| 摘要 |
A method of controlling the cooling of a solidified metal strand issuing from a continuous or semi-continuous DC metal casting apparatus by directing a flow of coolant onto said strand, characterized in that a quenchant property of the coolant is intermittently measured by intermittently removing a sample of the coolant from the coolant flow, allowing the sample to become stagnant, heating a probe, immersing the probe into the sample, monitoring the temperature of the immersed probe, determining a quenching property of the sample from the monitored temperature, comparing the quenching property so determined to a predetermined target value, and, based on said comparing step, modifying a coolant flow property selected from the rate of flow of coolant, a pulsation rate when the coolant is applied as a pulsating flow, impingement angle and gas content, to achieve a desired cooling effect. <??>Apparatus for performing such a method is also provided. <IMAGE> |
