公开(公告)号：US20240060187A1

公开(公告)日：2024-02-22

申请号：US18386772

申请日：2023-11-03

Applicant: ARCONIC TECHNOLOGIES LLC

Inventor： Michael Bull ,  Theresa Elizabeth MacFarlane

IPC: C23C22/66 ,  C23F1/20 ,  C23C22/76 ,  B41N1/08 ,  B05D3/10 ,  C23C22/78 ,  C23F11/167 ,  C23C22/56 ,  C09D5/08 ,  C23C22/73 ,  C09D5/12

CPC classification number: C23C22/66 ,  C23F1/20 ,  C23C22/76 ,  B41N1/083 ,  B05D3/102 ,  C23C22/78 ,  C23F11/167 ,  C23C22/56 ,  C09D5/08 ,  C23C22/73 ,  C09D5/12

Abstract: Described herein is a continuous coil pretreatment process used to treat the surface of an aluminum alloy sheet or coil for subsequent deposition of an acidic organophosphorus compound. The process can include applying a cleaner to a surface of an aluminum sheet or a coil; etching the surface of the aluminum sheet or the coil with an acidic solution; rinsing the surface of the aluminum sheet or the coil with deionized water; applying to the surface of the aluminum sheet or the coil a solution of an acidic organophosphorus compound; rinsing the surface of the aluminum sheet or the coil with deionized water; and drying the surface of the aluminum sheet or the coil.