INDUSTRY COMPONENT

Thermal Barrier Coating

Thermal barrier coating applied to continuous casting mold copper plates to reduce heat transfer and extend component lifespan.

Component Specifications

Definition
A specialized ceramic-based coating system applied to the surface of continuous casting mold copper plates to create a thermal insulation layer. This coating reduces heat transfer from molten steel to the copper plate, minimizing thermal stress, preventing premature wear, and maintaining consistent cooling rates during the continuous casting process.
Working Principle
Works by creating a low thermal conductivity ceramic layer (typically yttria-stabilized zirconia) between the molten steel and copper substrate. This layer reduces heat flux through the copper plate, allowing for more controlled solidification of steel while protecting the copper from thermal fatigue and erosion.
Materials
Multilayer system: Bond coat (MCrAlY alloy), Thermal barrier layer (7-8% yttria-stabilized zirconia, YSZ), Top coat (optional sealant). Thickness: 200-500 μm.
Technical Parameters
  • Porosity <15%
  • Adhesion Strength >50 MPa
  • Coating Thickness 200-500 μm
  • Thermal Conductivity 1.0-1.5 W/m·K
  • Operating Temperature Up to 1200°C
  • Thermal Expansion Coefficient 9-11 × 10⁻⁶/°C
Standards
ISO 14923, DIN EN 582, ASTM C633

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Thermal Barrier Coating.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Coating delamination under thermal cycling
  • Crack propagation in ceramic layer
  • Reduced heat transfer affecting solidification rate
  • Chemical degradation from slag interaction
FMEA Triads
Trigger: Thermal cycling stress exceeding coating adhesion limits
Failure: Coating spallation and delamination
Mitigation: Optimize bond coat composition, implement controlled cooling cycles, regular thermal imaging inspection
Trigger: Molten steel/slag chemical attack
Failure: Coating erosion and reduced thermal protection
Mitigation: Apply chemical-resistant top coats, implement slag control practices, monitor coating thickness regularly
Trigger: Improper application or curing
Failure: Poor adhesion and premature failure
Mitigation: Strict process control during application, post-application quality testing, certified application procedures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Coating thickness ±10%, Adhesion strength >50 MPa, Thermal conductivity within 1.0-1.5 W/m·K range
Test Method
ASTM C633 for adhesion, ASTM E1461 for thermal diffusivity, ISO 14923 for coating characterization

Buyer Feedback

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Frequently Asked Questions

What is the primary function of thermal barrier coating on casting molds?

To reduce heat transfer from molten steel to copper plates, minimizing thermal stress and extending mold lifespan while ensuring consistent steel solidification.

How does this coating improve continuous casting efficiency?

By maintaining more stable temperature gradients, it reduces thermal cycling damage, decreases downtime for mold replacement, and improves surface quality of cast steel products.

What maintenance is required for coated copper plates?

Regular inspection for coating degradation, periodic surface cleaning to remove slag buildup, and recoating when thermal protection drops below specified thresholds.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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