CN110386825A - 刚玉镁尖晶石质不烧砖及其制备方法 - Google Patents

刚玉镁尖晶石质不烧砖及其制备方法 Download PDF

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CN110386825A
CN110386825A CN201910542542.4A CN201910542542A CN110386825A CN 110386825 A CN110386825 A CN 110386825A CN 201910542542 A CN201910542542 A CN 201910542542A CN 110386825 A CN110386825 A CN 110386825A
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parts
corundum
unburned brick
magnesia spinel
preparation
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钱元英
蒋才南
匡宇航
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Yixing Xinwei Leeshing Refractory Materials Co Ltd
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Yixing Xinwei Leeshing Refractory Materials Co Ltd
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    • 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
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
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    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite

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Abstract

本发明属于耐火材料技术领域，具体为刚玉镁尖晶石质不烧砖及其制备方法，（1）原料配料，按照质量份数，电熔刚玉50‑80份，97电熔镁砂0‑10份，高纯烧结镁铝尖晶石5‑25份，轻烧氧化铝微粉2‑6份，水玻璃RM‑Ⅲ粉2.4份，适量的结合剂；（2）配料混练和机压成型，再经过热处理。本发明提供的刚玉镁尖晶石质不烧砖，为精炼钢包用无碳无硅不烧砖，通过添加电熔镁砂细颗粒，使镁砂和刚玉、氧化铝微粉在高温下反应，生产镁铝尖晶石提高耐磨性能和热震稳定性；通过使用水玻璃做结合剂，促进中高温下钠离子挥发和莫来石的生成。引入预合成镁尖晶石，也进一步提高了不烧砖的抗侵蚀渗透性能。

Description

刚玉镁尖晶石质不烧砖及其制备方法
技术领域
本发明属于耐火材料技术领域，具体为精炼钢包用刚玉镁尖晶石质不烧砖及其制备方法。
背景技术
我国是世界上钢铁生产和消费第一大国，精炼钢包用炉衬材料逐步向无碳无硅质耐火材料发展。现有的无碳无硅质耐火材料制成的耐火材料在抗侵蚀渗透性、抗热震性能方面不尽人意。
发明内容
本发明提供一种精炼钢包用无碳无硅刚玉镁尖晶石质不烧砖及其制备方法，通过用料优化组合和选择合适的结合剂，提高砖的抗侵蚀渗透性、抗热震性能。
具体的技术方案为：
本发明提供的刚玉镁尖晶石质不烧砖，其制备方法，包括以下步骤：
（1）原料配料，按照质量份数，电熔刚玉50-80份，97电熔镁砂0-10份，高纯烧结镁铝尖晶石5-25份，轻烧氧化铝微粉2-6份，水玻璃RM-Ⅲ粉2.4份，适量的结合剂；
（2）配料混练和机压成型，再经过热处理。
所述的结合剂包括液态水玻璃2.2份和水1.4份。
所述的热处理条件为260±7℃条件下24小时。
本发明提供的刚玉镁尖晶石质不烧砖，为精炼钢包用无碳无硅不烧砖，通过添加电熔镁砂细颗粒，使镁砂和刚玉、氧化铝微粉在高温下反应，生产镁铝尖晶石提高耐磨性能和热震稳定性；通过使用水玻璃做结合剂，促进中高温下钠离子挥发和莫来石的生成。引入预合成镁尖晶石，也进一步提高了不烧砖的抗侵蚀渗透性能。
具体实施方式
结合实施例说明本发明的具体技术方案。
实施例1
精炼钢包用无碳无硅刚玉镁尖晶石质不烧砖的制备方法，包括以下步骤：原料配料，按照质量份数，电熔棕刚玉50份， 97电熔镁砂5份，高纯烧结镁铝尖晶石20份，轻烧氧化铝微粉5份，电熔白刚玉20份，水玻璃RM-Ⅲ粉2.4份，液态水玻璃2.2份+水1.4份做结合剂，配料混练和机压成型， 260±7℃条件下24小时热处理。
实施例2
精炼钢包用无碳无硅刚玉镁尖晶石质不烧砖的制备方法，包括以下步骤：原料配料，按照质量份数，电熔棕刚玉60份， 97电熔镁砂2份，高纯烧结镁铝尖晶石15份，轻烧氧化铝微粉6份，电熔白刚玉17份，水玻璃RM-Ⅲ粉2.4份，液态水玻璃2.2份+水1.4份做结合剂，配料混练和机压成型， 260±7℃条件下24小时热处理。
实施例3
精炼钢包用无碳无硅刚玉镁尖晶石质不烧砖的制备方法，包括以下步骤：原料配料，按照质量份数，电熔棕刚玉55份，高纯烧结镁铝尖晶石20份，轻烧氧化铝微粉4份，电熔白刚玉18份，水玻璃RM-Ⅲ粉2.4份，液态水玻璃2.2份+水1.4份做结合剂，配料混练和机压成型，260±7℃条件下24小时热处理。

Claims (4)

1.刚玉镁尖晶石质不烧砖的制备方法，其特征在于，包括以下步骤：
（1）原料配料，按照质量份数，电熔刚玉50-80份，97电熔镁砂0-10份，高纯烧结镁铝尖晶石5-25份，轻烧氧化铝微粉2-6份，水玻璃RM-Ⅲ粉2.4份，适量的结合剂；
（2）配料混练和机压成型，再经过热处理。
2.根据权利要求1所述的刚玉镁尖晶石质不烧砖的制备方法，其特征在于，所述的结合剂包括液态水玻璃2.2份和水1.4份。
3.根据权利要求1所述的刚玉镁尖晶石质不烧砖的制备方法，其特征在于，所述的热处理条件为260±7℃条件下24小时。
4.刚玉镁尖晶石质不烧砖，其特征在于，由权利要求1到3任一项制备所得。
CN201910542542.4A 2019-06-21 2019-06-21 刚玉镁尖晶石质不烧砖及其制备方法 Pending CN110386825A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111269019A (zh) * 2020-03-14 2020-06-12 苏州市伊贝高温技术材料有限公司 一种超高温环境使用烧结无污染承烧板及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB711933A (en) * 1951-06-04 1954-07-14 Oesterr Amerikan Magnesit Process of making refractory brick
CN100999391A (zh) * 2006-12-30 2007-07-18 崔凤海 低硅高钙单晶体电熔镁砂熔炼方法
CN102633511A (zh) * 2012-04-09 2012-08-15 宜兴市诺明高温耐火材料有限公司 一种铝‐尖晶石‐镁砂复合耐火材料及其制备方法和应用
CN104045354A (zh) * 2014-05-26 2014-09-17 武汉钢铁(集团)公司 再生刚玉尖晶石不烧钢包砖
CN109047643A (zh) * 2018-09-17 2018-12-21 铜陵市明诚铸造有限责任公司 一种耐高温铸造型砂及其制造工艺

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB711933A (en) * 1951-06-04 1954-07-14 Oesterr Amerikan Magnesit Process of making refractory brick
CN100999391A (zh) * 2006-12-30 2007-07-18 崔凤海 低硅高钙单晶体电熔镁砂熔炼方法
CN102633511A (zh) * 2012-04-09 2012-08-15 宜兴市诺明高温耐火材料有限公司 一种铝‐尖晶石‐镁砂复合耐火材料及其制备方法和应用
CN104045354A (zh) * 2014-05-26 2014-09-17 武汉钢铁(集团)公司 再生刚玉尖晶石不烧钢包砖
CN109047643A (zh) * 2018-09-17 2018-12-21 铜陵市明诚铸造有限责任公司 一种耐高温铸造型砂及其制造工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111269019A (zh) * 2020-03-14 2020-06-12 苏州市伊贝高温技术材料有限公司 一种超高温环境使用烧结无污染承烧板及其制备方法
CN111269019B (zh) * 2020-03-14 2022-04-29 苏州市伊贝高温技术材料有限公司 一种超高温环境使用烧结无污染承烧板及其制备方法

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