Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Magnesia carbon brick for electric furnace and preparation method thereof
The invention discloses a magnesia carbon brick for an electric furnace and a preparation method thereof.The preparation method comprises the following steps that a formed product is dried and then put into a sintering furnace, argon is introduced into the sintering furnace, sintering treatment is conducted, and the magnesia carbon brick is formed. In addition, potassium hydroxide, sodium hydroxide and ferrous sulfate are added in the mixing process to reduce the thermal expansion coefficient of the magnesia carbon brick, the ferrous sulfate can also reduce oxides in the magnesia carbon brick, the strength of the magnesia carbon brick is improved, meanwhile, graphite forming is promoted, and the electrical conductivity is enhanced; and sintering the magnesia carbon brick in a sintering furnace. The argon is introduced to remove residual oxygen, so that the thermal expansion coefficient of the formed magnesia carbon brick is further improved, and the conductivity of the magnesia carbon brick is improved.
本发明公开了一种电炉用镁碳砖及其制备方法，所述制备方法包括以下步骤：成型后的产品进行干燥处理后放入烧结炉通入氩气后进行烧结处理形成镁碳砖，通过在制备镁碳砖时，通过加入改性石墨粉、改性氧化铝粉、改性碳化硅粉，以提高镁碳砖的耐火性能以及导电性能，并且，混合过程中加入氢氧化钾、氢氧化钠和硫酸亚铁减小镁碳砖的热膨胀系数，硫酸亚铁还能还原镁碳砖中的氧化物，增加镁碳砖强度的同时，促进石墨的成形和增强导电性能，最后在，在烧结炉烧结镁碳砖时。本发明通入氩气去除残留氧，进一步改善成型镁碳砖的热膨胀系数以及提高镁碳砖导电性能。
Magnesia carbon brick for electric furnace and preparation method thereof
The invention discloses a magnesia carbon brick for an electric furnace and a preparation method thereof.The preparation method comprises the following steps that a formed product is dried and then put into a sintering furnace, argon is introduced into the sintering furnace, sintering treatment is conducted, and the magnesia carbon brick is formed. In addition, potassium hydroxide, sodium hydroxide and ferrous sulfate are added in the mixing process to reduce the thermal expansion coefficient of the magnesia carbon brick, the ferrous sulfate can also reduce oxides in the magnesia carbon brick, the strength of the magnesia carbon brick is improved, meanwhile, graphite forming is promoted, and the electrical conductivity is enhanced; and sintering the magnesia carbon brick in a sintering furnace. The argon is introduced to remove residual oxygen, so that the thermal expansion coefficient of the formed magnesia carbon brick is further improved, and the conductivity of the magnesia carbon brick is improved.
本发明公开了一种电炉用镁碳砖及其制备方法，所述制备方法包括以下步骤：成型后的产品进行干燥处理后放入烧结炉通入氩气后进行烧结处理形成镁碳砖，通过在制备镁碳砖时，通过加入改性石墨粉、改性氧化铝粉、改性碳化硅粉，以提高镁碳砖的耐火性能以及导电性能，并且，混合过程中加入氢氧化钾、氢氧化钠和硫酸亚铁减小镁碳砖的热膨胀系数，硫酸亚铁还能还原镁碳砖中的氧化物，增加镁碳砖强度的同时，促进石墨的成形和增强导电性能，最后在，在烧结炉烧结镁碳砖时。本发明通入氩气去除残留氧，进一步改善成型镁碳砖的热膨胀系数以及提高镁碳砖导电性能。
Magnesia carbon brick for electric furnace and preparation method thereof
一种电炉用镁碳砖及其制备方法
FU HONGBIN (Autor:in)
27.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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