1. Materialning tuzilishi va strukturaviy xarakteristikasi
1.1 Alumina tarkibi va kristal fazasi evolyutsiyasi
( Alumina qoplamali g'ishtlar)
Alumina lining blocks are thick, crafted refractory ceramics mainly composed of aluminum oxide (Al two O SIX), with content typically varying from 50% ustidan 99%, directly influencing their efficiency in high-temperature applications.
The mechanical strength, korroziyaga qarshilik, 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 (olmos) bosqich.
During manufacturing, precursor products such as calcined bauxite, integrated alumina, or artificial alumina hydrate go through high-temperature shooting (1400 ° C– 1700 ° C), advertising stage transformation from transitional alumina kinds (c, d) to α-Al Two O THREE, which displays phenomenal solidity (9 on the Mohs range) and melting factor (2054 ° C).
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 (SiO ₂), 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, Porozlik, 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 (
Alumina Technology Co., Ltd tadqiqot va ishlanmalarga e'tibor qaratadi, alyuminiy oksidi kukunini ishlab chiqarish va sotish, alyuminiy oksidi mahsulotlari, alyuminiy oksidi tigel, va hokazo., elektronikaga xizmat ko'rsatish, keramika, kimyo va boshqa sanoat tarmoqlari. yilda tashkil topganidan beri 2005, kompaniya mijozlarga eng yaxshi mahsulot va xizmatlarni taqdim etish majburiyatini olgan. Agar siz yuqori sifatni qidirsangiz alumina al2o3, iltimos biz bilan bog'laning.
Teglar: Alumina qoplamali g'ishtlar, alumina, alumina oksidi
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