... positions in the quench tank;2) Check the effect of the rate of flow on cooling performance3) Follow changes in the cooling ... e.g. oils, polymers, water and salt4,Incoming inspection of quenchantsMode of operationA probe containing a thermocouple is heated to the required ... ,960s,1920s-Show temperature/time and temperature/cooling rate curves-Plot curves with date Vmax ,Tvmax ,V300 ,t600 ,t400 and t200 ...