INDUSTRY COMPONENT

Crucible Body

Crucible body is the main structural component of a refractory crucible, designed to withstand extreme temperatures and chemical corrosion in industrial melting processes.

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Component Specifications

Definition
The crucible body is the primary containment vessel within a refractory crucible assembly, engineered to hold and protect molten materials during high-temperature operations. It serves as the core structural element that maintains integrity under thermal stress, chemical attack, and mechanical loading, typically fabricated from specialized refractory ceramics or graphite-based composites to ensure dimensional stability and prolonged service life in foundry, metallurgical, and laboratory applications.
Working Principle
The crucible body operates on the principle of thermal insulation and chemical inertness, utilizing refractory materials with high melting points and low thermal conductivity to contain molten substances while minimizing heat loss. Its design prevents contamination of the melt and withstands repeated thermal cycling through controlled expansion characteristics and structural reinforcement.
Materials
High-alumina ceramics (Al₂O₃ content 85-99%), silicon carbide (SiC), graphite (C), fused silica (SiO₂), or zirconia (ZrO₂) composites; material selection depends on application temperature range (typically 1000-1800°C), chemical compatibility, and thermal shock resistance requirements.
Technical Parameters
  • Density 2.2-3.8 g/cm³
  • Porosity <15%
  • Wall Thickness 10-50 mm
  • Temperature Range 1000-1800°C
  • Compressive Strength >50 MPa
  • Thermal Conductivity 1-30 W/m·K
Standards
ISO 5022, DIN 51061, ASTM C71

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Crucible Body.

crucible body refractory crucible component industrial melting vessel high-temperature container ceramic crucible graphite crucible foundry equipment metallurgical crucible Crucible Body in Non-Metallic Mineral Product Manufacturing

Parent Products

This component is used in the following industrial products

Crucible

A heat-resistant container designed to hold and melt materials at high temperatures within industrial processes.

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Refractory Crucible

A high-temperature resistant container used to hold and melt metals or other materials within an induction melting furnace.

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Engineering Analysis

Risks & Mitigation
  • Thermal shock cracking
  • Chemical erosion from molten metals
  • Mechanical failure under load
  • Contamination from material degradation
FMEA Triads
Trigger: Rapid temperature changes exceeding material's thermal shock resistance
Failure: Radial cracking and catastrophic rupture
Mitigation: Implement controlled heating/cooling rates (<100°C/hour), use graded materials, and apply protective coatings
Trigger: Chemical reaction between refractory material and molten alloy
Failure: Progressive wall thinning and contamination
Mitigation: Select chemically compatible materials (e.g., zirconia for reactive metals), monitor melt chemistry, and establish replacement schedules

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±1.5% on internal dimensions, ±2% on wall thickness, surface roughness Ra ≤ 6.3 μm
Test Method
ASTM C133 for crushing strength, ISO 8894 for thermal conductivity, DIN 51045 for thermal expansion

Buyer Feedback

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Frequently Asked Questions

What is the typical lifespan of a crucible body in continuous operation?

Depending on material and operating conditions, crucible bodies typically last 50-200 cycles; graphite bodies may endure 100+ cycles at 1600°C, while ceramic bodies average 50-80 cycles with proper thermal cycling management.

How does wall thickness affect crucible body performance?

Thicker walls (30-50mm) improve thermal mass and longevity but increase heat-up time; thinner walls (10-20mm) enhance thermal efficiency but reduce mechanical strength. Optimal thickness balances thermal shock resistance with energy consumption.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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