Silica fume for interior wall brick

Silica fume for interior wall brick: This microsilica is commonly used in the manufacture of interior tiles to increase the glossiness of the glaze and other properties of the tiles. Reduce the firing temperature: traditional ceramic raw materials are mainly kaolin, is a silicon-aluminium system, using high-temperature firing (1250 ~ 1350 ℃), the generation of the crystalline phase is mainly mullite. The introduction of silica fume for ceramics constitutes silicon-aluminium-calcium low eutectic system, the main crystalline phase is calcium feldspar. silica fume for ceramics and kaolinite should be generated calcium feldspar temperature of 900 ~ 1000 ℃, compared with kaolinite to generate mullite reaction temperature is much lower. Shorten the firing cycle: due to silica fume for ceramics particles are needle-like, in the body drying and firing process, silica fume for ceramics needle-like crystals become a channel for moisture escape, so drying and firing fast, thus sho…

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