How to heat treat stainless steel forgings?

After forging, stainless steel forgings are directly heat treated with waste heat, which closely combines forging and heat treatment, saving a large amount of energy required for reheating in ordinary heat treatment. For example, after forging, stainless steel forgings are directly quenched by waste heat. This forging waste heat quenching is also called high temperature deformation heat treatment, which can make stainless steel forgings obtain good comprehensive mechanical properties.
Forging waste heat quenching refers to the quenching structure of stainless steel forgings that is directly quenched in the quenching medium after forging, to replace the original reheating quenching process. Forging waste heat annealing refers to the slow cooling of stainless steel forgings after forging to replace the original reheating annealing.

Forging waste heat normalizing refers to the air cooling of stainless steel forgings after forging to replace the original reheating and normalizing. Forging residual heat isothermal normalizing refers to stainless steel forgings that are rapidly cooled to isothermal temperature after forging, and then kept warm, instead of reheating isothermal normalizing.

After forging, the stainless steel forgings are directly sent to the uniform temperature heat treatment furnace, and the conventional stainless steel forging heat treatment process is still performed. After the stainless steel forgings are uniformed, the temperature of the stainless steel forgings during quenching, normalizing and isothermal normalizing is the same. This method is called Heat equalization of waste heat. For stainless steel forgings with complex shapes, especially large cross-section changes, using this process can ensure stable heat treatment quality of stainless steel forgings.
Forging waste heat quenching, forging waste heat uniform quenching, forging waste heat normalizing and forging waste heat isothermal normalizing, the grain size of stainless steel forgings is larger than that of conventional heat treatment processes. In order to refine the grains, the stainless steel forgings can be cooled to 600 ℃ ~ 650 ℃, and then the stainless steel forgings are heated to the temperature required for quenching (normalizing) for quenching (normalizing), so that the grains can be refined and reduced The energy consumption of heating stainless steel forgings from room temperature to 600°C~650°C is generally used for stainless steel forgings with high grain size requirements.

On the basis of the reliable quality of raw materials, one of the tasks of forging processing is to obtain the required shape, size and surface condition of the stainless steel forgings to meet the requirements of the processing and use conditions of the parts, and to comply with the requirements of the part drawings.