Aparelho Automático de Condutividade Térmica DRH-II-300
- Descrição
- Investigação
Descrição
Aparelho Automático de Condutividade Térmica DRH-II-300
Introdução
The instrument is based on the principle of unidirectional stable heat conduction. When the upper and lower sides of the sample are at different stable temperatures, the heat flow through the effective heat transfer area of the sample and the temperature difference and thickness between the two surfaces of the sample are measured to calculate the thermal conductivity. It meets the high precision test requirements of material testing research department for thermal conductivity of materials. Principalmente testar plástico, vidro, fibra, espuma, insulation materials, etc.. Amplamente utilizado em faculdades e universidades, unidades de investigação científica, quality inspection departments and production plant material analysis and testing.
Instrument reference standard:
GB/10294-2008 (Determination of steady-state thermal resistance and related properties of thermal insulation materials protective hot plate method);
GB/T3399-1982 (test method for thermal conductivity of plastics, heat shield plate method);
GB/T3139-2005 (test method for thermal conductivity of fiber reinforced plastics) (test method for thermal conductivity of glass fiber reinforced plastics).
GB/T10801.1-2002 (polystyrene foam for thermal insulation) requirements for measurement of thermal conductivity of polyurethane rigid foam materials;
GB/T10801.2-2002 (Extruded polystyrene foams for thermal insulation (XPS)) – Requirements for measurement of thermal conductivity of extruded polystyrene foams;
GB/T3139-2005 (Test method for thermal conductivity of fiber reinforced plastics);
GB/T 17794-2008 (flexible foam rubber insulation products) requirements for the measurement of thermal conductivity.
Performance characteristics:
1, automatic thickness measurement: the use of high-precision displacement sensor measurement, and connected to the computer automatic thickness measurement, reduce human error.
2, automatic pressure system: computer automatic pressure, can test the thermal conductivity under different pressures, more scientific than manual pressure, more data, better repeatability.
3, the use of double flat detection, maior precisão.
Main technical indicators:
1, faixa de condutividade térmica: 0.001 ~ 3.000W/mk;
2, precisão do teste: ± 3%;
3, tamanho da amostra: double specimen 300×300×(10-50)milímetros; Flatness: < 0.05 milímetros.
4, faixa de temperatura de superfície quente: room temperature ~ 100℃, Resolução de temperatura 0,01 ℃, precisão da medição: 0.05℃;
5, faixa de temperatura de superfície fria: 0 ~ 60℃, Resolução de temperatura 0,01 ℃;
6, computer control automatic test, processamento de dados, and generate test reports, can be printed out;
7, the use of high-precision displacement sensor and connected to the computer automatic thickness measurement, measuring range 0– 50milímetros, resolution 0.01mm;
8, can be automatically pressurized, detect the thermal conductivity under different pressure states, pressure range 0– 1000N adjustable, resolution 0.1N.
9, hot and cold plate temperature difference: the default value of 20℃, users can also set their own
Common standard temperature difference: 20℃ Common temperature difference range 15-25℃
Instrument configuration:
1, DRH-II-300 automatic test host,
2, a set of software,
3, a high precision constant temperature sink,
4, one desktop computer (according to the contract configuration).
