The Ladle Nozzle for Steelmaking, also known as a ladle slide gate nozzle, is a critical refractory component used to control the flow of molten steel from the ladle to the tundish during continuous casting. Our nozzles are manufactured from high-quality materials such as sintered corundum, fused corundum, fused mullite, aluminum (zirconium) carbon, and spinel carbon, bonded with advanced resin combinations and formed under high pressure.
Technical Specifications
| Items | Z-70 | Z-95-1 | Z-95-2 | Z-95-3 | Z-95-4 | W-1 | W-2 |
|---|---|---|---|---|---|---|---|
| Zr(Hf) O2 (%) ≥ | 70 | 93 | 93 | 93 | 93 | / | / |
| Al2O3 (%) ≥ | / | / | / | / | / | 75 | 80 |
| Apparent porosity (%) ≤ | 22 | 20 | 16 | 15 | 13 | 24 | 18 |
| Bulk Density (g/cm3) ≥ | 3.8 | 4.5 | 4.8 | 5.1 | 5.3 | 2.3 | 2.6 |
Key Features
High Thermal Resistance: Can withstand operating temperatures up to 1700°C, depending on material.
Excellent Wear & Corrosion Resistance: Durable against molten steel, slag, and oxidation.
Smooth Flow Control: Optimized design ensures controlled, uniform molten steel flow.
Long Service Life: High density and superior refractory composition ensure extended durability.
Customizable Material & Size: Supports various compositions such as Alumina Carbon, Zirconium Alumina Carbon, Magnesia Carbon, Spinel Carbon, and Zirconia inserts.
Precise Casting Control: Sliding plates and tundish nozzles allow fine adjustment of pouring speed.
High Mechanical Strength: Cold Crushing Strength up to 150 MPa for upper/lower nozzle grades.
Typical Applications
Steelmaking Plants: Oxygen steelmaking (BOF), Electric Arc Furnace (EAF), and ladle metallurgy operations.
Continuous Casting Operations: Ensures precise delivery of molten steel into molds.
Tundish Flow Control: High-purity zirconia and alumina sleeves control molten steel volume and speed.
Non-Ferrous Metal Casting: Adaptable for copper, aluminum, and other high-temperature metal flows.
Production Details
Materials: Alumina Carbon, Zirconium Alumina Carbon, Magnesia Carbon, Spinel Carbon, Zirconia inserts
Grades: Upper Nozzle (LZ-70, L-70, L-75, L-85); Lower Nozzle (Al-MgO, Corundum); Tundish Nozzle (Zirconia, Alumina Sleeve)
Key Properties: High thermal stability, corrosion & oxidation resistance, bulk density 2.95–5.4 g/cm³, cold crushing strength 40–150 MPa, apparent porosity ≤23%
Dimensions: Customizable according to ladle and tundish requirements
Manufacturing Equipment: Laeis hydraulic press, Eirich mixer, Shimadzu XRF spectrometer, fully automatic refractory production line
Packing and Shipping Details
Packaging: Wooden pallet packing with protective boxes, customized as per client requirements.
Shipping: Sea freight for bulk goods; express delivery for samples.
Delivery Time: Immediate for standard stock; custom orders depend on specification.
Port of Dispatch: China
Frequently Asked Questions (FAQ)
Q1: Can you customize nozzle size and material?
Yes, we provide full customization for diameter, length, and refractory material according to ladle and tundish requirements.
Q2: What is the typical service life of a ladle nozzle?
Depending on material and steel type, the nozzle can last 50–200 heats. Zirconia inserts can last 10–12 hours of continuous casting.
Q3. Do you provide technical support for installation?
Yes, we offer pre-sales consulting, remote guidance, and installation instructions to ensure optimal performance.
Q4: Can ladle nozzles be used for non-ferrous metals?
Yes, our nozzles can be adapted for molten copper, aluminum, and other high-temperature metals.
Q5: What are your main export markets?
Our products are exported to over 30 countries, including Southeast Asia, Europe, the Middle East, and North America.
