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PROTECTIVE SLEEVE

PRODUCT DESCRIPTION
1. Electrode insulating sleeve for vacuum sintering furnace and atmosphere furnace
2. Thermocouple protective sleeve
3. Insulation fittings for vacuum coating equipment
4. Insulation fittings for polysilicon ingot foundry
5. Metal, glass and other molding molds
6. Used for sintering and smelting alloy, Ceramic substrate , rare earth and other materials.

Performance index

                                           Grade
Typical Value
BN-HSBN-HQBN-HC
Purity (%)BN>99.7%BN>99.3%BN>99%
ColorWhiteWhiteWhite
Density (g/cm3)1.3-1.41.5-1.61.9-2.0
Oxygen content (%)≦0.1≦0.1≦0.1
Volume resistivity (Ω・cm)>1014>1014>1014
Operating temp
(℃)
  Air≦900≦900≦900
Inert gas≦2100≦2100≦2100
Vacuum≦1900≦1900≦1900
Bending strength (MPa)183040
Coefficient of thermal expansion (10-6/℃)-0.4-0.41.5
Thermal conductivity (W/m・K)605035

 

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