Alinox Ag

Imphy Alloys

Eisfink Max Maier Gmbh & Co. Kg

Norbert Hoffstaedter

Markus Spring

Thierry Waeckerle

Yves Grosbety

Hervé Fraisse

A description is given of a process for producing a metal plate having at least one embedded heating element and of the metal plate produced by the process. The heating element is arranged between two plate bodies, and the heating element is embedded in the plate bodies by rolling with material displacement. The adjacent sides of the plate bodies have a layer of aluminum or an aluminum alloy. After a heat pre-treatment at the re-crystallization temperature of the aluminum or the aluminum alloy, the plate bodies are pressed against one another to bring about a reduction in thickness, with which the plate bodies form a diffusion bond with one another and are integrally bonded to one another over the entire surface area thereof to form the metal plate to be produced. The process produces a metal plate as a whole with better thermal conductivity and a broader spectrum of use.

Process for producing a metal plate having an embedded heating element and metal plate produced thereby

A strip-shaped or plate-shaped composite metal object and a method for the production thereof. The composite metal object has at least two layers of the same metal. The layers have been brought by a heat pretreatment to a temperature such that a mutual diffusion bond has resulted through subsequent pressing of the layers against one another, while reducing the thickness by 5 to 25% and preferably 8 to 15%. A layer, which on the side thereof facing an adjacent layer has strip-shaped recesses, which are closed by the adjacent layer to form channels when the layers are pressed together, is used as one of the layers. The channels in the composite metal object allow the inclusion of additional elements before processed further to form an implement. The channels remain extensively preserved during the production and further processing of the composite model object.

Composite metal object and method for producing a composite object

The invention relates to a cooking vessel comprising a base made of a multilayer material and a side wall, the said multilayer material comprising, in succession from the outside of the vessel to the inside of the vessel: an outer part, having a thickness e, consisting of a layer of a ferromagnetic Nickel based alloy having a Curie temperature of between 30 and 350&#xb0; C. and a thermal expansion coefficient of greater than or equal to 6.5.10K, and a core, having a thickness e, comprising at least one layer selected among aluminium, aluminium alloy and copper.

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Icking, Germany

Norbert Hoffstaedter