Thermal flow visualization in cooling evaluation of PAG quechants by SUS-304 probe
In this research, the formation and movement of bubbles in boiling film during quenching process was investigated with high-speed video camera and PIV technology as means of visualization method. Cooling curves of surface temperature during quenching of SUS-304 cylinder were measured and the heat transfer coefficients between quenchant and quenching parts were identified. The evaluation of the cooling ability of the coolant used for the quenching technology related to the quality control in the machine part. As for this paper, the cooling capacity of the PAG quenchants(polymer solution) was evaluated. In addition, the heat transfer behavior in quenching process is clarified more than the making of generation and the destruction of the thermal flow and destruction of the steam film by using the PIV method of visualization. Effect of mechanical stirring of quenchant on steam film and heat transfer was studied.
Quenching Heat transformation Cooling curves Polymer solution
Y. Honnma H. Yokota D.Y. Ju
Department of Material Science and Engineering, Saitama Institute of Technology, Fusaiji 1690, Fukay Deparment of Lubricants Research Central Technical Research Laboratory, Nippon Oil Corporation , Tok
国际会议
北京
英文
888-892
2012-10-23（万方平台首次上网日期，不代表论文的发表时间）