What
is
Carbide?
Carbide is a cemented matrix
of tungsten carbide particles in cobalt. The
formation of the tip material is similar in concept to
concrete in which sand and gravel are cemented together
with a limestone clay mixture. In carbide, the tungsten
carbide particles are embedded in cobalt. To manufacture
carbide, the tungsten carbide particles are first mixed
together as fine powders and heated to 2700-2800 degrees F.
Once the tungsten and carbide have combined, cobalt is
added and the mixture is subjected to pressures in a die of
up to 30 tons. The resulting tools shape is then heated in
two stages (presintering and sintering) in an atmosphere
controlled furnace to achieve final
hardness.
Why
use
Carbide?
Carbide is extremely hard
and not subject to mechanical deformation in use.
It is up to 20 times more resistent to wear than the
finest saw steel. Finally, it is cost effective since
carbide tips can be replaced simply and easily when they
are worn out. Saw blade life is greatly extended while
cutting quality and speed are maintained throughout the
life of the blade.