Abstract: Described is Al-Mg Sheet, in annealed condition, which has good formability and is further characterized structurally by its ability to be formed in the manufacture of sheet-metal products without being marked by Type A Luder lines. Also described are method aspects of producing such sheet, including the steps of selectively annealing and quenching followed by stretching.

Abstract: An inductor/shield assembly for an electromagnetic continuous-casting system comprises a sheet of electrically insulative material coated onto the inner face of a loop-shaped electromagnetic inductor with a tapered shield supported on the insulative material between an electro-magnetic inductor and an ingot being cast. In an embellishment of this embodiment the inductor forms a wall of a coolant box and the inductor, insulative material, and shield define passages through which coolant is sprayed from the coolant box onto an ingot being cast.

Abstract: Compacted-particle sheets are wrought from essentially scrap aluminum. A relatively thick composite laminate of such sheets is then produced by preheating a plurality of compacted-particle sheets and bonding them together by hot rolling in a single pass through a hot rolling mill to achieve a thickness reduction of about 50 percent. A second pass through a rolling mill results in a further 20 percent reduction and improved bonding. Improved laminate qualities are also obtained by further laminating with other aluminum alloys and other metals.

Abstract: A solid inductor for forming an inner wall of a coolant box for an electromagnetic continuous casting system has a deflector integrally formed on the exterior surface thereof to deflect coolant passing through passages in the solid inductor. In one embodiment, the deflector is formed by an indentation on the exterior surface of the deflector, and in another embodiment, it is formed by a protrusion on the exterior surface of the solid inductor.

Abstract: A method for treating hot skim material to separate, recover, and prepare for use both aluminum and non-aluminous constituents contained in the hot skim materials involves a centrifuge having a rotatable bowl to receive a charge of skim material. The centrifuge then both consolidates the non-aluminous constituents thereof into a semi-porous cake and separates and discharges molten aluminum as the bowl is rotated. The semi-porous cake is cooled and found to be friable. Thereafter, the friable cake is crushed and screened to be used as a foaming and extending agent.

Abstract: A shield to be used in an electromagnetic continuous casting system comprises segmental strips forming a segmented, tubularly-shaped shield encircling a casting station and being positioned between molten metal being cast and an electromagnetic inductor.

Abstract: In combination with a resistance spot welding machine for welding superimposed electrically conductive members an improved apparatus for and method of cleaning welding electrodes and associated portions of the members to be welded are provided utilizing inert gas cooperating with electrical circuitry such that a sequential cleaning of each electrode and its portions are provided which is self starting and ending as a function of the presence of sufficient inert gas.

Abstract: A ball bat is provided and comprises a body member which terminates at one end with a hollow handle portion having a pair of aligned holes, a knob fitted to the handle portion and having a pair of aligned holes in aligned relationship with the aligned holes in the handle portion, and a pin which extends through the pair of aligned holes in the knob and the pair of aligned holes in the handle portion and which follows a circuitous path through the hollow of the handle portion.

Abstract: A method of manufacturing a tab (43) of the type attachable to an easy-open container wall to open of a tear panel of the container wall, including an initial step of placing a protruding stitch (45) in a sheet metal strip (47) from which the tab is to be formed. Thereafter, a tab blank (51) is cut in the strip of sheet metal, with this cut starting and ending immediately adjacent to opposite sides of the stitch, but the cutting die is separated slightly from the stitch. Thereafter, the outer periphery (61) of the tab blank is curled onto the inner surface of the tab blank. The stitch is then severed adjacent the tab.

Abstract: Light source and light sensor on opposite sides of wall of container detect pinhole or crack in container wall, with container rejection means operable by light sensor.