Measuring method for thermal conductivity of metal at high temperature
1 Scope
This standard specifies the measuring principle, specimen requirements, measuring devices and instruments, measuring procedures, data processing and measuring results, measuring records and reports, etc. for measuring the thermal conductivity of metal at high temperature with direct energizing longitudinal heat flow method.
This standard is applicable to the measurement of thermal conductivity of metal or alloy at the temperature of 80℃~900℃ without the effect of phase-transition temperature.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 1220 Stainless steel bars
GB/T 2614 Nickel-Chromium/Nickel-Silicon thermocouple wires
GB/T 8170 Rules for rounding off of numberical values
GB/T 9971 Pure iron raw material
3 Measuring principles
3.1 The schematic diagram of measuring method is shown in Figure 1.
1——Thermal resistant furnace
Foreword i
1 Scope
2 Normative references
3 Measurement principles
4 Specimen requirements
5 Measuring devices and instruments
6 Measuring procedures
7 Data processing and measuring results
8 Measuring records and reports
Annex A (Informative) Calibration of measuring devices
