09,22,2026 18 views
In the development of modern materials science, the determination of thermal conductivity and thermal diffusivity is particularly important. These two parameters are not only related to the thermal performance evaluation of materials, but also indispensable indicators in many industrial applications. As a leading player in the industry, Shanghai Chengwei Company has led Xian to introduce advanced laser flash technology, combined with a professional service team, to provide on-site measurement services for Tangshan XX Company. Next, this article will delve into the principles, advantages, applications, and service features of the laser flash method at Shanghai Chengwei Company.
1、 Basic concepts of thermal conductivity and thermal diffusion coefficient
Thermal conductivity is a quantitative expression of a material's thermal conductivity, representing the amount of heat passing through a unit area and a unit temperature difference per unit time, usually measured in W/(m · K). The thermal diffusion coefficient is an indicator that describes the speed and ability of heat diffusion over time. Its formula is α=k/(ρ· c), where k is the thermal conductivity, ρ is the density, and c is the specific heat capacity. The determination of both is of great significance in the fields of material performance analysis, thermal management, and environmental control.
2、 The principle and advantages of laser flash method
Laser flash method is a technique based on laser pulse irradiation on the surface of a material sample, which calculates its thermal conductivity and thermal diffusion coefficient by measuring the temperature change of the reverse side of the sample over time. The core of this method is to use high-energy laser to excite the material, instantly change the surface temperature, and then record the temperature change curve through a high-sensitivity temperature sensor.
1. High precision and speed: The laser flash method can obtain accurate measurement results in a short period of time. Compared with traditional methods, it not only improves the efficiency of testing, but also enhances the reliability of data.
2. Non contact measurement: This method does not require contact with the sample, avoiding damage to the sample itself, which is particularly important for some precious or easily damaged materials.
3. Strong adaptability: Laser flash method is suitable for various materials, including metals, ceramics, polymers, etc., and can meet the needs of different customers.
3、 Application fields of laser flash method
Laser flash method is widely used in multiple industries, including but not limited to electronics, electrical, aerospace, building materials, automotive manufacturing, etc. By measuring the thermal properties of materials, companies can make more scientific decisions in product design and production processes.
1. Electronics industry: With the development of microelectronics technology, the heat dissipation performance of materials is the key to the reliability of electronic components. Laser flash method can help engineers quickly evaluate the heat dissipation ability of new materials.
2. Building materials: In the construction industry, evaluating the thermal insulation performance of materials is crucial. By using laser flash technology, construction companies can optimize material selection and improve building energy efficiency.
3. Aerospace: The aerospace industry requires materials to have good thermal stability and low thermal conductivity, and laser flash method can ensure that materials meet performance standards.
4、 Service Features of Shanghai Chengwei Company
Shanghai Chengwei Company has a high-quality technical team, professional equipment, and rich industry experience. We always pay attention to the needs of our customers.
1. Professional team: Our technicians have undergone rigorous training and are proficient in the operation and data analysis of laser flash method, ensuring high repeatability and accuracy of test results.
2. Advanced equipment: The company is equipped with testing equipment that can meet various complex measurement needs, ensuring that every customer can receive a better service experience.
3. Customer first: We adhere to the goal of customer satisfaction, tailor testing solutions to customers' specific needs and usage environments, and provide personalized services.
4. After sales: After the laser flash method test, we will provide a detailed test report and continuously provide technical support and consultation during the subsequent use to ensure that customers can proficiently apply the measurement results.
5、 Future prospects
With the continuous advancement of technology, the application of thermal conductivity and thermal diffusion coefficient in various industries will only become more widespread. Shanghai Chengwei Company will continue to devote itself to innovative research on laser flash method, introducing more advanced technologies into the service field and providing customers with higher quality services.
In the context of global energy conservation and emission reduction, the thermal performance evaluation of materials is particularly important, and our mission is to assist more enterprises through high-tech means.
VI. Conclusion
The emergence of laser flash method has brought revolutionary changes to the determination of thermal conductivity and thermal diffusion coefficient. As a pioneer in the industry, Shanghai Chengwei Company has met the high-performance material needs of Tangshan XX Company and other customers with technology and services. In the future, we will continue to explore and expand, providing solutions for thermal performance testing in various industries.
If you have any needs in terms of material thermal performance, please feel free to contact us at any time to discuss solutions together.
