Thermal conductivity is a key parameter measuring a material’s heat transfer performance. Whether improving electronic device cooling efficiency or enhancing building insulation, precise measurement is crucial. Accurate data aids in developing high-performance materials, guiding production processes, improving product quality, and reducing energy consumption. There are various methods to measure thermal conductivity, including steady-state and transient methods. Steady-state measures heat flow under constant temperature gradients. Transient methods measure instantaneous temperature changes for rapid and accurate results. Among numerous measurement methods and devices, selecting a precise, reliable, and efficient thermal conductivity tester is essential. Zeal Instruments provides global users with efficient, accurate thermal conductivity testing solutions, meeting the testing needs of materials, lithium batteries, and other industries.

About Zeal Instruments

Founded in 2014, Zeal Instruments excels in thermal analysis and nondestructive measurement technology, offering innovative solutions for assessing thermal parameters and evaluating new materials and lithium-ion batteries. Our commitment to continuous innovation drives breakthroughs in various industries.

Mission and Vision

Zeal Instruments aims to advance thermophysical property testing, providing precise and reliable testing solutions to accelerate innovation across diverse sectors. Our vision is to lead the industry in developing advanced testing instruments and solutions for new materials, raising global standards in material and energy research.

Quality Policy and Objectives

Zeal Instruments focuses on maximizing customer value and minimizing inefficiencies through optimized resource management. Our quality policy emphasizes lean production and service excellence, ensuring superior standards. Recognized as a Science and Technology SME in January 2024, we are dedicated to maintaining high-quality standards in all operations.

Thermal Conductivity Testing of Insulating Materials

Accurate thermal conductivity testing is essential for evaluating insulating materials. The HFM 510A Heat Flow Meter is designed to meet rigorous standards, such as GB/T 10295, ASTM C518, and ISO 8301. It is capable of testing a wide range of low thermal conductivity materials, including expanded polystyrene, extruded polystyrene, PU rigid foam, mineral wool, expanded perlite, foam glass, natural fiber materials, cork, wool, aerogel, concrete, and gypsum. This device ensures precise measurements, facilitating the development and quality control of advanced insulating materials.

Heat Flow Meter HFM 510A 

The HFM 510A is highly automated, featuring automatic lifting and lowering of the heating plate, load force testing, thickness measurement, temperature control, and furnace door operation. Its dual heat flow sensors enhance precision, while independent temperature control for the upper and lower plates ensures accurate results. The system includes external oil bath cooling and nitrogen gas purging for sample drying, maintaining low environmental sensitivity and strong stability across a wide temperature range. It adapts to uneven sample surfaces and offers molds for particle sample preparation, ensuring minimal sample preparation requirements.

The HFM 510A includes advanced software offering thermal conductivity extension accessory modes and supports offline operation for experimental flexibility. It provides fully automated data collection, real-time monitoring and display, and automatic test report generation. Users can log in to access historical records and customize data storage and export. The device features high peripheral expandability with a built-in industrial computer, allowing connections to peripherals such as a mouse, keyboard, and printer. The high-definition touchscreen display and intelligent human-machine interface enhance usability. The HFM 510A operates within an environment of -5°C to 45°C with <95% RH, and its Peltier system controls plate temperature from -30°C to 90°C. It accommodates sample sizes up to 300mm in length and width, with heights less than 100mm, and offers a thermal conductivity range from 0.002 W/(m-K) to 1 W/(m-K), scalable up to 2 W/(m-K).

Thermal Conductivity Measurement of Multilayer Composite Materials

Accurate measurement of thermal conductivity in multilayer composite materials is crucial for understanding their heat transfer characteristics. This is particularly significant for complex structures like lithium batteries, known for their diverse layers with varying properties. Assessing both thermal conductivity and thermal diffusivity provides invaluable insights into optimizing these materials for diverse applications.

3D Thermal Properties Analyzer TCA 3DP-160

The TCA 3DP-160 employs non-contact thermography and dynamic 3D data inversion technology to assess thermal properties in complex samples effectively. It accommodates a wide range of sample sizes and adjusts for surface flatness variations, ensuring reliable results. Offering non-destructive testing, it accurately measures the equivalent thermal conductivity of multi-layer thin film stacks. It is capable of handling both homogeneous and inhomogeneous samples. It can manage a wide range of specifications, surface characteristics (such as hardness and roughness), and porosity. The analyzer maintains uniform temperature on its six-sided cold plate. It features precise oil bath temperature control and adjustable ambient temperature settings.

Equipped with non-contact measurement capabilities and automatic compensation for surface and support heat dissipation interferences, the TCA 3DP-160 enhances result accuracy. It boasts user-friendly operation with fully automated experiment initiation and execution. The analyzer clearly presents test data, prediction results and error assessment through a color graphical display. Helps quickly verify experimental results. It supports automatic generation and storage of graphs and process data, enabling seamless historical data queries. Key specifications include longitudinal thermal conductivity ranging from 0.2 W/(m-K) to 5 W/(m-K) and transverse thermal conductivity from 5 W/(m-K) to 100 W/(m-K). Thermal diffusivity ranges from 0.1 mm²/s to 2 mm²/s longitudinally and 2 mm²/s to 50 mm²/s transversely. The analyzer accommodates samples up to 400mm x 250mm in transverse dimensions and thicknesses ranging from 3mm to 20mm, with test durations under 10 minutes and repeatability within 3%. Operating in a temperature range of 0 to 60°C, it ensures stability at 0.03°C and accuracy within 0.1°C.

Thermal Conductivity Testing of Square Lithium Batteries

Accurate measurement of thermal conductivity in square lithium batteries is essential for assessing their heat transfer capabilities. The TCA 2SC-080 Dual-state Thermal Parameter Tester specializes in precise, non-destructive testing of these batteries, particularly focusing on complex core-shell structures. By evaluating thermal conductivity and internal thermal resistance. The tester provides insight into the thermal performance of hard-case lithium battery cells, ensuring optimal design and safety in a variety of applications.

Dual-state Thermal Parameter Tester TCA 2SC-080

The TCA 2SC-080 uses infrared thermography for non-contact temperature measurement and 3D heat transfer model inversion analysis. It can directly and accurately test the thermal conductivity and internal thermal resistance of battery samples. It accommodates a wide range of sample sizes and tolerates varying surface conditions such as hardness, roughness, and porosity. The TCA 2SC-080 automatically configures experimental parameters based on sample details and adjusts settings during testing to deliver precise and reliable results.

Equipped with a 3D heat transfer model for comprehensive testing and inversion analysis, the TCA 2SC-080 measures core transverse thermal conductivity, core longitudinal thermal conductivity, and overall equivalent thermal conductivity. It supports simulation of real-world thermal conditions through external battery charging and discharging equipment. Adjustable cold plate temperatures and flow rates simulate diverse heat dissipation scenarios. Featuring uniform temperature distribution across six-sided cold plates and precise oil bath temperature control, the TCA 2SC-080 ensures consistent and accurate measurements. Its fully automated operation streamlines testing procedures, delivering efficient data acquisition. Key specifications include a maximum sample size of 400mm x 250mm x 80mm, test durations under 15 minutes, and repeatability within 8%. Operating temperatures range from 0 to 80℃ with stability at 0.03℃ and accuracy of 0.1℃.

Final Words

Thermal conductivity meters are cutting-edge tools that enable precise, non-invasive testing of thermal properties of materials ranging from complex multi-layer composites to lithium batteries. Zeal Instruments offers a wide range of test instruments, including thermal conductivity meters using the heat flow method. This provides accurate and reliable test results for customers in areas such as lithium batteries and new materials.