The role and working principle of annealing furnace

      The function and working principle of annealing furnace:

      The function of the annealing furnace is to heat the workpiece to a predetermined temperature, hold it for a certain period of time, and then slowly cool the metal heat treatment process.

      The details are as follows:

      1. Improve or eliminate various structural defects and residual stresses caused by steel casting, forging, rolling and welding, and prevent deformation and cracking of the workpiece.

      2. Soften the workpiece for cutting processing. Annealing furnace

      3. Refine the grains and improve the structure to improve the mechanical properties of the workpiece.

      4. Prepare the organization for the final heat treatment (quenching, tempering).

       Working principle of annealing furnace:

       Through the circulation of fans, the temperature distribution in the furnace cavity of the annealing furnace is uniform. The two furnace chambers of the annealing furnace can be operated independently, which improves the annealing efficiency. There are two fans in each furnace cavity, but there is no air filter device. , There is a discrepancy with the actual situation. The temperature distribution in the furnace is uniform through fan circulation, and the microstructure of the film material is reorganized through heat treatment to improve stability and conversion efficiency. Heat the casting to about 950℃, keep it warm for a certain period of time and then cool it appropriately to eliminate the internal stress of steel castings and welded parts. For steel products, the temperature at which austenite begins to form after heating is 100 to 200°C, and the internal stress can be eliminated by cooling in air after heat preservation.