Probe Assembly: Operating Temperature 1200-1600°C

Q: 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.

Q: 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.

Q: 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.

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

Parameter	Typical range	Notes & selection driver
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

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 14284, DIN 50602, ASTM E1019

Parent Products

This component is used in the following industrial products

Molten Metal Composition Analyzer

The Molten Metal Composition Analyzer is an industrial system designed for continuous, in-situ analysis of molten metal composition during basic metal manufacturing processes.

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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

Typical Suppliers & Equivalents

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

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Probe Assembly

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

HENGKO

Shenzhen, Guangdong, CN

Also makes: Temperature Probe, Humidity Sensor, Controller / Transmitter and 5 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What maintenance does the probe assembly require?