Hexagonal Boron Nitride Break Rings For Metal Casting

We are engaged in manufacturing exporting and supplying an excellent quality Hexagonal Boron Nitride Break Rings For Metal Casting in Xiamen Fujian China. Boron Nitride is a synthetic technical ceramic material which is available in powder solid aerosol and liquid forms. It has out-standing thermal characteristics; high thermal conductivity and excellent thermal shock resistance and is stable in inert and reducing atmospheres up to 2000 C and in oxidizing atmospheres to 850 C. In its solid form Boron Nitride can easily be machined to close tolerances in virtually any shape. After machining it is ready for use without additional heat treating or firing operations.

Boron Nitride Properties:
*Excellent thermal shock resistance
*High electrical resistivity
*Low density
*High thermal conductivity
*Isotropic (thermal conductance is different in different planes)
*Corrosion resistant
*Good chemical inertness
*High temperature material
*Excellent lubricating properties
*Low coefficient of friction
*Non-wetting (without oxidization)
*High dielectric breakdown strength
*Excellent Machinability

Typical Uses of Boron Nitride
*Electronic parts - heat sinks substrates coil forms prototypes
*Boron doping wafers in silicon semiconductor processing
*Vacuum melting crucibles
*CVD crucibles
*Microcircuit packaging
*Sputtering targets
*High precision sealing brazing and metallizing fixtures
*Microwave tubes
*Horizontal caster break rings