High Quality brown corundum棕刚玉磨料

供应****棕刚玉耐火材料用棕刚玉=*棕刚玉

棕刚玉以****铝矾土为原料，*煤，铁霄，通过采用在电弧冶炼。炉2200℃以上高温中提纯、除杂、结晶、分选、*碎、磁选、筛分等加工手段制成各种颗粒尺寸的产品。其质地致密、硬度高，粒形成球状，适用于制造陶瓷、树脂高固结磨具以及研磨、抛光、喷砂、精密铸造等，还可用于制造*耐火材料。棕刚玉具有纯度高，结晶好，流动性强，线膨胀系数低，耐腐蚀的特点。经数十家耐火生产企业实践验证，该产品在应用过程中具有不起爆、不粉化、不开裂的特点。

星光牌****棕刚玉耐火材料用棕刚玉=*棕刚玉

产品粒度按*以及各*准生产，可按用户要求粒度进行加工。通用粒度号为F4~F320，其化学成份视粒度大小而不同。突出的特点是晶体尺寸小耐冲击，因用自磨机加工*碎，颗粒多为球状颗粒，锐石牌棕刚玉具有纯度高，质地致密，堆积密度大，自锐性强，韧性好，磁性物含量特低的特点，用其制成的磨具磨削锋利，发热率低，磨削比高，且使用时沾附少；制成的烧结磨具具有烧成后颜色深蓝、不起网状裂纹、无锈斑的特点，适用于制造陶瓷、树脂高固结磨具以及研磨、抛光等。

星光牌****棕刚玉耐火材料用棕刚玉=*棕刚玉

低碳棕刚玉经过炉前和特殊工艺的再处理，降低棕刚玉中残余碳的含量，使产品在使用中不粉化、不爆裂、韧性大是磨料磨具行业，耐火材料行业的****原料。主要用于陶瓷磨具、****磨具、有机磨具、砂带、涂附磨具等，　根据残碳含量分为：煅烧棕刚玉C ≤0.05%、低碳棕刚玉C ≤0.10%、普通棕刚玉C ≤0.15%。

星光牌****棕刚玉耐火材料用棕刚玉=*棕刚玉

F为固结磨具及喷砂用规格P为涂附磨具用规格W为微粉，320#即W40

常用规格：磨料磨具F1#-63#4#—80#90#—150#180#—240#

段砂0-1mm，1-3mm，3-5mm5-8mm，8-12mm25-0mm10-0mm

50-0mm30-0mm

细粉180#-0，200#-0320#-0

物理性能：晶形三方晶系

化学性质*与酸反应在****中和****中稍有腐蚀与碱反应仅与强碱热溶液稍有反应氧化还原效果否

硬度努谱硬度2000-2200Kg/mm2莫氏硬度9.0

颜色深棕色煅烧后颜色深蓝

熔点2250C

****使用温度1900C

棕刚玉理化指标：

Brown aluminium oxide

With bauxite, carbon material, iron filings as raw materials, Brown Fused Alumina is restored and obtained through the melting of the brown the brownartificial corundumin the furnace above 2200 ℃, and made of*ariety of particle sizes products by purifying, crystallizati*orting, crushing, magnetic separation and screening methods. With its dense texture, high hardness and the formation of spherical particles, it is suitable for the manufacture of ceramics and resin, as well as the high-Bonded Abrasives grinding, polishing, sand blasting, precision casting and so on, also can be used to manufacture high-grade refractory material.

Brown Fused Alumina has high purity, good crystalline liquidity, low coefficie*f linear expansion, corrosion-resistant and other characteristics. Dozens of refractory manufacturers h*e proved in practice that the product has no*tonate, non-powder, non-cracking characteristics in the application process.

Particle size is in accordance with international standa* and can be processed as requirements. Universal size: No. F4 ~ F320, its chemical com*ition varies depending on grain size. Its prominent feature is the *all crystal size, impact resistance and spherical particles. This product has high purity, dense texture, large bulk density, strong self-sharpenin*ood toughness, low level magnetic material content and other characteristics.