Rongsheng Refractories Group
Scheme conformations refractory
Unshaped refractory materials:
- Monolithic refractories based on silicon carbide
Monolithic silicon carbide refractories include Silicon Carbide Castable, Silicon carbide Ramming mix, Silicon Carbide Refractory Mortar, Fireproof Mortar for Composite Brick.
- Alumina-silica monolithic refractories
Alumina-silica monolithic refractories include dry impermeable castable, high strength castable, light weight moldable, Insulating fireproof mortar.
- Low cement cast
Using high quality bauxite and flint clay as the main raw materials and calcium aluminate cement as the binder, This casting material has the characteristics of high strength and stable performance.
- Non-stick aluminum cast material
This cast material is made of high quality aluminum as the main raw material, and pure calcium aluminosilicate cement is used as a binder. By adding an anti-bleed agent and optimizing the structure of the matrix composition, it has good resistance to molten aluminum penetration.
- High Aluminum Ductile 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 service life, good thermal stability and excellent construction performance.
- Lightweight insulating molded material
Castable Made from lightweight mullite aggregate, floating balls are used as the main raw material, and aluminate cement is used as a binder. It has the characteristics of good thermal conductivity, high strength and so on. Widely used for oven insulation.
Fireproof Bricks Aluminum Electrolysis Cell :
Bricks for aluminum electrolysis cell (bricks for side walls, corner bricks and composite bricks)
Made not only from high quality silicon carbide and industrial silicon powder as raw materials, but also by vibration pressure molding and high pressure step oxidation process, This product is characterized by good corrosion resistance to cryolite, high resistance to oxidation, high temperature resistance, high thermal conductivity and long service life, Therefore, it is an ideal material for the side wall of large-scale pre-baked electrolyser with a capacity of 180 kVA. Compared with carbon blocks, this product improves current efficiency, reduces DC power consumption and has a significant impact on energy saving and consumption reduction.
Silicon Carbide Bricks, bonded with silicon nitride:
This brick has the characteristics of high temperature resistance, resistance to corrosion and erosion of molten aluminum (aluminum alloy), no contamination of molten aluminum (aluminum alloy) and good heat resistance. It is mainly used in casting process, aluminum smelting and refining (aluminum alloys).
Refractories for copper, zinc, lead and nickel industry
Direct bond magnesiochrome bricks are made from sintered or fused magnesium or chromium concentrate of high or sub-high purity as raw material. The product contains few impurities. After firing at high or ultra-high temperature, the glass phase is concentrated in a triangular region of the crystalline phase, and the crystalline phase and the crystalline phase are directly combined. It has the characteristics of low porosity, high crush strength, high wear resistance, corrosion resistance, thermal shock resistance and good peel resistance.
| Brand product | Direct bonded magnesium 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 Fire resistance under load ,℃ ≥ | 1700 | 1650 | 1700 | 1650 | 1700 | 1650 | 1700 | 1650 | 1700 | 1700 | 1700 |
| (1400℃) Thermal expansion coefficient, % | 1.5 | — | – | — | 1.6 | — | — | – | — | — | 1.8 |
| Branded product | 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 Fire resistance under load, ℃ ≥ | 1530 | 1550 | 1550 | 1550 |
Semi-rebonded magnesia-chrome brick
Semi-rebonded magnesia-chrome brick is made from fused magnesia-chrome particles, fused or sintered magnesia of high purity and chrome concentrate as raw materials, fired at ultra-high temperature. Not only thermal shock resistance is good for direct bond magnesia-chrome bricks, but corrosion resistance is also good for fused chromium-magnesium bricks with re-bonding.
| Branded product | 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 Fire resistance under load, ℃ ≥ | 1700 | 1650 | 1700 | 1650 | 1700 | 1650 | 1700 | 1650 | 1700 | 1650 | 1700 | 1700 | 1700 |
| (1400℃) Thermal expansion coefficient, % | 1.4 | — | — | — | 1.5 | — | — | — | 1.6 | — | — | 1.7 | — |
Fused Rebonded Magnesia Chrome Brick, magnesium aluminum chrome composite spinel brick
Fused re-bonded magnesium chrome bricks – these are re-sintered products, made from fused magnesium chromium particles.
Spinel brick made of magnesium-aluminium-chromium composite – This is a new type of high quality composite material, designed by Rongsheng company according to the characteristics of zinc evaporation furnace. Not only does it have excellent abrasion and erosion resistance, but also good resistance to peeling. After using Zhuzhou Smelting Co., Ltd., Yunnan Copper Zinc Co., Ltd. and other large zinc smelting enterprises, this type of brick has obvious advantages over chrome slag bricks, magnesia-chrome bricks with direct connection, magnesia bricks and heat-resistant bricks with high alumina content. It is an ideal material for zinc evaporation furnaces.
| Branded product | Fused Reconstituted 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 Fire resistance under load , ℃ ≥ | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | 1650 |
| Thermal shock resistance ≥ | — | — | — | — | — | — | — | — | 100 | 80 |
| Thermal expansion coefficient, % | — | — | 1.5 | — | — | — | — | 1.7 | — | — |
High alumina bricks 、High alumina bricks and fireclay clay bricks with phosphate binder
| Brand Product | High alumina bricks | High alumina bricks with phosphate binder | Fire Clay Bricks | ||||||||
| RSLZ-75 | RSLZ-65 | RSLZ-55 | RSLZ-48 | PA | RSGH-80 | RSN -1 | RSN -2a | RSN -2b | RSN-3a | RSN -3b | |
| Al2O3 , % ≥ | 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 |
| Fire resistance under load ≥ | 1500 | 1450 | 1420 | 1400 | 1250 | 1460 | 1400 | 1350 | — | 1320 | — |
| 1400℃×2h Ramp rate when reheating, % | 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 | — |
| Fire resistance,℃ ≥ | 1790 | 1790 | 1770 | 1770 | 1780 | 1790 | 1760 | 1740 | 1740 | 1720 | 1720 |