Highly corrosion-resistant zinc white copper alloy and method for producing the same
By adding tin, neodymium, zirconium, and boron elements to zinc-copper alloys and using specific preparation methods, a fine and uniform equiaxed crystal structure is formed, which solves the corrosion resistance problem of zinc-copper alloys in complex corrosive media and improves the corrosion resistance and composition yield of the alloy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGXI KAIQIANG NEW MATERIALS CO LTD
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing zinc-copper alloys are prone to localized dezincification corrosion in complex corrosive media. During the smelting process, easily volatile elements are burned off, refractory active elements segregate, and grains become coarse, resulting in decreased corrosion resistance and uneven microstructure.
The preparation method of high corrosion-resistant zinc-copper alloy involves adding tin, neodymium, zirconium, and boron elements to a copper-nickel-zinc matrix, combined with a stepped cooling process, batch deep pressing operation, covering agent, and argon purging, to form a fine and uniform equiaxed crystal structure, inhibit grain growth, and remove impurities inside the melt.
It improves the overall corrosion resistance and composition yield of the alloy, reduces intergranular corrosion paths, and ensures the internal density and chemical stability of the cast slab.
Smart Images
Figure CN122406031A_ABST