Several ways of forging waste heat treatment technology
Views: 1 Author: Site Editor Publish Time: 2016-07-21 Origin: Site
The so-called residual forging heat processing refers to the heat treatment deformation at high temperature is embryo of the workpiece material into a furnace heated to forging temperature and after heat preservation, austenite transformation occurred in the workpiece blank, then generates deformation during the forging process, final forging after the end, pre cooling and isothermal temperature we need to according to the different material, and then select corresponding cooling method, we need the structure and mechanical properties.
The following are some common methods of waste heat treatment:
1. The residual forging heat quenching deformation occurred in the forging process, end forging, pre cooling and isothermal to our desired temperature cooling mode by water or oil rapid cooling according to the requirements of different materials, quenching martensite organization this to get is quenching.
2. Forging heat quenching and tempering: in heating furnace into the need of processing blank until the temperature to forging temperature, heat preservation after forging, finish forging after, pre cooling and isothermal quenching temperature we need to according to the different material and quenching, get a kind of organization is dominated by the quenched martensite. And then high temperature tempering, so that the mechanical properties to meet our requirements. The tensile strength, yield strength, impact fatigue resistance, ductility and fracture toughness of the quenched and tempered forging will be increased than that of the conventional quenching and tempering, and the temper brittleness of the alloy structural steels can be reduced and the cost is reduced.
3. Forging waste heat normalizing: deformation occurred in the forging process, end forging, pre cooling and isothermal temperature we need to choose cooling in the air and get organized to cable's body is waste heat normalizing.
4. Forging residual heat annealing: product deformation occurred in the forging process, end forging, pre cooling and isothermal temperature we need to choose cooling in a furnace or slow cooling pit, in the ferrite matrix distribution of flake and spheroidal carbide based organization is residual heat annealing.
These are several common forging waste heat treatment process in several ways, hoping to help to everyone.