PRE-CAST PRE-FIRED (PCPF) BLOCKS
Hand Moulding / Precast Shapes
MRPL manufactures varieties of Refractories shapes which are difficult and/or impossible to make through Pressing route. Products of these kinds of ranges are of complex and complicated shapes embedded with Metal Anchors or Frames. MRPL has its own Central Workshop for Mould making (both Metallic and Wooden Patterns) for fabrication of Precast Items with assured product qualities in terms of shapes, sizes, dimensional accuracy and surface finish. PCPF shapes of very big sizes like Ladle Cover for VAD; Top Blocks for ABF; Ceramic Anchor embedded Precast Element for Roof of Reheating Furnace etc. are casted in the designated area with all necessary arrangement for proper handling of heavy items mechanically. Quality and temperature of Water, required for casting, are monitored and maintained based on the ambient conditions to minimize the seasonal effects. These materials are fired in specially designed Kiln as per the process requirement and quality of the products. The most important requirement of Precast shapes is its quality; which should be almost same with rest of the refractory structures.
| Product Name | Chemical Analysis (wt%) | Apparent Porosity (%) | Bulk Density (g/cc) Min. |
CCS (kg/cm2) | PLC (%) | PCE (0C/OC) Min. | Service Temperature (0C) Max. | Application Area | |
| Al2O3 | Fe2O3 | ||||||||
| Mahakoshal LC 45 | 44-48 | 1.2-1.4 | 12-16 | 2.30 | 800-900 | ±1.8 at 15000C/3h | 1665/30 | 1500 | Aluminium Industry for Burner Block Sealing; Top Block in ABF and others. |
| Mahakoshal LC 60 | 58-62 | 1.4-1.6 | 12-16 | 2.55 | 900-1100 | ±1.5 at 15000C/3h | 1763/34 | 1550 | Burner Blocks in Fertilizer Plants |
| Mahakoshal LC 70 | 68-72 | 1.4-1.6 | 11-15 | 2.65 | 1000-1300 | ±1.5 at 15000C/3h | 1785/35 | 1600 | Burner Blocks in Fertilizer Plants |
| Mahakoshal LC 70M | 68-72 | 0.5-0.8 | 12-16 | 2.60 | 1000-1200 | ±0.8 at 15500C/3h | 1820/37 | 1700 | Burner Blocks in Fertilizer Plants |
| Mahakoshal LC 80 | 78-82 | 1.6-2.0 | 12-16 | 2.80 | 1100-1400 | ±1.5 at 15000C/3h | 1804/36 | 1650 | Burner Blocks in Fertilizer Plants |
| Mahakoshal LC 90 | 86-90 | 1.0-1.2 | 11-15 | 3.00 | 1200-1500 | ±1.0 at 15000C/3h | 1820/37 | 1700 | Rolling Mill Hearth |
| Mahakoshal ULC 65 | 63-66 | 1.2-1.4 | 11-15 | 2.65 | 1000-1200 | ±1.2 at 15000C/3h | 1785/35 | 1600 | Burner/Muffle Blocks in Fertilizer Plants |
| Mahakoshal ULC 95 | 93-96 | 0.2-0.4 | 11-15 | 3.10 | 1200-1500 | ±1.0 at 15000C/3h | 1835/38 | 1800 | Rolling Mill Hearth |
Notes
- Size Tolerance : ±5% or ± 2.0mm whichever is greater.
- Mahakoshal does not warrant the accuracy, fitness for purpose or updates of any information disclosed herein. Specification of the products may change based on the geographical area to be supplied.
- Data shown are based on average results of production samples and are subject to normal variation during individual tests.
- and Min. values are given separately for testing purposes.
- The information contained herein are exclusive property of Mahakoshal.