| 摘要 |
FIELD: manufacture of rolled shaped metallic articles having partially or completely polygonal cross section by continuous casting onto grooved casting wheel and subsequent continuous rolling at least by means of three pairs of rolling rollers having peripheral groove, arranged symmetrically relative to article and mounted alternatively in vertical and horizontal positions. SUBSTANCE: grooves of first pairs of rolling rollers are similar to grooves of rollers used for making rolled shaped articles with round cross section. Last pair of rolling rollers includes grooves restricting respective cross section substantially coinciding with predetermined cross section of final shaped article. Cross section restricted by grooves of last pair of rolling rollers features by curvature radiuses in range 1 - 5 mm in apexes of polygon. Sides of said polygon non-parallel relative to gap between rolling rollers of last pair of rollers have (relative to respective sides of cross section of final rolled shaped article) technological slope whose value is in range 1/2 - 3 degrees. It is possible to make rolled shaped products of aluminum alloy and(or) copper alloy designed for further drawing and(or) broaching. EFFECT: possibility of accurate control of geometry parameters of cross section of rolled article. 15 cl, 5 dwg, 4 tbl |
