Titanium is a metal element, below 0.83mm titanium particles are called titanium powder. Titanium powder can be divided into pure titanium powder, alloy titanium powder, titanium hydride powder, metal titanium powder, sponge titanium powder, titanium nitride powder, titanium carbide powder.
Titanium is a metal element, below 0.83mm titanium particles are called titanium powder. Titanium powder can be divided into pure titanium powder, alloy titanium powder, titanium hydride powder, metal titanium powder, sponge titanium powder, titanium nitride powder, titanium carbide powder.
Titanium powder is silver gray powder, can be
burned in a nitrogen atmosphere, with high melting point. Titanium add hydrogen
in a vacuum under high temperature can be hydrogenated, after inhalation of
large amounts of hydrogen become titanium hydride, titanium hydride is easy
embrittlement, relatively easy to make into powder, which is currently a common
method of metal powder supplier producing a large number of titanium powder.
Titanium hydride powder is generally containing 4%
hydrogen, dark gray, under high temperatures will release hydrogen, currently
apply this technology to produce “bubble aluminum”, because titanium
hydride powder contains hydrogen, so to be made of pure titanium powder should
be at high temperature under vacuum, use a plenty of time to evacuate vacuum,
then restore into titanium powder. Titanium powder is stable at room
temperature, at high temperature with strong chemical combination ability, can
be combined with oxygen, carbon, nitrogen, and many other elements. Titanium
powder at high temperatures has suction function, so that in the electronics
industry used titanium powder as a “getter”.
Titanium powder in combustion will emit white
sparks. Titanium powder is flammable in case of encountering fire and intense
friction, has been widely used in fireworks, outdoor fireworks commonly used
100 mesh titanium powders, 200 mesh titanium powder used to make cold light
fireworks indoors. The purity higher, the sparks will be more white.
Titanium powder in the “metallic
additive” has also been applied, as the titanium agent, titanium content
is greater than 88%, 90%, 92%, 95%, 97%, 98% titanium powder can be used as
additives. Particle size is 40 mesh, 60 mesh, 80 mesh, 100 mesh titanium
powders can be used as “titanium agents”.
From discovery titanium element to obtain titanium
has lasted a hundred years. While the use of titanium, really gets to know its
true face, was in 1940s. In 1947, people began to smelt titanium in the
factory. At that time, the annual output was only 2 tons. In 1955, annual
production surged to 20,000 tons. In 1972, the annual output reached 20 million
tons.
The hardness of titanium is almost the same as
steel, while its weight is virtually only half the volume of steel, although
titanium is slightly heavier than aluminum, but its hardness is two times greater
than aluminum. Fine titanium powder is also a good rocket fuel, so that titanium was known as cosmic
metal, space metal. Titanium with good heat resistance, the melting point was
up to 1725. At room
temperature, titanium can be safe to lie in a variety of acid and alkali
solutions. Even the most ferocious acid – aqua vagina cannot corrode it. The
biggest drawback of titanium is difficult to refine, mainly because of the
titanium has strong chemical combination ability at extreme temperatures, can
be combined with oxygen, carbon, nitrogen, hydrogen and many other elements.
Nano titanium powder, ultrafine titanium powder was
prepared through a special process, high purity, small particle size and uniformity,
high surface activity, can be fully used in paints, resins, and nano-titanium
through surface parcel handling, can place a long time but do not oxidized,
through surface treating nano titanium can be better solved dispersion problems
and overcome nanopowder agglomeration.
Nano titanium combined with resin generated various
new paints, with a variety of advantages which similar products cannot be
compared. The first is corrosion-resistant, items coated with it not only has
the ability to resist boiling water, but also cannot be damaged after immersed
in seawater, is the most promising anti-corrosion coating of marine hull.
Secondly, the coating hardness and wear resistance increased significantly, it
also has amazing ability to repair itself, can be utilized as metals,
non-metallic materials common healant. Nano Titanium coating is also shown to
have self-cleaning. In addition, titanium as the only metal without any impact
on human nerve, taste
, its coating can also be widely used in food industry.
Article
Source:http://www.mhcmp.com
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