Abstract:
A system and method of manufacturing a metal vessel may include providing a preform being formed of a work hardened metal. The preform may have an open portion, a closed end portion, and body portion. A multiple segment mold may be closed around the preform. The preform may be blow molded by causing a step-like change in pressure within the preform to cause the preform to take a shape defined by the mold. The molded preform may be removed from the mold.
Abstract:
A metal beverage container may include a body portion, a neck portion connected with said body portion, and a finish portion. The finish portion may include a threaded portion, a lip portion, and a transition portion coupled between the threaded portion and the lip portion. The transition portion may include an outwardly convex shape.
Abstract:
A system and method of manufacturing a metal vessel may include providing a preform being formed of work hardened aluminum. The preform may have an open portion, a closed portion, and body portion. A multiple segment mold may be closed around the preform. The multiple segment mold may include at least one projecting portion operative to partially deform the preform while closing the mold. The preform may be blow molded by causing a step-like change in pressure within the preform to cause the preform to take a shape defined by the mold when the mold is in the closed position. The molded preform may be removed from the mold.
Abstract:
A method of forming a shaped container may include providing a metallic preform. A first pressure may be applied to the metallic preform within a mold of a shaped container to produce a container part with a partially formed container shape. The container part with the partially formed container shape may then be at least partially annealed. A second pressure may be applied to the container part within the mold to produce a container part with a fully formed container shape.
Abstract:
A system and method of manufacturing a metal vessel may include providing a preform formed of a work hardened metal that includes an open portion, a closed end portion, and body portion. The body portion of the preform may be preheated in a manner that limits heat being applied to the open portion and closed end portion of the preform. The preheated preform may be blow molded.
Abstract:
A system and method of manufacturing a metal vessel may include inserting a preform into a mold that includes multiple segments, the preform being a work hardened metal. A pre-pressure may be applied to the preform at a first pressure level. The multiple segments of the mold may be closed, and the pressure being applied to the preform may be increased using a step function to a second pressure level after the mold is closed to cause the preform to take a shape defined by the mold.
Abstract:
The principles of the present invention further provide both a shaped metal container and its preforms that exhibit a rounded grain structure characteristic created by an annealing process and a method for making a shaped metal container. The process of making said metal container results in a quicker process time and uses less metals (at least 10% metal weight savings), thus allowing for a decrease in the costs of making such shaped metal containers. A shaped metal container may include work hardened rolled sheet-metal defining a sidewall, an opening, and a base, where at least one section along the sidewall has grains with an average aspect ratio less than about 4 to 1.
Abstract:
The principles of the present invention further provide both a shaped metal container and its preforms that exhibit a rounded grain structure characteristic created by an annealing process and a method for making a shaped metal container. The process of making said metal container results in a quicker process time and uses less metals (at least 10% metal weight savings), thus allowing for a decrease in the costs of making such shaped metal containers. A shaped metal container may include work hardened rolled sheet-metal defining a sidewall, an opening, and a base, where at least one section along the sidewall has grains with an average aspect ratio less than about 4 to 1.
Abstract:
A method of forming a shaped container may include providing a metallic preform. A first pressure may be applied to the metallic preform within a mold of a shaped container to produce a container part with a partially formed container shape. The container part with the partially formed container shape may then be at least partially annealed. A second pressure may be applied to the container part within the mold to produce a container part with a fully formed container shape.