PROCESS FOR MAKING BLANKS Russian patent published in 2001 - IPC

FIELD: rolled stock production, namely manufacture of rectangular cross section blanks from continuously cast slabs. SUBSTANCE: process comprises steps of simultaneously forming in pass with combined grooves several blanks mutually joined by means of bridges from slab; tilting blanks by 180 degrees, separating them by rolling in the same grooved pass. Blanks are rolled in open box pass whose grooves are formed by means of cutting ridges until thickness of bridges equal to 0.25-0.40 of slab thickness. Blanks are separated at simultaneously reducing them by thickness by (1.5-4.5)%. Process is realized in the same roll grooved pass without distortion of shape of product. EFFECT: simplification of process, enhanced quality of blanks. 1 dwg, 1 tbl, 2 ex