CN114671693A - 一种高性能耐火浇注料 - Google Patents

一种高性能耐火浇注料 Download PDF

Info

Publication number
CN114671693A
CN114671693A CN202210485687.7A CN202210485687A CN114671693A CN 114671693 A CN114671693 A CN 114671693A CN 202210485687 A CN202210485687 A CN 202210485687A CN 114671693 A CN114671693 A CN 114671693A
Authority
CN
China
Prior art keywords
percent
particle size
castable
refractory castable
performance refractory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202210485687.7A
Other languages
English (en)
Inventor
王嘉楠
陈晶晶
吴伟英
辛英杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Jianaite Refractory Material Co ltd
Original Assignee
Henan Jianaite Refractory Material Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan Jianaite Refractory Material Co ltd filed Critical Henan Jianaite Refractory Material Co ltd
Priority to CN202210485687.7A priority Critical patent/CN114671693A/zh
Publication of CN114671693A publication Critical patent/CN114671693A/zh
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
    • 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
    • C04B2235/34—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
    • 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
    • C04B2235/34—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
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5212—Organic
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
    • C04B2235/9684—Oxidation resistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

本发明涉及耐火材料生产技术领域，公开了一种高性能耐火浇注料,由质量百分比分别为25‑30％的红柱石、50‑60％的六酸钙铝、20％‑50％的硅酸锌锆粉、20‑40％的切削粉、56‑67％的微孔莫来石颗粒、6‑16％的莫来石微粉、0.5‑3％的硅微粉、1‑3％的铝酸钙水泥以及0.3‑0.6％的减水剂、0.5‑0.8％的促凝剂、0.03‑0.05％的有机防爆纤维和6‑10％的流动性添加剂组成；以上各原料经过研磨混合，振动分散、搅拌混匀、振动成型及及加热处理后形成浇注料；本发明，通过对生产浇注料的原料进行优化匹配及适配选取，能够有效增加浇注料的耐磨性、抗侵蚀性及高温耐受性等；保证使用过程中的稳定性，降低对资源的浪费。

Description

一种高性能耐火浇注料
技术领域
本发明涉及耐火材料生产技术领域，尤涉及一种高性能耐火浇注料。
背景技术
耐火材料是一种耐火度不低于1580℃的一类无机非金属材料，由于其具有良好的高温耐受性，被广泛用于冶金、化工、机械制造及动力等工业领域中相关设备的内衬上；由于耐火材料在使用过程中，经常会遭受高温烟气和一些灰渣的强烈冲刷，耐火材料内衬会随相应设备内的温度波动而出现被侵蚀及剥落的现象，不但影响生产效率，还会导致能源的大量浪费；中国专利CN106278307A公开了一种高性能耐火浇注料，通过分别采用不同比例的A88均化料、A88均化料粉、碳化硅、永吉黏土、铁锌尖晶石微粉等原料混合加工而成，但这种浇注料存在流动性过大，凝固慢，影响中高温时的性能，同时热震稳定性较差，应用存在局限。
发明内容
本发明的目的是提供一种高性能耐火浇注料，通过对生产浇注料的原料进行优化匹配及适配选取，能够有效增加浇注料的耐磨性、抗侵蚀性及高温耐受性等；保证使用过程中的稳定性，降低对资源的浪费。
本发明采用以下技术方案：
一种高性能耐火浇注料,由质量百分比分别为25-30％的红柱石、50-60％的六酸钙铝、20％-50％的硅酸锌锆粉、20-40％的切削粉、56-67％的微孔莫来石颗粒、6-16％的莫来石微粉、0.5-3％的硅微粉、1-3％的铝酸钙水泥以及0.3-0.6％的减水剂、0.5-0.8％的促凝剂、0.03-0.05％的有机防爆纤维和6-10％的流动性添加剂组成；以上各原料经过研磨混合，振动分散、搅拌混匀、振动成型及及加热处理后形成浇注料。
优选地，所述的25-30％的红柱石粒径为1-3mm、50-60％的六酸钙铝粒径为3-5mm、20％-50％的硅酸锌锆粉粒径为150-280目、20-40％的切削粉粒径为300-350目、56-67％的微孔莫来石颗粒粒径为30-65 μm、6-16％的莫来石微粉粒径为D90≤30μm、0.5-3％的硅微粉粒径为5-8μm。
优选地，所述的切削粉中SiC的含量为80％、单质硅的含量为20％。
优选地，所述的微孔莫来石颗粒的气孔率为18-25％。
优选地，所述的减水剂为FS60高效减水剂。
优选地，所述的有机防爆纤维直径选取为0.1mm，长度15-30mm。
优选地，所述的流动性添加剂为聚酯增流剂。
优选地，所述的促凝剂采用氢氧化铅。
与现有技术相比本发明的有益效果是：本发明中通过在原料中采取红柱石以及六铝酸钙能够有效增加浇注料的抗侵蚀性能，通过切削粉的添加能够利用切削粉中含有的碳化硅和单质硅，提高浇注料的抗震性和抗氧化性；通过微孔莫来石颗粒及莫来石微粉的选取，能够利用莫来石自身具有的高温耐受性及热震稳定性，来起到对浇注料增强及增韧的效果，提升浇注料的机械强度；通过铝酸钙水泥及硅微粉的添加能够进一步提高浇注料的抗侵蚀性能，保证浇注料在高温下抵抗灰渣的侵蚀。
具体实施方式
以下将结合实施例对本发明作以清楚和完整的说明：
本发明所述的一种高性能耐火浇注料,由质量百分比分别为 25-30％的红柱石、50-60％的六酸钙铝、20％-50％的硅酸锌锆粉、20-40％的切削粉、56-67％的微孔莫来石颗粒、6-16％的莫来石微粉、0.5-3％的硅微粉、1-3％的铝酸钙水泥以及0.3-0.6％的减水剂、0.5-0.8％的促凝剂、0.03-0.05％的有机防爆纤维和6-10％的流动性添加剂组成；其中，通过红柱石、六铝酸钙及硅酸锌锆粉的选取使用，能够有效增加浇注料的抗侵蚀性能，同时还能利用红柱石在低温时的反应，对热应力进行吸收，以辅助抵消高温下材料的收缩，稳定浇注料的性能；通过切削粉的添加能够利用切削粉中含有的碳化硅和单质硅，提高浇注料的抗震性和抗氧化性，优选地，切削粉中SiC的含量为80％、单质硅的含量为20％；通过利用微孔莫来石颗粒及莫来石微粉的选取，能够利用莫来石自身具有的高温耐受性及热震稳定性，来起到对浇注料增强及增韧的效果，提升浇注料的机械强度。铝酸钙水泥及硅微粉的加入，能够进一步提高浇注料的抗侵蚀性能，保证浇注料在高温下抵抗灰渣的侵蚀，确保浇注料在不同温度下使用时都能保持稳定的性能，保证生产效率。
进一步地，由于骨料强度一般大于基质，骨料越多，浇注料在不同温度下的抗折强度越优异，抵抗巨大温差变化的能力就越强，所以本发明中各种原料的粒径选取分别为25-30％的红柱石粒径为1-3mm、 50-60％的六酸钙铝粒径为3-5mm、20％-50％的硅酸锌锆粉粒径为 150-280目、20-40％的切削粉粒径为300-350目、56-67％的微孔莫来石颗粒粒径为30-65μm、6-16％的莫来石微粉粒径为D90≤30μm、 0.5-3％的硅微粉粒径为5-8μm。
进一步地，微孔莫来石颗粒的气孔率为18-25％，有助于缓冲浇筑料在高温下的热应力，提高浇筑料的热震稳定性，优选地气孔率为 23％左右；此外，在本发明中减水剂优选采用FS60高效减水剂，有机防爆纤维直径选取为0.1mm，长度15-30mm；有机防爆纤维能够有效减轻浇注料内部的应力，防止浇注料因高温而导致爆裂情况的发生，延长浇注料的使用寿命。流动性添加剂优选采用聚酯增流剂，以加快浇注料的润湿，提高浇注料的搅拌混合效率；促凝剂采用氢氧化铅，以便缩短浇注料的凝结和硬化时间。
作为本发明优选地一例，红柱石选取3mm粒径，用量28％、六酸钙铝选取粒径3.6mm，用量56％、硅酸锌锆粉选取粒径260目，用量 46％、的切削粉选取粒径320目，用量36％、微孔莫来石颗粒选取粒径55μm，用量60％、莫来石微粉选取粒径20μm，用量15％、硅微粉选取粒径6μm，用量1.5％、铝酸钙水泥用量1.5％、减水剂用量0.5％、促凝剂用量0.75％、有机防爆纤维用量0.036％和流动性添加剂用量 8％。
本发明中浇注料在加工时，首先将以上各原料中粒径较小的基质原料及流动性添加剂经过星式球磨罐充分研磨混合，通过磨球的抛洒和研磨，实现基质粉体的快速混匀，随后将基质浆体倒入分散容器内利用高频振动电机进行振动分散，再添加粒径较大的骨料进行搅拌混匀，之后放置在振动台上进行振动浇注成型，最后进行保温及升温加热处理后即可得到浇注料。本发明所生产出的浇注料，能够有效增加浇注料的耐磨性、抗侵蚀性及高温耐受性等优良性能；保证使用过程中的稳定性，降低对资源的浪费。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (8)

1.一种高性能耐火浇注料,其特征在于：由质量百分比分别为25-30％的红柱石、50-60％的六酸钙铝、20％-50％的硅酸锌锆粉、20-40％的切削粉、56-67％的微孔莫来石颗粒、6-16％的莫来石微粉、0.5-3％的硅微粉、1-3％的铝酸钙水泥以及0.3-0.6％的减水剂、0.5-0.8％的促凝剂、0.03-0.05％的有机防爆纤维和6-10％的流动性添加剂组成；以上各原料经过研磨混合，振动分散、搅拌混匀、振动成型及及加热处理后形成浇注料。
2.根据权利要求1所述的高性能耐火浇注料,其特征在于：所述的25-30％的红柱石粒径为1-3mm、50-60％的六酸钙铝粒径为3-5mm、20％-50％的硅酸锌锆粉粒径为150-280目、20-40％的切削粉粒径为300-350目、56-67％的微孔莫来石颗粒粒径为30-65μm、6-16％的莫来石微粉粒径为D90≤30μm、0.5-3％的硅微粉粒径为5-8μm。
3.根据权利要求2所述的高性能耐火浇注料,其特征在于：所述的切削粉中SiC的含量为80％、单质硅的含量为20％。
4.根据权利要求3所述的高性能耐火浇注料,其特征在于：所述的微孔莫来石颗粒的气孔率为18-25％。
5.根据权利要求4所述的高性能耐火浇注料,其特征在于：所述的减水剂为FS60高效减水剂。
6.根据权利要求1所述的高性能耐火浇注料,其特征在于：所述的有机防爆纤维直径选取为0.1mm，长度15-30mm。
7.根据权利要求1所述的高性能耐火浇注料,其特征在于：所述的流动性添加剂为聚酯增流剂。
8.根据权利要求1所述的高性能耐火浇注料,其特征在于：所述的促凝剂采用氢氧化铅。
CN202210485687.7A 2022-05-06 2022-05-06 一种高性能耐火浇注料 Withdrawn CN114671693A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210485687.7A CN114671693A (zh) 2022-05-06 2022-05-06 一种高性能耐火浇注料

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210485687.7A CN114671693A (zh) 2022-05-06 2022-05-06 一种高性能耐火浇注料

Publications (1)

Publication Number Publication Date
CN114671693A true CN114671693A (zh) 2022-06-28

Family

ID=82080644

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210485687.7A Withdrawn CN114671693A (zh) 2022-05-06 2022-05-06 一种高性能耐火浇注料

Country Status (1)

Country Link
CN (1) CN114671693A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115368151A (zh) * 2022-08-18 2022-11-22 河南省宏达炉业有限公司 一种抗剥落和抗水蒸气侵蚀的耐火浇注料及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115368151A (zh) * 2022-08-18 2022-11-22 河南省宏达炉业有限公司 一种抗剥落和抗水蒸气侵蚀的耐火浇注料及其制备方法
CN115368151B (zh) * 2022-08-18 2023-05-23 河南省宏达炉业有限公司 一种抗剥落和抗水蒸气侵蚀的耐火浇注料及其制备方法

Similar Documents

Publication Publication Date Title
WO2022144012A1 (zh) 一种钙长石质微纳孔绝隔热耐火材料及其制备方法
CN112159214B (zh) 用于精炼钢包工作层的浇注料
CN108516849B (zh) 一种水泥窑用锆莫砖及其制备方法
CN110511046B (zh) 一种连铸中间包挡渣部件的耐火浇注料及制备方法
CN111187090A (zh) 一种钢包用尖晶石微粉浇注料和由该浇注料制备预制件的方法
CN104072177A (zh) 一种含碳纤维的高炉出铁沟用浇注料及其制备方法
CN108530090B (zh) 一种轻质中间包工作衬及其制备方法
CN113200755B (zh) 环境友好型连铸中间包干式料及其制备方法
CN111517767B (zh) 一种钢包包底材料和由该材料制备冲击区预制块的方法
CN114671693A (zh) 一种高性能耐火浇注料
CN1072626C (zh) 轻质莫来石浇注料
CN110963807A (zh) 一种用于水泥窑过渡带的节能型莫来石质耐火砖及其制备方法
CN112592161A (zh) 基于盐湖卤水镁资源制备镁硅水结合剂的方法及在镁质耐火浇注料中的应用
JP2565361B2 (ja) 高強度水硬性硬化体の製造法
CN114873996B (zh) 一种抗渣蚀钢包浇注料及其制备方法
CN106316429A (zh) 一种碳素焙烧炉火道墙拉砖预制块及其制备方法
CN103833382A (zh) 用于真空精炼炉的环保型耐火浇注料及制备方法
CN110606735A (zh) 一种体积稳定性可控的钢包浇注料及其制备方法
CN106810283B (zh) 一种莫来石-铬轻质浇注料
CN107602137A (zh) 一种浇注成型转炉出钢口内水口砖及其制备方法
CN112279657B (zh) 一种轻量矾土基耐火砖及其制备方法
CN114763302B (zh) 一种石灰喷枪用耐火浇注料及其制备方法、应用
CN114573324A (zh) 一种rh真空炉内衬耐火材料及其制备方法
CN113045299A (zh) 一种含复合结合剂的机压无碳钢包砖及其制备方法
CN113233880A (zh) 一种整体浇注用钢包浇注料及其制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20220628

WW01 Invention patent application withdrawn after publication