We manufacture Precast & Prefired (PCPF) blocks and shapes from a wide range of LC Castable from 40% Alumina to 95% Alumina.
These PCPF blocks and critical shapes are supplied to a variety of indusries.
- PCPF blocks 600 X 300 X 150 mm – For the Re-heating furnace hearth blocks.
- Long tundish for the casting of super alloy ingots.
- Burner block for the various types of Oil & Gas furnaces.
- Support blocks for the walking beam furnace for the seamless pipe reheating furnace etc.
- Critical shapes which are custom made as per the drawings.
Ladle And Collector Nozzles , Slide Gate Plate
Application: A combination of two slide gate plates, one ladle nozzle and one collector nozzle form a set. This entire set is fixed on to the ladle. The ladle nozzle also known as inner nozzle or fixed nozzle is placed in a well block which is embedded in the silica ramming mass lining of the ladle. The slide plates are fitted outside the ladle in a mechanism which is hydraulically operated. The collector nozzle also known as outer nozzle is fitted to the bottom slide gate plate. This system is used for operating and controlling the flow of the molten steel from the ladle to the tundish.
Life:For a 1 QC system on an average 50 to 60 MT of molten metal can be casted and for 2 QC system about 70 to 80 MT. Depending upon the capacity of the ladle the life can be calculated in terms of heats/campaigns. However, a lot depends upon the chemistry of the steel, and avoidance of slag flowing through the refractory system and much more on the adequate and proper cleaning of the bore of the slide plates and ladle nozzle.
Tundish Metering Nozzles
Application: There are various types of tundish nozzles like for upto 2 hours, 5 to 6 hours and long sequence casting of 12 to 18 hours. Based on the operating time, the type of the nozzle can be selected. There are different types nozzles like co-moulded into a well block, zirconia insert co-moulded in an alumina carbon body.
The tundish nozzles are also known as metering nozzles as it has a very specific diameter. These nozzles are fixed in the tundish through which the molten metal flows into the continuous casting machine and molten metal gets casted in a rectangular section known as billets. The bore diameter of the nozzle is selected based on the section of the billet to be casted and also the casting speed.
Life: Life of the tundish nozzle is one continuous campaign of cast. Based on the casting time, the nozzle can be selected.
MORTAR 90k
Application: This is a very special mortar with very high melting point such that it sustains the temperature of molten steel. The mortar has a high sintering temperature which property gets developed on account of chrome oxide added into the composition.
Life: Every time the refractories are changed, the new mortar needs to be applied. Therefore there is no specific life for this that can be quantified
Castables
Castable is also known as unshaped refractory. In the steel industry it is used for backup lining of the vessel. And also for maintenance of the ladle, tundish, furnace launder etc. by way of patching/lining.
Life: For back up lining application the life is substantially high. However for repairs application life is not predictable as proper application methods cannot be followed