JW-IV Thermal Conductivity Tester Introduction: The thermal conductivity of materials is an important parameter indicator for studying their physical properties. In industries such as aviation, atomic energy, building materials, non-metallic materials, etc., it is required to predict or actually measure the thermal conductivity of relevant materials. The testing method is divided into steady-state method and dynamic testing method. The instrument is based on the principle of the thermal protection plate method, and is equipped with relevant national standard requirements. Corresponding improvements have been made, and the testing work is automatically completed by the computer, with digital display of each state point. It can also be manually tested, meeting the high-precision testing requirements of the material testing research department for the thermal conductivity of materials. Instrument reference standard: ISO10IS. GB 10295-88. GB/T3399 "Determination of steady-state thermal resistance and related characteristics of insulation materials - Heat flux meter method" Main Technical Performance 1. Application scope This instrument is suitable for measuring the thermal conductivity of homogeneous plate-like materials under dry or different moisture conditions. Thermal conductivity range: 0.0001-1.5w/m • k 2. The flat plate method test can be completed, and the instrument provides controllable testing of the experimental temperature; And it can reach a maximum temperature of 200 ℃ for the hot plate. 3. The digitalization of the instrument and the accuracy of the temperature measuring instrument are better than 0.1K, with automatic electronic compensation for room temperature, and external freezing point compensation can also be used. 4. Power supply: 220V/50HZ. 5. Measurement result: accuracy ± 3% 6. Heating power supply: fluctuation of heating voltage, not exceeding ± 0.5% 7. Can connect to the upper computer (actual computer automatic testing, only takes 15 minutes to test a set of data under stable conditions). 8. It can display experimental parameters and curves, and achieve data printing and output. 9. Implement multiple testing methods; Reference control is helpful for further comparative research on the thermal conductivity of materials. 10. Working conditions
① Environmental temperature range of 10 ° C to 35 ° C
② Relative humidity ≤ 80% RH
③ Room temperature requires stable daily average temperature fluctuation of ≤± 1.5 ℃ 11. Sample size and effective area requirements: Maximum size and effective area: 300 × 300 × 50 (mm) Minimum size: 300 × 300 × 5 (mm) Require a smooth contact surface with the electrode plate.
Introduction: The thermal conductivity of materials is an important parameter indicator for studying their physical properties. In industries such as aviation, atomic energy, building materials, non-metallic materials, etc., it is required to predict or actually measure the thermal conductivity of relevant materials. The testing method is divided into steady-state method and dynamic testing method. The instrument is based on the principle of the thermal protection plate method, and is equipped with relevant national standard requirements. Corresponding improvements have been made, and the testing work is automatically completed by the computer, with digital display of each state point. It can also be manually tested, meeting the high-precision testing requirements of the material testing research department for the thermal conductivity of materials. Instrument reference standard: ISO10IS. GB 10295-88. GB/T3399 "Determination of steady-state thermal resistance and related characteristics of insulation materials - Heat flux meter method"
