The invention discloses a stokehole process for triggering and blocking in-furnace time statistics based on
temperature limit, which comprises the following steps: S1, collecting data of core segregation and
heating temperature of different materials, performing
regression analysis to obtain a regression equation, and screening data of which R is greater than or equal to 0.9 for later use; s2, analyzing the data to obtain the
heating time range of each section of different steel grades and different specifications, and taking a center line as the standard
heating time; s3, in the process temperature range, the corresponding
heating temperature is set as the limited temperature when the segregation index is 1.05; s4, computer logic is edited, and finally the effective in-furnace time of each steel in each section is obtained; and S5, the difference between the standard
heating time of each section of each piece of steel and the effective in-furnace time is obtained, the absolute value of the difference value is smaller than or equal to 3 min, and if the absolute value of the difference value is larger than 3 min, an alarm is given to remind a fireman to
handle abnormity. According to the method, the in-furnace time is redefined, the product performance risk is reduced, and the good structure performance of the wire is guaranteed.