INDUSTRY COMPONENT

Probe Assembly

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

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Component Specifications

Definition
A specialized assembly designed for direct immersion into molten metal baths to extract representative samples for real-time chemical composition analysis. This critical component of molten metal composition analyzers withstands extreme temperatures (typically 1200-1600°C) while maintaining structural integrity and sample purity during the sampling process.
Working Principle
The probe assembly operates through pneumatic or mechanical actuation to penetrate the molten metal surface, where a vacuum system draws a controlled sample into a pre-chamber. Thermal protection systems maintain probe integrity while ceramic or refractory materials prevent contamination. The sample is then transferred to the analyzer for spectroscopic or chemical analysis.
Materials
High-alumina ceramic (Al₂O₃ ≥ 99%) tip, silicon carbide (SiC) protective sheath, stainless steel 316L body, quartz glass sampling tube, graphite gaskets, and ceramic fiber insulation
Technical Parameters
  • Service Life 50-100 cycles
  • Response Time < 8 seconds
  • Sample Purity ≥ 99.8%
  • Connection Type Quick-disconnect flange DIN 28403
  • Immersion Depth 300-500 mm
  • Sampling Volume 15-25 ml
  • Operating Temperature 1200-1600°C
Standards
ISO 14284, DIN 50602, ASTM E1019

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Probe Assembly.

molten metal probe composition analyzer probe high-temperature sampling metallurgical analysis probe steel analysis probe foundry testing equipment Probe Assembly Probe Assembly in Basic Metal Manufacturing

Parent Products

This component is used in the following industrial products

Molten Metal Composition Analyzer

Real-time analyzer for molten metal alloy composition during production.

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Engineering Analysis

Risks & Mitigation
  • Thermal shock failure
  • Ceramic tip fracture
  • Sample contamination
  • Incomplete sample transfer
  • Operator exposure to molten metal
FMEA Triads
Trigger: Rapid temperature change during immersion
Failure: Ceramic tip thermal cracking
Mitigation: Pre-heat probe to 800°C minimum before immersion, use graded ceramic materials
Trigger: Slag accumulation on probe tip
Failure: Inaccurate chemical analysis
Mitigation: Implement slag detection sensors, use protective gas shrouding
Trigger: Vacuum system malfunction
Failure: Incomplete sample collection
Mitigation: Regular vacuum pressure monitoring, redundant backup systems

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5% for major elements (C, Si, Mn), ±0.02% for trace elements
Test Method
ASTM E1019 - Standard Test Method for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and Iron

Buyer Feedback

★★★★☆ 4.6 / 5.0 (35 reviews)

"The technical documentation for this Probe Assembly is very thorough, especially regarding technical reliability."

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

"Testing the Probe Assembly now; the technical reliability results are within 1% of the laboratory datasheet."

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.
Level Sensor
Level sensor for continuous monitoring of molten metal height in industrial furnaces and casting systems.
Actuator Interface
Actuator interface for precise molten metal level control in casting systems

Frequently Asked Questions

What maintenance does the probe assembly require?

Regular inspection for ceramic tip erosion, replacement of consumable graphite components after 20-30 cycles, and calibration verification after every 10 samples. Complete rebuild recommended every 50 cycles.

How does the probe prevent sample contamination?

Uses high-purity ceramic materials (99% Al₂O₃) that resist dissolution in molten metals, inert gas purging before sampling, and controlled vacuum extraction to minimize slag inclusion.

Can this probe be used for different metal types?

Yes, with material adjustments. Standard probes work for steel and iron. Special silicon carbide or boron nitride tips are required for aluminum or copper alloys to prevent chemical reactions.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Primer Layer Process Additives