In the ceramic industry, as a key refractory material, high alumina brick has many very important uses, and has a profound impact on all aspects of ceramic production and the quality of the final product.
1. Kiln lining construction
Ceramic kilns need to withstand high temperature environments during the firing process, and the high refractoriness characteristics of high alumina bricks make them ideal for kiln linings. Its refractoriness is usually up to 1750℃ -1790 ℃, which can easily cope with the high temperature needs of ceramic firing, whether it is the traditional tunnel kiln, shuttle kiln, or modern roller kiln and other types of kiln, high alumina brick can provide a stable and reliable lining structure. In the process of high temperature firing, high alumina bricks can effectively isolate the high temperature environment in the kiln from the outside world, reduce heat loss, improve energy utilization efficiency, and create good conditions for uniform heating and full sintering of ceramic products. For example, when firing high-grade porcelain, the high alumina brick lining of the kiln can accurately maintain the stability of the temperature in the kiln, ensuring that the porcelain completes complex physical and chemical changes under a specific high temperature curve, making the texture of the porcelain more dense and the glaze more smooth and bright, thus improving the quality and yield of the ceramic products.
2. Saggar manufacturing
The saggar plays a key role in bearing and protecting the ceramic body in the process of ceramic firing. High alumina brick is widely used in the manufacture of saggar because of its high strength and good thermal shock resistance. During multiple high-temperature firing cycles, the saggar is subjected to rapid temperature changes and possible chemical reactions with the ceramic body. The saggar made of high alumina bricks can maintain its structural integrity during frequent heating and cooling processes and is not prone to cracking or deformation. This not only ensures the service life of the saggar itself, reduces the production cost, but more importantly, provides a stable firing space for the ceramic billet, avoids the defects of ceramic products caused by the saggar damage, ensures the stability and consistency of ceramic products in the firing process, and contributes to the smooth progress of large-scale, high-quality ceramic production.
3. Roller kiln roller rod
In roller kiln, the roller rod is an important part of transporting the ceramic billet through the kiln for firing. The roller made of high alumina brick has excellent high temperature resistance, good mechanical strength and thermal shock resistance. In the high temperature firing environment, the roller can continue to operate stably, and accurately transport the ceramic body to various temperature areas to ensure the heat uniformity of the ceramic body in the firing process. Its high mechanical strength enables it to withstand the weight of the ceramic body as well as the friction generated during rotation, while thermal shock resistance enables it to adapt to rapid temperature changes in different temperature zones in the kiln, reducing the risk of roller breakage or bending. The use of high alumina brick rollers helps to improve the operating efficiency and reliability of roller kilns, and then improves the production efficiency and quality stability of ceramic products, which is of great significance for the automation and continuous production of modern ceramic industry. In short, high alumina bricks with its excellent fire resistance, good mechanical strength and thermal shock resistance and other characteristics, occupy an indispensable position in the ceramic industry, from the kiln lining to the saggar, roller and other key components, for the efficient production of ceramics, high-quality development provides a solid guarantee, effectively promote the technological progress and development of the ceramic industry.
