Zirconia Bore Insert
Zirconia bore insert from Anyang Changtai Silicon Industry. Sintered stabilized zirconia core for tundish metering nozzle and CNM quick‑change nozzle. Multiple ZrO₂ grades, anti‑alumina clogging, custom bore sizes for steel continuous casting.
Products Description
Zirconia bore insert is the inner flow channel core part for tundish metering nozzles, CNM quick‑change lower nozzles and other continuous casting refractory assemblies. It is sintered stabilized zirconia, embedded inside alumina‑carbon outer refractory body. It contacts molten steel directly, controls flow bore size, reduces alumina adhesion and bore enlargement during steel casting.
Material Grades & Technical Index
Three standard grades available: CT‑PMD1, CT‑PMD2, CT‑PMD3
| Item | CT‑PMD1 | CT‑PMD2 | CT‑PMD3 |
|---|---|---|---|
| ZrO₂+HfO₂ | ≥94.0% | ≥95.5% | ≥96.0% |
| Bulk Density | ≥4.9 g/cm³ | ≥5.2 g/cm³ | ≥5.3 g/cm³ |
| Apparent Porosity | 11‑12% | 8‑10% | 6‑8% |
About the Product
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Production Process
Stabilized zirconia powder forming, high‑temperature sintering, precision bore grinding. It can be matched with vibration cast or isostatic pressed nozzle bodies.
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Application
Used for billet, small slab continuous casting lines. Suitable for carbon steel, low alloy steel, pipeline steel, boiler steel, stainless steel and ultra‑low carbon IF steel.
Customization Scope
- Inner bore diameter: 12 mm to 50 mm
- Outer dimension, length and shape per drawing or sample
- Formulation adjustment for anti‑clogging requirement
- Single insert supply or pre‑embedded composite nozzle supply
Factory environment
How To Contact Us
Send your required bore size, zirconia grade, steel grade and quantity for quotation.
Our address
West Gaoping Village, Zhangwu Office, Longan District, Anyang City, Henan Province,China
Phone Number
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