锻件热模锻余热热处理 Forging hot die forging heat treatment
Forging after the use of heat forging their own direct heat treatment, that is, forging the heat treatment of the forging after the heat treatment forging before reheating forging process, the heat treatment is generally the following three ways.
⑴ forging after the heat are heat treatment. Forging directly into the heat treatment furnace, still according to the conventional heat treatment process, the temperature of different parts of the same forging temperature, can shorten the holding time, this method is called waste heat are heat treatment. For the complex shape, especially for large forgings, the process can ensure that the forging quality is stable.
⑵ direct heat treatment after forging. After forging, the forging waste heat is directly heat treated, and the forging and heat treatment are closely integrated to save a lot of energy wastage caused by the need for reheating of ordinary heat treatment.
⑶ forging after the use of part of the heat for heat treatment. After forging, the forging is cooled to about 600 to 650 ° C, and then the forging is reheated to the desired temperature for heat treatment. This method can be refined to the grain, but also saves the forging from room temperature to 600 ~ 650 ℃ energy consumption, generally applicable to the grain size requirements forging.