PRATIGYA ENTERPRISES PVT. LTD

hisar, Haryana

We provide a range of insulating castables with speciality materials and low densities. These insulating castable refractories are used as either a back-up lining or for hot face work. They are of low to medium strength, making them resistant to abrasion or particle attack.

We offer a wide range of castables with lower cement content. Varying in Alumina content, this range of products have excellent physical properties. They have low porosity, high strength and good abrasion resistance

• Boilers, Reheating Furnace, Heat Treatment Furnace Power Plant
• Boilers, Reheating Furnace, Power Plant, Heat Treatment Plant
• Coke Oven Door, Soaking Pit, Rotary Kiln, Aluminium Industry
• Small Capacity Ladle, Reheating Furnace, Rotary Kiln, Aluminium Plant
• Power Plant, Petrochemicals Ladle Patching
• Glass Tank Furnace, Power Plant, Burner Blocks, Ladle
• Ladle, Rotary Kiln
• Ladle Shaft Kiln

Nozzlex nozzle well filler is a free-flowing refractory particular material used in the ladle or tundish sliding gate to prevent skulling and steel freeze-off and ensure easy opening at the start of casting.

Nozzlex is a highly refractory, granular product with selected particle size and distribution, which remains flowable at high temperature, ensuring consistent and trouble-free ladle slide gate operation.

For achieving the best results:

• Nozzlex should be pre-heated at around 100C for about an hour to drive out any physical moisture.
• The nozzle cavity should be cleaned of slag and any refractory particles before application.
• The quantity of Nozzlex to be applied should be carefully determined so that the nozzle cavity is entirely filled, with a slight mound at the nozzle top. It should be applied with a suitable applicator to ensure that the product is applied at the proper place.Function

  Successful operation of ladle slide gate depends to a large extent on the use of proper nozzle filling compounds and operating conditions, as well as nozzle well block geometry. To meet these demanding conditions, the nozzle filling compounds should have sufficient refractoriness to prevent sintering of the particles at high temperature, and ensure good flowability.

  Benefits
  • Good nozzle opening performance is ensured
  • The need for oxygen lancing for opening the slide gate nozzle is minimized
  • Well block and nozzle life is increased
  • The life of the slide gate plate is extended
  • Due to good nozzle opening performance, Nozzlex drastically reduces the incidence of ladle return from the casting platform.

Radex is a range of insulating cover powders designed for use in the ladle or tundish to prevent heat loss during casting. Radex is a ver y lowdensity, free-flowing powder, formulated to reduce heat loss to a minimum. It is normally supplied in handleable bags for the Ladle/Tundish.

Radex powders are usually added to the ladle surface just before it leaves the secondary refining station to make its way to the continuous casting machine. In the tundish, it is added when the steel reaches 1/3 to 2/3 full. The application rate is sufficient to give a 25mm layer of powder on the surface of the steel. In the case of the tundish, it should be continually maintained to provide a black cover throughout the casting process.

Temperature control of the steel is vital in continuous casting, particularly over long casting periods. Casting should be conducted as close as possible to ensure minimum segregation. To reduce the need to cast with high superheat, it is essential to have an efficient ladle or tundish insulating cover. The application of Radex powders minimises heat loss from the ladle and the tundish.

• Radiation heat losses from the top surface of the ladle are reduced.
• Consistent metal temperatures in the ladle are enhanced, providing smoother casting operation.
• The ladle metal surface can be covered with Radex in slag free tapping. Ladle ser vice life is increased.
• High efficiency assures cost effectiveness.
• The need for preheated refractory lined tundish lids is eliminated.