EP 0157708 A3 19870520 - DEGREASING PROCESS FOR COLD-ROLLED METAL STRIP
Title (en)
DEGREASING PROCESS FOR COLD-ROLLED METAL STRIP
Publication
Application
Priority
- FR 8405366 A 19840405
- FR 8414950 A 19840928
Abstract (en)
[origin: US4840680A] A method of degreasing a cold rolled metallic band, through the chemical effect of an atmosphere of a determined composition, according to which the heating and degreasing actions are separated, wherein the heating is carried out in an enclosure provided with means for applying heat by radiation, and the degreasing is obtained by the chemical effect of said atmosphere in the heating enclosure, said method being characterized in that said atmosphere is made of a mixture of nitrogen and hydrogen enriched with steam injected in the degreasing section of said enclosure.
IPC 1-7
IPC 8 full level
B21B 45/02 (2006.01); C23G 5/00 (2006.01)
CPC (source: EP US)
B21B 45/0284 (2013.01 - EP US); C23G 5/00 (2013.01 - EP US)
Citation (search report)
- [YD] EP 0069009 A1 19830105 - STEIN HEURTEY [FR]
- [Y] US 2625495 A 19530113 - CARROLL CONE, et al
- [A] FR 2415147 A1 19790817 - VALJIM CORP [US]
- [A] FR 1568732 A 19690530
- [A] EP 0032583 A1 19810729 - NIPPON STEEL CORP [JP]
- [E] FR 2562562 A1 19851011 - STEIN HEURTEY [FR]
- [Y] PATENTS ABSTRACTS OF JAPAN, vol. 1, no. 4, 10 mars 1977, page 46 C 76; & JP-A-51 112 413 (SUMITOMO KINZOKU KOGYO K.K.) 04-10-1976
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0157708 A2 19851009; EP 0157708 A3 19870520; EP 0157708 B1 19901010; DE 3580055 D1 19901115; US 4840680 A 19890620
DOCDB simple family (application)
EP 85400669 A 19850403; DE 3580055 T 19850403; US 4846887 A 19870508