초록 ▼

Metal strip may be directly cast by deposit of a melt layer onto a chill surface. Quality of both the upper and lower surfaces of strip case in this manner may be substantially improved according to the invention by casting on a chill roll having fine, circumferential, surface grooving of a particul

Metal strip may be directly cast by deposit of a melt layer onto a chill surface. Quality of both the upper and lower surfaces of strip case in this manner may be substantially improved according to the invention by casting on a chill roll having fine, circumferential, surface grooving of a particular geometry.

대표청구항 ▼

The method for casting commercial quality metal sheet of thickness less than about 10 millimeters directly from the melt comprising grooving the outer cylindrical surface of a chill wheel with axially-spaced, substantially circumferentially extending grooves to produce a casting surface with a groov

The method for casting commercial quality metal sheet of thickness less than about 10 millimeters directly from the melt comprising grooving the outer cylindrical surface of a chill wheel with axially-spaced, substantially circumferentially extending grooves to produce a casting surface with a groove density of at least about 8 grooves per centimeter, substantially cylindrical flat land regions between adjacent grooves and generally circumferential edges at the intersections of each land region with the adjacent grooves, rotating the chill wheel and passing the grooved outer cylindrical surface through a melt pool to extract a melt layer onto the grooved outer surface wherein the upper surface of the melt layer directly contacts the land regions and substantially spans the groove between land regions and wherein the upper surface of the melt layer is unconfirmed and directly exposed to the atmosphere, and withdrawing heat from the melt layer through the grooved surface to progressively solidify the melt layer from the grooved surface to the melt layer upper surface.