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Ferrotitanium nitride material and preparation method thereof
The invention relates to a ferrotitanium nitride material and a preparation method thereof, and belongs to the field of high-temperature materials. The titanium-iron nitride comprises the following components in percentage by mass: 70%-96% of TiN, 3%-29% of Fe and the balance of impurities. The preparation method comprises the following steps: carrying out crushing pretreatment on ilmenite, uniformly mixing the ilmenite with carbon powder and a resin binder, and pressing into pellets; and the pellets are placed in a graphite crucible, nitrogen is introduced into an intermediate frequency furnace, and electromagnetic induction is utilized for heating. The method comprises the following steps: firstly, heating a graphite crucible to be greater than or equal to 1400 DEG C by utilizing electromagnetic induction, so that pellets in contact with the graphite crucible are subjected to a reduction nitridation reaction to generate a ferrotitanium nitride material; tiN and Fe have good electrical conductivity, the newly generated TiN-Fe is further heated through electromagnetic induction, the reduction nitridation reaction of the internal pellets is promoted, and the reaction is pushed inwards layer by layer till the end. The prepared TiN-Fe material is excellent in erosion resistance and has wide application prospects in the fields of stemming, blast furnace gunning materials and the like, and the preparation process is short in process, short in reaction time and high in efficiency.
本发明涉及一种氮化钛铁材料及其制备方法，属于高温材料领域。所述氮化钛铁包括如下质量百分比的组分：70％～96％的TiN、3％～29％的Fe，其余为杂质。其制备方法包括：将钛铁矿破碎预处理，与碳粉、树脂结合剂混合均匀后压成球团；将球团置于石墨坩埚中，在中频炉内通入氮气利用电磁感应加热。本发明利用电磁感应首先将石墨坩埚加热至≥1400℃，使与石墨坩埚接触的球团发生还原氮化反应，生成氮化钛铁材料；TiN和Fe均具有良好的导电性，利用电磁感应进一步给新生成的TiN‑Fe加热，促进内部球团的还原氮化反应，反应逐层向内推进直至结束。本发明制备的TiN‑Fe材料抗侵蚀性能优异，在炮泥、高炉喷补料等领域有广阔的应用前景，且制备工艺流程短，反应时间短，效率高。
Ferrotitanium nitride material and preparation method thereof
The invention relates to a ferrotitanium nitride material and a preparation method thereof, and belongs to the field of high-temperature materials. The titanium-iron nitride comprises the following components in percentage by mass: 70%-96% of TiN, 3%-29% of Fe and the balance of impurities. The preparation method comprises the following steps: carrying out crushing pretreatment on ilmenite, uniformly mixing the ilmenite with carbon powder and a resin binder, and pressing into pellets; and the pellets are placed in a graphite crucible, nitrogen is introduced into an intermediate frequency furnace, and electromagnetic induction is utilized for heating. The method comprises the following steps: firstly, heating a graphite crucible to be greater than or equal to 1400 DEG C by utilizing electromagnetic induction, so that pellets in contact with the graphite crucible are subjected to a reduction nitridation reaction to generate a ferrotitanium nitride material; tiN and Fe have good electrical conductivity, the newly generated TiN-Fe is further heated through electromagnetic induction, the reduction nitridation reaction of the internal pellets is promoted, and the reaction is pushed inwards layer by layer till the end. The prepared TiN-Fe material is excellent in erosion resistance and has wide application prospects in the fields of stemming, blast furnace gunning materials and the like, and the preparation process is short in process, short in reaction time and high in efficiency.
本发明涉及一种氮化钛铁材料及其制备方法，属于高温材料领域。所述氮化钛铁包括如下质量百分比的组分：70％～96％的TiN、3％～29％的Fe，其余为杂质。其制备方法包括：将钛铁矿破碎预处理，与碳粉、树脂结合剂混合均匀后压成球团；将球团置于石墨坩埚中，在中频炉内通入氮气利用电磁感应加热。本发明利用电磁感应首先将石墨坩埚加热至≥1400℃，使与石墨坩埚接触的球团发生还原氮化反应，生成氮化钛铁材料；TiN和Fe均具有良好的导电性，利用电磁感应进一步给新生成的TiN‑Fe加热，促进内部球团的还原氮化反应，反应逐层向内推进直至结束。本发明制备的TiN‑Fe材料抗侵蚀性能优异，在炮泥、高炉喷补料等领域有广阔的应用前景，且制备工艺流程短，反应时间短，效率高。
Ferrotitanium nitride material and preparation method thereof
一种氮化钛铁材料及其制备方法
MA CHENHONG (author) / LI YONG (author) / SUN JIALIN (author) / ZHENG QINGYAO (author)
2024-04-16
Patent
Electronic Resource
Chinese
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