Tungsten Heat Shield for Sapphire Growth Furnace

Tungsten heat shield is also known as tungsten heat shield sheet, and is to keep the temperature inside tungsten crucible and prevent outside people from hurt. Tungsten heat shield is made of tungsten sheet wigh purity over 99.95%. Tungsten sheet is very large and its surface is bright or alkaline cleaned.

The production process of tungsten heat shield in the sapphire growth furnaces is using tungsten powder by hydrostatic compaction and sintered at high temperature to prepare ungrounded tungsten plate. Besides using in sapphire growth furnace, tungsten sheet can also used in vacuum parts of the electric light, and vacuum coating containers.

Tungsten heat shield used in sapphire growth furnaces can be made by hot rolled and cold rolled. Its material, tungsten sheet, can be used in other fields, such as electronics, and vacuum. Tungsten heat shield provides good heat shield use for the application of sapphire crystal growth furnace.

If there is any other question refer to tungsten and molybdenum for sapphire growth furnace, please feel free to contact us through the following methods.

Email: sales@chinatungsten.com
Tel.: +86 592 512 9696/ +86 5925129595
Fax: +86 5925129797       

Tungsten Bracket for Sapphire Growth Furnace

Tungsten bracket is also called tungsten support for the set products of tungsten crucible. The shape of tungsten bracket is always round with hole in the middle. The purity of tungsten bracket is over 99.95%, and its density is about 18.2g/cm3, which can be the same as tungsten crucible and tungsten crucible cover.

Tungsten crucible connected with tungsten bracket and tungsten crucible cover is a set of products in the middle of sapphire growth furnace. All these products are sintered and smoothed. Tungsten crucible cover and tungsten bracket can also be polished, which is showing the bright and smooth surface.
The main reason for tungsten used as the material for tungsten bracket is high temperature resistance.

If there is any other question refer to tungsten and molybdenum for sapphire growth furnace, please feel free to contact us through the following methods.

Email: sales@chinatungsten.com
Tel.: +86 592 512 9696/ +86 5925129595
Fax: +86 5925129797       

Tungsten Crucible Cover for Sapphire Growth Furnace

As for the properties of high density, high temperature resistance, high melting point, tungsten crucible is a main part of sapphire growth furnace. Tungsten crucible cover is one part of tungsten crucible. The tungsten crucible for sapphire growth furnace is used the material of tungsten with the purity over 99.95%. Mostly, tungsten crucible cover is sintered, and its density is about 18.3g/cm3. Besides tungsten crucible cover, the set products include tungsten crucible base, or tungsten tray.

As the heat shield parts of sapphire growth furnace, the most important efforts made by tungsten crucible cover and tungsten heat shield are sealing the products inside the furnace and keeping the temperature inside. Tungsten crucible cover is hgh purified, high specifications accuracy, smooth surface condition and reasonale design, which are important for the quality of sapphire crystal.
Tungsten crucible cover and tungsten crucible closely integrated to provide a sealed space for the production of sapphire crystal. The seal of space control is a key factor for the quality of the sapphire crystal sapphire growth.

Chinatungsten Online has proficient experience, and the production of tungsten crucible and tungsten crucible cover and support frame are accepted by the customers, and the most significantly, the quality of tungsten crucible cover can be assured.

If there is any requirement related to tungsten crucible cover for sapphire growth furnace, please feel free to contact us through the following methods:
Email：sales@chinatungsten.com
Tel.：+86 592 512 9696
Fax：+86 592 512 9797

Tungsten Crucible for Sapphire Growth Furnace

Tungsten crucible and related tungsten thermal system for sapphire growth furnace owns the properties of high density, high purity and high processing accuracy. Tungsten crucible for sapphire growth furnace is made of the material of pure tungsten, whose purity is over 99.95%, and the density is about 18.2g/cm3.
The manufacturing techniques of tungsten crucible for sapphire growth furnace are sintering, metal forming, spinning type, the use of molybdenum rod turning molding, or welding of a variety of pure tungsten plates, tungsten plates and pure tungsten rod. The tungsten crucible can be used under the high temperature of 2600 degree.



Tungsten crucible is also used in sapphire growth furnace is mainly because of the properties of tungsten, which are high boiling point, high melting point, thigh temperature resistance, high corrosion resistance,low thermal expansion coeffient, and high thermal conductivity. Besides tungsten crucible for sapphire growth furnace, tungsten crucible is also used in metallurgy of rare earth, ion plating and quartz glass.

It is because of the properties of tungsten crucible that tungsten crucible is chose as one important part in the process of growing sapphire crystal. Under high temperature, tungsten crucible will not react with Al2O3, so that the purity of sapphire crystal can be assured.


If there is any other question refer to tungsten crucible for sapphire growth furnace, please feel free to contact us through the following methods:
Email：sales@chinatungsten.com
Tel.：+86 592 512 9696
Fax：+86 592 512 9797