EP 0820529 B1 20000802 - METHOD OF MANUFACTURING HOT-WORKED ELONGATED PRODUCTS, IN PARTICULAR BAR OR PIPE, FROM HIGH-ALLOY OR HYPEREUTECTOID STEEL
Title (en)
METHOD OF MANUFACTURING HOT-WORKED ELONGATED PRODUCTS, IN PARTICULAR BAR OR PIPE, FROM HIGH-ALLOY OR HYPEREUTECTOID STEEL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES WARMGEFERTIGTEN LANGGESTRECKTEN ERZEUGNISSES INSBESONDERE STAB ODER ROHR AUS HOCHLEGIERTEM ODER ÜBEREUTEKTOIDEM STAHL
Title (fr)
PROCEDE DE FABRICATION DE PRODUITS ALLONGES FINIS A CHAUD, NOTAMMENT DU TYPE BARRE OU TUBE, EN ACIER FORTEMENT ALLIE OU HYPEREUTECTOIDE
Publication
Application
Priority
- DE 9600501 W 19960312
- DE 19513314 A 19950403
Abstract (en)
[origin: DE19513314A1] In the method proposed, the length of the selected case-hardening material is heated to the working temperature and, after one or two working stages, is reheated to a temperature below the original working temperature and continuously rolled to its final dimensions in a multi-stand reducing mill and then cooled in still air. The invention is characterized in that, following the initial working stages but before reheating, a uniform temperature distribution is produced over the whole length and thickness of the partly finished product by controlled heating or cooling to a given temperature lying within a particular temperature range.
IPC 1-7
IPC 8 full level
B21B 3/00 (2006.01); C21D 8/06 (2006.01); C21D 8/10 (2006.01); C22C 38/00 (2006.01); C22C 38/18 (2006.01); C21D 6/00 (2006.01)
CPC (source: EP KR US)
C21D 1/32 (2013.01 - EP US); C21D 6/002 (2013.01 - KR); C21D 8/06 (2013.01 - KR); C21D 8/065 (2013.01 - EP US); C21D 8/10 (2013.01 - EP KR US); C22C 38/18 (2013.01 - KR); C21D 6/002 (2013.01 - EP US); C21D 2211/003 (2013.01 - EP KR US)
Designated contracting state (EPC)
DE ES FR IT SE
DOCDB simple family (publication)
US 5958158 A 19990928; AR 001416 A1 19971022; BR 9604830 A 19990105; CA 2217309 A1 19961010; CA 2217309 C 20001121; CZ 304797 A3 19980415; DE 19513314 A1 19961010; DE 19513314 C2 19970703; DE 59605681 D1 20000907; EP 0820529 A1 19980128; EP 0820529 B1 20000802; ES 2149455 T3 20001101; HU P9800702 A2 19980728; HU P9800702 A3 19990830; JP H11503491 A 19990326; KR 19980703575 A 19981105; PL 322598 A1 19980202; SK 134297 A3 19980408; WO 9631628 A1 19961010
DOCDB simple family (application)
US 93013997 A 19971110; AR 33589296 A 19960325; BR 9604830 A 19960312; CA 2217309 A 19960312; CZ 304797 A 19960312; DE 19513314 A 19950403; DE 59605681 T 19960312; DE 9600501 W 19960312; EP 96907260 A 19960312; ES 96907260 T 19960312; HU P9800702 A 19960312; JP 52984596 A 19960312; KR 19970706979 A 19971002; PL 32259896 A 19960312; SK 134297 A 19960312