白剛玉是以優(yōu)質鋁氧化粉為原料,經(jīng)電熔提煉結晶而成, 純度高、自銳性好、耐酸堿腐蝕、耐高溫、熱態(tài)性能穩(wěn)定它硬度略高于棕剛玉,韌性稍低,純度高、自銳性好、磨削能力強、發(fā)熱量小、效率高、耐酸堿腐蝕、耐高溫熱穩(wěn)定性好。用其制成磨具,適用于磨削高碳鋼、高速鋼及不銹鋼等細粒度磨料還可以用于精密鑄造和高級耐火材料。
White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.
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