Fused
quartz tubes and tubing are made by fusing or melting, naturally occurring quartz
crystals. The crystals used are of a very high purity. This process takes place at
3632°F or 2000°C. This requires using high temperature furnace. Fused quartz tube
and tubing is normally a transparent. The optical and thermal properties of fused
quartz is far superior to those of other types of glass. This is due to its very high
purity. Fused quartz is used in ultraviolet transmission, clear lens, and other optics
for the ultraviolet spectrum. Quartz has low coefficient of thermal expansion. This
makes it a useful material for precision mirror substrates. Thermocouple protection
tubes are also made from fused quartz. Quartz protection tubes are excellent for
molten precious metal applications.

<a href="http://www.fudongquartz.com/fused-quartz-tuebs/clear-quartz-tube/"
target="_self">Clear quartz tube is a special industrial technology glass made of
silica, which is a very good basic material. Quartz glass has a series of excellent
physical and chemical properties, widely use in optical, chemical, semiconductor
industrial, liquid crystal, lighting, ect. Heat resistance, light transmission,
electrical insulation and chemical stability are very good. Clear quartz tube features
the property of high purity and high temperature resistance.

The clear tube that protects a UV lamp is called a sleeve and is made of quartz.
The UV <a href="http://www.fudongquartz.com/fused-quartz-tuebs/clear-quartz-sleeve/"
target="_self">clear quartz sleeve is an essential part of any UV water filtration
system. This barrier can gradually become coated with mineral deposits and other
contaminants, but its' job is to be a barrier between the UV lamp and the water
flowing past. Regularly cleaning the UV quartz sleeve of your UV water purifier is
important because contaminant buildup on the sleeve can hinder UV transmission and
reduce overall system effectiveness. Thorough cleaning and maintenance of the quartz
sleeve is recommended every 12 months (best to at the same time you're replacing
the UV lamp), and the sleeve should be replaced every 24-36 months. Depending on the
quality of your water, you may need to pull out the quartz sleeve and clean it every
few months.

<a href="http://www.fudongquartz.com/fused-quartz-tuebs/uv-block-quartz-tube/"
target="_self">UV block quartz tube is clear fused quartz glass doped with cerium
to block ultraviolet. This glass block all vacuum ultraviolet, nearly all UV-C, UV-B
and emit minimum UV-A. It is an ideal material for lamps requiring maximum visible
light and to avoid UV exposure to people and materials. UV tubing becomes more and
more popular in the market for the unique characteristic. Nowdays, more and more cars
are using plastic front windows. The plastic front windows may be discolored under the
exposure of deep ultraviolet. The automobile lamps made with UV block quartz glass
tube can stop deep UV exposure to plastic windows to keep the windows out of becoming
"yellow" discoloration and emit super "white" visible light at the
same time. It is ideal for automobile lamps.

<a href="http://www.fudongquartz.com/fused-quartz-tuebs/ozone-free-quartz-tube/"
target="_self">Ozone free quartz tube is used for making "Ozone free" UV
sterilizing lamp. It is transparent and cut surface is slight purple. Doped with Ti,
it can prevent radiation of high-density UV rays but generate no ozone. Spectrum
transmission at 185 nm is 0 and no ozone generated. UV transmission at 254 nm is more
than 90%. The UV sterilizing lamps made by electric melting quartz tube have much
longer life than fused quartz tube.

Fused
quartz rod is available from our stock. All rods supplied in 4 ft. lengths. Longer
lengths available upon request and subject to minimum 4 ft. quantities. Larger
diameters available for quotation. The single-component glass consists solely of
silica (SiO2). Through its unique combination of thermal, mechanical and optical
properties, fused quartz is one of the most important materials for industry and
research. Through its unique combination of thermal, mechanical and optical
properties, fused quartz is one of the most important materials for industry and
research. For the semiconductor an solar industries, fused quartz is used in high
temperature processes because of its high softening point, low thermal expansion and
excellent thermal shock resistance.

<a href="http://www.fudongquartz.com/transparent-quartz-glass-plate/"
target="_self">Transparent quartz glass plate is offered in a
wide variety of grades cut from various solid materials. It is used for instance to
produce etch
tanks or as windows and cover plates for various
applications. Grades are primarily differentiated by
the production route and the chemical impurity characteristics. Therefore, transparent
quartz glass plates are
divided into two larger groups: flame fused and electrically
fused. In each group a variety of grades is available, each
with individual advantages for specific applications.

<a href="http://www.fudongquartz.com/transparent-quartz-glass-plate/fused-quartz-
glass-plate/" target="_self">Fused quartz glass plate is widely used for industry
and science for its optical and mechanical properties. These properties make it
resistant to chemicals, withstand high temperatures and thermal shock. It has a low
thermal expansion and high transmission from UV 260nm to over 2 microns.

Vitreous silica is the generic term used to describe all types of silica glass
with producers referring to the material as either fused quartz or as fused silica.
Originally, these terms were used to distinguish between transparent and opaque grades
of the material. Fused quartz products were those produced from quartz crystal to make
transparent ware, and fused silica described products manufactured from sand into
opaque ware. Today, however, advances in raw material beneficiation permit transparent
fusions from sand as well as from crystal. Consequently if naturally occurring
crystalline silica (sand or rock) is melted, the material is simply called <a
href="http://www.fudongquartz.com/fabricated-quartz/" target="_self">fabricated
quartz. When silicon dioxide is synthetically derived, however, the material is
referred to as synthetic fused silica.

<a href="http://www.fudongquartz.com/fabricated-quartz/quartz-for-photovoltaic-
and-semiconductor/" target="_self">Quartz for photovoltaic and semiconductor is
used in many facets of photovoltaic (PV) cell manufacturing, in light sources,
reaction chambers, and tools used in the production of solar cells, thin films, and
silicon wafers. The material's stability, chemical purity, transmissivity to
light, and heat resistance has made quartz vital to the production of semiconductors.