EP 0475427 B1 19941130 - A heating element and a method for manufacturing the same.
Title (en)
A heating element and a method for manufacturing the same.
Title (de)
Heizelement und Verfahren zu seiner Herstellung.
Title (fr)
Elément de chauffage et procédé pour sa fabrication.
Publication
Application
Priority
- JP 24435790 A 19900914
- JP 25966990 A 19900927
Abstract (en)
[origin: EP0475427A1] A heating element (1) for a cooking apparatus or a heating apparatus is manufactured by forming aluminium layers on a nickel or nickel-base alloy base or forming nickel layers and then aluminium layers on a metal base (2), and by oxidizing the aluminium layers into an aluminium oxide layers. At the oxidizing step, nickel-aluminium alloy layers with high corrosion resistance are also produced. Only aluminium layers, not nickel layers, may be formed on a metal base and oxidized into aluminium oxide layers to obtain a heating element with relatively low but practical corrosion resistance. The resultant heating element by any of the above processes which does not require a cover or other protection against corrosion is formed into a sheet and heated to provide radiation of about 800 DEG C. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
A47D 13/025 (2013.01 - EP); H05B 3/12 (2013.01 - EP); H05B 3/20 (2013.01 - KR); H05B 3/30 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0475427 A1 19920318; EP 0475427 B1 19941130; AU 630306 B2 19921022; AU 8384391 A 19920611; BR 9103944 A 19920526; CA 2051231 A1 19920315; DE 69105419 D1 19950112; DE 69105419 T2 19950629; KR 920007494 A 19920428; KR 940005461 B1 19940618
DOCDB simple family (application)
EP 91115541 A 19910913; AU 8384391 A 19910912; BR 9103944 A 19910913; CA 2051231 A 19910912; DE 69105419 T 19910913; KR 910016044 A 19910914