The invention discloses a process for manufacturing a frying pan, which is characterized by comprising the steps of material selecting, cutting, machining and forming, welding, grinding, sanding, cleaning, baking, preparing of a ceramic paint, spraying of a ceramic paint, curing, cooling and the like. The invention has the advantage of simple process and can be used to obtain a finished frying pan with better quality.

Provided is a method of producing a cooking vessel, including the following steps: forming a blank from a sheet of stainless steel; drawing of the blank to form a cap comprising an interior surface and an exterior surface, the interior surface comprising a flat base area surrounded by a side wall; hot stamping of a diffuser base onto the exterior surface of the cap; engraving of a grid pattern over at least one portion of the base area of the interior surface of the cap to form a network of ribs having top surfaces that extend above the valleys and side surfaces that are distinct from the bottom surfaces of the valleys, said side surfaces of the ribs connecting the top surfaces of the ribs to the bottom surfaces of the valleys, the side surfaces of the ribs forming ramps connecting the top surfaces of the ribs to the bottom surfaces of the valley; sanding of at least the engraved base area of the interior surface of the cap, to create roughness; applying a non-stick coating on at least the sanded, engraved base area; and brushing and/or polishing of at least the sanded, engraved and coated base area to reveal the stainless steel on the top surfaces of the ribs.

A cooking vessel includes a vessel body having a partially coated, textured stainless steel inner surface having a plurality of ribs rising above recesses having bottoms covered with a non-stick coating. The ribs have uncoated tops and sides that are separate from the bottoms of the cavities. The sides connect the tops to the bottoms. The tops rise above the non-stick coating covering the bottoms. According to the invention, the non-stick coating rises over the sides from the bottoms towards the tops without exceeding the height of the tops, and the bottoms and the sides have a rough surface under the non-stick coating. Also included is a method for producing a cooking vessel.

A food product contact member that makes contact with a food product. The food product contact member is configured from a metal or a substance containing a metal. The food product contact member includes a contact surface making contact with the food product and having a micronized structure. Plural smooth circular arc shaped depressions without pointed protrusions are formed over an entirety of the contact surface. Titanium oxide is diffused and penetrated at a proximity to a surface of the contact surface contacting the food product.

A checkered composite plate comprises a basal plate and a metal mesh; the material of the basal plate is aluminum; the metal mesh is embedded at the upper end of the basal plate and fixedly connected with the basal plate; the upper end of the metal mesh extends to the upper part of the basal plate; and the metal mesh forms raised checkers above the basal plate. In the checker composite plate of the present invention, the metal mesh is compounded on the upper end of the basal plate made of aluminum, so that the surface hardness of the aluminum basal plate is enhanced, thereby solving the defect that the aluminum basal plate is soft and not wear-resistant, solving the defect that the common composite plate is easy to deform when heated due to different stress of different materials.

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 method for making a container includes forming a first cavity of a container by shaping an inner wall so that a first surface of the inner wall defines the first cavity; forming a second cavity of the container by shaping an outer wall so that a third surface of the outer wall surrounds a second surface of the inner wall such that together the third and second surfaces define the second cavity; and connecting the inner and outer walls together. The method then includes forming a hole through the outer wall to expose the second cavity to the outside ambient environment and then applying an enamel coating, while preventing the enamel coating from being deposited in the hole. After the enamel coating is applied, the method includes heating the container to glaze the enamel coating and fix the coating to the one or more surfaces.

A method for making a container includes forming a first cavity of a container by shaping an inner wall so that a first surface of the inner wall defines the first cavity; forming a second cavity of the container by shaping an outer wall so that a third surface of the outer wall surrounds a second surface of the inner wall such that together the third and second surfaces define the second cavity; and connecting the inner and outer walls together. The method then includes forming a hole through the outer wall to expose the second cavity to the outside ambient environment and then applying an enamel coating on at least one of the following: the first surface of the inner wall and a fourth surface of the outer wall that is exposed to the outside ambient environment, while preventing the enamel coating from being deposited in the hole. After the enamel coating is applied, the method includes heating the container to glaze the enamel coating and fix the coating to the one or more surfaces. After the enamel is glazed, the method includes removing air from the second cavity; and then while the air is removed from the second cavity, sealing the second cavity so that the pressure inside the second cavity is less than the pressure in the outside ambient environment.

A coated cooking element includes the following steps: i. Providing a metal substrate having a face, to be coated with a film; ii. Providing the film, the film having a layer to be brought in contact with the face of the metal substrate, the layer comprising: 50-100% by weight of polytetrafluoroethylene (PTFE) 0-50% by weight of one or more thermoplastic polymers different from PTFE the percentages being relative to the total weight of PTFE and said one or more thermoplastic polymer(s); iii. Heating the metal substrate; iv. Positioning the film such that layer faces the face of the metal substrate heated in step iii.; v. Assembling the metal substrate and the film by hot stamping, the metal substrate being at a temperature between 350 C. and 550 C. at the time of assembly; and such that the film is heated essentially by conduction when brought in contact with the metal substrate at the time of assembly in step (v).

A method for manufacturing a coated cooking element includes the following steps: i. Providing a metal substrate and a metal mesh, the metal substrate having a face intended to be brought into contact with the metal mesh; ii. Attaching the metal mesh to the face; iii. Providing a film having a layer including one or more semi-crystalline or amorphous thermoplastic polymers, the layer configured to be brought into contact with the face and with the metal mesh; iv. Heating the metal substrate and the metal mesh; v. Positioning the film such that the layer is facing the face and the metal mesh; vi. Assembling the metal substrate and the metal mesh with the film by hot stamping, the metal substrate and the metal mesh being at a temperature higher than the lowest of the melting points of the semi-crystalline thermoplastic polymers and the glass transition temperatures of the amorphous thermoplastic polymers of the layer at the time of assembly.