Abstract: A method of manufacturing a textured-smooth hybrid metal closure cap, and a closing caps produced by the method. The method includes a) the supply of a strip or sheet, made of aluminum alloy known as a “textured” strip or sheet, typically coated on at least one of its faces by a stampable lacquer, b) a first operation for cutting discs, called blanks, c) a step for stamping, in one or more passes, of said blank metal, typically using a stamping lubricant, so as to form a stamped blank, comprising a head and a skirt, typically axially symmetric in the axial direction, d) a step for degreasing said stamped blank, typically intended to eliminate the remaining lubricant, to form a degreased blank that can be lacquered, and e) an optional step of protective lacquering and decoration. After the stamping step, and before the lacquering step, at least one drawing step consisting in passing the stamped blank through drawing rings in order to stretch and thin the metal.

Abstract: A method of manufacturing a textured-smooth hybrid metal closure cap, and a closing caps produced by the method. The method includes a) the supply of a strip or sheet, made of aluminum alloy known as a “textured” strip or sheet, typically coated on at least one of its faces by a stampable lacquer, b) a first operation for cutting discs, called blanks, c) a step for stamping, in one or more passes, of said blank metal, typically using a stamping lubricant, so as to form a stamped blank, comprising a head and a skirt, typically axially symmetric in the axial direction, d) a step for degreasing said stamped blank, typically intended to eliminate the remaining lubricant, to form a degreased blank that can be lacquered, and e) an optional step of protective lacquering and decoration. After the stamping step, and before the lacquering step, at least one drawing step consisting in passing the stamped blank through drawing rings in order to stretch and thin the metal.

Abstract: Process for early detection of an anode effect in an aluminum production cell based on molten salt electrolysis. The cell comprises at least one anode, at least one cathode and cathode connecting conductors and anode connecting conductors.

Abstract: Process for early detection of an anode effect in an aluminum production cell based on molten salt electrolysis. The cell comprises at least one anode, at least one cathode and cathode connecting conductors and anode connecting conductors.