超低鈉白剛玉磨料 F20-F220 Na2O<0.1% 砂輪原材料白剛玉 耐火材料低鈉白剛玉
白剛玉是以**氧化鋁粉為原料,在2050℃高溫下熔煉而成,它具有純度高、自銳性好、磨削時發(fā)熱量小、耐酸堿、高溫穩(wěn)定性好、氣孔率低等優(yōu)點。
電熔白剛玉是生產(chǎn)中高檔不定型和定型耐火材料的主要原料,常用于鋼包澆注料、鐵溝料、耐火噴補料等不定型耐火制品;在定型耐材中,它主要用在剛玉磚、剛玉莫來石質匣缽、精煉用剛玉多孔塞磚、整體噴槍、煉鋼連鑄三大件、超高溫工業(yè)窯爐內襯等剛玉制品。它又是磨料磨具行業(yè)**原料,主要用在砂輪磨具、拋光研磨行業(yè),在軍工、造船、玻璃、航空、航天、光學儀器、核能等行業(yè)有廣泛的前途。
White fused alumina is made from excellent industrial alumina and melted in arc furnaces at high temperature of 2050℃.It is featured by high purity, good self-sharpening, low grinding heat output, acid-alkali and corrosion resistance, good stability at high temperature, and low porosity, etc.
As the main raw material for producing middle/high-class monolithic refractories or formed refractory products, white fused corundum is used primarily for ladle castable, iron runner castable gunning refractory or other monolithic refractory products. As for formed refractories, it’s chiefly used in producing corundum bricks, corundum-mullite saggers, refining-used corundum porous plug bricks, integral blowing lance, three-piece for steel making con-casting production, ultra-high temperature industrial furnace lining, and other corundum products. It’s also the high-quality raw material in abrasives industries, mainly used for producing grinding wheel, grinding and polishing tools, as well as the most promising material with bound less prospects used in military, ship building, glass making, aerospace, optical-instrument-manufacturing, nuclear power plants construction and other industries.
白剛玉化學成分表the chemical composition table of White fused alumina:
化學成分及粒度范圍 Chemical composition & grain size range | 化學成份 chemical composition(%) | ||||
Al2O3 | SiO2 | Fe2O3 | Na2O | ||
WA | F20-F80 | 99.0-99.7 | ≤0.05 | ≤0.08 | ≤0.15 |
F90-F150 | 99.0-99.5 | ||||
F180-F280 | 99.0-99.3 | ≤0.05 | ≤0.08 | ≤0.2 |
白剛玉磨料的堆積密度 bulk density of the white fused alumina abrasive:
粒度號 Grain size | 堆積密度范圍值 Bulk density range | 粒度號 Grain size | 堆積密度范圍值 Bulk density range |
F16# | 1.98-2.05 | F60# | 1.65-1.75 |
F20# | 1.95-2.00 | F70# | 1.62-1.70 |
F22# | 1.90-1.98 | F80# | 1.60-1.70 |
F24# | 1.85-1.95 | F90# | 1.59-1.69 |
F30# | 1.82-1.92 | F100# | 1.57-1.67 |
F36# | 1.80-1.88 | F120# | 1.55-1.65 |
F40# | 1.80-1.86 | F150# | 1.53-1.63 |
F46# | 1.72-1.82 | F180# | 1.52-1.61 |
F54# | 1.68-1.78 | F220# | 1.50-1.60 |
產(chǎn)品磁性物含量magnetic material amount of product (%) (GB/T2479-2008) :
粒度范圍 Grain size value | 磁性物含量magnetic material amount % | 不多于not more than |
WA和WA-P | WA和WA-B | |
F4-F30 P12-P30 | 0.0023 | 0.0040 |
F36-F60 P36-P60 | 0.0022 | 0.0035 |
F70-F120 P80-P120 | 0.0021 | 0.0030 |
F150-F220 P150-P220 | 0.0016 | 0.0025 |