Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a lightweight thermal shock resistant mullite-cordierite rotating tube, which is prepared by taking high-purity sintered mullite with different particle sizes as a main raw material and introducing a certain content of cordierite pre-synthesized powder. After uniform mixing and molding, in a high-temperature heat treatment process, the cordierite pre-synthesized powder is subjected to a high-temperature in-situ reaction to form a cordierite phase, and the cordierite phase and an original mullite phase form microscale combination. The multiphase material has the advantages of mullite and cordierite, namely lower volume density, lower thermal expansion coefficient and higher thermal shock resistance.
本发明公开的轻质抗热震莫来石堇青石质旋转管，是以不同粒度的高纯烧结莫来石为主要原料，并引入了一定含量的堇青石预合成粉。混合均匀成型后，在高温热处理过程中，堇青石预合成粉发生高温原位反应形成堇青石相，与原有的莫来石相形成微观尺度的结合。这种复相材料兼具莫来石和堇青石的优点，即较低的体积密度，较低的热膨胀系数，较高的抗热震性。
The invention discloses a lightweight thermal shock resistant mullite-cordierite rotating tube, which is prepared by taking high-purity sintered mullite with different particle sizes as a main raw material and introducing a certain content of cordierite pre-synthesized powder. After uniform mixing and molding, in a high-temperature heat treatment process, the cordierite pre-synthesized powder is subjected to a high-temperature in-situ reaction to form a cordierite phase, and the cordierite phase and an original mullite phase form microscale combination. The multiphase material has the advantages of mullite and cordierite, namely lower volume density, lower thermal expansion coefficient and higher thermal shock resistance.
本发明公开的轻质抗热震莫来石堇青石质旋转管，是以不同粒度的高纯烧结莫来石为主要原料，并引入了一定含量的堇青石预合成粉。混合均匀成型后，在高温热处理过程中，堇青石预合成粉发生高温原位反应形成堇青石相，与原有的莫来石相形成微观尺度的结合。这种复相材料兼具莫来石和堇青石的优点，即较低的体积密度，较低的热膨胀系数，较高的抗热震性。
Lightweight thermal shock resistant mullite cordierite rotating pipe and preparation method thereof
一种轻质抗热震莫来石堇青石质旋转管及其制备方法
02.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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