Fully Automatic Dual-Plate Thermal Conductivity Tester (Guarded Hot Plate Method)
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Whats/App: +86 181 0160 0864
Web: gellowen.co.uk
Fully Automatic Dual-Plate Thermal Conductivity Tester (Guarded Hot Plate Method) is a precision instrument designed for thermal conductivity measurement of homogeneous and heterogeneous board materials. Based on unidirectional steady-state heat transfer principles, the instrument measures heat flux through the sample, the temperature difference between the upper and lower surfaces, and the sample thickness to calculate thermal conductivity.
Thetesteris fully computer-controlled and automates all testing and data processing, ensuring high accuracy and reproducibility. It is suitable for both solid boards and loose, granular, or soft materials when used with appropriate sample fixtures.
Application
This testeris suitable for testing the thermal conductivity of:
Plastics, rubber, glass, and fiber boards
Polystyrene foam (EPS), extruded polystyrene foam (XPS), polyurethane rigid foam
Foamed concrete, hollow glass, wood boards
Various insulation materials
Granular, loose, or soft materials (with optional fixtures)
Typical applications include:
Quality inspection of insulation and construction materials
R&D in thermal performance of polymer and foam materials
Academic research in thermal properties of solid and granular samples
Industrial production control for plastics, foams, and composite boards
Standards
The instrument complies with the following international and national standards:
GB/T 10294-2008 – Determination of Steady-State Thermal Resistance and Related Properties of Insulating Materials
GB/T 3399-1982 – Test Method of Thermal Conductivity for Plastics by Guarded Hot Plate Method
GB/T 10801.1-2002 – Measurement of Thermal Conductivity for Polyurethane Rigid Foam in Thermal Insulation
GB/T 10801.2-2002 – Measurement of Thermal Conductivity for Extruded Polystyrene Foam (XPS)
GB/T 3139-2005 – Test Method of Thermal Conductivity for Fiber Reinforced Plastics
GB/T 17794-2008 – Flexible Foam Rubber and Plastic Thermal Insulation Products
Parameters
| Item | Specification |
|---|---|
| Thermal conductivity range | 0.001–3.000 W/m·K |
| Measurement accuracy | ±2% |
| Repeatability | ±1% |
| Hot plate temperature range | Room temperature–150 °C (standard); optional up to 300 °C |
| Hot plate resolution | 0.01 °C |
| Cold plate temperature range | 0–60 °C (standard); optional -5–60 °C |
| Cold plate resolution | 0.01 °C |
| Sample thickness | 0–100 mm; resolution 0.001 mm; automatic measurement |
| Applied pressure | 0–500 N; resolution 0.1 N |
| Sample size | 300×300×(5–50) mm (standard); custom sizes available |
| Automation | Fully computer-controlled testing and data processing |
| Test duration | 60 minutes |
| Power supply | 220 V / 50 Hz; 500 W |
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