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Stain-resistant cooking surface and cookware item or electrical household appliance comprising such a cooking surface

A technology for household appliances and products, which is applied in the fields of special materials for cooking utensils, transportation and packaging, vacuum evaporation coating, etc., and can solve the problems of unsatisfactory cleaning of cooking surfaces, inability to effectively resist, adhesion, etc.

Active Publication Date: 2014-09-10
SEB SA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this composition is not effective against the oxidation phenomena that produce stain retention on cooking surfaces, especially when cooking is performed at elevated temperatures
Furthermore, these coatings still tend to stick when cooking certain foods such as potatoes or fish in particular
Therefore, the cleaning of these cooking surfaces remains unsatisfactory

Method used

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  • Stain-resistant cooking surface and cookware item or electrical household appliance comprising such a cooking surface
  • Stain-resistant cooking surface and cookware item or electrical household appliance comprising such a cooking surface

Examples

Experimental program
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Embodiment Construction

[0037] A first embodiment of the invention concerns the deposition of a coating (Nb,Al)N on a substrate.

[0038] The substrate may advantageously consist of one or more metal sheets of the following materials: aluminium, copper, pig iron, steel, especially stainless steel. The substrate used is preferably an austenitic stainless steel (eg type 304 stainless steel) after ion descaling and degreasing of the substrate. More generally, the culinary product consists of a sandwich material comprising three co-rolled sheets with an aluminum sheet inserted between two stainless steel sheets to obtain a stainless steel / aluminum / stainless steel "triple" material.

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Abstract

The invention relates to a food cooking surface for a cookware item or an electrical household cooking appliance, consisting of a deposit of nitride of metal elements on a substrate, the metal elements of the deposit comprising one or more X transition metals and aluminium. The production of the deposit comprises a nitridation step in order to obtain a coating of type (X,Al)N. According to the invention, the (X,Al)N-type coating is a coating of nitride(s) of the one or more X transition metals, enriched with aluminium, in which niobium and / or zirconium is / are make up the most part of the X transition metal(s), the atomic ratio of aluminium in the metal elements of the deposit being at least equal to 20%. The invention also relates to cookware items and electrical household appliances intended for the cooking of food, comprising the above-mentioned type of cooking surface.

Description

technical field [0001] The present invention relates to the field of household appliances and culinary preparations intended to cook food, and more particularly to the cooking surface of these household appliances or culinary preparations which comes into contact with the food to be treated. [0002] The present invention aims to improve hard cooking surfaces which can be cleaned by means of tampon abrasif without causing scratches to form. Background technique [0003] Stainless steel is commonly used for cooking surfaces. However, stainless steel is not hard enough to withstand cleaning with grinding pellets. Moreover, these materials have the phenomenon of retaining stains when cooking, and the phenomenon of sticking food when cooking. [0004] Patent applications FR2848797, FR2883150 and FR2897250 disclose cooking surfaces that are harder than stainless steel. These surfaces in particular have the property of being relatively easy to clean after their use as a food co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/02C23C14/00A47J36/02
CPCC23C14/0036Y10T428/31678Y10T428/265A47J36/02C23C14/025C23C14/0641
Inventor P·皮雅J-F·皮尔森A·梅热-勒维F·特希尔S·阿勒芒S·蒂费
Owner SEB SA
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