Products
SiC Refractory Brick

  About SiC Refractory Brick
   
Made of our own SiC raw material, Hongyuan silicon nitride bonded silicon carbide bricks are excellent in performance of corrosion resistance, oxidation resistance, perishing resistance, deformation resistance and thermal shock resistance, and are featured with high temperature strength, good thermal conductivity, and long life-time. They are widely used in fields of electrolytic aluminum, blast furnace, smelting furnace, etc.



  Application

      electrolytic aluminum                 blast furnace                       smelting furnace 


  Technical Data

 
Item Result
(Apparent porosity)% ≤16
(Bulk density)g/cm3 ≥2.65
(Cold compression strength)MPa ≥150
(Modulus rapture at room temperature)Mpa ≥40
(Modulus rapture at elevated temperature)Mpa ≥45
(Coefficient of thermal liner expansion) ×10-6/℃ ≤4.18
(Thermal conductivity )w/(m·k) ≥16
(Refractoriness) (℃) 1800
0.2Mpa(Loading softening point )℃ 1600
(Max working temperature) ℃ 1550
(Composition)(%) SiC ≥72
Si3N4 ≥20
Fe2O3 ≤0.7
SiC+ Si3N4 ≥90
Si ≤0.5


  High Quality of Raw Material

Smelted with pure petroleum coke, Hongyuan make SiC raw material by ourselves. We are the only one in China having complete SiC products chain: 

SiC crystal smelting- SiC grains- SiC ceramic products. 

 

Nitride Bonded Silicon Carbide NBSiC Ceramic Riser Tube


  Advanced Equipments for Firing
The automatic nitriding furnace in the largest volume, controlled by microcomputer, were honored the First Prize of China Machinery Industry Science and Technology Award for the residual-heat utilization system, meanwhile this nitriding furnace gaining state's utility patent.



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