US Patent Issued to Qingyou Han on July 1 for "Process for making a one-piece composite liner for cold chamber die casting application" (Ohio Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,789, issued on July 1, was assigned to Qingyou Han (Stow, Ohio).

"Process for making a one-piece composite liner for cold chamber die casting application" was invented by Qingyou Han (Stow, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process of forming a low cost, erosion, oxidation, and wear resistant one-piece composite liner or insert that can be installed into a shot chamber in a die casting machine is provided. The process utilizes a thin inner layer of refractory metal to serve as the working surfaces of a shot chamber. The thin refractory layer is bonded metallurgically to a thick low cost material to form a one-piece liner thick eno...