Method and apparatus for controlling the heat transfer of liquid coolant in continuous casting.

摘要

A method for continuously monitoring and/or controlling the cooling capacity of a liquid coolant (15) containing gas bubbles. The method comprising the steps of: (a) measuring the size and number density of the gas bubbles in the liquid coolant (15) by use of a sensor means (46) to infer a heat transfer characteristic of the liquid coolant (15); and (b) varying the amount of gas that is being mixed with the liquid coolant (15) so that the inferred heat transfer characteristic is within a predetermined range.