Hot-Press Boron Nitride BN nozzles for amorphous soft magnetic alloy spray tapes and metal powders gas atomization

Boron nitride belongs to the hexagonal system. Its structure is similar to graphite, and their properties are also similar. Therefore, it is also called " white graphite". It has good heat resistance, thermal stability, thermal conductivity, high temperature dielectric strength, and is an ideal heat dessipating material and high temperature insulatiing material. Mohs Hardness 2 can be processed into various shaped parts.

Performance

1. Operating temperature: 1900℃ in vacuum, 2100℃ in the case of nitrogen, argon and other inert gases, and 900℃ in the case of oxidation resistance.
2. It has extremely strong thermal shock resistance and can be cooled rapidly for 15 minutes at 1000 degrees to room temperature for 100 times without cracking.
3. It has good corrosion resistance, good chemical stability and small thermal expansion coeffcient.
4. Excellent electrical performance: excellent insulation at high temperature, which will not significantly decease with the incerase of temperature. The breakdown voltage is 3KV/MV, the low dielectric loss is 2.5x10-4 at 108HZ, and the dielectric constant is 4, which can penetrate microwave and infrared ray.
5. With many metals, glass solution does not bod does not react.

The main products of Boron Nitride Ceramics

Hot pressing hexagonal boron nirtride ceramic and boron nitride composite ceramic, includes:

• Insulation tubes, sleeve, and parts for vacuum furnace
• nozzles for amorphous soft magnetic alloy spray tapes and metal powders gas atomization
• horizontal continuous casting separation rings/crystal tubes
• crucibles, composite ceramic molds
• TiB2/graphite composite ceramic cathodes for electrolytic aluminum
• graphite/BN ceramic composite evaporator boats for vacuum evaporation and aluminum plating
• large and medium-sized vacuum hot pressing furnaces
• large size hot pressing molds, etc.

Boron Nitride Nozzle Basic Information & Materials