Method of manufacturing a can lid composed of a composite material
AssigneeTop Cap Holding GmbH
InventorGregor Anton Piech
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Abstract
A method of manufacturing a can lid composed of a composite material comprising at least one sheet metal part, in particular an aluminum part or a tin plate part, and at least one plastic part, in particular composed of polypropylene or polyethylene terephthalate, wherein the plastic material and the sheet metal part are joined together by pressing together and by inductive heating to effect a stable connection with an effort and a manufacturing time that are as small as possible.
Claims15
A method of manufacturing a can lid for a can, wherein the can lid is composed of a composite material comprising at least one sheet metal part and at least one plastic part, wherein the at least one sheet metal part has an upper side facing an exterior of the can and a lower side facing an interior of the can, wherein the at least one plastic part is joined to the lower side of the at least one sheet metal part by a joining process including pressing together and inductive heating, wherein a cross-sectional height profile of the at least one plastic part is adapted to a cross-sectional height profile of the at least one sheet metal part before the joining process, and wherein the at least one plastic part includes a plastic film.
Dependencies are inferred from the claim text.