Cooking vessel for induction cooker, comprises circular shaped bottom located at inner side of base body, and ferromagnetic layer that is deposited on inner side of body by cool sputtering and has sufficient thickness to use on cooker

摘要

The cooking vessel (1) comprises a circular shaped bottom (3) located at an inner side of a base body (2), a ferromagnetic layer (4) that is deposited on the inner side of the base body by cool sputtering and has a sufficient thickness to use on an induction cooker, and an outer side of the base body. The vessel is made of a sheet that is made of copper or its alloy. A bottom zone of the base body is subjected to pre-stamping and located in a plane or has deformations or bulge pointing towards interior of the vessel. An outer side of the layer is connected with the base body. The cooking vessel (1) comprises a circular shaped bottom (3) located at an inner side of a base body (2), a ferromagnetic layer (4) that is deposited on the inner side of the base body by cool sputtering and has a sufficient thickness to use on an induction cooker, and an outer side of the base body. The vessel is made of a sheet that is made of copper or its alloy. A bottom zone of the base body is subjected to pre-stamping and located in a plane or has deformations or bulge pointing towards interior of the vessel. An outer side of the layer is connected with the base body, and an inner side of the layer is connected in a marginal region. The sheet forming the base of the container is internally equipped with a coating (6) and a steel plating or lining. The ferromagnetic layer exonerates the coating from the center of the bottom, which is located at a center of the vessel. A radial dimension or radius of a surface devoid of coating within the inner region of the coating is smaller than a dimension of the coated region or the layer. A diameter of the non-coated circular region is one-fourth of a diameter of an integral coated bottom.