A, summary:
The thermal conductivity of the material is the physical properties of the material hot an important parameter index. The machines use the hot plate method, meet the research department materials testing for materials coefficient of thermal conductivity of high precision testing requirements. Instrument reference standard GB/T3399 "plastic coefficient of thermal conductivity test methods, the hot plate law, GB/T3139-2005 (fiber reinforced plastic coefficient of thermal conductivity test method) (FRP coefficient of thermal conductivity test method), GB / 10294 (adiabatic material thermal resistance and steady-state related properties determination of protection the hot plate method), etc. The main test plastic, glass, fiber, foam, powdered materials, etc. Widely used in large and medium-sized college, scientific research units, quality control and production enterprise and other departments.
This instrument is in the original DRH-Ⅱ improvement optimization based on, and a higher degree of automation, more stable performance.
The main technical performance
1, the thermal conductivity range: 0.02 ~ 2 w/m • k
2, testing precision: more than plus or minus 3%
3, hot surface temperature range: 95 ℃, room temperature ~ 0.01 ℃ resolution.
4, grim temperature range: 30 ℃, room temperature ~ 0.01 ℃, the resolution of semiconductor refrigeration.
5, power supply: 220 V / 50 HZ ac; Power more than 1 KW.
6, and measured hot power: voltage 0-36 V, arguing 0.01 V; Current 0-3 A, 0.01 A resolution.
7, computer automatic test, and realize the data printing output.
8, sample size requirement: 200 x 200 x (5-20) (mm)