boron carbide
boron carbide
b4c
Boron
Carbide Nozzle
Boron carbide nozzle has the characteristics of high wear
resistance and high hardness,high compressive strength, strong impact
resistance,does not react with acid and alkali.Sintered by pure boron carbide
powder,improves sandblasting efficiency, and sandblasting jet is stable,service
life is very very long,wear resistance life of boron carbide nozzle is 5-10
times longer than that of tungsten steel.The boron carbide nozzle is gradually
replacing the cemented carbide (tungsten steel) and silicon carbide, silicon
nitride, alumina, zirconia and other materials.
We can supply series of boron carbide ceramic nozzle for
sandblasting,such as Boron carbide straight bore nozzle,straight bore nozzle
with screw thread,venture nozzle with screw thread, lead-in nozzle and so
on.Also we can make boron carbide nozzles according to your design.
Boron
Carbide Ring
Boron Carbide Ring has a wide application scop and high
interchargeability. It is compact in structure. The drive collar is clamped by
the drive lug to prevent the spring from dropping. It is reliable in
performance and widely used in petrochemical pumps.
B4C
bullet proof ceramic
B4C Ceramic bullet proof plate is widely used in heavy armored
protection in planes/tanks/ships, and high-class physical protection
High Hardness is about HV3300,low density is about 2.5g/cm3
Boron carbide bullet proof ceramic is much better than Silicon Carbide and
Aluminum Oxide material
B4C
Ceramic Liner
Just send us your drawing.We make for you.
The boron carbide ceramic lining also can be according to your
tolerance,flatness and so on
Boron carbide ceramic is one kind of technical ceramic,also can
be called advance ceramic and engineering ceramic.We are professional for
providing boron carbide ceramic solutions for you in shanghai in china.
We are professional for providing boron carbide ceramic
solutions in shanghai in china.
Boron carbide commonly known as man-made diamond, is a kind of
very high hardness boride.Boron Carbide Ceramics is very light technical
ceramic material (about 2.5 g/cm3) as well as the hardest (be next only to
diamond).Boron carbide is more stiffer and more hard than silicon carbide or
tungsten carbide
Boron carbide, B4C, is one of the hardest materials in the
world, ranking third behind diamond and cubic boron nitride, and it is the
hardest material produced in tonnage quantities. Discovered as a byproduct in
the production of metal borides during the 19th century, it is produced by
reacting carbon with B2O3 in an electric arc furnace through carbo-thermal
reduction or gas phase reactions. Boron carbide must be milled and purified to
remove metal impurities prior to commercial use.
Boron carbide, the molecular formula B4C, usually of black
powder. Commonly known as man-made diamond, is a kind of very high hardness
boride. And acid, alkali solution can not react, easy to manufacture and
relatively cheap price. Widely used in hard material grinding, grinding,
drilling and other.Mohs hardness is 9.3.
It is widely used in ballistic armor systems, Nozzles,Seal ring,
Shaft sleeve, Nuclear Industry Materials,Grinding Materials,wear resistant
lining and so on.Also we can make according to your requirement.
Indicators for boron carbide ceramic
Density≥2.48g/cm³
Mico Hardness≥3500(kgf/mm2)
Bending Strength≥400(Mpa)
Melting Point 2450℃
Operating environment High temperature,high
grinding,high pressure,strong acid and alkali
boron
carbide
Boron Carbide Machining & Grinding
Boron Carbide can be machined in green, biscuit, or fully dense
states. While in the green or biscuit form it can be machined relatively easily
into complex geometries. However, the sintering process that is required to
fully densify the material causes the Boron Carbide body to shrink
approximately 20%. This shrinkage means that it is impossible to hold very
tight tolerances when machining Boron Carbide pre-sintering. In order to
achieve very tight tolerances, fully sintered material must be machined/ground
with diamond tools. In this process a very precise diamond coated
tool/wheel is used to abrade away the material until the desired form is
created. Due to the inherit hardness of the material, this can be a time
consuming and costly process.
Boron Carbide Applications
Abrasives
Due to its high hardness, Boron Carbide Powder is used as an
abrasive in polishing and lapping applications also as a loose abrasive in
cutting applications such as water jet cutting. It can also be used for
dressing diamond tools.
Nozzles
The extreme hardness of Boron Carbide (B4C) gives it excellent
wear and abrasion resistance and as a consequence it finds application as
nozzles for slurry pumping, grit blasting and in water jet cutters.
Nuclear Applications
Its ability to absorb neutrons without forming lived
radio-nuclides make the material attractive as an absorbent for neutron
radiation arising in nuclear power plants. Because of its B10 isotope Boron
Carbide applications include shielding and control rod and shut down pellets.
Ballistic Armour
Boron Carbide (B4C) in conjuction with other materials also find
use as ballistic armour for personal and military use, the combination of high
harness, elastic modulus and low density give the material an exceptionally
high specific stopping power to protect high velocity projectiles.
Combustion in Solid Fuel Ramjets
boron
carbide ceramic
The effect of bypass air momentum on the combustion efficiency
of a Boron Carbide fueled solid fuel ramjet has been investigated
theoretically. A 3D model of the flow in the aft-burner has been developed and
solve numerically. The theoretical results indicate that combustion efficiency
can be increased by employing bypass air with low dump momentum, in agreement
with experimental results. High bypass air dump momentum was shown to enhance
extinguishing of particle combustion through increased collisions with the
motor walls.
Other Applications
Boron Carbide evaporation boats for material testing mortars and
pestles, ceramic tooling dies, precision toll part.
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