PURPOSE:To enable foreseeing of breakout by detecting the temp. change of the thermocouples embedded above and below in a pair into the wall surface of a casting mold, checking the time transition thereof and the detecting sequence within the specified time and deciding burn-on in accordance with the same. CONSTITUTION:Thermocouples A1, A2 are embedded above and below in a pair into at least one wall surface of a casting mold 2 used in a continuous casting plant and the change of the respective temps. of the thermocouples A1, A2 with time is detected. The generation of burn-on to the inside surface of the casting mold is decided when the temp. abnormality C in which the deviation and change rate of the temp. are equal or resemble to those of the thermocouple A1 is detected with the lower thermocouple A2 upon lapse of the prescribed time t1 after the temp. abnormality B is detected with the upper thermocouple A1. The foreseeing of the breakout is thus made possible and the time allowance in the corresponding operation is obtd.
展开▼
