Molten metal rotor with hardened blade tips
AssigneeMolten Metal Equipment Innovations, LLC
InventorPaul V. Cooper
Life of this patent
Estimating the term…
Abstract
Embodiments of the invention are directed to a rotor for use in molten metal and devices including the rotor. The rotor has a rotor body and blades, wherein each blade includes a tip that is at least twice as hard as the rotor body.
Claims20
A rotor for use in molten metal, the rotor comprising (a) a body portion, (b) a plurality of rotor blades, wherein each rotor blade has (i) a leading edge on a leading surface, wherein the leading surface has a height, (ii) a trailing edge, and (iv) a top surface portion between the leading edge and the trailing edge, and (c) a hardened tip comprising material at least twice as hard as the body portion, wherein the hardened tip forms 15%-50% of the top surface portion and 15%-75% of the leading edge.
Dependencies are inferred from the claim text.