Excessive convexity, severe wedge, dissymmetric convexity and partial protrusion will result in sticking of sheets during annealing in the bell-typefurnace.
热轧板凸度过大，楔形严重，凸度不对称和有局部高点，均可造成罩式炉退火时产生粘结。
2
A new technology and equipment of annealing and bluing for finished stator and rotor of uncoated cold-rolled electric steel lamination in bell-type hytrogen furnace was introduced.
A new technology and equipment of annealing and bluing for finished stator and rotor of uncoated cold-rolled electric steel lamination in bell-type hydrogen furnace was introduced.