ceramic tube

详情

Place of Origin Shandong, China (Mainland) Type Ceramic Tubes Brand Name DKJL Al2O3 ****9.5% Temp ***0 degree C density 2.6kg/m3 Al2O3: ****9.5% Chemical competent Al2O3 ****9.5% SiO2 <*2% Fe2O3 <0.5% Alkaline matter <2.5% Density 2.6 g/cm3 Hardness 7 M Water absorption <0.2% Rupture strength >***0kg/cm2 Gas tightness Kept for ten minutes at negative pressure of 1.3Kpa. The pressure drop is less than 0.3Kpa. Heat tolerance Insert the pipe into the furnace at a depth of *0mm. Heat to ***0 and maintain for *0 minutes. Alkali tolerance In the Na2CO3 solution of 2N concentration, boil for *5 hours with the weight loss not greater than *0mg/dm2. Volume resistance >2**0(5) Ω·cm/***0 Breakdown voltage *8kv/cm Expansion coefficient 5**0(*8) Temperature for use Long-term: ***0 Short-term: ***0 Chill and abrupt heat ***0~room temperature not cracking thrice