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Publication No: IN202411025006 [India] Application No: IN202411025006
Title: Advanced zinc alloy coating and a process there of
Publication Date: 31-10-2025 File Date: 27-03-2024
Inventor(s): Walunj Mahesh Gulab; Himangshu Bapari
IPC Classification: C23C2/06, C22C18/00, B32B15/01, C22C18/04, C25D3/56
Abstract:
The present invention discloses a hot dip Zn-Co-Mn-Ti functional coating composed of mainly three layers on substrate of steel surface having excellent scratch  resistance, corrosion resistance, super hydrophobicity along with colorized surface appearance of different types of shades. Microstructural evolution of the constituent  phases in the hot dip zinc alloy coating is mainly attributed to the composition of hot dip bath containing of major alloying components Zn-Co-Mn-Ti along with minor  alloying components, preferentially at least one or combination of Sr, Mg, Al, Cr. The transparent secondary coating of nano-hybrid polyurethane or epoxy resin-based  applied on the colorized surface of hot-dip Zn-Co-Mn-Ti alloy coating by dipping, spraying or brushing method in order to make the corrosion resistance and super- hydrophobic surface along with its the prolong colour stability to fading in both indoor and outdoor atmospheric exposure.
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