INDUSTRY COMPONENT

Carbon Additive

Carbon additive for continuous casting mold powder to control steel solidification and surface quality.

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Component Specifications

Definition
A carbon-based material added to continuous casting mold powder formulations to regulate thermal conductivity, control solidification patterns, prevent steel sticking to the mold, and improve the surface quality of cast steel products by forming a protective slag layer.
Working Principle
Carbon additives function by creating a reducing atmosphere at the mold-steel interface, controlling heat transfer through the slag layer, preventing oxidation of the steel surface, and facilitating uniform solidification by modifying the viscosity and melting characteristics of the mold powder.
Materials
Typically composed of petroleum coke, graphite, calcined anthracite, or carbon black with carbon content ranging from 85-99%, low ash content (<5%), low sulfur (<0.5%), and controlled particle size distribution (usually 50-200 microns).
Technical Parameters
  • Moisture <0.5%
  • Ash Content <5%
  • Bulk Density 0.5-0.8 g/cm³
  • Fixed Carbon >90%
  • Particle Size 50-200 microns
  • Carbon Content 85-99%
  • Sulfur Content <0.5%
Standards
ISO 80000-9, DIN 51733, ASTM D3172

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Carbon Additive.

carbon additive continuous casting mold powder steelmaking solidification control surface quality casting flux steel production Carbon Additive 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
  • Inconsistent carbon content leading to variable solidification
  • Excessive carbon causing excessive slag viscosity
  • Contamination from impurities affecting steel quality
  • Particle size variations impacting distribution uniformity
FMEA Triads
Trigger: Inconsistent carbon content in raw materials
Failure: Variable solidification rates and surface defects
Mitigation: Implement strict incoming material testing and batch blending
Trigger: Improper particle size distribution
Failure: Uneven distribution in mold powder leading to localized defects
Mitigation: Use controlled grinding and sieving processes with regular particle size analysis
Trigger: Moisture absorption during storage
Failure: Reduced effectiveness and potential steel quality issues
Mitigation: Store in dry, sealed containers with controlled humidity environments

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Carbon content ±1.5%, particle size distribution within specified range ±10%
Test Method
ASTM D3172 for carbon content, ISO 13320 for particle size analysis, ASTM D4239 for sulfur determination

Buyer Feedback

★★★★☆ 4.7 / 5.0 (13 reviews)

"Found 41+ suppliers for Carbon Additive on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Carbon Additive is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Basic Metal Manufacturing environments. No issues with the Carbon Additive so far."

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Frequently Asked Questions

What is the primary function of carbon additive in mold powder?

The primary function is to control heat transfer and create a reducing atmosphere at the mold-steel interface, preventing oxidation and improving surface quality of cast steel.

How does carbon content affect mold powder performance?

Higher carbon content improves thermal insulation and reduces slag melting rate, while lower carbon content increases thermal conductivity and accelerates solidification.

What are common sources of carbon additives?

Common sources include petroleum coke, graphite, calcined anthracite, and carbon black, selected based on purity, particle size, and cost considerations.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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