MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202531010636 A) filed by Tata Steel Limited on February 07, 2025, for “a Tuyere For A Metallurgical Furnace And A Method Of Coating The Tuyere Thereof”.

Inventors include Kaushal Kishore; Ravi Kumar Thakur; Monideepa Mukherjee; Kanwer Singh Arora; Priyanshu Sinha; Radha Raman Abhyuday; Subhashis Kundu; Padma Pal; and Shambhu Nath.

The application for the patent was published on August 14, 2026, under issue no. 33/2026.

Abstract: The present invention discloses a tuyere (10) for a metallurgical furnace and a method of coating the tuyere thereof. The tuyere (10) includes a tuyere body (11) receivable in the metallurgical furnace. The tuyere body (11) is defined with an inlet end (12), an outlet end (13) and a passage extending therebetween. At least a portion of an inner surface (15) or an outer surface (16) of the tuyere body (11) is coated with a first layer (20) of Ni-Cr alloy of first predefined thickness and a second layer (30) of Co-Mo-Cr-Si-C alloy of a second predefined thickness coated on the first layer (20). Fig. 3.

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