公开(公告)号：US09879347B2

公开(公告)日：2018-01-30

申请号：US14377849

申请日：2013-02-11

Applicant: MECAPROTEC INDUSTRIES

Inventor： Pierre Bares ,  Cedric Stephan ,  Celine Gazeau

IPC: C23C22/83 ,  C23C22/56 ,  C23C22/34 ,  C25D11/18 ,  C25D11/04 ,  C25D11/30 ,  C23C22/57 ,  C23G1/00 ,  C23C22/00 ,  C25D11/24

CPC classification number: C23C22/56 ,  C23C22/34 ,  C23C22/57 ,  C23C22/83 ,  C23C2222/10 ,  C23G1/00 ,  C25D11/04 ,  C25D11/18 ,  C25D11/246 ,  C25D11/30

Abstract: A method for surface treatment of a part made of aluminum, magnesium, or one of the alloys thereof, to protect the part from corrosion. The method comprises consecutively immersing the part in a first aqueous bath containing a corrosion-inhibiting metal salt and an oxidizing compound, and a second aqueous bath containing an oxidizing compound and a corrosion-inhibiting rare-earth salt. The method can be carried out for the chemical conversion of aluminum or the alloys thereof, and of magnesium or the alloys thereof, on parts that have not been previously treated, or after anodizing the part to seal the anodic layer.

公开(公告)号：US09879355B2

公开(公告)日：2018-01-30

申请号：US14377503

申请日：2013-02-11

Applicant: MECAPROTEC INDUSTRIES

Inventor： Pierre Bares ,  Celine Gazeau ,  Cedric Stephan ,  David Pedelmas ,  Claude Rossignol ,  Sylvain Bruet ,  Olivier Brucelle ,  Paul Dedieu ,  Philippe Combes ,  Laurent Arurault ,  Viviane Turq ,  Jean-Jacques Rousse ,  Kevin Klepman

IPC: C25D11/08 ,  C25D11/02 ,  C25D11/16 ,  C25D11/24 ,  C25D11/38

CPC classification number: C25D11/024 ,  C25D11/08 ,  C25D11/16 ,  C25D11/246 ,  C25D11/38

Abstract: A method for anodizing a part made of aluminum or an aluminum alloy by immersing the part in an aqueous bath essentially comprising sulfuric acid at a concentration of 150 to 250 g/L and at a temperature of 5 to 25° C. A DC voltage according to a voltage profile comprising a voltage increased at a rate of 1 to 32 V/min is applied to the part. The voltage is maintained at a plateau voltage value of 12 to 20 V for a duration sufficient for obtaining, at the surface of the part, an anode layer having a thickness of 3 to 7 μm and/or a layer weight of 20 to 150 mg/dm2.

公开(公告)号：US20150020925A1

公开(公告)日：2015-01-22

申请号：US14377849

申请日：2013-02-11

Applicant: MECAPROTEC INDUSTRIES

Inventor： Pierre Bares ,  Cedric Stephan ,  Celine Gazeau

IPC: C23C22/56 ,  C23C22/57

CPC classification number: C23C22/56 ,  C23C22/34 ,  C23C22/57 ,  C23C22/83 ,  C23C2222/10 ,  C23G1/00 ,  C25D11/04 ,  C25D11/18 ,  C25D11/246 ,  C25D11/30

Abstract: A method for surface treatment of a part made of aluminum, magnesium, or one of the alloys thereof, to protect the part from corrosion. The method comprises consecutively immersing the part in a first aqueous bath containing a corrosion-inhibiting metal salt and an oxidizing compound, and a second aqueous bath containing an oxidizing compound and a corrosion-inhibiting rare-earth salt. The method can be carried out for the chemical conversion of aluminum or the alloys thereof, and of magnesium or the alloys thereof, on parts that have not been previously treated, or after anodizing the part to seal the anodic layer.

Abstract translation: 用于表面处理由铝，镁或其合金之一制成的部件的方法，以保护部件免受腐蚀。 该方法包括将部件连续浸渍在含有腐蚀抑制金属盐和氧化性化合物的第一水浴中，以及含有氧化性化合物和腐蚀抑制性稀土盐的第二水浴。 该方法可以进行铝或其合金以及镁或其合金，未经预先处理的部件或阳极氧化部件以密封阳极层的化学转化。