Design of Quenching Media Cooling Performance Testing System
Aiming at the probems of test operation is inconvenient,the detection results of large deviation,lack of data management and other issues of the existing quenching media cooling performance testing system,a high-precision portable quenching media cooling performance testing system is designed.According to the principle of quenching media cooling performance detection,by adopting the surface fitting means,segmented calculation of the temperature function of the detection probe.A portable detector based on STM32,which integrates the functions of high-precision voltage acquisition,cold end temperature compensation and wireless Bluetooth communication,etc.,is designed.A data management system with online data acquisition of quenching media cooling performance and historical data management is developed.Test results show that the system in the range of 0～1 000℃temperature measurement error of±0.2℃.Compared with the traditional quenching media cooling performance testing system,the system has a better experimental repeatability.The system can meet the demand for quenching media cooling performance testing,which is conducive to improving the quenching basic database and promoting the process of heat treatment digitization.
Quenching mediaCooling performanceSTM32K-type thermocoupleCold end compensationSegmented polynomial fitting
NETL
NSTL
万方数据
