EP 0128734 B1 19870415 - METHOD FOR COOLING A STEEL STRIP IN A CONTINUOUS-ANNEALING FURNACE
Title (en)
METHOD FOR COOLING A STEEL STRIP IN A CONTINUOUS-ANNEALING FURNACE
Publication
Application
Priority
- JP 10461783 A 19830611
- JP 23060283 A 19831208
Abstract (en)
[origin: EP0128734A2] The present invention relates to a method for cooling a steel strip (1) in a continuous-annealig furnace. Conventionally, the steel strip (1) is cooled by a water medium and, thus, oxidation is inevitable. Recently developed roll cooling methods can prevent oxidation but are disadvantageous in that the steel strip (1) is nonuniformly cooled as seen in its short width direction. The present invention attains uniform cooling by means of feedback control and feedback-feedforward control, in which the blowing width of the gas-jet cooler (21, 53) is controlled by detecting the sheet temperature distribution with a thermometer(s) (24, 55, 60).
IPC 1-7
IPC 8 full level
C21D 9/573 (2006.01)
CPC (source: EP)
C21D 9/573 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT LU NL
DOCDB simple family (publication)
EP 0128734 A2 19841219; EP 0128734 A3 19850814; EP 0128734 B1 19870415; AU 2911884 A 19841213; AU 548769 B2 19860102; BR 8402816 A 19850521; CA 1224122 A 19870714; DE 3463162 D1 19870521; ES 533246 A0 19850401; ES 8504262 A1 19850401
DOCDB simple family (application)
EP 84303788 A 19840605; AU 2911884 A 19840606; BR 8402816 A 19840608; CA 456250 A 19840608; DE 3463162 T 19840605; ES 533246 A 19840608