METHOD FOR MONITORING MOLD COOLING DUCT

A method for monitoring a mold cooling duct (2), relating to the technical field of molds, and comprising the following steps: S1. introducing a cooling liquid of a specific pressure into an inlet (3) of a mold cooling duct (2) to be monitored; S2. acquiring a measured flow value, within a specified time, of the cooling liquid at an outlet (4) of the mold cooling duct (2) to be monitored; S3. repeating said steps S1 and S2 at least once, so as to obtain several measured flow values, and using an averaged value of the measured flow values as a measured flow value; and S4. determining, by comparing the monitored flow value with a standard flow value, whether the mold cooling duct (2) to be monitored is qualified. In this invention, after the cooling liquid of a set pressure is introduced into a mold cooling duct (2) to be monitored, several measured flow values within a certain time are acquired, an averaged value of the measured flow values is used as a monitored flow value, and the monitored flow value is com