| (19) |
 |
|
(11) |
EP 1 541 710 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
02.08.2006 Bulletin 2006/31 |
| (43) |
Date of publication A2: |
|
15.06.2005 Bulletin 2005/24 |
| (22) |
Date of filing: 07.12.2004 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
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 States: |
|
AL BA HR LV MK YU |
| (30) |
Priority: |
12.12.2003 FI 20031821
|
| (71) |
Applicant: Outokumpu Oyj |
|
02200 Espoo (FI) |
|
| (72) |
Inventor: |
|
- Salminen, Aleksi
28800 Pori (FI)
|
| (74) |
Representative: Zipse + Habersack |
|
Wotanstrasse 64
80639 München
80639 München (DE) |
|
| |
|
| (54) |
Method for coating tubes |
(57) The invention relates to a method for coating the inner surface of a tube made of
copper or copper alloy by a tin layer, according to which method the tin layer is
formed by chemical tin coating. The coating of the inner tube surface is carried out
in one coating step so that the tin layer is formed as the coating solution circulates
on the inner tube surface