EP 0613964 B1 19951108 - Process for facilitating cold forming.
Title (en)
Process for facilitating cold forming.
Title (de)
Verfahren zur Erleichterung der Kaltumformung.
Title (fr)
Procédé facilitant la déformation à froid.
Publication
Application
Priority
DE 4306446 A 19930302
Abstract (en)
[origin: EP0613964A1] In a process for facilitating the non-cutting cold forming of iron materials by application of a phosphate coating, the iron materials are dipped (immersed) into a phosphating solution which is free of elements of the sixth subgroup of the Periodic Table of the Elements, free of nitrogen compounds, is preferably also free of nickel, contains from 5 to 20 g/l of zinc from 1 to 15 g/l of magnesium from 10 to 26 g/l of phosphate (calculated as P2O5) from 1 to 15 g/l of fluoroborate (calculated as BF4) from 1 to 7 g/l of chlorate (calculated as ClO3), preferably also from 5 to 40 g/l of sulphate (calculated as SO4) and in which the weight ratio of Zn : Mg : BF4 is set to a value in the range of 1 : (0.15 to 1) : (0.15 to 1).
IPC 1-7
IPC 8 full level
C23C 22/14 (2006.01); C23C 22/36 (2006.01)
CPC (source: EP KR US)
C23C 22/14 (2013.01 - EP KR US); C23C 22/362 (2013.01 - KR); C23C 22/368 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0613964 A1 19940907; EP 0613964 B1 19951108; AT E130052 T1 19951115; CN 1040779 C 19981118; CN 1093416 A 19941012; DE 4306446 A1 19940908; DE 59400038 D1 19951214; ES 2081224 T3 19960216; JP H06322550 A 19941122; KR 100324862 B1 20020620; KR 940021761 A 19941019; TW 270901 B 19960221; US 5415701 A 19950516; ZA 941457 B 19950904
DOCDB simple family (application)
EP 94200388 A 19940215; AT 94200388 T 19940215; CN 94102150 A 19940228; DE 4306446 A 19930302; DE 59400038 T 19940215; ES 94200388 T 19940215; JP 5664194 A 19940302; KR 19940003802 A 19940228; TW 83101372 A 19940218; US 20498494 A 19940302; ZA 941457 A 19940302