Method for producing ultrathin silicon steel with thickness below 0.15 mm on continuous annealing coating line

The invention discloses a method for producing ultra-thin silicon steel with the thickness of 0.15 mm or below on a continuous annealing coating line. The method comprises the following steps of uncoiling, strip head shearing, welding, cleaning, annealing, coating, drying, cooling and coiling, and production of a continuous annealing coating of the ultra-thin silicon steel with the thickness of 0.15 mm or below can be smoothly completed through the method. The technical problem that uncoiling, welding, shearing and the like are not continuous during production of ultrathin silicon steel with the thickness of 0.15 mm or below is solved, production faults such as off tracking, crumpling, shaking and tearing of strip steel in the production process are effectively avoided, and the smooth operation problem of batch production of the ultrathin silicon steel is solved. And a common continuous annealing coating line also has the production capacity of ultra-thin silicon steel. 本发明公开了一种在连续退火涂层线上生产0.15mm以下厚度的超薄硅钢的方法，所