Forging temperature control method for 35CrNi3Mo die cast ingot precision forging machine

The invention discloses a forging temperature control method for a 35PCrNi3Mo die cast ingot precision forging machine, and belongs to the field of material forming. The improved heating temperature, cooling and forging technology is adopted to solve the problem that segregation lines appear in the fracture structure of the 35CrNi3Mo gun steel forge piece. The heating temperature of the 35CrNi3Mo die casting steel ingot is 1210-1230 DEG C, heat preservation is carried out according to 0.6 h/100 mm when the temperature is reached, the longest retention time after heat preservation is smaller than or equal to 2 h/100 mm, and the aim of dissolving BN and CrN precipitates separated out by solidification of the die casting steel ingot is achieved. And the die casting steel ingot is taken out after being heated and subjected to heat preservation and cooled in air, and forging is started on a precision forging machine after the air cooling time meets the requirement. The novel heating, forging and post-forging cooli