Method for improving completeness of hot-rolled pipeline steel oxidized scale

The invention discloses a method for improving the completeness of hot-rolled pipeline steel oxidized scale. The method comprises the following steps of 1, heating; 2, primary descaling; 3, single-stand rolling, wherein a high-ferrochrome roller is used as a work roller of a rolling mill; 4, rough rolling, wherein during first and secondary rough rolling, descaling is conducted by using rolling mill body water, and the descaling pressure is equal to or higher than 22 MPa; 5, finish rolling, after an intermediate slab is cooled, finish rolling is conducted, the start rolling temperature is controlled to be 980+/-10 DEG C, the final rolling temperature is controlled to be 820+/-10 DEG C, and the final finish rolling pass reduction is equal to or smaller than 15%; 6, fly shearing; 7, cooling,wherein cooling is conducted in a laminar-flow way; 8, straightening and finishing; 9, inspection and warehouse-in. The steel oxidized scale prepared by using the method is high in completeness and high in corrosion resistan