Refractories Conformation Scheme

Zhengzhou Rongsheng

Unshaped Refractory Materials :

  • Silicon Carbide Based Monolithic Refractories

    Silicon Carbide Based Monolithic Refractories include Silicon Carbide Castable, Silicon Carbide Ramming Mix,Silicon Carbide Refractory Mortar,Refractory Mortar For Composite Bricks.
  • Alumina-silica Monolithic refractories

    Alumina-silica monolithic refractories include dry impermeable castable, high-strength castable,lightweight castable, Insulation refractory mortar.
  • Low Cement Castable

    Using high-quality bauxite and flint clay as the main raw material and calcium aluminate cement as the binder, this castable has the characteristics of high strength and stable performance.
  • Non-stick Alumina Castable

    This castable is made of super-grade alumina as the main raw material, and pure calcium aluminosilicate cement is used as the binder. By adding anti-wetting agent and optimizing the matrix composition structure, it has good resistance to aluminum liquid infiltration.
  • High Alumina Plastic Refractory

    This product is made of high-quality bauxite as the main raw material and phosphate as the binder. It has the characteristics of long shelf life, good thermal shock resistance, and good construction performance.
  • Light Weight Insulating Castable

    The castable is made of mullite lightweight aggregate, floating beads as main raw materials, and aluminate cement is used as the binder. It has the characteristics of good thermal conductivity, high strength and so on. It is widely used for heat insulation of kilns.

Refractory Bricks of Aluminum Electrolysis Cell :

Bricks for Aluminum Electrolysis Cell(side wall bricks, corner bricks and composite bricks)
Not only made of high-quality silicon carbide and industrial silicon powder as raw materials, but also made by vibrating pressure forming and stepped high pressure oxidation process, this product is characterized with good cryolite corrosion resistance, strong oxidation resistance, high temperature strength, strong thermal conductivity and long service life , so it is an ideal material for the side wall of a 180KVA large-scale pre-baked electrolytic cell. Compared with carbon blocks, this product improves current efficiency, reduces DC power consumption, and has a significant effect of energy saving and consumption reduction

Silicon Nitride Bonded Silicon Carbide Port Bricks :

This brick has the characteristics of high temperature resistance, corrosion and erosion resistance of molten aluminum (aluminum alloy), no pollution of molten aluminum (aluminum alloy), and good thermal shock resistance. It is mainly used in the casting process of aluminum (aluminum alloy) melting and refining.

 

Refractories for Copper, Zinc, Lead and Nickel industries

Direct-bonded magnesia chrome bricks are made of high-purity or sub-high-purity sintered or fused magnesia and chromium concentrate as raw materials. The product has few impurities. After being fired at high or ultra-high temperature, the glass phase is concentrated in the triangular area of the crystal phase, and the crystal phase and the crystal phase are directly combined. It has the characteristics of low porosity, high crushing strength, strong wear resistance, corrosion resistance, thermal shock resistance and good peeling resistance.

Brand Item Direct-bonded Magnesia-Chrome Brick
RSM Ge-8A RSM Ge-8B RSM Ge-12A RSM Ge-12B RSM Ge-16A RSM Ge-16B RSM Ge-18A RSM Ge-18B RSM Ge-20 RSM Ge-22 RSM Ge-26
MgO , %  ≥ 82 76 75 70 70 65 65 62 65 60 55
Cr2O3 , %  ≥ 8 8 12 12 16 16 18 18 20 22 26
SiO2  ,%   ≤ 1.5 2.5 1.5 2.5 1.5 2.5 1.5 2.5 2.0 2.0 2.0
Apparent Porosity,%       ≤ 17 18 17 18 17 18 17 18 19 19 20
CCS , MPa    ≥ 45 45 45 45 45 40 45 40 40 40 40
0.2MPa  Refractoriness Under Load ,℃    ≥ 1700 1650 1700 1650 1700 1650 1700 1650 1700 1700 1700
(1400℃) Thermal Expansion Rate, % 1.5 -- - -- 1.6 -- -- - -- -- 1.8
Brand Item Magnesia Chrome Brick
RSMGe-8 RSMGe-12 RSMGe-16 RSMGe-20
MgO , %  ≥ 60 55 45 40
Cr2O3 , %  ≥ 8 12 16 20
Apparent Porosity ,%  ≤ 21 21 22 22
CCS , MPa    ≥ 30 30 25 25
0.2MPa Refractoriness Under Load, ℃ ≥ 1530 1550 1550 1550

 

Semi-rebonded Magnesia Chrome Brick

Semi-rebonded magnesia chrome bricks are made of fused magnesia chromium particles, high-purity fused or sintered magnesia and chromium concentrate as raw materials, fired at ultra-high temperature. Not only thermal shock resistance is good as direct-bonded magnesia chrome bricks, but also corrosion resistance is good as fused rebonded magnesia chrome bricks.

Brand Item Semi-rebonded Magnesia Chrome Brick
RS RMGe -12A RS RMGe -12B RS RMGe -14A RS RMGe -14B RS RMGe -16A RS RMGe -16B RS RMGe -18A RS RMGe -18B RS RMGe -20A RS RMGe -20B RS RM Ge-22 RS RM Ge-26 RS RM Ge-30
MgO , %  ≥ 78 75 75 72 72 70 70 68 68 65 65 60 55
Cr2O3 , %  ≥ 12 12 14 14 16 16 18 18 20 20 22 26 30
SiO2 , %   ≤ 1.5 2.0 1.5 2.0 1.5 2.0 1.5 2.0 1.5 2.0 2.0 2.0 2.0
Apparent Porosity, % ≤ 15 16 15 16 15 16 15 16 15 16 16 16 16
CCS, MPa   ≥ 45 40 45 40 45 40 45 40 45 40 45 45 45
0.2MPa Refractoriness Under Load , ℃    ≥ 1700 1650 1700 1650 1700 1650 1700 1650 1700 1650 1700 1700 1700
(1400℃) Thermal Expansion Rate, % 1.4 -- --- --- 1.5 -- -- -- 1.6 -- -- 1.7 --

 

Fused Rebonded Magnesia Chrome Brick、Magnesium-aluminum-chromium Composite Spinel Brick

Fused rebonded magnesia chrome bricks are re-sintered products made of fused magnesia chrome particles.

Magnesium-aluminum-chromium composite spinel brick is a new type of high-grade composite material, which developed by Rongsheng according to the characteristics of zinc volatilization kiln. It not only has excellent scouring and erosion resistance, but also has good peeling resistance. After being used by Zhuzhou Smelting Co., Ltd., Yunnan Copper Zinc Co., Ltd. and other large zinc smelting enterprises, this kind of brick has obvious advantages over chrome slag bricks, direct-bonded magnesia chrome bricks, magnesia bricks and thermal shock resistant high alumina bricks. It is the ideal material for zinc volatilization kilns.

Brand Item Fused Rebonded Magnesia Chrome Brick Magnesium-aluminum-chromium Composite Spinel Brick
RSRM Ge-12 RSRM Ge-14 RSRM Ge-16 RSRM Ge-18 RSRM Ge-20 RSRM Ge-22 RSRM Ge-26 RSRM Ge-30 RSMAC -A RSMAC -B
MgO , % ≥ 78 75 72 70 68 65 60 55 80 75
Cr2O3 ,%  ≥ 12 14 16 18 20 22 26 30 3-5 3-5
SiO2 , %  ≤ 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 Al2O3 6
Apparent Porosity , % ≤ 15 15 15 15 15 15 15 15 17 18
CCS, MPa ≥ 45 45 45 45 45 45 45 45 50 50
0.2MPa  Refractoriness Under Load , ℃  ≥ 1700 1700 1700 1700 1700 1700 1700 1700 1700 1650
 Thermal Shock Resistance ≥ -- -- -- -- -- -- -- -- 100 80
Thermal Expansion Rate, % --- -- 1.5 -- -- -- -- 1.7 -- --

 

High Alumina Bricks 、Phosphate Bonding High Alumina Bricks and Fire Clay Bricks

Brand  Item High Alumina Bricks Phosphate Bonding High Alumina Bricks Fire Clay Bricks
RSLZ-75 RSLZ-65 RSLZ-55 RSLZ-48 PA RSGH-80 RSN -1 RSN -2a RSN -2b RSN -3a RSN -3b
Al2O, %    ≥ 75 65 55 48 77 80 -- -- -- -- --
Fe2O3 , % ≤         3.2 2.0 -- -- -- -- --
Apparent Porosity , %   ≤ 23 23 22 22 -- -- 22 24 26 24 26
Bulk Density ,g/cm3 -- -- -- -- 2.7 2.9 -- -- -- -- --
 CCS, MPa ≥ -- -- -- -- 65 60 60 25 20 20 15
Refractoriness Under Load ≥ 1500 1450 1420 1400 1250 1460 1400 1350 -- 1320 --
1400℃×2h  Reheating Linear Change Rate, %  1500℃×2h +0.1~-0.4 1500℃×2h +0.1~-0.4 1450℃×2h +0.1~-0.4 -- -- -- +0.1 ~-0.4 +0.1 ~-0.5 +0.2 ~-0.5 1350℃×2h +0.2~-0.5 --
Refractoriness,℃  ≥ 1790 1790 1770 1770 1780 1790 1760 1740 1740 1720 1720
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