A method of making cookware containing a bonded composite comprising the steps of providing at least two layers of materials by pressurizing and heating wherein the first of the at least two layers of materials has a plurality of spaced-apart bubbles formed on its surface, defining a cooking surface of the cookware, and a second layer of two layers of material is bonded thereto, wherein the bonding between the bubbles and the second material is of a lesser degree than the bonding between the first and second layers of materials in areas intermediate the bubbles, whereby a coefficient of heat conductivity is greater in the intermediate areas than in the bubbles. The method also includes providing a plurality of sets of bonding blank assemblies by solid state processing under pressure and heat.

A method of making cookware containing a bonded composite comprising the steps of providing at least two layers of materials by pressurizing and heating wherein the first of the at least two layers of materials has a plurality of spaced-apart bubbles formed on its surface, defining a cooking surface of the cookware, and a second layer of two layers of material is bonded thereto, wherein the bonding between the bubbles and the second material is of a lesser degree than the bonding between the first and second layers of materials in areas intermediate the bubbles, whereby a coefficient of heat conductivity is greater in the intermediate areas than in the bubbles. The method also includes providing a plurality of sets of bonding blank assemblies by solid state processing under pressure and heat.

Provided is a cooking vessel which comprises heat transfer structures for directing a flame, which is concentrated on the center of a vessel part, to be diffused to the edge of the vessel part, thus allows heat to be sufficiently diffused to parts other than the center while the heat is conducted from the outer side to the inner side of the bottom of the vessel part, can be made lightweight, and allows a reduction in material and production costs. The cooking vessel, which comprises the vessel part in which to put and cook contents and handle parts installed on the vessel part, has the heat transfer structures installed on the outer side of the bottom of the vessel part, wherein the heat transfer structures are formed in a shape that allows the radial formation of multiple flame diffusion paths for flame diffusion to the edge of the vessel part.

Provided is a cooking vessel which comprises heat transfer structures for directing a flame, which is concentrated on the center of a vessel part, to be diffused to the edge of the vessel part, thus allows heat to be sufficiently diffused to parts other than the center while the heat is conducted from the outer side to the inner side of the bottom of the vessel part, can be made lightweight, and allows a reduction in material and production costs. The cooking vessel, which comprises the vessel part in which to put and cook contents and handle parts installed on the vessel part, has the heat transfer structures installed on the outer side of the bottom of the vessel part, wherein the heat transfer structures are formed in a shape that allows the radial formation of multiple flame diffusion paths for flame diffusion to the edge of the vessel part.

A metal film or plate, a method for obtaining thereof and some practical applications are described. The film is subject to heating by Joule effect created by parasitic currents induced by a time-varying magnetic field. The film is constituted by a metal alloy containing a first metal in a percentage comprised between 90% and 99% by mass of the total mass and a second metal in a percentage comprised between 1% and 10%. The thickness of the film is equal to, or lower than, 10 cm. The first metal is an amagnetic metal and the second metal is a ferromagnetic metal. In this way the film has ferromagnetic behavior still being mainly made by amagnetic metal. This allows exploiting in an optimal way both the mechanical features of amagnetic metals, and the magnetic features of ferromagnetic metals.

A metal film or plate, a method for obtaining thereof and some practical applications are described. The film is subject to heating by Joule effect created by parasitic currents induced by a time-varying magnetic field. The film is constituted by a metal alloy containing a first metal in a percentage comprised between 90% and 99% by mass of the total mass and a second metal in a percentage comprised between 1% and 10%. The thickness of the film is equal to, or lower than, 10 cm. The first metal is an amagnetic metal and the second metal is a ferromagnetic metal. In this way the film has ferromagnetic behavior still being mainly made by amagnetic metal. This allows exploiting in an optimal way both the mechanical features of amagnetic metals, and the magnetic features of ferromagnetic metals.

Provided is an article of cookware and a method of making the same. The cookware has a multi-layer bonded composite wall structure having an inner metal layer and an outer metal layer, and a core layer between the inner layer and the outer layer. The core layer has at least two perforated graphite plates, each plate having a plurality of spaced-apart holes formed therethrough, and at least one intermediate metal element disposed between the at least two perforated graphite plates and extending through the plurality of spaced-apart holes of each of the at least two perforated graphite plates. The at least one intermediate metal element is metallurgically bonded to the inner layer and the outer layer at least through the plurality of spaced-apart holes.

Provided is an article of cookware and a method of making the same. The cookware has a multi-layer bonded composite wall structure having an inner metal layer and an outer metal layer, and a core layer between the inner layer and the outer layer. The core layer has at least two perforated graphite plates, each plate having a plurality of spaced-apart holes formed therethrough, and at least one intermediate metal element disposed between the at least two perforated graphite plates and extending through the plurality of spaced-apart holes of each of the at least two perforated graphite plates. The at least one intermediate metal element is metallurgically bonded to the inner layer and the outer layer at least through the plurality of spaced-apart holes.

A physical non-stick pan with a convex-concave structure, and a manufacturing method thereof are provided. The physical non-stick pan includes a pan body, where the convex-concave structure is formed on an inner surface of the pan body, the convex-concave structure comprises a convex edge protruding from the inner surface of the pan body and a recess enclosed by the convex edge, and a physical non-stick layer is at least arranged on an inner surface of the pan body in the recess. In the convex-concave structure, the convex edge protects a non-stick layer arranged in the recess, reduces a direct friction between a spatula and the non-stick layer, and prolongs a non-stick effect of the pan body.

A physical non-stick pan with a convex-concave structure, and a manufacturing method thereof are provided. The physical non-stick pan includes a pan body, where the convex-concave structure is formed on an inner surface of the pan body, the convex-concave structure comprises a convex edge protruding from the inner surface of the pan body and a recess enclosed by the convex edge, and a physical non-stick layer is at least arranged on an inner surface of the pan body in the recess. In the convex-concave structure, the convex edge protects a non-stick layer arranged in the recess, reduces a direct friction between a spatula and the non-stick layer, and prolongs a non-stick effect of the pan body.