MUMBAI, India, Aug. 24 -- Intellectual Property India has published a patent application (202514082465 A) filed by Fulian Yuzhan Precision Technology Co. , Ltd. on August 30, 2025, for Anodic Oxide Film, Method For Manufacturing The Same, And Metal Workpiece Having The Same.
Inventors include Shuo-Hsi Tang; Jianguo Hu; Yuanqing Luo; Yehua Liu; Wei-Jie Tsai; Bingru Zhou; Mengmei Li; and Qian Gu.
The application for the patent was published on August 21, 2026, under issue no. 34/2026.
Abstract: The present disclosure discloses an anodic oxide film, a method for manufacturing the same, and a metal workpiece having the same. The method comprises: a substrate is subjected to an anodic oxidation to form a porous anodic oxide film; and a corrosion solution is used to etch pore walls of the porous anodic oxide film to produce microstructures, thereby a white anodic oxide film is obtained, wherein the corrosion solution comprised at least one selected from aluminum sulfate and sulfuric acid, and the microstructure comprises at least one selected from microcrack and micropore. The present disclosure improves the white color, stability and uniformity of the anodic oxide film. The method has a simple process and environmentally friendly, and can meet the demands of high performance and sustainable development for the production of the white anodic oxide film.
Disclaimer: Curated by HT Syndication.
