Bell Annealer brings in excellent temperature uniformity, consistent quality, and good production rates. Bell Furnace is suitable for black, bright, and spheroid annealing of steel coils, non-ferrous strips, wires, and general heat treatment processes up to 1100°C. Bright annealing of cold-rolled steel strip coils and heat treatment of medium and thick hot-rolled plate, long products, and wire coils are done using a bell-type furnace.
The type of furnace is usually rectangular or cylindrical form, single or multi-stack gas or electrically heated. Continuous purging of ammonia is deployed throughout the annealing cycle to avoid decarburizing. An Overhead crane is used to load the base and move the equipment. Coils are tilted to the right position and placed on the annealing base.
