La description
HBN is one of the three kinds of BN crystal structures, it belongs
to hexagonal system with graphite-like structure, so often called
“White Graphite”. HBN is a kind of white powder of loose,
lubricious and easy moisture absorption with theoretical density
2.*7g/cm3 , Moh’s hardness 2, low mechanical strength , but high
than graphite. It has fine insulation, thermal conductivity,
chemical corrosion resisting property, anti-oxygenation property
and lubricating property. It has strong neutron absorbent power.
Because of its stable chemical property, it is not reactive to
almost every melting metals. It can bear high temperature of
***0***1;, thus has the fine property of mechanical process.
(1). Because of the chemical stability of HBN, we can use it to
manufacture crucible, boats and liquid metal carrier pipes for
smelting evaporation metals, rocket injections, large power device
basements, and pipes, pump parts, models of cast steel for smelting
metals, etc. (2). Because of the heat-durability and stain
resistance of HBN, we can use it to manufacture high temperature
structural pants, liner of rocket chamber, thermal shield for
spaceships and corrosion resisting parts for magneto hydrodynamic
generators. (3). Because of its insulation, HBN can be used widely
in isolators for high pressure & high frequency electricity,
insulators of various heaters, drive pipes for heating pipes,
radiating units/parts of high-temperature, -frequency, and
-pressure, and materials for high-frequency applied furnaces. (4).
Because of its lubricating properties, HBN can be dispersed in
heat-resistant lubricating oil & grease, water or solvents; It
can be formed into dry film through solvent volatizing after being
sprayed on the friction surface ; It can be used as compound
materials for high temperature resistant when filling into the
surface-layers of resins, ceramics & metals. HBN powder can be
coated directly on the guide surface in aerospace engineering;
Because of the whit
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