多晶氧化铝纤维棉系采用溶胶-凝胶法制备，具有容重小、导热系数低、热震稳定性好、使用温度高、化学稳定性好、抗侵蚀性好等优良特性。在冶金、建材、陶瓷、航天军工等领域有广泛的应用。
  
  The polycrystalline alumina fiber prepared by sol-gel method is characterized by low volume weight, low thermal conductivity, good thermal shock resistance, high service temperature, good chemical stability and good corrosion resistance, etc. It is widely applied in metallurgy, building materials, ceramics, and aerospace industries.
  
  产品性能

  Product specification

产品号		A-95	A-80	A-72
Product brand
化学成分，% Chemical compositions	A1203	95	79-81	71-73
	Si02	≤5	21-19	29-27
	A1203 Si02	>99.5	>99.5	>99.5
纤维长度，mm		20-100
Fiber length
平均单丝拉伸强度，MPa		500	800	800
Average single fiber tensile strength
平均直径，Hm		3.7	3.9	4
Average diameter
渣球含量(>0.212mm),%		≤1	≤1	≤1
Slag-ball content
使用温度，℃		1700	1700	1600
Max.service temperature
包装规格		纸箱，净重3kg/箱
Packaging specificationz		Carton,NW 3kg /box

  
  1.制成纤维毡、板和各种异型纤维制品，用于1400℃以上的窑炉内衬。
  
  2.用于高温窑炉膨胀缝或短期隔热修补的填充材料。
  
  3.活塞、刹车片的增强材料或用于其它合金的增强。
  
  4.火箭发动机的热层或其它用于航天军工的热材料。
  
  5.欧Ⅲ及以上排放标准的汽车催化器衬垫材料。
  
  Application:
  
  1. Made into fiber insulating felt/board or special shaped fiber products used in furnaces with service temperature above 1 400 ℃
  
  2. Filling materials in expansion joints or short-term insulating patch
  
  3.Reinforcing materials of piston, brake block or other alloy composites
  
  4.Heat insulating layer of rocket motor or other insulating materials in aerospace industry.