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DRL-III Thermal Conductivity Tester (Heat Flow Method)

This instrument mainly tests the thermal resistance of thin thermal conductors, solid electrical insulation materials, thermal conductive silicone grease, resin, rubber, beryllium oxide ceramics, alumina ceramics and other materials, as well as the contact thermal resistance at solid interfaces and the thermal conductivity of materials. The testing material is in solid flake form, and adding a frame can detect powder and paste materials.

Standard

MIL-I-49456A (insulation sheet, thermal conductive resin, thermal conductive glass fiber reinforced);

GB 5598-85 (Determination of thermal conductivity of beryllium oxide ceramics)

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Instrument selection

DRL-3 (enhanced type) is an increase in hot electrode temperature based on DRL-3 (standard type), mainly used for testing materials with slightly higher testing temperature requirements and lower thermal conductivity; DRL-3A is mainly used for testing materials with slightly higher temperature requirements; DRL-3B is mainly used for measuring insulation materials.

Parameter

Model	DRL-3(Standard type)	DRL-3(Enhancement type)	DRL-3A	DRL-3B
Sample size	≤Φ30mm	≤Φ30mm	≤Φ30mm	Φ50mm
Specimen thickness	0.02-20mm	0.02-20mm	0.02-20mm	0.3-5mm
Hot pole temperature	Room temperature -99.99 ℃	Room temperature-200℃	Room temperature-200℃	Room temperature-500℃
Cold pole temperature	0-99.0℃	0-99.0℃	Forced air cooling	5-60℃
Thermal conductivity	0.1～45 W/m*k	0.05～45 W/m*k	0.05～45 W/m*k	0.003～1 W/m*k
Thermal resistance(m²*K/W)	0.000005～0.05	0.000005～0.05	0.000005～0.05	0.0003～1.5
Precision	≤3％	≤3％	≤3％	≤4％
Pressure measurement	0～1000N	0～1000N	0～1000N	0～1000N
Displacement measurement	0～40mm	0～40mm	0～40mm	0～40mm
Pressure control	electric	electric	electric	electric
Experimental method	a. Thermal resistance testing of samples under different pressures. b. Material thermal conductivity testing. c. Contact thermal resistance test. d. Thermal resistance test of aluminum substrate (composite plate). e. Aging reliability testing.			Thermal resistance and thermal conductivity tests under different pressures.
Power supply	Voltage: 220V, power less than 1KW.