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  多晶氧化鋁纖維棉系采用溶膠-凝膠法制備，具有容重小、導熱系數(shù)低、熱震穩(wěn)定性好、使用溫度高、化學穩(wěn)定性好、抗侵蝕性好等優(yōu)良特性。在冶金、建材、陶瓷、航天軍工等領(lǐng)域有廣泛的應用。
  
  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.
  
  產(chǎn)品性能

  Product specification

產(chǎn)品號		A-95	A-80	A-72
Product brand
化學成分，% Chemical compositions	A1203	95	79-81	71-73
	Si02	≤5	21-19	29-27
	A1203 Si02	>99.5	>99.5	>99.5
纖維長度，mm		20-100
Fiber length
平均單絲拉伸強度，MPa		500	800	800
Average single fiber tensile strength
平均直徑，Hm		3.7	3.9	4
Average diameter
渣球含量(>0.212mm),%		≤1	≤1	≤1
Slag-ball content
使用溫度，℃		1700	1700	1600
Max.service temperature
包裝規(guī)格		紙箱，凈重3kg/箱
Packaging specificationz		Carton,NW 3kg /box

  
  1.制成纖維氈、板和各種異型纖維制品，用于1400℃以上的窯爐內(nèi)襯。
  
  2.用于高溫窯爐膨脹縫或短期隔熱修補的填充材料。
  
  3.活塞、剎車片的增強材料或用于其它合金的增強。
  
  4.火箭發(fā)動機的熱層或其它用于航天軍工的熱材料。
  
  5.歐Ⅲ及以上排放標準的汽車催化器襯墊材料。
  
  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.