Xi'an Valor Wear-resistant Engineering Technology Co., Ltd. Company Logo Xi'an Valor Wear-resistant Engineering Technology Co., Ltd.
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Refractory Brick and Other Refractories Material

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Xi'an Valor Wear-resistant Engineering Technology Co., Ltd.
[China]

Address
No.1 Hi-tech road,Hi-tech zone Xian Shanxii
Phone
0086-139-92898353
Contact name
Jerry Miller

Quick Information

  • Brand Name: valor
  • Place of Origin: China

Description

Our refractory materials are chemically and physically stable at high temperatures. Depending on the operating environment, they can resistant to thermal shock, be chemically inert, and/or have specific ranges of thermal conductivity and of the coefficient of thermal expansion.

 

The oxides of aluminium (alumina), silicon (silica) and magnesium (magnesia) are the most important materials used in the manufacturing of refractories. Another oxide usually found in refractories is the oxide of calcium (lime). Fire clays are also widely used in the manufacture of refractories.

 

Refractories must be chosen according to the conditions they will face. Some applications require special refractory materials. Zirconia is used when the material must withstand extremely high temperatures. Silicon carbide and carbon (graphite) are two other refractory materials used in some very severe temperature conditions, but they cannot be used in contact with oxygen, as they will oxidize and burn.

 

Binary compounds such as tungsten carbide or boron nitride can be very refractory. Hafnium carbide is the most refractory binary compound known, with a melting point of 3890 C. The ternary compound tantalum hafnium carbide has one of the highest melting points of all known compounds (4215 C).


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