Quenching medium and cooling technology

The ideal quenching medium should have the following characteristics: ①Quality type: fast cooling at high temperature stage, slow cooling at low temperature stage. That is, cracks are eliminated and quenching deformation is reduced. ②Environmental protection type: no toxic, harmful smoke or gas volatilization, not easy to burn, the workpiece is easy to clean after quenching, no corrosion to the equipment, no irritation to burn the skin. ③Stable type: The performance of the workpiece is uniform and stable after quenching, and the performance of the medium itself is stable within a certain period of time. ④Economical type: high quality and high price, low energy consumption.

In recent years, the quenching medium has developed very rapidly. The performance of quenching oil has been improved, and the research and application of organic polymer quenching media have achieved unprecedented development.