Flow Control Refractories

SLIDE GATE PLATE


  • Essential refractory components used in steelmaking ladles to control the flow of molten metal.
  • Fitted outside the ladle in a mechanism that is hydraulically operated.

CHEMICAL PROPERTIES Al2O3 %
84-86		 Carbon%
5-6		 SiO2 %
5-6
PHYSICAL PROPERTIES Bulk Density (gm/cc)
3.05-3.10		 AP%
5-7		 C.C.S. (MPa)
140-150

TYPES


  • 1QC Slide Gate Plate
  • 2QC Slide Gate Plate
  • HO Slide Gate Plate
  • Customised Slide Gate Plate
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COLLECTOR NOZZLE


  • For efficiently directing and controlling the flow of molten metal in steel manufacturing processes.
  • It is also known as the outer nozzle and is fitted to the bottom slide gate plate.

CHEMICAL PROPERTIES Al2O3 %
80-82		 Carbon%
5-6		 SiO2 %
5-6
PHYSICAL PROPERTIES Bulk Density (gm/cc)
2.7-2.8		 AP%
5-7		 C.C.S. (MPa)
100-110

TYPES


  • 1QC Collector Nozzle
  • 2QC Collector Nozzle
  • HO Collector Nozzle
  • Extended Collector Nozzle
  • Customised Collector Nozzle
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LADLE NOZZLE


  • Known as the inner nozzle or fixed nozzle and is placed in a well block which is embedded in the silica ramming mass lining of the ladle.

CHEMICAL PROPERTIES Al2O3 %
80-82		 Carbon%
5-6		 SiO2 %
5-6
PHYSICAL PROPERTIES Bulk Density (gm/cc)
2.7-2.8		 AP%
6-8		 C.C.S. (MPa)
100-110

TYPES


  • 1QC Ladle Nozzle
  • 2QC Ladle Nozzle
  • HO Ladle Nozzle
  • Customised Ladle Nozzle
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TUNDISH NOZZLE


  • Fixed in the tundish through which the molten metal flows into the continuous casting machine and gets cast in a rectangular section known as billets.
  • The bore diameter of the nozzle is selected based on the section of the billet to be cast and the casting speed.

CHEMICAL PROPERTIES Al2O3 %
80-82		 Carbon%
5-6		 SiO2 %
5-6
PHYSICAL PROPERTIES Bulk Density (gm/cc)
2.7-2.8		 AP%
6-8		 C.C.S. (MPa)
100-110

TYPES


  • Tundish Nozzle (4,6,8 mm sleeve)
  • Composite Tundish Nozzle
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ZIRCONIA INSERTS


  • They are used in continuous casting to produce semi-finished steel products like billets, blooms, and slabs.

TYPES


  • CNC Nozzles
  • FNC Nozzles
  • CNM Nozzles
  • CK4 Nozzles
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PURGING REFRACTORIES


POROUS PLUG


  • Sintered high alumina ceramics that have directional slots to allow gas flow. Inert gas injection through porous plugs is used in ladle metallurgy.

CHEMICAL PROPERTIES Al2O3 %
80-82		 Fe2O3 % Max
5-6		 -
PHYSICAL PROPERTIES Bulk Density (gm/cc) Min
3		 AP%
6		 C.C.S. (MPa) Min
200

TYPES


  • GP-II Porous Plug
  • GP-III Porous Plug
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POROUS PLUG WELL BLOCK


  • Surrounds the porous plug, providing structural support and sealing to maintain the integrity of the vessel while allowing the controlled injection of gases into the molten metal, crucial for refining and alloying processes in steelmaking.

TYPES


  • GP-II Porous Plug Well Block
  • GP-III Porous Plug Well Block
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LADLE WELL BLOCK


  • Used to hold the ladle nozzle

CHEMICAL PROPERTIES Al2O3 %
80-85		 Carbon%
5-6		 Fe2O3 % Max
1.5-2.5
PHYSICAL PROPERTIES Bulk Density (gm/cc) Min
2.75-2.85		 C.C.S. (MPa) Min
100-110		 -


TYPES


  • Alumina Carbon Ladle Well Block
  • Pre Cast Pre Fired Well Block
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TUNDISH NOZZLE WELL BLOCK


  • It is used to hold Tundish Nozzle.

TYPES


  • Tundish Well Block for Ramming Mass Lining
  • Tundish Well Block for Tundish Board Lining
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