧化、提高浇注料抗渣性能的核心方法，同时是提高热态强度的方法之一。
上述方案中，所述碳化硅粉的粒度≤74μm，其中SiC含量≥98wt％。为结晶良好的黑碳化硅，保证了基质的高纯度及良好的抗渣性。
上述方案中，所述防爆纤维为聚乙烯醇类水溶性纤维；长度6毫米，直径18微米，熔点≤80℃。该材质规格的纤维在这种亚微米SiO2微粉结合体系中，是所有防爆措施中最有效、最实用的一种。
上述方案中，所述白刚玉粉的主要化学成分为Al2O3≥99.2wt％，Na2O≤0.2wt％。
上述方案中，所述分散剂为聚丙烯酸类高效减水剂。
与现有技术相比，本发明的有益效果为：
本发明利用亚微米SiO2微粉具有的独特特性：既具有普通SiO2微粉的分散特性，又具有突破传统的填充性和减水性，同时具有纳米SiO2微粉的自结合性能，是将普通SiO2微粉与纳米SiO2微粉优点完美结合的新型材料；结合特种氧化铝微粉的基质填充作用；将高铝碳化硅碳质浇注料的加水量从5％左右降低到4.4％以下，将高铝碳化硅碳质浇注料的水泥加入量由3％左右降低到了零，实现了高铝碳化硅碳质浇注料的无水泥致密化结合。
本发明采用金属铝粉替代部分金属硅粉，既提高了浇注料的抗氧化性能，又提高了浇注料的抗渣性能，解决了长期以来高铝碳化硅碳质浇注料相比刚玉碳化硅碳质浇注料抗渣性能显著降低的问题。
本发明找到了亚微米SiO2微粉结合的高铝碳化硅碳质浇注料体系中，防爆措施中最有效、最实用的方法，拓展了高铝碳化硅碳质浇注料的应用范围，打通了铁沟浇注料与铁水包类浇注料的应用界限。
本发明创新的通过在模具上刷满ZUSOPLAST O59型复合烃类陶瓷助剂，解决了浇注料对模具的腐蚀问题。
本发明利用通过多项技术措施，最大程度的提高了高铝碳化硅碳质浇注料的致密程度，同时彻底避免了浇注料基质因水泥引入在高温下产生的低熔相，通过粉料基质性能的突破性增强，抵消了高铝骨料本身高温性能的不足，解决了长期以来高铝碳化硅碳质浇注料相比刚玉质高铝碳化硅碳质浇注料热态强度显著降低的问题，实现了普通高铝碳化硅碳质浇注料中以高铝骨料完全替换刚玉骨料的目标。
具体实施方式
以下实施例进一步阐释本发明的技术方案，但不作为对本发明保护范围的限制。
本发明提供一种新型高铝碳化硅碳质浇注料，各组分按质量百分比计为：
高铝骨料70-72％；球沥青2-3％；氧化铝微粉4-8％；亚微米SiO2微粉4-5％；碳化硅粉10-12％；白刚玉粉2-6％；金属硅粉0.6-0.8％；金属铝粉0.5-0.7％；防爆纤维0.08-0.1％；分散剂0.1-0.16％；外加4.3％的水搅拌均匀后振动成型，成型前在模具上刷满ZUSOPLAST O59型复合烃类陶瓷助剂，用于避免浇注料养护过程中腐蚀模具，解决这种新型浇注料特有的脱模问题。
以下实施例中，所述高铝骨料采用88高铝骨料，其尺寸为0.1-12mm；不同粒径颗粒占对应的高铝碳化硅碳质浇注料配方中各组分总质量的百分比为：8-12mm 7％，5-8mm20％，3-5mm 15％，1-3mm 15％，0.1-1mm 12-14％；其化学成分为：Al2O3≥88wt％、Fe2O3≤1.6wt％。
所述的球沥青的粒度不大于1.5mm。
所述亚微米SiO2微粉d90≤0.5微米；体积平均粒径D[4,3]≤0.3微米,SiO2≥99.8wt％。
所述氧化铝微粉的粒度分布为：d10≤0.9μm，d50≤2μm，d90≤5μm；其Al2O3≥99.5wt％、Na2O≤0.1wt％。
所述金属硅粉的粒度≤45μm；其中Si含量≥98.5wt％
所述金属铝粉的粒度≤45μm，Al含量≥99wt％；
所述碳化硅粉的粒度≤74μm，为结晶良好的黑碳化硅，其中SiC含量≥98wt％；
所述白刚玉粉的主要化学成分为：Al2O3≥99.2wt％，Na2O≤0.2wt％。
所述防爆纤维为聚乙烯醇类水溶性纤维；长度6毫米，直径18微米，熔点≤80℃。
所述分散剂为聚丙烯酸类高效减水剂，有极佳的减水性能。
实施例1
一种新型高铝碳化硅碳质浇注料，各组分及其所占质量百分比为：将88高铝骨料70％、碳化硅粉11％、球沥青2.71％、白刚玉粉6％、亚微米SiO2微粉5％、氧化铝微粉4％、金属硅粉0.6％、金属铝粉0.5％、特种防爆纤维0.09％、分散剂0.1％；将各原料按上述配比称取并充分混合；再加入水(水的质量为各原料总质量的4.3％)搅拌均匀后振动成型；成型前在模具上刷满ZUSOPLAST O59型复合烃类陶瓷助剂。成型后所得试样经自然干燥48h后在110℃下再进行热处理24h，制得高铝碳化硅碳质浇注料试样。
将本实施例所制得的高铝碳化硅碳质浇注料试样进行性能检测，结果如表1所示；其中采用的性能检测方法按照现行国家标准或行业标准进行，所得检测结果为3次平均检测结果(以下同)。
表1实施例1所制得的高铝碳化硅碳质浇注料试样的性能检测结果
实施例2
一种新型高铝碳化硅碳质浇注料，各组分及其所占质量百分比为：将88高铝骨料72％、碳化硅粉10％、球沥青2％、白刚玉粉2.24％、亚微米SiO2微粉4％、氧化铝微粉8％、金属硅粉0.8％、金属铝粉0.7％、特种防爆纤维0.1％、分散剂0.16％；将各原料按上述配比称取并充分混合；再加入水(水的质量为各原料总质量的4.3％)搅拌均匀后振动成型；成型前在模具上刷满ZUSOPLAST O59型复合烃类陶瓷助剂。成型后所得试样经自然干燥48h后在110℃下再进行热处理24h，制得高铝碳化硅碳质浇注料试样。
将本实施例所制得的高铝碳化硅碳质浇注料试样进行性能检测，结果如表2所示；其中采用的性能检测方法按照现行国家标准或行业标准进行，所得检测结果为3次平均检测结果(以下同)。
表2实施例2所制得的高铝碳化硅碳质浇注料试样的性能检测结果
实施例3
一种新型高铝碳化硅碳质浇注料，各组分及其所占质量百分比为：将88高铝骨料71％、碳化硅粉12％、球沥青3％、白刚玉粉2％、亚微米SiO2微粉4.5％、氧化铝微粉6％、金属硅粉0.7％、金属铝粉0.6％、特种防爆纤维0.08％、分散剂0.12％；将各原料按上述配比称取并充分混合；再加入水(水的质量为各原料总质量的4.2％)搅拌均匀后振动成型；成型前在模具上刷满ZUSOPLAST O59型复合烃类陶瓷助剂。成型后所得试样经自然干燥48h后在110℃下再进行热处理24h，制得高铝碳化硅碳质浇注料试样。
将本实施例所制得的高铝碳化硅碳质浇注料试样进行性能检测，结果如表3所示；其中采用的性能检测方法按照现行国家标准或行业标准进行，所得检测结果为3次平均检测结果(以下同)。
表3实施例3所制得的高铝碳化硅碳质浇注料试样的性能检测结果
实施例4
一种新型高铝碳化硅碳质浇注料，各组分及其所占质量百分比为：将88高铝骨料72％、碳化硅粉10％、球沥青2.5％、白刚玉粉4％、亚微米SiO2微粉4％、氧化铝微粉6％、金属硅粉0.78％、金属铝粉0.5％、特种防爆纤维0.09％、分散剂0.13％；将各原料按上述配比称取并充分混合；再加入水(水的质量为各原料总质量的4.3％)搅拌均匀后振动成型；成型前在模具上刷满ZUSOPLAST O59型复合烃类陶瓷助剂。成型后所得试样经自然干燥48h后在110℃下再进行热处理24h，制得高铝碳化硅碳质浇注料试样。
将本实施例所制得的高铝碳化硅碳质浇注料试样进行性能检测，结果如表4所示；其中采用的性能检测方法按照现行国家标准或行业标准进行，所得检测结果为3次平均检测结果(以下同)。
表4实施例4所制得的高铝碳化硅碳质浇注料试样的性能检测结果
上述结果表明，本发明所得高铝碳化硅碳质浇注料，具有无水泥、加水量低、热态强度高、抗渣性好、适用范围广等特点。广泛应用于铁沟类、铁水包类、耐高温耐侵蚀、中高温耐磨等工业窑炉部位，实现了铝碳化硅碳质浇注料中以高铝骨料完全替换刚玉骨料的目标。
显然，上述实施例仅仅是为清楚地说明所作的实例，而并非对实施方式的限制。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而因此所引申的显而易见的变化或变动仍处于本发明创造的保护范围之内。
Claims (10)
1.一种新型高铝碳化硅碳质浇注料，其特征在于各组分按质量百分比计为：
外加4.3％的水搅拌均匀后振动成型。
2.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述高铝骨料为88高铝矾土骨料，其中所含Al2O3≥88wt％、Fe2O3≤1.6wt％，其粒径为0.1-12mm。
3.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述球沥青为高温球沥青，粒度不大于1.5mm。
4.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述亚微米SiO2微粉d90≤0.5微米；体积平均粒径D[4,3]≤0.3微米；SiO2含量大于99.8wt％。
5.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述氧化铝微粉的粒度分布为d10≤0.9μm，d50≤2μm，d90≤5μm；其Al2O3含量大于99.5wt％、Na2O含量小于0.1wt％。
6.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述金属硅粉的粒度≤45μm；其中Si含量≥98.5wt％；所述金属铝粉的粒度≤74μm，Al含量≥99wt％。
7.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述碳化硅粉的粒度≤74μm，其中SiC含量≥98wt％。
8.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述防爆纤维为聚乙烯醇类水溶性纤维；长度6毫米，直径18微米，熔点≤80℃。
9.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述白刚玉粉的主要化学成分为Al2O3≥99.2wt％，Na2O≤0.2wt％。
10.如权利要求1所述新型高铝碳化硅碳质浇注料，其特征在于所述分散剂为聚丙烯酸类高效减水剂。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603274A (zh) * | 2012-04-06 | 2012-07-25 | 武汉科技大学 | 一种铁沟浇注料及其制备方法 |
| CN111848143A (zh) * | 2020-07-28 | 2020-10-30 | 武汉科技大学 | 一种高热态强度的氧化铝-碳化硅-炭质浇注料 |
| CN112830772A (zh) * | 2021-01-22 | 2021-05-25 | 中冶武汉冶金建筑研究院有限公司 | 一种亚微米二氧化硅微粉结合铁沟浇注料及其制备方法 |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603274A (zh) * | 2012-04-06 | 2012-07-25 | 武汉科技大学 | 一种铁沟浇注料及其制备方法 |
| CN111848143A (zh) * | 2020-07-28 | 2020-10-30 | 武汉科技大学 | 一种高热态强度的氧化铝-碳化硅-炭质浇注料 |
| CN112830772A (zh) * | 2021-01-22 | 2021-05-25 | 中冶武汉冶金建筑研究院有限公司 | 一种亚微米二氧化硅微粉结合铁沟浇注料及其制备方法 |
Non-Patent Citations (1)
| Title |
|---|
| 高峰，朱洪波编著: "《建筑材料科学基础》", 31 August 2016, 同济大学出版社 * |
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