EP 1571235 A3 20080319 - Tinning method for copper tubular pieces
Title (en)
Tinning method for copper tubular pieces
Title (de)
Verfahren zur Zinnplattierung von Kupferrohren
Title (fr)
Procédé d'étamage de pièces tubulaires en cuivre
Publication
Application
Priority
FR 0402317 A 20040305
Abstract (en)
[origin: EP1571235A2] The procedure consists of applying an aqueous dispersion of solid tin particles, especially shot, and an agent that partly dissolves the tin, to the surface of a component made from copper or copper alloy, and typically a pipe. The dispersion is applied at a temperature of between 60 - 135 degrees C to form stannic ions that leave a deposit of tin by ion exchange with the copper surface. The dissolving agent is a salt that gives a pH of 3 - 5, e.g. potassium bitartrate, and the aqueous dispersion is circulated for sufficient time to create a layer of tin at least 0.3 mcm and typically 0.5 - 1 mcm thick.
IPC 8 full level
C23C 18/48 (2006.01); C23C 18/54 (2006.01)
CPC (source: EP)
C23C 18/48 (2013.01); C23C 18/54 (2013.01)
Citation (search report)
- [XY] FR 1056203 A 19540225 - TAINTON COMPANY
- [DY] US 6041828 A 20000328 - BAUKLOH ACHIM [DE], et al
- [Y] US 2434855 A 19480120 - TERAN KOSTERLITZKY JOSE L
- [Y] US 2072229 A 19370302 - LOUIE WAITMAN
- [A] PATENT ABSTRACTS OF JAPAN vol. 0050, no. 71 (C - 054) 13 May 1981 (1981-05-13)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR LV MK YU
DOCDB simple family (publication)
EP 1571235 A2 20050907; EP 1571235 A3 20080319; EP 1571235 B1 20190717; FR 2867198 A1 20050909; FR 2867198 B1 20070914
DOCDB simple family (application)
EP 05003348 A 20050217; FR 0402317 A 20040305