EP 0795616 B1 20011128 - Process and apparatus for continuously heat treating metal strip in different atmospheres
Title (en)
Process and apparatus for continuously heat treating metal strip in different atmospheres
Title (de)
Durchlaufglühverfahren von Metallband in verschiedenen Schutzgasen und Vorrichtung
Title (fr)
Procédé et installation de traitement thermique en continu de bandes métalliques dans des atmosphères de nature différente
Publication
Application
Priority
FR 9603140 A 19960313
Abstract (en)
[origin: EP0795616A1] The continuous thermal treatment of metal strip travelling through a furnace, thermally insulated and in a protective atmosphere. The furnace is made up of at least one section for heating (1), for soaking (2) and for cooling (3). The strip is guided by rollers (6, 6', 6", 7, 7', 72) arranged in the lower and upper parts of these sections of the furnace, in order to provide strands. The strip passes across at least one insulating device (14) partially or totally positioned at the heart of at least one section or between two sections, in order to assure different thermal transfer properties to the strip with respect to at least one other contiguous section, incorporating a different atmosphere, by acting on the composition of the atmosphere made up of a mixture of gas of which the hydrogen or helium content exceeds 5% and more particularly 15%, in order to allow the differentiation of the thermo-mechanical properties of the atmosphere.
IPC 1-7
IPC 8 full level
C21D 1/74 (2006.01); C21D 1/76 (2006.01); C21D 9/56 (2006.01); C21D 1/613 (2006.01); C21D 9/573 (2006.01)
CPC (source: EP US)
C21D 9/561 (2013.01 - EP US); C21D 1/613 (2013.01 - EP US); C21D 1/76 (2013.01 - EP US); C21D 9/573 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE ES FI GB IT LU NL SE
DOCDB simple family (publication)
EP 0795616 A1 19970917; EP 0795616 B1 20011128; AT E209701 T1 20011215; BR 9701273 A 19981110; DE 69708482 D1 20020110; DE 69708482 T2 20020627; DE 795616 T1 19980219; ES 2106007 T1 19971101; ES 2106007 T3 20020216; FR 2746112 A1 19970919; FR 2746112 B1 19980605; JP H108145 A 19980113; US 5798007 A 19980825
DOCDB simple family (application)
EP 97400537 A 19970311; AT 97400537 T 19970311; BR 9701273 A 19970312; DE 69708482 T 19970311; DE 97400537 T 19970311; ES 97400537 T 19970311; FR 9603140 A 19960313; JP 5928597 A 19970313; US 81422697 A 19970311