The invention relates to a bending device for forming corrugations in a metal sheet, comprising: a lower frame; an upper frame able to move vertically between a rest position and a bending position; at least two dies, carried by the lower frame; one being fixed with respect to the lower frame and the other mounted with the ability to slide; at least two punches carried by the upper frame; one being fixed and the other being mounted with the ability to slide on the upper frame; the bending device being designed so that, in operation, as the upper frame moves towards its bending position, the metal sheet transmits a pulling force to the sliding punch and to the sliding die which force moves them from a spaced-apart position toward a close-together position.

The invention relates to a bending device for forming corrugations in a metal sheet, comprising: a lower frame; an upper frame able to move vertically between a rest position and a bending position; at least two dies, carried by the lower frame; one being fixed with respect to the lower frame and the other mounted with the ability to slide; at least two punches carried by the upper frame; one being fixed and the other being mounted with the ability to slide on the upper frame; the bending device being designed so that, in operation, as the upper frame moves towards its bending position, the metal sheet transmits a pulling force to the sliding punch and to the sliding die which force moves them from a spaced-apart position toward a close-together position.

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.

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.

The present disclosure provides a manufacturing process of an arc-shaped bottom titanium cup, including: S1: pressing an inner support ring; S2: primary crystallization; S3: matching; S4: welding opening parts; S5: pressing a titanium cup vacuum bottom; S6: welding the titanium cup vacuum bottom; S7: secondary crystallization; S8: vacuumizing; S9: detecting a thermal insulation function; S10: welding a titanium cup bottom plate; S11: surface polishing; and S12: oxidation processing. The present disclosure provides an inner support ring structure, the inner support ring always holds the titanium cup vacuum bottom round and maintains the titanium cup vacuum bottom in a high degree of roundness, thereby ensuring that a surface of a titanium cup shell and a titanium cup vacuum bottom is flat and smooth. The arc-shaped bottom titanium cup is clamped by adopting an upper mold and a lower mold, so that the arc-shaped bottom titanium cup is accurately limited.

In some embodiments of the present invention a method includes: obtaining a first aluminum alloy sheet formed from rolling a first ingot of a 3xxx or a 5xxx series aluminum alloy, wherein, prior to rolling, the first ingot has been heated to a sufficient temperature for a sufficient time to achieve a first dispersoid f/r of less than 7.65; and forming a container precursor from the first aluminum alloy sheet, wherein when the first aluminum alloy sheet is formed into the container precursor, the container precursor has less observed surface striations and ridges as compared to a container precursor formed from a second aluminum alloy sheet rolled from a second ingot having a second dispersoid f/r value of 7.65 or greater.

In some embodiments of the present invention a method includes: obtaining a first aluminum alloy sheet formed from rolling a first ingot of a 3xxx or a 5xxx series aluminum alloy, wherein, prior to rolling, the first ingot has been heated to a sufficient temperature for a sufficient time to achieve a first dispersoid f/r of less than 7.65; and forming a container precursor from the first aluminum alloy sheet, wherein when the first aluminum alloy sheet is formed into the container precursor, the container precursor has less observed surface striations and ridges as compared to a container precursor formed from a second aluminum alloy sheet rolled from a second ingot having a second dispersoid f/r value of 7.65 or greater.

The present disclosure provides an aluminum bottle and a preparation method thereof and belongs to the technical field of alloy. The present disclosure can improve the structure and enhance impact mechanical properties of an aluminum material by controlling a content of manganese to be 0.03-0.5 wt. %. Nickel can improve the strength and rust resistance of the aluminum material. Strontium can form an aluminum-strontium combination to adjust the crystal orientation of a metal lattice, improve forming, and greatly enhance the flexibility. Zirconium acts synergistically to improve the corrosion resistance of the aluminum material and improve surface gloss. The prepared aluminum material is light in weight and has the advantage of high bearing strength.

The present disclosure provides an aluminum bottle and a preparation method thereof and belongs to the technical field of alloy. The present disclosure can improve the structure and enhance impact mechanical properties of an aluminum material by controlling a content of manganese to be 0.03-0.5 wt. %. Nickel can improve the strength and rust resistance of the aluminum material. Strontium can form an aluminum-strontium combination to adjust the crystal orientation of a metal lattice, improve forming, and greatly enhance the flexibility. Zirconium acts synergistically to improve the corrosion resistance of the aluminum material and improve surface gloss. The prepared aluminum material is light in weight and has the advantage of high bearing strength.

A pressure vessel containing a main body with at least one opening. The pressure vessel is made from a BMG material. The pressure vessel may contain an additional part such as a neck, a liner, a rib, a lattice, a fin, and a diaphragm. The pressure vessel may be free of a welded joint in entirety. The pressure vessel may contain multiple parts in the main body, each of which is free of a welded joint. The pressure vessel may be made through thermoplastic forming.