Silicon Carbide(Carborundum)/SiC/Black Silicon Carbide/Green Carbide silica

$Flake Graphite With High Purity For Refractory$

Flake Graphite With High Purity For Refractory

Low price calcined bauxite supplied by CNBM

$Silicon Carbide Black and Green for Refractory$

Silicon Carbide Black and Green for Refractory

Black SiC/Silicon Carbide 10-100mm and Powder

Calcined Bauxite for Aluminate Cement Use

Calcined Bauxite for aluminate cement

high quality Black silicon carbide 0-1/1-3/3-5mm and powder

Oxide silicon carbide sic ceramic pillar/support/ kiln furniture

Metallurgical Grade Bauxite/Aluminium Soil of CNBM in China

REFRACTORY GRADE CALCINED BAUXITE WITH COMPETITIVE PRICE

NATURAL CRYSTAL FLAKE GRAPHITE FC 93 WITH DISCOUNT PRICE

Sell Bauxite From Mines Direct ,Manufacture of CNBM in China

$Sintered Silicon Nitride Bonded SiC Refractory Plate$

Sintered Silicon Nitride Bonded SiC Refractory Plate

$Dead Sintered Magnesite High Grade DBM in Refractory$

Dead Sintered Magnesite High Grade DBM in Refractory

FC Bauxite and Sic Base Water-Free Mudgun for Blast Furnace of CNBM in China

$Calcined Bauxite for Low Cement Ladle Linning as Refractories Materials Originates in China$

Calcined Bauxite for Low Cement Ladle Linning as Refractories Materials Originates in China

AL2O3 85%min China Calcined Bauxite Manufacture

Dead Burned Magnesite/DBM/Dead Burnt Magnesia

70% Alumina 200 Mesh Calcined Bauxite with Low Price

Q & A

What are the differences between alumina-magnesia spinel and alumina-magnesia-chrome bricks?

Alumina-magnesia spinel bricks and alumina-magnesia-chrome bricks differ primarily in their composition and performance characteristics. Alumina-magnesia spinel bricks are composed of a mixture of magnesia and alumina, with spinel (MgAl2O4) as the main phase. These bricks offer excellent thermal shock resistance, high refractoriness, and good corrosion resistance, making them suitable for various applications in the steel, cement, and glass industries. They are particularly known for their ability to withstand rapid temperature changes without cracking. On the other hand, alumina-magnesia-chrome bricks contain additional chrome oxide (Cr2O3) along with magnesia and alumina. The addition of chrome oxide enhances their resistance to corrosion from aggressive materials, such as alkalis and acidic slags. These bricks are commonly used in high-temperature environments, such as in the construction of steel ladles, furnaces, and rotary cement kilns. In summary, alumina-magnesia spinel bricks excel in thermal shock resistance, while alumina-magnesia-chrome bricks exhibit superior corrosion resistance due to the addition of chrome oxide. The choice between the two depends on the specific application and the type of chemical and thermal stresses the bricks are expected to endure.

What are the advantages of using fused zirconia as a raw material in refractory production?

Fused zirconia offers several advantages as a raw material in refractory production. Firstly, it has a high melting point, ensuring excellent thermal stability and resistance to heat. This makes it an ideal choice for applications that involve extreme temperatures. Secondly, fused zirconia has exceptional chemical resistance, allowing it to withstand harsh chemical environments without degradation. Additionally, it possesses low thermal conductivity, which helps to reduce heat transfer and enhance energy efficiency. Lastly, fused zirconia exhibits excellent mechanical strength and wear resistance, making it durable and long-lasting in refractory applications.

What are the raw materials used in the production of refractory fibers?

The raw materials used in the production of refractory fibers typically include alumina, silica, zirconia, and various other minerals and oxides.

How do different types of wollastonite compare in terms of performance in refractory applications?

Different types of wollastonite can differ in terms of performance in refractory applications. Factors such as particle size, purity, and chemical composition can impact their behavior. For example, finer particle sizes tend to improve the flowability and packing ability of refractory mixes, leading to better densification and improved mechanical properties. High-purity wollastonite can enhance the thermal stability and resistance to chemical corrosion. Additionally, variations in the calcium-to-silicon ratio and impurity content can influence the melting point and thermal expansion of the refractory material. Therefore, it is crucial to choose the appropriate type of wollastonite based on specific refractory application requirements.

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