MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641024726 A) filed by Karthikeya Innovative Industrial Materials And Solutions, Eluru, Andhra Pradesh, on March 2, for 'refractory coating for steel moulds for direct pcm 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 refractory coating composition for PCM moulds (103) mounted on an endless conveyor (102) in direct Pig Casting Machine systems is disclosed. Molten ferroalloy from a submerged electric arc furnace (105) flows through a tap hole (104) and discharge channel (101, 106) into coated moulds. Conventional lime coatings suffer through-thickness peeling (201) under direct impingement. The present composition comprises 0-40 wt% kaolinite and a dual binder system of 0-15 wt% bentonite and 0-15 wt% molasses in inverse proportion, with water as balance. Applied at 0.5-1.0 mm thickness to heated moulds, the coating forms a high-strength film exhibiting H-grade hardness at 1000 g load (301) per ASTM D3363, significantly exceeding lime coatings (302). The kaolinite provides refractoriness and undergoes controlled dehydroxylation-induced collapse after casting, enabling clean release while minimizing ferroalloy contamination and extending mould life."
Disclaimer: Curated by HT Syndication.
