Die welding: 635±14°C/180 minutes, heating up with the furnace, loading and unloading temperature ≤425°C, heating rate ≤100°C/h, cooling rate no more than 190°C/h, out of furnace air cooling
Mold welding: 635±14 degrees C/180 minutes, with the furnace heating up, the installed temperature ≤425 degrees C, the heating rate ≤100 degrees C/h, the cooling rate must not be greater than 190 degrees C/h, out of the air cold