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Graphite and Carbon Materials Thermal Conductivity Tester

Published: 3/27/2019

High-temperature tester based on the direct-current longitudinal heat-flow method for measuring thermal conductivity of electrically conductive materials. Suitable for metals and graphite across a wide conductivity range with automated data acquisition and analysis.

Product Description

The DRX-II-JH measures the thermal conductivity of conductive materials at elevated temperatures using a longitudinal heat-flow method in which the specimen is directly energized. The system is designed for metals such as copper and stainless steel, as well as non-metal conductive materials including graphite, enabling research on heat transfer performance.

The measurement approach conforms to GB3651-83 for high-temperature thermal conductivity of metals and GB8722-88 for intermediate-temperature thermal conductivity of graphite materials. Automated control allows computer-driven testing with controllable heating rates, data acquisition, and report output, and the system can be configured with vacuum or protective atmospheres as required.

Technical Specifications

ParameterSpecification
Measurement PrincipleDirect-current longitudinal heat-flow method
Standards ComplianceGB3651-83; GB8722-88
Maximum TemperatureRoom temperature to 1000 ℃
Thermal Conductivity Range0.035–40 W/(m·K) and 20–500 W/(m·K) (dependent on material conductivity)
Sample Quantity≥2
Sample Size (Metals)Φ5 × 220 mm (rod)
Sample Size (Graphite)Φ10 × 200 mm; Φ16 × 160 mm (rod)
Thermocouple HolesFrom mid-length, every 50 mm drill Φ3 mm holes, depth 2 mm
Filament SamplesΦ1–3 mm
AccuracyBetter than 5%, up to 2%
AtmosphereVacuum and protective gas options customizable
ControlComputer-automated testing; controllable heating rate
Power Supply220 V AC
Power Consumption≤4 kW
Data OutputPC connection for automated testing and printing
Main ComponentsTest host (1), Data acquisition system (1 set), Electrical control system (1 set), Test software (1 set)
User-SuppliedDesktop computer and printer

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