公开(公告)号：EP3865608A1

公开(公告)日：2021-08-18

申请号：EP18830492.7

申请日：2018-10-10

申请人： MAPSA S. COOP.

发明人： DIAZ FUENTES, Mario ,  VARA SALAZAR, Gemma, Andrea ,  ORTIZ CAMINO, Olaia ,  DIEZ SILANES, Jose, Antonio ,  SOTES DIAZ, David ,  MUNARRIZ SALAMANCA, Ruben ,  LOPEZ ANDRES, Alberto

IPC分类号： C25D11/02 ,  C25D11/04 ,  C25D11/08 ,  C25D11/16 ,  C25D11/18 ,  C25D11/22 ,  C25D11/24 ,  B60B21/00 ,  B60B3/06

摘要： A method for the surface treatment of a piece of aluminum alloy, comprising on its surface pores of a size of up to 500 µm, comprising an anodization step of at least a part of the surface of the piece, an aluminum oxide layer (23) being generated on said part of the surface, the anodization being carried out by current pulses, and the aluminum oxide layer (23) comprising pores (24) of a size between 25 and 500 nm. The invention also relates to a piece (20) of anodized aluminum alloy comprising an aluminum oxide layer (23), said aluminum oxide layer (23) comprising on its surface pores (24) of a size between 25 and 500 nm.