Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Magnesium hercynite refractory material
The invention relates to a magnesium hercynite refractory material, and belongs to the technical field of refractory materials. The refractory material is mainly prepared from aggregate and powder, the aggregate comprises magnesia aggregate and hercynite aggregate; the powder comprises magnesia powder and hercynite pretreatment material; and the hercynite pretreatment material is prepared by a method comprising the following steps: performing oxidation treatment on hercynite powder in an oxidizing atmosphere. According to the refractory material, the oxidized hercynite pretreatment material is adopted, and volume expansion caused by gradual oxidation of Fe2+ in the high-temperature service process of the refractory material can be reduced; and in the high-temperature service process, the magnesia powder can participate in the reaction to form Mg(FeAl)2O4 which is enriched around the hercynite aggregate, so that Fe2+ in hercynite particles is prevented from being further oxidized, the volume expansion of the magnesium hercynite refractory material is further reduced, and the high-temperature stability of the magnesium hercynite refractory material is improved.
本发明涉及一种镁铁铝尖晶石耐火材料，属于耐火材料技术领域。该耐火材料主要由骨料和粉料制成；所述骨料包括镁砂骨料和铁铝尖晶石骨料；所述粉料包括镁砂粉料和铁铝尖晶石预处理料；铁铝尖晶石预处理料采用包括以下步骤的方法制得：将铁铝尖晶石粉料在氧化气氛中进行氧化处理。本发明的耐火材料采用经氧化处理的铁铝尖晶石预处理料，能够减小耐火材料高温服役过程中Fe2+逐步氧化带来的体积膨胀；并且高温服役过程中，镁砂粉料能够参与反应生成形成Mg(FeAl)2O4富集在铁铝尖晶石骨料周围，进而阻止铁铝尖晶石颗粒中的Fe2+进一步氧化，进一步减小镁铁铝尖晶石耐火材料的体积膨胀、提高其高温稳定性。
Magnesium hercynite refractory material
The invention relates to a magnesium hercynite refractory material, and belongs to the technical field of refractory materials. The refractory material is mainly prepared from aggregate and powder, the aggregate comprises magnesia aggregate and hercynite aggregate; the powder comprises magnesia powder and hercynite pretreatment material; and the hercynite pretreatment material is prepared by a method comprising the following steps: performing oxidation treatment on hercynite powder in an oxidizing atmosphere. According to the refractory material, the oxidized hercynite pretreatment material is adopted, and volume expansion caused by gradual oxidation of Fe2+ in the high-temperature service process of the refractory material can be reduced; and in the high-temperature service process, the magnesia powder can participate in the reaction to form Mg(FeAl)2O4 which is enriched around the hercynite aggregate, so that Fe2+ in hercynite particles is prevented from being further oxidized, the volume expansion of the magnesium hercynite refractory material is further reduced, and the high-temperature stability of the magnesium hercynite refractory material is improved.
本发明涉及一种镁铁铝尖晶石耐火材料，属于耐火材料技术领域。该耐火材料主要由骨料和粉料制成；所述骨料包括镁砂骨料和铁铝尖晶石骨料；所述粉料包括镁砂粉料和铁铝尖晶石预处理料；铁铝尖晶石预处理料采用包括以下步骤的方法制得：将铁铝尖晶石粉料在氧化气氛中进行氧化处理。本发明的耐火材料采用经氧化处理的铁铝尖晶石预处理料，能够减小耐火材料高温服役过程中Fe2+逐步氧化带来的体积膨胀；并且高温服役过程中，镁砂粉料能够参与反应生成形成Mg(FeAl)2O4富集在铁铝尖晶石骨料周围，进而阻止铁铝尖晶石颗粒中的Fe2+进一步氧化，进一步减小镁铁铝尖晶石耐火材料的体积膨胀、提高其高温稳定性。
Magnesium hercynite refractory material
一种镁铁铝尖晶石耐火材料
ZHAI PENGTAO (Autor:in) / LIU XIAOLEI (Autor:in) / REN XIANGYANG (Autor:in) / WANG YANCHAO (Autor:in) / ZHANG GENTING (Autor:in) / ZHAI YAOJIE (Autor:in) / CUI YUJIA (Autor:in) / LIU ZHAO (Autor:in) / LI XINLU (Autor:in)
24.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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