INDUSTRY COMPONENT

Alumina Component

Alumina component for continuous casting mold powder systems in steel manufacturing.

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Component Specifications

Definition
A specialized refractory component made primarily from alumina (Al₂O₃) used within continuous casting mold powder systems to regulate heat transfer, lubricate the mold-strand interface, and control steel solidification during the continuous casting process in steel production.
Working Principle
The alumina component functions by maintaining thermal insulation at the meniscus region of the mold, reducing heat loss from the molten steel to the copper mold. It melts progressively to form a liquid slag layer that lubricates the strand, absorbs inclusions, and creates a uniform heat flux profile for controlled solidification of the steel shell.
Materials
High-purity alumina (≥85% Al₂O₃) with silica (SiO₂), calcium oxide (CaO), and sodium oxide (Na₂O) additives; may include carbonaceous materials for melting rate control.
Technical Parameters
  • Melting Point 1100-1300°C
  • Carbon Content 3-8%
  • Al₂O₃ Content 85-95%
  • Viscosity at 1300°C 0.5-2.0 Pa·s
  • Basicity (CaO/SiO₂) 0.8-1.2
  • Particle Size Distribution 80% < 75μm
Standards
ISO 10081, DIN 51060

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Alumina Component.

alumina component continuous casting mold powder refractory material steel casting mold flux Al₂O₃ component casting lubrication Alumina Component in Basic Metal Manufacturing

Parent Products

This component is used in the following industrial products

Continuous Casting Mold Powder

Granulated flux material for continuous casting molds in steel production.

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Engineering Analysis

Risks & Mitigation
  • Thermal shock cracking
  • Inconsistent melting leading to surface defects
  • Alumina buildup causing operational disruptions
  • Chemical incompatibility with specific steel grades
FMEA Triads
Trigger: Rapid temperature fluctuations during casting start-up
Failure: Thermal cracking of alumina component
Mitigation: Implement controlled preheating protocols and use graded alumina compositions
Trigger: Incorrect alumina/silica ratio
Failure: Premature melting causing inadequate insulation
Mitigation: Maintain strict chemical composition control and implement real-time slag analysis

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Chemical composition ±1.5%, particle size distribution ±5%
Test Method
XRF chemical analysis, laser diffraction particle sizing, high-temperature viscometry

Buyer Feedback

★★★★☆ 4.9 / 5.0 (26 reviews)

"As a professional in the Basic Metal Manufacturing sector, I confirm this Alumina Component meets all ISO standards."

"Standard OEM quality for Basic Metal Manufacturing applications. The Alumina Component arrived with full certification."

"Great transparency on the Alumina Component components. Essential for our Basic Metal Manufacturing supply chain."

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Frequently Asked Questions

What is the primary function of alumina in mold powder components?

Alumina provides thermal insulation, controls melting characteristics, and contributes to slag viscosity for optimal lubrication and heat transfer during continuous casting.

How does alumina content affect mold powder performance?

Higher alumina content increases viscosity and melting temperature, improving insulation but requiring careful balance with other oxides to maintain proper melting rate and lubrication.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Alloying Elements Aluminum Additive