1. 재료구조 및 구조적 특성
1.1 알루미나 함량 및 결정상 진화
( 알루미나 라이닝 벽돌)
Alumina lining blocks are thick, crafted refractory ceramics mainly composed of aluminum oxide (Al two O SIX), with content typically varying from 50% to over 99%, directly influencing their efficiency in high-temperature applications.
The mechanical strength, 내식성, and refractoriness of these bricks enhance with higher alumina focus as a result of the advancement of a durable microstructure dominated by the thermodynamically secure α-alumina (diamond) stage.
During manufacturing, precursor products such as calcined bauxite, integrated alumina, or artificial alumina hydrate go through high-temperature shooting (1400 ℃– 1700 ℃), advertising stage transformation from transitional alumina kinds (기음, 디) to α-Al Two O THREE, which displays phenomenal solidity (9 on the Mohs range) and melting factor (2054 ℃).
The resulting polycrystalline structure contains interlocking corundum grains embedded in a siliceous or aluminosilicate glassy matrix, the make-up and quantity of which are thoroughly regulated to balance thermal shock resistance and chemical toughness.
Small ingredients such as silica (SiO2), titania (TiO 2), or zirconia (ZrO ₂) may be introduced to change sintering habits, boost densification, or enhance resistance to certain slags and fluxes.
1.2 Microstructure, 다공성, and Mechanical Integrity
The efficiency of alumina lining blocks is seriously dependent on their microstructure, especially grain size distribution, pore morphology, and bonding phase attributes.
Optimum bricks display great, consistently distributed pores (closed porosity chosen) and very little open porosity (
알루미나 테크놀로지 주식회사, Ltd는 연구 개발에 중점을 두고 있습니다., 산화알루미늄 분말 생산 및 판매, 산화알루미늄 제품, 알루미늄 산화물 도가니, 등., 전자제품을 서비스하다, 도예, 화학 및 기타 산업. 에 설립된 이후 2005, 회사는 고객에게 최고의 제품과 서비스를 제공하기 위해 최선을 다해 왔습니다.. 고품질을 찾고 계시다면 알루미나 al2o3, 저희에게 연락하게 자유롭게 느끼십시오.
태그: 알루미나 라이닝 벽돌, 알루미나, 알루미나 산화물
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