Zhengzhou Fangming High Temperature Ceramic New Material Co., Ltd.
Zhengzhou Fangming High Temperature Ceramic New Material Co., Ltd.
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HP composite tundish upper nozzle with embedded zirconia insert-fangming ceramics
Products Features:
Our composite tundish upper nozzle used in the tundish we are producing has the high purity and high density, strong the chemical stability at high temp. state, high strength, excellent crushing resistance, erosion of the steel liquid and slag resistance, strong thermal shock stabilities, super low speed of the diameter enlargement of the nozzle, extremely increased the working life of the nozzle.
Working life of the composite tundish upper nozzle
For the working life of our composite tundish upper nozzle with zirconia insert and alumina body used in the tundish, based on the different smelting steel types in tundish, different casting times of the furnace, the working lifes are different. Fangming NewM can produce the requested the zirconia metering nozzles according to the clients' demand for the shape and sized, the normal working life can reached above 30 hours continuously.
Production Process
Our composite tundish upper nozzle in tundish we produced 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-TUZ-002 | ≥95 | ≤0.2 | ≤0.4 | ≤2.9 | 5.40-5.50 | ≤7.0 |
Usual Size of the metering nozzle:
Height: 90-110mm, middle hole diameter: 12-21mm. Matched with the well block together directly.
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:
ZrO2 Insert: Middle Hole Diamter:+-0.2mm, other sizes: +-0.5mm.
Al2O3 Body:Middle Hole Diamter:+-0.2mm, other sizes: +-1mm.
Exported Countries
India, Pakistan, Iran, Thailand, Turkey, Peru, USA, etc.
