Keywords: strengthening quenching cooling, quenching, cooling, undercooling, austenite, quenching medium, cooling principle, concentration, liquid temperature, stirring,

Basic theoretical research on strengthening quenching cooling

　　Quenching cooling is a very complex process, the transformation mechanism of steel supercooled austenite continuous cooling, the cooling principle of new quenching medium, the concentration of water-soluble quenching medium, the influence of liquid temperature and stirring degree on quenching intensity, the influence of quenching medium cooling characteristics on the quality of quenched workpiece, the relationship between quenching intensity and hardness distribution of quenched workpiece, the research on the optimal internal stress of quenched workpiece and its control method, the determination and evaluation of the cooling capacity of quenching medium, the pollution process of quenching medium and its maintenance, the computer simulation of quenching process and the establishment of mathematical model should be strengthened. These are important for the development of new quenching medium and the improvement and enhancement of the performance of the original quenching medium, it is of great guiding significance to improve the quenching process, reduce the distortion and cracking of the workpiece, and improve the performance and quality of the workpiece.

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