Method for predicting quenching temperature field and organization field through acoustic signals and medium temperature

• Main Authors: CHU YUANZHAO, GE DENGYU, WANG RUOCHEN, WANG HAO, ZHUANG ZHU, LIANG KEPENG
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2021
• Subjects: CALCULATING; CHEMISTRY; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention provides a method for predicting a quenching temperature field and organization field through acoustic signals and medium temperature. The method comprises the following steps of: 1) machining a material the same as a quenching workpiece into a cylindrical sample, installing a plurality of thermal resistors in an organic glass quenching tank, and numbering the thermal resistors, andusing quenching signal acquisition software based on labview to collect and record data; 2) processing the collected data by using programming software, distinguishing different stages of quenching boiling, calculating heat exchange coefficients of different positions of the sample, and establishing a relationship between the acoustic signals and the heat exchange coefficients; 3) obtaining thermodynamic parameters of the material by using software calculation or actual measurement, and establishing a material model required by finite element simulation; and 4) in the production process, recording temperature and soun