CN108440009A - 一种添加碳化硅晶须制备高性能镁碳砖的方法 - Google Patents
一种添加碳化硅晶须制备高性能镁碳砖的方法 Download PDFInfo
- Publication number
- CN108440009A CN108440009A CN201810445303.2A CN201810445303A CN108440009A CN 108440009 A CN108440009 A CN 108440009A CN 201810445303 A CN201810445303 A CN 201810445303A CN 108440009 A CN108440009 A CN 108440009A
- Authority
- CN
- China
- Prior art keywords
- carbon brick
- magnesia carbon
- preparation
- silicon carbide
- carbide whisker
- 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- Withdrawn
Links
Classifications
-
- C04B35/803—
-
- 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
-
- 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
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
-
- 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
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/402—Aluminium
-
- 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
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
-
- 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
- C04B2235/5276—Whiskers, spindles, needles or pins
-
- 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
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
一种添加碳化硅晶须制备高性能镁碳砖的方法,属于钢铁冶金用耐火材料制备技术领域。具体制备方法为:首先,电熔镁砂筛分处理;然后按照一定的配比,将不同粒度的电熔镁砂、石墨、酚醛树脂、添加剂和碳化硅晶须充分混合,经成型、静置、高温热处理后,得到碳化硅晶须改善的镁碳砖;最后,对镁碳砖的耐压强度、抗氧化性进行检测。该方法增强了镁碳砖的耐压强度与氧化性,达到了炼钢和连铸工艺对相关耐火材料部件的质量要求。工艺简便易行,原料廉价易得,易于实现大批量投产。
Description
技术领域
本发明属于钢铁冶金用耐火材料制备技术领域,涉及一种添加碳化硅晶须制备高性能镁碳砖的方法。
背景技术
镁碳砖因具有良好的抗热震性、抗侵蚀性等特点,在各类炼钢炉上作为炉衬材料被广泛应用。但传统镁碳砖含碳量较高,容易氧化,导致材料结构疏松,高温强度快速衰减,从而降低了镁碳砖的使用寿命。因此,提高镁碳砖的耐压强度、抗氧化性对于在炼钢连铸过程尤为重要。
目前,纤维复合化是提高耐火材料性能的有效途径。碳化硅晶须(SiCw)因具有金刚石的结晶结构,牢固的分子内共价键,耐高温、抗氧化等特点,在高强度复合材料的制备中得以广泛的关注。将碳化硅纤维添加到镁碳砖中,可有效地提高碳镁碳砖的的耐压强度和抗氧化性。
发明内容
为了提高镁碳砖的耐压强度、抗氧化性,本发明提出了一种添加碳化硅晶须来改善低碳镁碳材料的制备方法。其主要工序如下:首先,电熔镁砂破碎筛分处理;然后按照一定的配比,将不同粒度的电熔镁砂、石墨、液态酚醛树脂、添加剂和碳化硅晶须充分混合,经成型、静置后,置于高温炉中烧结,得到碳化硅晶须改善的镁碳砖;最后,对镁碳砖的耐压强度、抗氧化性进行检测。
本发明的一种添加碳化硅晶须制备高性能镁碳砖的方法,按以下步骤进行:
步骤1:原料预处理
将购买的电熔镁砂进行破碎筛分处理。
步骤2:碳化硅晶须改善的镁碳砖的制备
(1)按照一定的配比,将不同粒度的电熔镁砂与石墨、添加剂、碳化硅晶须、液态酚醛树脂、按照(65%~85%):(10%~15%):5%:(0%~15%):3%(外)配比混合均匀;
(2)将混匀的粉料多次压制成型为160mm×25mm×25mm的镁碳砖试样;
(3)将镁碳砖试样在空气下自然静置5~10h;
(4)将干燥后的镁碳砖置于150~200℃热处理窑中,保温10h以上。
步骤3:镁碳砖性能检测
(1)常温状态下测量体积密度、显气孔率和常温耐压强度;
(2)将试样置于空气中经1 600℃高温炉3h热处理后,测量氧化试验后试样截面的平均脱碳层厚度及面积;
所述的步骤1中,所述的电熔镁砂的氧化镁含量为98%以上;
所述的步骤1中,所述的破碎机为对辊破碎机或颚式破碎机;
所述的步骤2(1)中,所述的电熔镁砂的混料顺序依次为3~5mm、1~3mm和0~1mm;
所述的步骤2(1)中,所述混料的顺序依次为混匀的电熔镁砂颗粒料、液态酚醛树脂、电熔镁砂细粉(200目)、石墨(>100目)、碳化硅晶须;
所述的步骤2(1)中,所述石墨的指标:固定碳85%~98%,灰分13%~2%(主要成分SiO2,Al2O3等);
所述的步骤2(1)中,所述添加剂为金属铝粉、氧化锆粉、刚玉粉其中的一种;
所述的步骤2(1)中,所述混料采用750型混料机、高温混料机、旋移式高效混料机中的一种;
所述的步骤2(2)中,所述的压制机器为摩擦压力机、电动螺旋压力机和液压机中的一种;
所述的步骤2(2)中,所述的镁碳砖样品在100~200MPa压力下成型,压制次数为10次以上;
所述的步骤2(3)中,所述的镁碳砖样自然静置,以利于挥发物的挥发;
所述的步骤2(4)中,所述的热处理窑为煤窑、电阻丝窑和微波热处理窑中的一种;
所述的步骤3(1)中,所述的体积密度、显气孔率采用阿基米德原理测定;
所述的步骤3(1)中,所述的常温耐压强度采用万能试验机测定;
所述的步骤3(2)中,所述的高温炉为箱式电阻炉、管式电阻炉和隧道窑中的一种。
本发明的一种添加碳化硅晶须制备高性能镁碳砖的方法,增强了镁碳砖耐压强度与抗氧化性,达到了炼钢和连铸工艺对相关耐火材料部件的质量要求。以电熔镁砂、石墨和液态酚醛树脂为主要原料,利用碳化硅纤维的耐高温、抗氧化、抗热震等优点出制备高性能的镁碳砖,工艺简便易行,有利于大批量生产。
附图说明
图1是本发明的工艺流程图。
具体实施方式
下面结合实施例对本发明作进一步的详细说明。
以下实施例中,一种添加碳化硅晶须制备高性能镁碳砖的方法工艺流程图1。
实施例1
一种添加碳化硅晶须制备高性能镁碳砖的方法,按以下步骤进行:
步骤1:原料预处理
将购买的电熔镁砂进行破碎筛分处理。
步骤2:碳化硅晶须改善的镁碳砖的制备
(1)按照一定的配比,将不同粒度混合均匀的的电熔镁砂,再与石墨、添加剂、碳化硅晶须、液态酚醛树脂、按照80%:15%:5%:0%:3%(外)配比混合均匀;;
(2)将混匀的粉料多次压制成型为160mm×25mm×25mm的镁碳砖试样;
(3)将镁碳砖试样在空气下自然静置5~10h;
(4)将干燥后的镁碳砖置于150~200℃热处理窑中,保温10h以上。
步骤3:镁碳砖性能检测
(1)常温状态下测量体积密度、显气孔率与常温耐压强度;
(2)将试样置于空气中经1 600℃高温炉3h热处理后,测量氧化试验后试样截面的平均脱碳层厚度及面积;
经检测,所得的镁碳砖的体积密度为3.15g/cm3,显气孔率为5.0%,常温耐压强度为52MPa,氧化层的厚度为45mm,氧化层的面积为1400mm3。
实施例2
一种添加碳化硅晶须制备高性能镁碳砖的方法,同实施例1,不同之处在于,步骤2(1)中,添加2%碳化硅晶须:电熔镁砂,石墨、添加剂、碳化硅晶须、液态酚醛树脂、按照78%:15%:5%:2%:3%(外)配比混合均匀。
经检测,所得镁碳砖的体积密度为3.08g/cm3,显气孔率为5.2%,常温耐压强度为60MPa,氧化层的厚度为15mm,氧化层的面积为900mm3。
实施例3
一种添加碳化硅晶须制备高性能镁碳砖的方法,同实施例1,不同之处在于:步骤2(1)中,添加4%的碳化硅晶须:电熔镁砂,石墨、添加剂、碳化硅晶须、液态酚醛树脂、按照76%:15%:5%:4%:3%(外)配比混合均匀。
经检测,经检测,所得镁碳砖的体积密度为2.98g/cm3,显气孔率为5.4%,常温耐压强度为64Mpa,氧化层的厚度为9mm,氧化层的面积为300mm3。
Claims (10)
1.一种添加碳化硅晶须制备高性能镁碳砖的方法,其特征在于,按以下步骤进行:
步骤1:原料预处理
将购买的电熔镁砂进行破碎筛分处理。
步骤2:碳化硅晶须改善的镁碳砖的制备
(1)按照一定的配比,将不同粒度混合均匀的的电熔镁砂,再与石墨、添加剂、碳化硅晶须、液态酚醛树脂、按照(65%~85%):(10%~15%):5%:(0%~15%):3%(外)配比混合均匀;;
(2)将混匀的粉料多次压制成型为160mm×25mm×25mm的镁碳砖试样;
(3)将镁碳砖试样在空气下自然静置5~10h;
(4)将干燥后的镁碳砖置于150~200℃热处理窑中,保温10h以上。
步骤3:镁碳砖性能检测
(1)常温状态下测量常温耐压强度;
(2)将试样置于空气中经1 600℃高温炉3h热处理后,测量氧化试验后试样截面的平均脱碳层厚度及面积。
2.如权利要求1所述的制备方法,其特征在于,所述的步骤1(1)中,所述的电熔镁砂的氧化镁含量为98%以上。
3.如权利要求1或2所述的制备方法,其特征在于,所述的步骤2(1)中,所述的电熔镁砂的混料顺序依次为3~5mm、1~3mm和0~1mm。
4.如权利要求3所述的制备方法,其特征在于,所述的步骤2(1)中,所述混料的顺序依次为混匀的电熔镁砂颗粒料、液态酚醛树脂、电熔镁砂细粉(200目)、石墨(>100目)、碳化硅晶须。
5.如权利要求1或2或4所述的制备方法,其特征在于,所述的步骤2(1)中,所述石墨的指标:固定碳85%~98%,灰分13%~2%(主要成分SiO2,Al2O3等)。
6.如权利要求5所述的制备方法,其特征在于,所述的步骤2(1)中,所述添加剂为金属铝粉、氧化锆粉、刚玉粉其中的一种。
7.如权利要求1或2或4或6所述的制备方法,其特征在于,所述的步骤2(1)中,所述混料采用750型混料机、高温混料机、旋移式高效混料机中的一种。
8.如权利要求7所述的制备方法,其特征在于,所述的步骤12(2)中,所述的压制机器为摩擦压力机、电动螺旋压力机和液压机中的一种。
9.如权利要求1或2或4或6或8所述的制备方法,其特征在于,2(2)中,所述的镁碳砖样品在100~200MPa压力下成型,压制次数为10次以上;。
10.如权利要求1所述的制备方法,其特征在于,所述的步骤2(4)中,所述的热处理窑为煤窑、电阻丝窑和微波热处理窑中的一种;所述的步骤3(2)中,所述的高温炉为箱式电阻炉、管式电阻炉和隧道窑中的一种。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810445303.2A CN108440009A (zh) | 2018-05-10 | 2018-05-10 | 一种添加碳化硅晶须制备高性能镁碳砖的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810445303.2A CN108440009A (zh) | 2018-05-10 | 2018-05-10 | 一种添加碳化硅晶须制备高性能镁碳砖的方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108440009A true CN108440009A (zh) | 2018-08-24 |
Family
ID=63203408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810445303.2A Withdrawn CN108440009A (zh) | 2018-05-10 | 2018-05-10 | 一种添加碳化硅晶须制备高性能镁碳砖的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108440009A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113248233A (zh) * | 2021-04-29 | 2021-08-13 | 海城利尔麦格西塔材料有限公司 | 一种镁碳砖的制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02164779A (ja) * | 1988-12-19 | 1990-06-25 | Mitsubishi Mining & Cement Co Ltd | セラミックス複合材料及びその製造方法 |
CN101492297A (zh) * | 2009-02-27 | 2009-07-29 | 营口鲅鱼圈耐火材料有限公司 | 电炉底吹定向多孔式透气砖本体及其制造方法 |
CN101531533A (zh) * | 2009-04-22 | 2009-09-16 | 济南鲁东耐火材料有限公司 | 一种低碳镁碳砖及其制备方法 |
CN107032806A (zh) * | 2017-04-05 | 2017-08-11 | 海城市中兴高档镁质砖有限公司 | 一种利用黑镁砂制取转炉炉身砖及其制备方法 |
-
2018
- 2018-05-10 CN CN201810445303.2A patent/CN108440009A/zh not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02164779A (ja) * | 1988-12-19 | 1990-06-25 | Mitsubishi Mining & Cement Co Ltd | セラミックス複合材料及びその製造方法 |
CN101492297A (zh) * | 2009-02-27 | 2009-07-29 | 营口鲅鱼圈耐火材料有限公司 | 电炉底吹定向多孔式透气砖本体及其制造方法 |
CN101531533A (zh) * | 2009-04-22 | 2009-09-16 | 济南鲁东耐火材料有限公司 | 一种低碳镁碳砖及其制备方法 |
CN107032806A (zh) * | 2017-04-05 | 2017-08-11 | 海城市中兴高档镁质砖有限公司 | 一种利用黑镁砂制取转炉炉身砖及其制备方法 |
Non-Patent Citations (1)
Title |
---|
姚华柏等: "镁碳砖的研究现状与发展趋势", 《工程科学学报》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113248233A (zh) * | 2021-04-29 | 2021-08-13 | 海城利尔麦格西塔材料有限公司 | 一种镁碳砖的制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2014206243B2 (en) | Magnesia-carbon brick | |
AU2017349542B2 (en) | Magnesia carbon brick and production method therefor | |
CN105503212B (zh) | 一种镁碳砖及其制备方法 | |
CN108484138A (zh) | 一种添加复合氧化铝微粉及碳源的滑板砖及其制备方法 | |
CN103204691B (zh) | 低热导硅刚玉砖材及由其制成的硅刚玉复合砖 | |
AU2014213475B2 (en) | Magnesia carbon brick | |
CN110563476A (zh) | 纤维增强耐火砖及其制备方法 | |
CN107266043A (zh) | 碳纤维增强镁碳砖及其制备方法 | |
CN103539465A (zh) | 一种高性能镁碳砖及其制备方法 | |
CN108863414B (zh) | 一种高性能的镁碳砖及其制备方法 | |
US7232780B2 (en) | Yttria containing high-density chrome based refractory composites | |
CN111732419B (zh) | 一种性能优良的超低碳镁碳砖及其制备方法 | |
CN106810210A (zh) | 提高抗氧化剂的镁碳砖及其制备方法 | |
JP5943032B2 (ja) | 軽量断熱アルミナ・マグネシア質耐火物の製造方法 | |
CN108440009A (zh) | 一种添加碳化硅晶须制备高性能镁碳砖的方法 | |
CN101591190A (zh) | 一种铝电解槽侧墙用新型Si3N4-SiC-C耐火砖及其制备方法 | |
CN103524137A (zh) | 一种炼钢转炉、钢包用镁碳砖及其制备方法 | |
CN101439978B (zh) | 高温烧成镁碳砖及其制造方法 | |
CN108585895A (zh) | 一种添加三元化合物制备高性能镁碳砖的方法 | |
CN104649691B (zh) | 一种抗热震镁尖晶石砖及其制备方法 | |
JP6583968B2 (ja) | 耐火物煉瓦 | |
CN109534832A (zh) | 一种耐侵蚀钢包砖及其制备方法 | |
CN104561628A (zh) | 一种低温制备二硼化锆基陶瓷复合材料的方法 | |
CN104193363A (zh) | 一种提高MgO-C砖强度的方法 | |
JP2016204255A (ja) | 焼成用容器及び焼成用容器の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
|
WW01 | Invention patent application withdrawn after publication |