The two chambers of annealing furnace can operate independently, which improves the annealing efficiency.
There are two fans in each chamber, but there is no air filter, which is different from the actual situation.
The temperature distribution in the furnace is uniform by fan circulation, and the microstructure of the film material is reconstructed by heat treatment to improve the stability and conversion efficiency.
The internal stress of steel castings and weldments can be eliminated by heating the castings to 950 ℃ and cooling them properly after holding for a certain time.
For iron and steel products, when austenite begins to form after heating, the internal stress can be eliminated by cooling in air after heat preservation.
