A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Magnesia carbon brick for vicinity of furnace door of electric arc furnace and preparation method of magnesia carbon brick
The invention relates to a magnesia carbon brick for the vicinity of the furnace door of an electric arc furnace and a preparation method of the magnesia carbon brick. The prepared magnesia carbon brick is prepared from the following raw materials in parts by weight: 20-30 parts of fused magnesia of which the granularity is more than or equal to 3mm and less than 5mm, 20-40 parts of fused magnesiaof which the granularity is more than or equal to 1mm and less than 3mm, 10-20 parts of fused magnesia of which the granularity is more than or equal to 0.1 mm, 5-20 parts of fused magnesia powder ofwhich the granularity is smaller than 0.088 mm, and 12-16 parts of flake graphite, 1-3 parts of phenolic resin binder, and 1-6 parts of additive; the content of magnesium oxide in the fused magnesiteis greater than or equal to 97.5 wt%, and the volume density of the fused magnesite is greater than 3.45 g/cm <3>. According to the magnesia carbon brick for the vicinity of the furnace door of an electric arc furnace and a preparation method of the magnesia carbon brick of the invention, the phenolic resin binder is used; the phenolic resin binder is utilized to prepare the fused magnesite and flake graphite with different particle sizes under the action of the additive, so that the magnesia carbon brick has the advantages of good heat-conducting property, low thermal expansion coefficient,high tensile strength, good toughness, oxidation resistance and scour resistance.
本发明涉及一种电炉炉门附近用镁碳砖及其制备方法，所制备的镁碳砖是由下列重量份数的原料：3mm≤粒度＜5mm的电熔镁砂20‑30份，1mm≤粒度＜3mm的电熔镁砂20‑40份，0.1mm≤粒度＜1mm的电熔镁砂10‑20份，粒度小于0.0.088mm的电熔镁砂细粉5‑20份，鳞片状石墨12‑16份，酚醛树脂结合剂1‑3份，添加剂1‑6份,电熔镁砂中氧化镁含量≥97.5wt％，且体积密度为大于3.45g/cm3。本发明采用酚醛树脂结合剂，利用其将多种不同粒径的电熔镁砂和鳞片状石墨在添加剂的作用下制成一种导热性能好、热膨胀系数低、拉伸强度高、韧性好且兼具有抗氧化和耐冲刷的性能。
Magnesia carbon brick for vicinity of furnace door of electric arc furnace and preparation method of magnesia carbon brick
The invention relates to a magnesia carbon brick for the vicinity of the furnace door of an electric arc furnace and a preparation method of the magnesia carbon brick. The prepared magnesia carbon brick is prepared from the following raw materials in parts by weight: 20-30 parts of fused magnesia of which the granularity is more than or equal to 3mm and less than 5mm, 20-40 parts of fused magnesiaof which the granularity is more than or equal to 1mm and less than 3mm, 10-20 parts of fused magnesia of which the granularity is more than or equal to 0.1 mm, 5-20 parts of fused magnesia powder ofwhich the granularity is smaller than 0.088 mm, and 12-16 parts of flake graphite, 1-3 parts of phenolic resin binder, and 1-6 parts of additive; the content of magnesium oxide in the fused magnesiteis greater than or equal to 97.5 wt%, and the volume density of the fused magnesite is greater than 3.45 g/cm <3>. According to the magnesia carbon brick for the vicinity of the furnace door of an electric arc furnace and a preparation method of the magnesia carbon brick of the invention, the phenolic resin binder is used; the phenolic resin binder is utilized to prepare the fused magnesite and flake graphite with different particle sizes under the action of the additive, so that the magnesia carbon brick has the advantages of good heat-conducting property, low thermal expansion coefficient,high tensile strength, good toughness, oxidation resistance and scour resistance.
本发明涉及一种电炉炉门附近用镁碳砖及其制备方法，所制备的镁碳砖是由下列重量份数的原料：3mm≤粒度＜5mm的电熔镁砂20‑30份，1mm≤粒度＜3mm的电熔镁砂20‑40份，0.1mm≤粒度＜1mm的电熔镁砂10‑20份，粒度小于0.0.088mm的电熔镁砂细粉5‑20份，鳞片状石墨12‑16份，酚醛树脂结合剂1‑3份，添加剂1‑6份,电熔镁砂中氧化镁含量≥97.5wt％，且体积密度为大于3.45g/cm3。本发明采用酚醛树脂结合剂，利用其将多种不同粒径的电熔镁砂和鳞片状石墨在添加剂的作用下制成一种导热性能好、热膨胀系数低、拉伸强度高、韧性好且兼具有抗氧化和耐冲刷的性能。
Magnesia carbon brick for vicinity of furnace door of electric arc furnace and preparation method of magnesia carbon brick
一种电炉炉门附近用镁碳砖及其制备方法
CAO HE (author) / REN LIN (author) / WANG WEIWEI (author) / YUAN XIAODONG (author) / WANG ZHIXING (author) / LIU LI (author) / GAO MEI (author) / LIU MEIRONG (author)
2020-12-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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