CN108409301A - 一种镁碳砖及其制备方法 - Google Patents

一种镁碳砖及其制备方法 Download PDF

Info

Publication number
CN108409301A
CN108409301A CN201810265675.7A CN201810265675A CN108409301A CN 108409301 A CN108409301 A CN 108409301A CN 201810265675 A CN201810265675 A CN 201810265675A CN 108409301 A CN108409301 A CN 108409301A
Authority
CN
China
Prior art keywords
parts
fused magnesite
magnesia carbon
carbon brick
preparation
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.)
Pending
Application number
CN201810265675.7A
Other languages
English (en)
Inventor
曹丽云
龚育才
张雪松
俞晓东
茹红强
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.)
JIANGSU SUJIA GROUP NEW MATERIAL CO Ltd
Original Assignee
JIANGSU SUJIA GROUP NEW 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 JIANGSU SUJIA GROUP NEW MATERIAL CO Ltd filed Critical JIANGSU SUJIA GROUP NEW MATERIAL CO Ltd
Priority to CN201810265675.7A priority Critical patent/CN108409301A/zh
Publication of CN108409301A publication Critical patent/CN108409301A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03Shaped 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
    • C04B35/04Shaped 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
    • C04B35/043Refractories from grain sized mixtures
    • C04B35/0435Refractories from grain sized mixtures containing refractory metal compounds other than chromium oxide or chrome ore
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232Titanium oxides or titanates, e.g. rutile or anatase
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40Metallic constituents or additives not added as binding phase
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/48Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins

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

本发明涉及一种镁碳砖及其制备方法,各组分按重量份数计为:电熔镁砂颗粒60~75份、电熔镁砂细粉10~30份、酚醛树脂5~10份、二氧化钛1~2份、金属锂粉1~2份,制备时首先将各组分混炼制成泥料,然后将泥料加入至模具中进行压制成型,最后将压制成型的砖坯置于干燥窑中进行烘烤得到镁碳砖。本发明制备方法简单,步骤易于操作,在原料中加入二氧化钛和金属锂粉能够提高镁碳砖的抗氧化性,进而满足特钢冶炼的要求,满足镁碳砖的优异性能。

Description

一种镁碳砖及其制备方法
技术领域
本发明涉及一种镁碳砖及其制备方法,属于耐火材料制备技术领域。
背景技术
镁碳砖是以高熔点碱性氧化物氧化镁(熔点2800℃)和难以被炉渣侵润的高熔点碳素材料作为原料,添加各种非氧化物添加剂。用炭质结合剂结合而成的不烧碳复合耐火材料。镁碳砖主要用于转炉、交流电弧炉、直流电弧炉的内衬,钢包的渣线等部位。镁碳砖作为一种复合耐火材料,有效地利用了镁砂的抗渣侵蚀能力强和碳的高导热性及低膨胀性,补偿了镁砂耐剥落性差的最大缺点。
发明内容
本发明的目的是克服现有技术中存在的不足,提供一种制备方法简单,步骤易于操作的镁碳砖及其制备方法。
本发明提供的技术方案,一种镁碳砖,各组分按重量份数计为:电熔镁砂颗粒60~75份、电熔镁砂细粉10~30份、酚醛树脂5~10份、二氧化钛1~2份、金属锂粉1~2份。
进一步的,所述电熔镁砂颗粒大小为1~5mm。
进一步的,所述电熔镁砂细粉的粒度为300~350目。
镁碳砖的制备方法,包括如下步骤:
(1)混炼:按重量份数分别称取电熔镁砂颗粒60~75份、电熔镁砂细粉10~30份、酚醛树脂5~10份、二氧化钛1~2份、金属锂粉1~2份,首先将电熔镁砂颗粒放入混炼机中干混5~10min,接着加入酚醛树脂,继续混合5~20min,然后加入二氧化钛混合5~10min,最后加入电熔镁砂细粉和金属锂粉继续混合10~20min形成泥料;
(2)压制成型:将泥料加入至模具中进行压制成型,成型压力为2500~6000KN;
(3)烘烤固化:将步骤(2)中压制成型的砖坯置于干燥窑中进行烘烤得到镁碳砖,烘烤温度为150~300℃,烘烤时间为10~20h。
进一步的,所述步骤(1)中采用连续混炼机的转速为900~1000 rad/min,混炼时间为20~60min。
本发明制备方法简单,步骤易于操作,在原料中加入二氧化钛和金属锂粉能够提高镁碳砖的抗氧化性,进而满足特钢冶炼的要求,满足镁碳砖的优异性能。
具体实施方式
下面结合具体实施例对本发明作进一步说明。
实施例一:
一种镁碳砖,各组分按重量份数计为:电熔镁砂颗粒60份、电熔镁砂细粉30份、酚醛树脂5份、二氧化钛2份、金属锂粉2份,电熔镁砂颗粒大小为5mm,电熔镁砂细粉的粒度为300目。
镁碳砖的制备方法,包括如下步骤:
(1)混炼:按重量份数分别称取电熔镁砂颗粒60份、电熔镁砂细粉30份、酚醛树脂5份、二氧化钛2份、金属锂粉2份,首先将电熔镁砂颗粒放入混炼机中干混5min,接着加入酚醛树脂,继续混合20min,然后加入二氧化钛混合5min,最后加入电熔镁砂细粉和金属锂粉继续混合10min形成泥料,连续混炼机的转速为1000 rad/min,混炼时间为20min;
(2)压制成型:将泥料加入至模具中进行压制成型,成型压力为2500KN;
(3)烘烤固化:将步骤(2)中压制成型的砖坯置于干燥窑中进行烘烤得到镁碳砖,烘烤温度为300℃,烘烤时间为10h。
实施例二:
一种镁碳砖,各组分按重量份数计为:电熔镁砂颗粒70份、电熔镁砂细粉20份、酚醛树脂8份、二氧化钛1.5份、金属锂粉1.5份,电熔镁砂颗粒大小为3mm,电熔镁砂细粉的粒度为300目。
镁碳砖的制备方法,包括如下步骤:
(1)混炼:按重量份数分别称取电熔镁砂颗粒70份、电熔镁砂细粉20份、酚醛树脂8份、二氧化钛1.5份、金属锂粉1.5份,首先将电熔镁砂颗粒放入混炼机中干混8min,接着加入酚醛树脂,继续混合15min,然后加入二氧化钛混合8min,最后加入电熔镁砂细粉和金属锂粉继续混合15min形成泥料,连续混炼机的转速为1000 rad/min,混炼时间为40min;
(2)压制成型:将泥料加入至模具中进行压制成型,成型压力为5000KN;
(3)烘烤固化:将步骤(2)中压制成型的砖坯置于干燥窑中进行烘烤得到镁碳砖,烘烤温度为200℃,烘烤时间为15h。
实施例三:
一种镁碳砖,各组分按重量份数计为:电熔镁砂颗粒75份、电熔镁砂细粉10份、酚醛树脂10份、二氧化钛1份、金属锂粉1份,电熔镁砂颗粒大小为1mm,电熔镁砂细粉的粒度为350目。
镁碳砖的制备方法,包括如下步骤:
(1)混炼:按重量份数分别称取电熔镁砂颗粒75份、电熔镁砂细粉30份、酚醛树脂5份、二氧化钛2份、金属锂粉2份,首先将电熔镁砂颗粒放入混炼机中干混10min,接着加入酚醛树脂,继续混合5min,然后加入二氧化钛混合10min,最后加入电熔镁砂细粉和金属锂粉继续混合20min形成泥料,连续混炼机的转速为900 rad/min,混炼时间为60min;
(2)压制成型:将泥料加入至模具中进行压制成型,成型压力为6000KN;
(3)烘烤固化:将步骤(2)中压制成型的砖坯置于干燥窑中进行烘烤得到镁碳砖,烘烤温度为150℃,烘烤时间为20h。

Claims (5)

1.一种镁碳砖,其特征是:各组分按重量份数计为:电熔镁砂颗粒60~75份、电熔镁砂细粉10~30份、酚醛树脂5~10份、二氧化钛1~2份、金属锂粉1~2份。
2.如权利要求1所述的镁碳砖,其特征是:所述电熔镁砂颗粒大小为1~5mm。
3.如权利要求1所述的镁碳砖,其特征是:所述电熔镁砂细粉的粒度为300~350目。
4.权利要求1所述的镁碳砖的制备方法,其特征是:包括如下步骤:
(1)混炼:按重量份数分别称取电熔镁砂颗粒60~75份、电熔镁砂细粉10~30份、酚醛树脂5~10份、二氧化钛1~2份、金属锂粉1~2份,首先将电熔镁砂颗粒放入混炼机中干混5~10min,接着加入酚醛树脂,继续混合5~20min,然后加入二氧化钛混合5~10min,最后加入电熔镁砂细粉和金属锂粉继续混合10~20min形成泥料;
(2)压制成型:将泥料加入至模具中进行压制成型,成型压力为2500~6000KN;
(3)烘烤固化:将步骤(2)中压制成型的砖坯置于干燥窑中进行烘烤得到镁碳砖,烘烤温度为150~300℃,烘烤时间为10~20h。
5. 如权利要求4所述的镁碳砖的制备方法,其特征在于:所述步骤(1)中采用连续混炼机的转速为900~1000 rad/min,混炼时间为20~60min。
CN201810265675.7A 2018-03-28 2018-03-28 一种镁碳砖及其制备方法 Pending CN108409301A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810265675.7A CN108409301A (zh) 2018-03-28 2018-03-28 一种镁碳砖及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810265675.7A CN108409301A (zh) 2018-03-28 2018-03-28 一种镁碳砖及其制备方法

Publications (1)

Publication Number Publication Date
CN108409301A true CN108409301A (zh) 2018-08-17

Family

ID=63133311

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810265675.7A Pending CN108409301A (zh) 2018-03-28 2018-03-28 一种镁碳砖及其制备方法

Country Status (1)

Country Link
CN (1) CN108409301A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110698179A (zh) * 2019-10-15 2020-01-17 上海利尔耐火材料有限公司 一种高性能镁碳砖及其制备方法
CN114890775A (zh) * 2022-06-02 2022-08-12 凤城市千誉钛业有限公司 一种钛渣冶炼矿热炉的炉衬材料及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06219822A (ja) * 1993-01-28 1994-08-09 Toshiba Ceramics Co Ltd マグネシア・カーボンれんが
CN101215177A (zh) * 2007-12-29 2008-07-09 中国钢研科技集团公司 一种低碳氧化镁基复合耐火材料及其制备方法
CN101423396A (zh) * 2007-11-02 2009-05-06 中国科学院金属研究所 一种耐高温、抗氧化硅氮氧陶瓷的低温制备方法
CN104478455A (zh) * 2014-12-24 2015-04-01 辽宁中镁控股股份有限公司 一种具有非氧化物增强增韧结构的低碳镁碳砖及其制备方法
CN106810210A (zh) * 2016-12-29 2017-06-09 江苏苏嘉集团新材料有限公司 提高抗氧化剂的镁碳砖及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06219822A (ja) * 1993-01-28 1994-08-09 Toshiba Ceramics Co Ltd マグネシア・カーボンれんが
CN101423396A (zh) * 2007-11-02 2009-05-06 中国科学院金属研究所 一种耐高温、抗氧化硅氮氧陶瓷的低温制备方法
CN101215177A (zh) * 2007-12-29 2008-07-09 中国钢研科技集团公司 一种低碳氧化镁基复合耐火材料及其制备方法
CN104478455A (zh) * 2014-12-24 2015-04-01 辽宁中镁控股股份有限公司 一种具有非氧化物增强增韧结构的低碳镁碳砖及其制备方法
CN106810210A (zh) * 2016-12-29 2017-06-09 江苏苏嘉集团新材料有限公司 提高抗氧化剂的镁碳砖及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘有常: "《趣味化学》", 31 May 1981, 广东科技出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110698179A (zh) * 2019-10-15 2020-01-17 上海利尔耐火材料有限公司 一种高性能镁碳砖及其制备方法
CN114890775A (zh) * 2022-06-02 2022-08-12 凤城市千誉钛业有限公司 一种钛渣冶炼矿热炉的炉衬材料及其制备方法

Similar Documents

Publication Publication Date Title
CN104725058B (zh) 方镁石-镁铁铁铝尖晶石/镁橄榄石复合砖
CN104446568A (zh) 一种耐火保温砖及其制备方法
CN102285813B (zh) 一种锆刚玉莫来石质结构隔热一体化复合砖及制备方法
CN102173826A (zh) 一种高热震稳定性的刚玉透气座砖及生产方法
CN107311626A (zh) 一种添加氮化铝的镁碳砖及其制备方法
CN101804456A (zh) 无碳免烧砖及其生产方法
CN103880454A (zh) 一种出铁口再生料回收利用的快干式防爆浇注料
CN108439958A (zh) 一种转炉炉底热更换用接缝耐火材料及施工方法
CN108409301A (zh) 一种镁碳砖及其制备方法
CN103922771A (zh) 一种采用废弃铁沟料生产的蓄铁沟浇注料
CN107954697A (zh) 一种添加碳化硼的镁碳砖及其制备方法
CN103936441B (zh) 一种回收并利用废铁沟再生料的快干式防爆浇注料的制作方法
CN108484139B (zh) 一种镁铬耐火材料的制备方法
CN106747505A (zh) 一种无碳转炉修补料
CN101412631B (zh) 一种轻质耐火砖
CN105174983A (zh) 一种rh内衬用镁尖晶石砖及其制备方法
CN104876603A (zh) 隔热耐火砖的制备方法
CN109160808A (zh) 电弧炉炉顶三角区预制件专用浇注料
CN105218116A (zh) 一种无铬砖及其制备方法
CN108526452A (zh) 一种快速烘烤型中间包干式料及其制备方法
CN102276266A (zh) 一种低碳镁碳砖
CN108424151A (zh) 一种抗高温耐腐蚀的镁碳砖及其制备方法
CN105152668B (zh) 一种rh内衬用无铬砖及其制备方法
CN102285810B (zh) 一种镁橄榄石质结构隔热一体化复合砖及制备方法
CN103467131A (zh) 一种混合法制备氧化铝轻质隔热砖的方法

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20180817

RJ01 Rejection of invention patent application after publication