| (19) |
 |
|
(11) |
EP 0 712 939 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
29.05.1996 Bulletin 1996/22 |
| (43) |
Date of publication A2: |
|
22.05.1996 Bulletin 1996/21 |
| (22) |
Date of filing: 23.10.1995 |
|
| (51) |
International Patent Classification (IPC)6: C23C 2/00 |
|
| (84) |
Designated Contracting States: |
|
BE CH DE FR GB IT LI |
| (30) |
Priority: |
24.10.1994 JP 257967/94
|
| (71) |
Applicant: PRAXAIR S.T. TECHNOLOGY, INC. |
|
Danbury,
Connecticut 06810-5113 (US) |
|
| (72) |
Inventors: |
|
- Nitta, Hideo
Saitama, 355 (JP)
- Tsuyuki, Akira
Kisarazu,
Chiba, 292 (JP)
|
| (74) |
Representative: Schwan, Gerhard, Dipl.-Ing. |
|
Elfenstrasse 32
81739 München
81739 München (DE) |
|
| |
|
| (54) |
Pot roll for continuous hot-dip galvanizing |
(57) A Pot roll for continuous hot-dip galvanizing used in a galvanizing bath, characterized
by comprising a Pot roll surface having three spray coating layers composed of a alloy
of high Co ratio or cermet of high ratio of said alloy as the first layer, a cermet
containing a oxide, carbide or boride as the second layer and a ceramic of oxide group
as the third layer.