I. Overview

The I-RTC rock multi-functional thermal conductivity tester uses the transient plane heat source method, based on TPS transient plane heat source technology, with a Hot Disk probe. It is specifically designed for measuring the thermal conductivity, thermal diffusivity, specific heat capacity, heat storage coefficient, and thermal resistance of anisotropic materials such as geotechnical materials, rocks, polymers, concrete, composite plates, paper honeycomb boards, solids, powders, liquids, pastes, coatings, films, insulation materials, and heat insulation materials. It is an important piece of equipment for universities and testing institutions.

II. Compliance: Equipment Reference Standards:

1. DZ/T0276.14-2015 People's Republic of China Geological Mineral Industry Standard Test Procedures for Physical and Mechanical Properties of Rocks Part 14: Rock Thermal Conductivity Test.

2. ISO22007-2-2008 Test methods for thermal conductivity and thermal diffusivity;

3. GB/T 32064-2015 Transient plane heat source test method for thermal conductivity and thermal diffusivity of building materials.

III. Advantages of this instrument:

(1) Direct measurement of heat propagation, saving a significant amount of time;

(2) Unlike static methods, it is not affected by contact thermal resistance;

(3) No special sample preparation is required; for solid materials, only a relatively flat sample surface is needed. Different types of materials use different test schemes and calculation mathematical models, with advantages such as fast measurement speed, wide applicability, and the ability to successfully avoid the influence of natural convection during the experiment. It is currently a popular testing method due to its wide range of applicable materials, wide thermal conductivity range, simple sample processing, and fast testing speed.

IV. Main Technical Parameters:

1. Thermal conductivity measurement range: 0.001～600 w/(m.k), resolution 0.00015 w/(m.k);

2. Thermal diffusivity range: 0.15～120 m2/s;

3. Heat storage coefficient range: 0.1～30 w/(m2.k);

4. Specific heat capacity range: 0.1～5 kJ/(kg.℃);

5. Thermal resistance range: 0.5～0.000005 mm2.k/w;

6. Temperature measurement accuracy: ≤0.001℃;

7. Measurement relative error: ≤3%;

8. Repeatability error: ≤ 3%;

9. Test time: 1～120 seconds.

10. Probe heating material: Nickel metal; Thickness 0.01mm, hot wire width: 0.35±0.03mm;

11. Probe diameter; Standard configuration: Diameter Φ15mm or Φ7.5mm, probe diameters can be customized: Φ30mm, Φ15mm, Φ7.5mm, Φ4mm, or a combination thereof.

12. Test temperature: Room temperature (standard configuration), variable temperature: -50℃～150℃ (optional)

12. Power: 0-20w;

13. Maximum voltage: 20V;

14. Maximum current: 1A;

15. Resistance: Approximately 15Ω, subject to the resistance marked on the probe;

16. Protective layer material: Polyimide film (Kapton); Single layer thickness: 0.06mm;

17. Probe diameter: Φ30mm, Φ15mm, Φ7.5mm.

18. Test sample requirements:

a. Solid block or circular, square, or irregularly shaped samples, no special preparation required, only a relatively flat sample surface is needed, with a dedicated sample clamping device.

b. No special requirements for powdery, pasty, or liquid substances, with a dedicated sample test box.

c. Thinner materials (thickness 0.01～1mm) are tested using a dedicated test scheme and mathematical model.

d. High-conductivity materials (100～500W) are tested using a dedicated test scheme and mathematical model.

e. Heat insulation materials (0.010～0.050W) are tested using a dedicated test scheme and mathematical model.

19. Software: Uses fully automatic testing software for quick and accurate analysis of sample test parameters and report output.

20. Power supply: AC 220V±10%，50/60 Hz, total power: <500w;

Software analysis chart