中溫煅燒磨料是在原棕剛玉生產過程中進行中溫緞燒，然后再進行炯火處理。其主要特點為:膨脹系數小、親水性好、韌性高、強度大、制成的燒結磨具具有燒成后顏色深藍、不起網狀裂紋、無銹斑的特點，因此提高了磨具加工時的精度和磨削效果，尤其適應生產高檔固結磨具。This kind of Brown Fused Alumina grains is calcined at the medium high temperature, and with the anneal treatment.lt is characterized by very lowcoefficient of linear expansion,very good hydrophilicity, good toughness and high hardness, producing the sintered grinding tools that is characterizedby deep blue color after firing, without resillage, without rust and so on. So our this kind of product increase the precision and grinding ablity of thegrinding tools in the using course. Brown Fused Alumina with medium high temperature treatment is applicable to make high quality bonded abrasives.