公开(公告)号：US20200347490A1

公开(公告)日：2020-11-05

申请号：US16552152

申请日：2019-08-27

Applicant: CITIC Dicastal CO., LTD.

Inventor： Junfu LI ,  Zaide Wang ,  Shengchao Zhang ,  Peng Han ,  Shuai Li ,  Huanming Ma ,  Mengnan Ma

IPC: C23C14/02 ,  C23C14/16 ,  C23C14/35 ,  C23C14/58 ,  B05D1/12

Abstract: The disclosure provides a metal surface protective layer and a preparation method thereof. The metal surface protective layer comprises an organic medium layer, a metal coating layer and a transparent powder layer from inside to outside, wherein the organic medium layer is formed by spraying organic medium powder onto the surface of metal to be treated, the metal coating layer is formed by performing magnetron sputtering PVD plating on the organic medium layer, the organic medium layer is subjected to surface activation and cleaning treatment before the magnetron sputtering PVD plating, and the transparent powder layer is formed by spraying transparent powder onto the metal coating layer.