Method for producing high-carbon steel on multi-mode thin slab continuous casting and rolling production line

The invention relates to a method for producing high-carbon steel on a multi-mode thin slab continuous casting and rolling production line, and belongs to the technical field of high-carbon steel. In order to solve the technical problem that in the prior art, hot-rolled products with the specification smaller than 2.0 mm cannot be produced, according to the technical scheme adopted by the invention, technological parameters of multiple links such as continuous casting, rolling and coiling are optimally controlled, a roller hearth type tunnel furnace is additionally arranged between an outlet of a continuous casting machine and rough rolling, and the tunnel furnace comprises a fixed section and a movable section; the preparation method has the advantages that a plate blank offline function is achieved, single-blank, half-headless and full-headless multi-mode rolling can be achieved, the product thickness range is expanded, the hot-rolled steel strip produced by the preparation method can be directly hot-rolled