Zirconia Nozzle For Steel Casting

Name: Zirconia Nozzle For Steel Casting
Brand: Anyang Changtai Silicon
SKU: 283378917

Main features
Consisternt casting speed
Extend casting time
Able to adapt to large thermal stress

Products Description

Zirconia nozzles for steel casting are critical refractory components in continuous steel casting, primarily used to control molten steel flow from ladles to molds.

Features

High Purity: Manufactured from high-purity zirconia and stabilized for enhanced performance.
Superior Thermal Shock Resistance: Low thermal expansion coefficient enables withstanding extreme temperature fluctuations without fracture, ensuring stable operation during frequent thermal shocks in continuous casting.
Strong Erosion Resistance: High hardness and wear resistance enable the nozzle to withstand erosion from high-temperature molten steel and slag, maintaining its shape and dimensions to ensure stable steel flow.
High Mechanical Strength: Our products possess superior mechanical strength, maintaining structural integrity under high-temperature molten steel pressure for long-term use in demanding conditions.
High Dimensional Accuracy: Manufactured with precision to ensure uniform molten steel flow, enhancing cast steel quality and stable continuous casting operations.

Anyang Changtai Silicon Industry Co., Ltd. is a company specializing in the design, processing, and sales of high-temperature zirconia products. If you would like to purchase high-temperature zirconia products, please contact us. We will respond as soon as possible after receiving your message.

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Product Data

	CT-PMD1	CT-PMD2	CT-PMD3
Apparent Porosity (%)	11-12	8-10	6-8
Bulk Density (g/cm³)	≥4.9	≥5.2	≥5.3
ZrO + HfO	≥94.0	≥95.5	≥96.0
SiO	1.1	0.23	0.5
TiO₂	0.2	0.2	0.1
Fe₂O₃	0.5	0.05	0.05
Al₂O₃	0.4	0.42	0.1
CaO	0.2	0.15	0.15
MgO	2.5	2.4	2.4
Na₂O	0.03	0.01	0.01

Our Products

Precautions for Use

Control the Preheating Process

Preheating is a critical step to prevent thermal shock cracking of the nozzle.

The preheating temperature must be gradually increased, avoiding direct contact with high-temperature molten steel. Typically, preheating to 800-1000°C is required.
Maintain a steady heating rate of 5-10°C/min. Rapid heating or localized overheating is strictly prohibited.
After preheating, hold the nozzle at temperature for a period to ensure uniform internal and external temperatures, minimizing thermal gradients.

Standardized Installation

Improper installation may cause uneven stress distribution or molten steel leakage, compromising service life and production safety.

Inspect the nozzle externally before installation to confirm no cracks, chipped edges, or other defects. Simultaneously, clear debris from connection points.
During assembly, ensure the nozzle's centerline aligns with those of the ladle and mold to prevent localized wear caused by misalignment.
Apply moderate tightening force-excessive looseness may cause leakage, while excessive tightness may induce internal stresses leading to cracking.

Continuous Monitoring

During operation, observe the nozzle's performance in real time and address abnormalities promptly to prevent escalating failures.

Monitor molten steel flow stability closely. Sudden increases or decreases in flow rate may indicate internal blockage or wear, requiring immediate investigation.
Monitor the nozzle's outer wall temperature. Localized abnormal heating may indicate erosion or cracking, requiring an assessment of continued usability.
Prevent inclusions from secondary steel oxidation adhering to the nozzle's inner wall. Excessive inclusions can impede molten steel flow and accelerate nozzle wear.

Implement Safety Precautions

Zirconia nozzles operate at high temperatures, requiring operators to guard against risks from heat exposure and component damage.

Operators must wear heat-resistant protective gear, such as fire-resistant suits and protective face shields, to prevent burns.
If cracks or molten steel leakage are detected in the nozzle, immediately halt pouring according to procedures. Continued use under faulty conditions is strictly prohibited.
Discarded nozzles must be cooled to room temperature before disposal to prevent fires or burns from hot components.

Why Choose Us?

Anyang Changtai Silicon Industry Co., Ltd. maintains a comprehensive product traceability system to ensure product performance meets the highest quality standards stipulated by ISO9001, ISO14001, and SGS guidelines, managed through our rigorous quality control system.
Our zirconia products feature high purity, exceptional high-temperature corrosion resistance, extended service life, and outstanding quality stability. Furthermore, we tailor designs to meet specific customer requirements for diverse operational environments and conditions. Our products are exported to markets worldwide. Click the button below to request a quote!

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