Production method of low-carbon battery shell steel continuous casting sheet billet

The invention discloses a production method of a low-carbon battery shell steel continuous casting sheet billet. The production method mainly solves the technical problem that the number of large-particle deoxidized products in an existing low-carbon battery shell steel continuous casting sheet billet is large. According to the technical scheme, the production method of the low-carbon battery shell steel continuous casting slab comprises the steps that (1) molten steel meeting the chemical component requirements of the steel is obtained through converter smelting; (2) immediately tapping after converter blowing is finished, and blowing argon at the bottom of a steel ladle in the converter tapping process; (3) molten steel in the steel ladle is conveyed to an RH furnace for refining treatment; and 4) carrying out slab continuous casting on the molten steel refined by the RH furnace to obtain a continuous casting slab, wherein the pulling speed of the continuous casting slab in the continuous casting process is