MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641024727 A) filed by Karthikeya Innovative Industrial Materials And Solutions, Eluru, Andhra Pradesh, on March 2, for 'a method for selective reclamation of damaged pig casting machine moulds in direct ferroalloy casting.'
Inventor(s) include Gamini Purna Sai Sree Ganesh; and Addepalli Veera Sreenu.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "A method for selective reclamation of damaged Pig Casting Machine (PCM) moulds (103) used in direct ladle-less ferroalloy casting is disclosed. In such systems, molten ferroalloy from a submerged electric arc furnace (105) flows through a tap hole (104), tapping channel (106), and direct discharge channel (101) into moulds mounted on an endless conveyor (102). Repeated impingement of high-temperature molten metal causes localized through-thickness damage (201), leading to premature mould discard. The method comprises cleaning the damaged region, optionally welding a bottom sealing plate (401, 502, 503), installing anchoring elements (501) including branched (301), V-shaped (302), or Y-shaped (303) anchors, and filling the cavity with either a refractory castable or ECA-based carbon tamping composition. After curing or staged heating, the restored zone withstands direct molten metal exposure. The method enables restoration of large volumetric damage without replacing the mould, extending service life and reducing operational cost in direct PCM ferroalloy casting."
Disclaimer: Curated by HT Syndication.
