公开(公告)号：EP2215285B1

公开(公告)日：2016-05-25

申请号：EP08853163.7

申请日：2008-11-25

申请人： Henkel AG & Co. KGaA

发明人： SCHÖNHERR, Maximilian ,  WAWRZYNIAK, Jerzy-Tadeusz ,  WIEDEMANN, Eva

IPC分类号： C23C22/36 ,  C25D13/20

CPC分类号： C23C22/361 ,  C25D13/20

公开(公告)号：EP2215285A1

公开(公告)日：2010-08-11

申请号：EP08853163.7

申请日：2008-11-25

申请人： Henkel AG & Co. KGaA

发明人： SCHÖNHERR, Maximilian ,  WAWRZYNIAK, Jerzy-Tadeusz ,  WIEDEMANN, Eva

IPC分类号： C23C22/36

CPC分类号： C23C22/361 ,  C25D13/20

摘要： The present invention relates to a method for the corrosion-protective pretreatment of metal components, which at least partially comprise metal surfaces made of iron, using a chromium-free aqueous treatment solution, which contains fluoro-complexes of zirconium and/or titanium and phosphate ions in a specific ratio range to one another, and a metal component which is pretreated accordingly, and the use thereof for the application of further corrosion-protective coatings and/or lacquer systems (Figure 1). The method is suitable in particular as a pretreatment for electrophoretic painting of metal components, which are provided in the form of non-closed hollow bodies. The object of the present invention is therefore also a method for coating a non-closed metal hollow body, which comprises both the pretreatment using the chromium-free aqueous treatment solution and also subsequent electrophoretic painting, and a metal hollow body which is coated according to the method according to the invention, and the use thereof for the production of radiators.

公开(公告)号：EP1929070A1

公开(公告)日：2008-06-11

申请号：EP06776869.7

申请日：2006-08-16

申请人： Henkel AG & Co. KGaA

发明人： BROUWER, Jan-Willem ,  WAWRZYNIAK, Jerzy-Tadeusz ,  KRÖMER, Jens ,  SCHÖNHERR, Maximilian

IPC分类号： C23C22/18 ,  C23C22/36 ,  C23C22/17 ,  C23C22/16

CPC分类号： C23C22/188 ,  C23C22/16 ,  C23C22/17 ,  C23C22/365

摘要： An acid, aqueous phosphatising solution containing 0.2 to 3 g/l zinc(II) ions, 3 to 50 g/l phosphate ions, calculated as PO43-, 15 to 50 mg/l hydrogen peroxide or an equivalent amount of a hydrogen peroxide-cleaving substance, 0.5 to 1.5 g/l one or more aliphatic hydroxycarboxylic acids with 3-6 C atoms, has a free acid content of maximum one point; in a process for phosphatising metal surfaces made of steel, zinc-coated steel or alloyed zinc-coated steel and/or aluminium, the metal surfaces are brought into contact with this phosphatising solution by spraying or dipping, or by a combination of the same, for a period of 3 seconds to 8 minutes.