There is a process on the cold rolling production line called continuous annealing furnace and bell furnace. I wonder what continuous annealing furnaces and bell furnaces are. The handwriting may be wrong. Please give me some advice. The function of continuous annealing furnace and bell furnace is basically the same, which is to heat and anneal the strip steel. I am engaged in cold rolling strip steel. Generally speaking, I think the bell-type furnace is used by private factories, and private enterprises rarely use continuous annealing line because of its high cost and large area. The continuous annealing furnace is divided into horizontal and vertical, and the steel structure of the vertical furnace is tens of meters high ... because the strip is cold-rolled, for example, a 5 mm strip becomes 0. 15- 1 mm after reversible high-speed reciprocating rolling. Then, after green rolling, the yield and elongation of the strip are extremely unstable, which has a great influence on the subsequent process production. Therefore, the bell furnace is a process of heating and then cooling the strip, while continuous annealing is a continuous annealing treatment after heating the strip. According to the requirements of production process, different furnaces need to be used.

Such as tin or chromium plating:

Green belt-pickling-rolling-degreasing-furnace heating (natural cooling)-leveling-rewinding and straightening-tin plating or chromium plating.

Personally, I don't know much about cold rolling. I hope the landlord will adopt my humble opinion.