CN105777160A - 一种钢包渣线用MgO-Cr7C3砖及其制备方法 - Google Patents

一种钢包渣线用MgO-Cr7C3砖及其制备方法 Download PDF

Info

Publication number
CN105777160A
CN105777160A CN201610160005.XA CN201610160005A CN105777160A CN 105777160 A CN105777160 A CN 105777160A CN 201610160005 A CN201610160005 A CN 201610160005A CN 105777160 A CN105777160 A CN 105777160A
Authority
CN
China
Prior art keywords
brick
mgo
slag line
ladle slag
fine powder
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.)
Granted
Application number
CN201610160005.XA
Other languages
English (en)
Other versions
CN105777160B (zh
Inventor
赵惠忠
赵鹏达
张寒
余俊
陈琪
何晴
丁雄风
王立锋
李静捷
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.)
Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
Original Assignee
Wuhan University of Science and Engineering WUSE
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 Wuhan University of Science and Engineering WUSE filed Critical Wuhan University of Science and Engineering WUSE
Priority to CN201610160005.XA priority Critical patent/CN105777160B/zh
Publication of CN105777160A publication Critical patent/CN105777160A/zh
Application granted granted Critical
Publication of CN105777160B publication Critical patent/CN105777160B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C04B35/01—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
    • C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/0435—Refractories from grain sized mixtures containing refractory metal compounds other than chromium oxide or chrome ore
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • 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
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3826—Silicon carbides
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3839—Refractory metal carbides
    • 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
    • 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
    • C04B2235/9676—Resistance against chemicals, e.g. against molten glass or molten salts against molten metals such as steel or aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

本发明涉及一种钢包渣线用MgO‑Cr7C3砖及其制备方法。其技术方案是：以55~65wt%的高纯镁砂颗粒为骨料，以15~25wt%的电熔镁砂细粉、10~15wt%的Cr7C3细粉和5~10wt%的SiC细粉为基质料；按所述骨料和所述基质料的含量，先将基质料混匀，再将混匀后的基质料加入所述骨料中，混合均匀；然后外加占所述骨料和所述基质料之和3~7wt%的铝溶胶，混合5~10分钟，半干法机压成型。将成型后的坯体置于高温炉中，在1500~1600℃和氩气气氛条件下烧成，保温2~3小时，即得钢包渣线用MgO‑Cr7C3砖。本发明工艺简单，所制备的钢包渣线用MgO‑Cr7C3砖的致密度高、高温抗折强度大和抗钢渣侵蚀性能强，对钢液的污染小。

Description

一种钢包渣线用MgO-Cr7C3砖及其制备方法
技术领域
本发明属于钢包渣线用耐火材料技术领域。具体涉及一种钢包渣线用MgO-Cr7C3砖及其制备方法。
背景技术
钢包是钢铁工业中重要储运和冶炼设备。钢包渣线部位耐火材料在炼钢过程中因承受钢渣和钢液的冲刷、流动而造成结构剥落及熔渣侵蚀。所以，钢包渣线部位一般要求服役耐火材料具有良好的热震稳定性、抗渣侵蚀性和抗冲刷性等。
目前，钢包渣线用耐火材料一般采用镁钙质耐火材料和镁碳质耐火材料。
镁钙质耐火材料作为钢包渣线用耐火材料，虽具有高温力学性能良好、抗钢液和钢渣的侵蚀性优异、热震稳定性能好，尤其是可以净化钢水的特点，但是镁钙质耐火材料在制备和使用过程中，极易吸收外界环境中的水分而粉化损毁，大大降低了镁钙质耐火材料的寿命，进而制约了钢包的周转和使用。
镁碳质耐火材料作为钢包渣线用耐火材料，虽然能满足使用寿命的要求，但是最大的问题是后续钢包精炼过程中的增碳问题。在生产之初，多数钢种都出现较大频次的碳超标现象，降低了钢材的品质。此外，镁碳质耐火材料由于碳的氧化，形成脱碳层，加快了渣液对耐火材料的侵蚀，制约了镁碳质耐火材料的使用。
发明内容
本发明旨在克服现有技术缺陷，目的在于提供一种工艺简单的钢包渣线用MgO-Cr7C3砖的制备方法，用该方法制备的钢包渣线用MgO-Cr7C3砖的致密度高、高温抗折强度大和抗钢渣侵蚀性能强，对钢液的污染小。
为实现上述目的，本发明所采用的技术方案是以55~65wt%的高纯镁砂颗粒为骨料，以15~25wt%的电熔镁砂细粉、10~15wt%的Cr7C3细粉和5~10wt%的SiC细粉为基质料；按所述骨料和所述基质料的含量，先将基质料混匀，再将混匀后的基质料加入所述骨料中，混合均匀；然后外加占所述骨料和所述基质料之和3~7wt%的铝溶胶，混合5~10分钟，半干法机压成型。将成型后的坯体置于高温炉中，在1500~1600℃和氩气气氛条件下烧成，保温2~3小时，即得钢包渣线用MgO-Cr7C3砖。
所述高纯镁砂颗粒的主要物相为方镁石，MgO含量＞98wt%，Fe2O3含量≤1wt%；所述高纯镁砂颗粒的粒径为0.1~5mm。
所述电熔镁砂细粉的主要物相为方镁石，MgO含量＞99wt%，Fe2O3含量≤0.1wt%；所述电熔镁砂细粉的粒径为0.088~0.1mm。
所述Cr7C3细粉的主要化学成分是：Cr7C3含量＞90wt%，Cr3C2含量为4~5wt%，Al2O3含量为1~2wt%，Cr2O3含量为5~6wt%；所述Cr7C3细粉的粒径为1~2μm。
所述SiC细粉中的SiC含量＞99wt%，SiC细粉的粒径为1~2μm。
所述铝溶胶中的Al2O3含量为15~20wt%。
所述机压成型的压力为150~180MPa。
所述氩气气氛的压力为0.1~0.15MPa。
由于采用上述技术方案，本发明与现有技术相比具有如下积极效果：
1、本发明无需特殊的生产设备和处理手段，节省劳动力资源，工艺流程简单；
2、本发明无石墨的添加，对钢液污染小；
3、本发明利用原料组分间的固溶反应提升了MgO-Cr7C3砖的致密度，进而增强了MgO-Cr7C3砖的高温抗折强度和抗钢渣侵蚀性能；
本发明所制备的钢包渣线用MgO-Cr7C3砖经测定：体积密度为3.30~3.45g/cm3；1450℃抗折强度为30~35MPa；1550℃静态坩埚法抗渣实验侵蚀指数为4~9%。
因此，本发明工艺简单，所制备的钢包渣线用MgO-Cr7C3砖的致密度高、高温抗折强度大和抗钢渣侵蚀性能强，对钢液的污染小。
具体实施方式
下面结合具体实施方式对本发明作进一步的描述，并非对其保护范围的限制。
为避免重复，先将本具体实施方式涉及到的骨料和基质料以及其他技术参数统一描述如下，实施例中不再赘述：
所述高纯镁砂颗粒的主要物相为方镁石，MgO含量＞98wt%，Fe2O3含量≤1wt%；所述高纯镁砂颗粒的粒径为0.1~5mm。
所述电熔镁砂细粉的主要物相为方镁石，MgO含量＞99wt%，Fe2O3含量≤0.1wt%；所述电熔镁砂细粉的粒径为0.088~0.1mm。
所述Cr7C3细粉的主要化学成分是：Cr7C3含量＞90wt%，Cr3C2含量为4~5wt%，Al2O3含量为1~2wt%，Cr2O3含量为5~6wt%；所述Cr7C3细粉的粒径为1~2μm。
所述SiC细粉中的SiC含量＞99wt%，SiC细粉的粒径为1~2μm。
所述铝溶胶中的Al2O3含量为15~20wt%。
所述机压成型的压力为150~180MPa。
所述氩气气氛的压力为0.1~0.15MPa。
实施例 1
一种钢包渣线用MgO-Cr7C3砖及其制备方法。以55~59wt%的高纯镁砂颗粒为骨料，以21~25wt%的电熔镁砂细粉、10~12wt%的Cr7C3细粉和8~10wt%的SiC细粉为基质料；按所述骨料和所述基质料的含量，先将基质料混匀，再将混匀后的基质料加入所述骨料中，混合均匀；然后外加占所述骨料和所述基质料之和5~7wt%的铝溶胶，混合5~10分钟，半干法机压成型。将成型后的坯体置于高温炉中，在1500~1570℃和氩气气氛条件下烧成，保温2~3小时，即得钢包渣线用MgO-Cr7C3砖。
本实施例所制备的钢包渣线用MgO-Cr7C3砖经测定：体积密度为3.30~3.36g/cm3；1450℃抗折强度为30~32MPa；1550℃静态坩埚法抗渣实验侵蚀指数为7~9%。
实施例 2
一种钢包渣线用MgO-Cr7C3砖及其制备方法。以57~61wt%的高纯镁砂颗粒为骨料，以19~23wt%的电熔镁砂细粉、11~13wt%的Cr7C3细粉和7~9wt%的SiC细粉为基质料；按所述骨料和所述基质料的含量，先将基质料混匀，再将混匀后的基质料加入所述骨料中，混合均匀；然后外加占所述骨料和所述基质料之和5~7wt%的铝溶胶，混合5~10分钟，半干法机压成型。将成型后的坯体置于高温炉中，在1510~1580℃和氩气气氛条件下烧成，保温2~3小时，即得钢包渣线用MgO-Cr7C3砖。
本实施例所制备的钢包渣线用MgO-Cr7C3砖经测定：体积密度为3.33~3.39g/cm3；1450℃抗折强度为31~33MPa；1550℃静态坩埚法抗渣实验侵蚀指数为6~8%。
实施例 3
一种钢包渣线用MgO-Cr7C3砖及其制备方法。以59~63wt%的高纯镁砂颗粒为骨料，以17~21wt%的电熔镁砂细粉、12~14wt%的Cr7C3细粉和6~8wt%的SiC细粉为基质料；按所述骨料和所述基质料的含量，先将基质料混匀，再将混匀后的基质料加入所述骨料中，混合均匀；然后外加占所述骨料和所述基质料之和3~5wt%的铝溶胶，混合5~10分钟，半干法机压成型。将成型后的坯体置于高温炉中，在1520~1590℃和氩气气氛条件下烧成，保温2~3小时，即得钢包渣线用MgO-Cr7C3砖。
本实施例所制备的钢包渣线用MgO-Cr7C3砖经测定：体积密度为3.36~3.42g/cm3；1450℃抗折强度为32~34MPa；1550℃静态坩埚法抗渣实验侵蚀指数为5~7%。
实施例 4
一种钢包渣线用MgO-Cr7C3砖及其制备方法。以61~65wt%的高纯镁砂颗粒为骨料，以15~19wt%的电熔镁砂细粉、13~15wt%的Cr7C3细粉和5~7wt%的SiC细粉为基质料；按所述骨料和所述基质料的含量，先将基质料混匀，再将混匀后的基质料加入所述骨料中，混合均匀；然后外加占所述骨料和所述基质料之和3~5wt%的铝溶胶，混合5~10分钟，半干法机压成型。将成型后的坯体置于高温炉中，在1530~1600℃和氩气气氛条件下烧成，保温2~3小时，即得钢包渣线用MgO-Cr7C3砖。
本实施例所制备的钢包渣线用MgO-Cr7C3砖经测定：体积密度为3.39~3.45g/cm3；1450℃抗折强度为33~35MPa；1550℃静态坩埚法抗渣实验侵蚀指数为4~6%。
本具体实施方式与现有技术相比具有如下积极效果：
1、本具体实施方式无需特殊的生产设备和处理手段，节省劳动力资源，工艺流程简单；
2、本具体实施方式无石墨的添加，对钢液污染小；
3、本具体实施方式利用原料组分间的固溶反应提升了MgO-Cr7C3砖的致密度，进而增强了MgO-Cr7C3砖的高温抗折强度和抗钢渣侵蚀性能；
本具体实施方式所制备的钢包渣线用MgO-Cr7C3砖经测定：体积密度为3.30~3.45g/cm3；1450℃抗折强度为30~35MPa；1550℃静态坩埚法抗渣实验侵蚀指数为4~9%。
因此，本具体实施方式工艺简单，所制备的钢包渣线用MgO-Cr7C3砖的致密度高、高温抗折强度大和抗钢渣侵蚀性能强，对钢液的污染小。

Claims (9)

1.一种钢包渣线用MgO-Cr7C3砖的制备方法，其特征在于以55～65wt％的高纯镁砂颗粒为骨料，以15～25wt％的电熔镁砂细粉、10～15wt％的Cr7C3细粉和5～10wt％的SiC细粉为基质料；按所述骨料和所述基质料的含量，先将基质料混匀，再将混匀后的基质料加入所述骨料中，混合均匀；然后外加占所述骨料和所述基质料之和3～7wt％的铝溶胶，混合5～10分钟，半干法机压成型；将成型后的坯体置于高温炉中，在1500～1600℃和氩气气氛条件下烧成，保温2～3小时，即得钢包渣线用MgO-Cr7C3砖。
2.根据权利要求1所述的钢包渣线用MgO-Cr7C3砖的制备方法，其特征在于所述高纯镁砂颗粒的主要物相为方镁石，MgO含量＞98wt％，Fe2O3含量≤1wt％；所述高纯镁砂颗粒的粒径为0.1～5mm。
3.根据权利要求1所述的钢包渣线用MgO-Cr7C3砖的制备方法，其特征在于所述电熔镁砂细粉的主要物相为方镁石，MgO含量＞99wt％，Fe2O3含量≤0.1wt％；所述电熔镁砂细粉的粒径为0.088～0.1mm。
4.根据权利要求1所述的钢包渣线用MgO-Cr7C3砖的制备方法，其特征在于所述Cr7C3细粉的主要化学成分是：Cr7C3含量＞90wt％，Cr3C2含量为4～5wt％，Al2O3含量为1～2wt％，Cr2O3含量为5～6wt％；所述Cr7C3细粉的粒径为1～2μm。
5.根据权利要求1所述的钢包渣线用MgO-Cr7C3砖的制备方法，其特征在于所述SiC细粉中的SiC含量＞99wt％，SiC细粉的粒径为1～2μm。
6.根据权利要求1所述的钢包渣线用MgO-Cr7C3砖的制备方法，其特征在于所述铝溶胶中的Al2O3含量为15～20wt％。
7.根据权利要求1所述的钢包渣线用MgO-Cr7C3砖的制备方法，其特征在于所述机压成型的压力为150～180MPa。
8.根据权利要求1所述的钢包渣线用MgO-Cr7C3砖的制备方法，其特征在于所述氩气气氛的压力为0.1～0.15MPa。
9.一种钢包渣线用MgO-Cr7C3砖，其特征在于所述钢包渣线用MgO-Cr7C3砖是根据权利要求1～8项中任一项所述的钢包渣线用MgO-Cr7C3砖的制备方法所制备的钢包渣线用MgO-Cr7C3砖。
CN201610160005.XA 2016-03-21 2016-03-21 一种钢包渣线用MgO-Cr7C3砖及其制备方法 Expired - Fee Related CN105777160B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610160005.XA CN105777160B (zh) 2016-03-21 2016-03-21 一种钢包渣线用MgO-Cr7C3砖及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610160005.XA CN105777160B (zh) 2016-03-21 2016-03-21 一种钢包渣线用MgO-Cr7C3砖及其制备方法

Publications (2)

Publication Number Publication Date
CN105777160A true CN105777160A (zh) 2016-07-20
CN105777160B CN105777160B (zh) 2018-05-15

Family

ID=56393088

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610160005.XA Expired - Fee Related CN105777160B (zh) 2016-03-21 2016-03-21 一种钢包渣线用MgO-Cr7C3砖及其制备方法

Country Status (1)

Country Link
CN (1) CN105777160B (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112341163A (zh) * 2020-11-17 2021-02-09 武汉科技大学 添加C@Cr3C2复合粉体的低碳镁碳耐火材料及其制备方法
CN112811928A (zh) * 2021-01-08 2021-05-18 武汉科技大学 一种轻量化方镁石-碳化硅-碳耐火材料及其制备方法
CN112898050A (zh) * 2021-02-24 2021-06-04 辽宁富城耐火材料（集团）有限公司 一种镁碳砖表面新型防滑涂料及其应用方法
CN114409417A (zh) * 2022-01-17 2022-04-29 瑞泰马钢新材料科技有限公司 一种转炉挡渣用闸阀滑板砖及其制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1100706A (zh) * 1993-09-22 1995-03-29 冶金工业部洛阳耐火材料研究院 一种添加铬矿生产钢包砖的方法
CN102173840A (zh) * 2011-01-30 2011-09-07 营口鲅鱼圈耐火材料有限公司 炼钢用不烧MgO-Cr3C2-C砖
CN103979992A (zh) * 2014-06-09 2014-08-13 武汉科技大学 一种钢包透气砖及其制备方法
CN104193363A (zh) * 2014-08-22 2014-12-10 辽宁中镁控股股份有限公司 一种提高MgO-C砖强度的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1100706A (zh) * 1993-09-22 1995-03-29 冶金工业部洛阳耐火材料研究院 一种添加铬矿生产钢包砖的方法
CN102173840A (zh) * 2011-01-30 2011-09-07 营口鲅鱼圈耐火材料有限公司 炼钢用不烧MgO-Cr3C2-C砖
CN103979992A (zh) * 2014-06-09 2014-08-13 武汉科技大学 一种钢包透气砖及其制备方法
CN104193363A (zh) * 2014-08-22 2014-12-10 辽宁中镁控股股份有限公司 一种提高MgO-C砖强度的方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112341163A (zh) * 2020-11-17 2021-02-09 武汉科技大学 添加C@Cr3C2复合粉体的低碳镁碳耐火材料及其制备方法
CN112811928A (zh) * 2021-01-08 2021-05-18 武汉科技大学 一种轻量化方镁石-碳化硅-碳耐火材料及其制备方法
CN112898050A (zh) * 2021-02-24 2021-06-04 辽宁富城耐火材料（集团）有限公司 一种镁碳砖表面新型防滑涂料及其应用方法
CN112898050B (zh) * 2021-02-24 2021-10-22 辽宁富城耐火材料（集团）有限公司 一种镁碳砖表面防滑涂料及其应用方法
CN114409417A (zh) * 2022-01-17 2022-04-29 瑞泰马钢新材料科技有限公司 一种转炉挡渣用闸阀滑板砖及其制备方法

Also Published As

Publication number Publication date
CN105777160B (zh) 2018-05-15

Similar Documents

Publication Publication Date Title
CN104591752B (zh) 一种用于rh精炼炉浸渍管和环流管的烧成镁尖晶石砖及其制备方法
CN102329137B (zh) 一种无碳铝镁质不烧砖、配制方法及应用
CN102627463B (zh) 一种铝‐尖晶石‐刚玉复合耐火材料及其制备方法和应用
CN101148362A (zh) 一种镁橄榄石-碳质耐火砖及其制备方法
CN101475382A (zh) 一种低碳镁碳砖、制作方法及其应用
CN103979992A (zh) 一种钢包透气砖及其制备方法
CN105541359A (zh) 一种铁水包防溅罩用耐火浇注料及其制备方法
CN105819875B (zh) 一种澳斯麦特炼铜炉烟道用耐火浇注料及其制备方法
CN105777160A (zh) 一种钢包渣线用MgO-Cr7C3砖及其制备方法
CN106431436A (zh) 一种以铝铬渣为主料的电炉炉盖浇注料及其制备方法
CN105967702B (zh) 一种滑板砖及其制备方法
CN106904980A (zh) 一种高炉出铁沟用抗渣侵蚀的镁铝尖晶石浇注料
CN115141008B (zh) 一种长寿命摆动沟浇注料及其制备方法
CN108585797B (zh) 一种添加氮化硼的自润滑镁质挡渣滑板砖及其制备方法
CN106966739A (zh) 一种改良的rh喷补料
CN114180954A (zh) 一种环保型低碳铝镁尖晶石砖及其制备方法
CN113603461A (zh) 一种rh高附着率喷补料及其制备方法
CN106866126A (zh) 一种刚玉‑尖晶石质耐火砖及其制备方法
CN104086195A (zh) 含碳纤维的氧化铝-碳化硅-碳砖及其制备方法
CN103936431B (zh) 一种熔融还原炉出铁口用捣打料
CN104193363B (zh) 一种提高MgO-C砖强度的方法
CN104016690B (zh) 一种高强度低膨胀镁尖晶石砖的制备方法
CN110255970A (zh) 一种免烧低碳镁碳砖及其制备方法
CN113277836B (zh) 一种rh浸渍管用喷补料及其制备方法
CN102070346A (zh) 一种铝镁碳砖的制备方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180515

Termination date: 20210321