参考标准：ASTM D5470-2012（薄的热导性固体电绝缘材料传热性能的测试标准）,MIL-I-49456A（绝缘片材、导热树脂、热导玻纤增强）；GB 5598（氧化铍瓷导热系数测定方法）等。 Brief description: Reference standards: ASTM D5470-2012 (test standard for heat transfer performance of thin thermally conductive solid electrical insulation materials), MIL-I-49456A (insulation sheet, thermally conductive resin, thermally conductive glass fiber reinforced); GB 5598 (Method for measuring the thermal conductivity of beryllium oxide porcelain) and so on.
I. Introduction: It is mainly used to test the thermal resistance of thin thermal conductors, solid electrical insulation materials, thermally conductive silicone grease, resins, rubber, beryllium oxide porcelain, alumina porcelain and other materials, as well as the contact thermal resistance at the solid interface and the thermal conductivity of the material.The detection material is a solid sheet, and the enclosing frame can detect powder state materials and paste materials. Instrument reference standards: MIL-I-49456A (insulation sheet, thermally conductive resin, thermally conductive glass fiber reinforced); GB 5598 (method for measuring the thermal conductivity of beryllia porcelain); ASTM D5470-2012 (thin thermally conductive solid electrical insulation Test standards for heat transfer performance) and so on. Features of thermal conductivity tester: Theservomotor is used to control the precise and automatic pressurization, the automatic thickness measurement device, and the computer to achieve full automatic control.The instrument uses 6-point temperature gradient detection, which improves the test accuracy.It can detect thermal resistance curves under different pressures, and adopts optimized mathematical models to measure multiple parameters such as thermal conductivity and thermal resistance of materials and contact thermal resistance at the interface. Widely used in colleges and universities, scientific research units, quality inspection departments and production plants for thermal analysis analysis of materials.
Second, the main technical parameters:
1. Sample size: Φ30mm or 20x20mm (standard configuration). 2. Sample thickness: 0.001-50mm (standard configuration), typical thickness: 0.02-20mm. 3. Temperature control range of thermal pole: room temperature -100 ℃ (standard configuration), room temperature -299.99 ℃, temperature control accuracy 0.01 ℃. 4. Cold pole temperature control range: 0-99.00 ℃, temperature control accuracy is 0.01 ℃. 5. Thermal conductivity test range: 0.01 ～ 50W / mk, 1 ～ 300W / mk, the computer automatically switches the measuring range. 6. Thermal resistance test range: 0.05 ～ 0.000005m 2 .K / W. 7, pressure measurement range: 0 ~ 1000N, usingservomotorcontrol, canaccuratelyset the pressure value of the holding pressure, thecontrolaccuracy of1N. 8, displacement measurement range: 0 ~ 50.00mm, accuracy of 0.1um. 9, the number of samples: 1 (multi-layer film). 10. Test accuracy: better than 3%. 11. Experimental method: thermal resistance test under different pressure of the sample, material thermal conductivity test, contact thermal resistance test, aging reliability test. 12. Fully automatic computer test and print data output. 13. Power supply: 220V; 50Hz; 500W.
3. Typicaltest materials : 1. Metal materials, stainless steel. 2. Thermally conductive silicone grease. 3. Thermally conductive silicone pad. 4. Thermally conductive engineering plastics. 5. Thermal conductive tape (the sample is very thin and sticky, it is difficult to make a regular single sample, and one side is fixed with transparent plastic and the other is fixed with paper). 6. Aluminum substrate and copper clad laminate. 7, quartz glass, composite ceramics. 8. New materials such as foamed copper, graphite paper and graphite sheet.
Detailed instructions for this instrument plus QQ130732189
Typical users <br /> School of Chemistry and Chemical Engineering, Tsinghua University, School of Materials Science and Engineering, Tsinghua University (Changsha, Hunan) Beijing University of Chemical Technology, 2 Tongji University, Jiangxi University of Science and Technology, East China University of Science and Technology, 3 Ningbo Institute of Materials Science, Chinese Academy of Sciences, 3 Huashuo Technology Co., Ltd., Gedian Branch, Henan Shengmao Solid-state Lighting Technology Company, Shenzhen Baoxuntong Electronics Company, Dalian University of Technology Harbin Institute of Technology Shenzhen Senri Silicone Company Xi'an Limin Electronic Technology Co., Ltd. Zhaoqing Haoming Silicone Company Yibin Global Optoelectronic Energy Saving Company CSR Electric Locomotive (Zhuzhou, Hunan) 2 Southern University of Science and Technology