公开(公告)号：US10801123B2

公开(公告)日：2020-10-13

申请号：US15469663

申请日：2017-03-27

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Zhongfen Ding ,  Robert R. Hebert ,  Weilong Zhang ,  Bart Antonie van Hassel ,  Mark R. Jaworowski ,  Michael A. Kryzman ,  Blair A. Smith ,  Georgios S. Zafiris ,  Promila Bhaatia ,  Mark A. Brege ,  Shaahin Amini ,  Vijay V. Pujar

IPC: C25D11/26 ,  C25D11/30 ,  C25D11/20 ,  C25D11/10 ,  C25D11/08

Abstract: A method of coating a metal article is disclosed that includes immersing a metal article having an exterior anodized layer in a bath containing a chemically active corrosion inhibitor, and applying a voltage to the article during the immersing, the voltage driving the chemically active corrosion inhibitor from the bath into the exterior anodized layer. An article is also disclosed that has a substrate comprising a metal, and a porous anodized layer formed on an exterior surface of the substrate that is infiltrated with a chemically active corrosion inhibitor, the anodized layer having an inward-facing region and an outward-facing region, the anodized layer having a greater concentration of chemically active corrosion inhibitors in the inward-facing region than in the outward-facing region.

公开(公告)号：US20180274121A1

公开(公告)日：2018-09-27

申请号：US15469663

申请日：2017-03-27

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Zhongfen Ding ,  Robert R. Hebert ,  Weilong Zhang ,  Bart Antonie van Hassel ,  Mark R. Jaworowski ,  Michael A. Kryzman ,  Blair A. Smith ,  Georgios S. Zafiris ,  Promila Bhaatia ,  Mark A. Brege ,  Shaahin Amini ,  Vijay V. Pujar

IPC: C25D11/22 ,  C25D11/26 ,  C25D11/30 ,  C25D9/12

CPC classification number: C25D11/30 ,  C25D11/08 ,  C25D11/10 ,  C25D11/20 ,  C25D11/26

Abstract: A method of coating a metal article is disclosed that includes immersing a metal article having an exterior anodized layer in a bath containing a chemically active corrosion inhibitor, and applying a voltage to the article during the immersing, the voltage driving the chemically active corrosion inhibitor from the bath into the exterior anodized layer. An article is also disclosed that has a substrate comprising a metal, and a porous anodized layer formed on an exterior surface of the substrate that is infiltrated with a chemically active corrosion inhibitor, the anodized layer having an inward-facing region and an outward-facing region, the anodized layer having a greater concentration of chemically active corrosion inhibitors in the inward-facing region than in the outward-facing region.