Refractory 5.50g/Cm3 Sliding Lower Nozzle For Steel Continuous Casting
Lower Nozzle Features:
Lower Nozzle is an important part of continuous casting production.Molten steel flows from the tundish into the crystallizer through the tundish nozzle.In this process, the outlet hole will be eroded and widened, the amount of molten steel in unit time will increase, and the surface of molten steel in the mold will increase, so it is necessary to improve the casting speed to digest the excess molten steel.With the further abrasion and expansion of the outlet hole, the adjustment of pouring speed can not digest all the excess molten steel, but it is a waste for the steel enterprises to release the excess molten steel through the emergency outlet.
Production Process
we produced Lower Nozzle is taking the world's advance automatic production equipment and technology, and taking the high quality of the zirconia grain and powder, adding other additives, through the mixing, drying, inspecting, pressing, inspecting,drying, sintering,inspecting, etc. standard andsystem process, then produce the exact size, high quality,longer-working life of the zirconia lower nozzle in tundish.
Chemical composition and Physical Properties
| Model | Chemical Composition | Physical Properties |
| ZrO2+HfO2 (%) | Al2O3 (%) | SiO2 (%) | MgO (%) | Bulk Density (g/cm3) | Apparent Porosity (%) |
| FMXC-N02 | ≥95 | ≤0.2 | ≤0.4 | ≤2.9 | 5.40-5.50 | ≤9.0 |
Bonded Style
Our zirconia lower nozzle is usually embedded in the alumina or corundum and graphite body with the refratcory motar. Also export to oversea countries, and the buyer press the zirconia insert into the body directly.
Size Tolerance:
Middle Hole Diamter:+-0.2mm, other sizes: +-0.5mm.
Packing:
66pcs/carton, 30cartons/wooden box with fumigation treatment.
Exported Countries
India, Pakistan, Iran, Thailand, Turkey, Peru, USA, etc.
Other series Products
For the long working life, high efficiency products what we produce are tundish zirconia nozzle insert,EAF,ladle and converter slag-stopping embedded the zirconia slide gate, zirconia ring, super-long-working-life of zirconia atomizing nozzle, artificial crystal (Sapphire, laser sapphire, etc.) growing equipment rare-earth composite oxide SS ceramic thermal field, etc.series products. The product's quality is equal to, even higher than the ones made in EU, USA, and favorable price, obviously working effects.
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Refractory 5.50g/cm3 Sliding Lower Nozzle For Steel Continuous Casting Images
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