EP 1386020 A2 20040204 - METHOD FOR APPLYING A PHOSPHATE COATING AND USE OF METAL PARTS COATED IN THIS MANNER

Title (en)

METHOD FOR APPLYING A PHOSPHATE COATING AND USE OF METAL PARTS COATED IN THIS MANNER

Title (de)

VERFAHREN ZUM AUFBRINGEN EINES PHOSPHATÜBERZUGES UND VERWENDUNG DER DERART PHOSPHATIERTEN METALLTEILE

Title (fr)

PROCEDE D'APPLICATION D'UN REVETEMENT PHOSPHATE ET UTILISATION DES ELEMENTS METALLIQUES AINSI PHOSPHATES

Publication

EP 1386020 A2 20040204 (DE)

Application

EP 02702388 A 20020302

Priority

DE 10110833 A 20010306
EP 0202270 W 20020302

Abstract (en)

[origin: WO02070781A2] The invention relates to a method for applying a phosphate coating to metallic surfaces by wetting said surfaces with an aqueous acidic phosphatizing solution. Said method is characterized in that the phosphatizing solution contains: from 0.2 up to less than 10 g/l zinc ions, 0.5 to 25 g/l manganese ions and 2 to 300 g/l phosphate ions, calculated as P2O5. In said method, no copper or nickel is added to the phosphatizing solution. The metal parts that have been pre-phosphatized in this manner are then shaped, bonded to other metal parts, welded to other metal parts and/or phosphatized again and optionally are then coated with a coating containing at least one polymer, or with at least one paint layer.

IPC 1-7

C23C 22/18; C23C 22/36; C23C 22/73

IPC 8 full level

B05D 3/10 (2006.01); C23C 22/12 (2006.01); C23C 22/18 (2006.01); C23C 22/20 (2006.01); C23C 22/22 (2006.01); C23C 22/36 (2006.01); C23C 22/42 (2006.01); C23C 22/73 (2006.01)

CPC (source: EP US)

C23C 22/182 (2013.01 - EP US); C23C 22/364 (2013.01 - EP US); C23C 22/73 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02070781 A2 20020912; WO 02070781 A3 20031113; CA 2440127 A1 20020912; DE 10110833 A1 20020919; DE 10110833 B4 20050324; EP 1386020 A2 20040204; JP 2005501173 A 20050113; US 2004065389 A1 20040408

DOCDB simple family (application)

EP 0202270 W 20020302; CA 2440127 A 20020302; DE 10110833 A 20010306; EP 02702388 A 20020302; JP 2002569483 A 20020302; US 46798503 A 20031027