| 54 |
Title |
TI |
[DE] Verfahren und Vorrichtung zur Durchlaufvergütung von Bandstahl sowie entsprechend hergestellter Bandstahl |
| 71/73 |
Applicant/owner |
PA |
C.D. Wälzholz Produktionsgesellschaft mbH, 58093 Hagen, DE
|
| 72 |
Inventor |
IN |
Grof, Martin, 58099 Hagen, DE
;
Höfinghoff, Heinz, 58579 Schalksmühle, DE
;
Höfinghoff, Peter, 58579 Schalksmühle, DE
;
Junius, Hans-Toni, Dr.-Ing, 58644 Iserlohn, DE
;
Rademacher, Peter, 58708 Menden, DE
|
| 22/96 |
Application date |
AD |
Aug 20, 2002 |
| 21 |
Application number |
AN |
10238972 |
|
Country of application |
AC |
DE |
|
Publication date |
PUB |
Jul 15, 2004 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
|
| 51 |
IPC main class |
ICM |
C21D 9/52
|
| 51 |
IPC secondary class |
ICS |
C21D 9/573
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
C21D 1/18
C21D 2211/008
C21D 9/52
C21D 9/62
|
|
MCD main class |
MCM |
|
|
MCD secondary class |
MCS |
C21D 1/18
(2006.01)
C21D 9/52
(2006.01)
C21D 9/62
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] The invention relates to a method for the continuous annealing of strip steel (1), whereby the strip steel (1) is heated in a first section (11) of a first heating station (6) with a heating gradient of at least 500 K/s, then heated in a second section (12) of the first heating station (6) with a lower heating gradient to a temperature above the A3 temperature and then cooled in a cooling station (13) with a very high cooling gradient back to ambient temperature. The short-term retention of the strip steel (1) above the A3 temperature allows a complete conversion of the structure with simultaneous solution of the total carbon content, however without complete homogenisation of the carbon to give austenite. For further tempering, the strip steel (1) is heated in a first section (11) of a second heating station (7) with a high heating gradient, than further heated to the annealing temperature in a second section (12) of the second heating station (7) and held for a short period and then recooled to ambient temperature in a cooling station (13) with a very high cooling gradient. The rapid and short-term heating to the annealing temperature prevents the decomposition of the martensite needles which have been formed and thus forms a fine-grain structure in the strip steel (1) with a martensite precipitated with the finest possible needles. A strip steel (1) particularly for the production of edge elements (16) for skis snowboards sliding boards or similar is also disclosed. |
| 56 |
Cited documents identified in the search |
CT |
DE000001758528A
DE000069302332T2
US000005542995A
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
No results
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
C21D 9/52
C21D 9/573
|
