INDUSTRY COMPONENT

Fluxing Agents

Specialized powder used in continuous casting to control heat transfer, prevent oxidation, and lubricate the mold.

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Component Specifications

Definition
Fluxing agents, specifically continuous casting mold powder, are granular or powdered materials applied to the molten steel surface in the mold during continuous casting. They form a liquid slag layer that regulates heat extraction, prevents reoxidation of the steel, absorbs non-metallic inclusions, and provides lubrication between the solidifying steel shell and the copper mold to ensure smooth strand withdrawal and surface quality.
Working Principle
The powder melts on contact with molten steel, creating a liquid slag layer. This layer controls heat transfer from the steel to the mold, preventing rapid solidification and cracks. It acts as a barrier against atmospheric oxygen, absorbs alumina and other inclusions, and lubricates the mold-strand interface via a crystalline or glassy slag film, reducing friction and sticking.
Materials
Typically composed of CaO-SiO2-Al2O3-based oxides with additions of CaF2, Na2O, K2O, Li2O, MgO, and carbon (coke, graphite) to control melting rate and viscosity. May include B2O3 or MnO for specific properties.
Technical Parameters
  • Bulk Density 0.8-1.2 g/cm³
  • Melting Point 1050-1200°C
  • Particle Size 0-1 mm
  • Carbon Content 3-10%
  • Basicity (CaO/SiO2) 0.8-1.2
  • Viscosity at 1300°C 0.5-2.5 Pa·s
Standards
ISO 11323, DIN 51001

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Fluxing Agents.

continuous casting mold powder fluxing agents steel casting lubricant mold slag heat transfer control steelmaking additives casting powder Fluxing Agents 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.

View Product Details

Continuous Casting Mold Flux

Powdered material for steel continuous casting mold protection and lubrication

View Product Details

Engineering Analysis

Risks & Mitigation
  • Inconsistent melting leading to surface defects
  • Excessive viscosity causing lubrication failure
  • Moisture absorption affecting flowability
  • Contamination from impurities
FMEA Triads
Trigger: Incorrect powder composition or carbon content
Failure: Poor slag formation, leading to sticker breakouts or surface cracks
Mitigation: Regular chemical analysis and adjustment of powder blend
Trigger: Uneven powder distribution on molten steel
Failure: Localized heat flux variations, causing longitudinal cracks
Mitigation: Automated powder feeders and monitoring systems

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1 in basicity ratio, ±5% in carbon content, viscosity within ±10% of target
Test Method
ISO 11323 for chemical analysis, rotary viscometer for viscosity, DSC for melting behavior

Buyer Feedback

★★★★☆ 4.5 / 5.0 (32 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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

"Standard OEM quality for Basic Metal Manufacturing applications. The Fluxing Agents arrived with full certification."

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Frequently Asked Questions

What is the primary function of mold powder in continuous casting?

To control heat transfer, prevent oxidation, absorb inclusions, and lubricate the mold for smooth strand withdrawal and high-quality steel surface.

How does carbon content affect mold powder performance?

Carbon acts as a melting rate controller; higher carbon slows melting, ensuring gradual slag formation and consistent lubrication throughout the casting process.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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