MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202511115810 A) filed by Ims Engineering College, Ghaziabad, Uttar Pradesh, on Nov. 23, 2025, for 'convergent divergent nozzle assembly for spray casting of metallic alloys.'
Inventor(s) include Dr. Krishna Vijay Ojha; Dr. Subhash Mishra; Dr. Vivek Pandey; and Dr. Vivek Gupta.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a convergent divergent nozzle assembly for spray casting of metallic alloys to obtain near net shape semi-finished products. The assembly comprises a first body accommodating a melt flow tube and a second body forming an annular high pressure gas passage with a convergent section, a throat, and a divergent section terminating in a gas exit orifice. The gas passage is arranged coaxially around the melt tube so that high velocity gas disintegrates the emerging molten metal stream into micron sized droplets that are deposited on a cooled substrate. The geometry of the convergent and divergent sections and the controlled gas pressure accelerate the gas to near sonic velocity and provide uniform atomisation. The system allows single step production of fine, homogeneous microstructures suitable for subsequent shaping operations such as forging or machining, while reducing process steps and material wastage and improving casting quality and efficiency."
Disclaimer: Curated by HT Syndication.
