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Fluxing Agents Component – Basic Metal Manufacturing

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.

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

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Related Components

Refractory Liner

Refractory liner for molten metal flow control valves, providing thermal insulation and erosion resistance in extreme temperature applications.

Rotary Impeller

A high-speed rotating impeller used in molten metal degassing systems to inject inert gases and remove impurities.

Probe Assembly

High-temperature sampling probe for molten metal composition analysis in metallurgical processes

Level Sensor

Level sensor for continuous monitoring of molten metal height in industrial furnaces and casting systems.

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.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Fluxing Agents