Abstract: A free-machining alloy is disclosed containing bismuth and indium. The free-machining constituents act as low melting point compounds for machining and are specially adapted for use in aluminum alloys such as AA6000 series and AA 2000 series alloys. The bismuth and indium are effective replacements for the lead and bismuth addition used previously to improve machinability while providing a high impact energy free machining alloy.

Abstract: A cling wrap comprising a first surface having an embossed area including a plurality of protrusions therefrom forming a plurality of raised contact surfaces and a base surface, wherein the total surface area of said raised contact surfaces comprises less than about 10 percent of the total surface area of the embossed area. An adhesive is applied to cover at least 80 percent of the embossed area. The cling wrap is acceptable for direct food contact and is sufficiently heat resistant for microwave re-heating.

Abstract: A differential cling film is provided. The differential cling film includes a core layer having a first surface and a second surface. The core layer includes a polyethylene polymer. A high cling layer is provided covering the first surface of the core layer. The high cling layer includes an ultra low density polyethylene and a non-liquid tackifier. A low cling layer is provided covering the second surface of the core layer. The low cling layer includes polyolefin and non-liquid tackifier. A wrapped bale, a method for producing a differential cling film, and a method for wrapping forage is additionally provided.

Abstract: This invention provides a method and apparatus for casting, hot rolling and annealing of non-heat treatable aluminum alloys which comprises continuously casting, hot rolling, and, in-line with the hot rolling line, inductively heating the aluminum sheet. The induction heating system uses a feedback control to assure that the aluminum alloy is heated to the proper temperature based on one or a number of process variables, such as hot rolling exit temperature, hot rolled product exit rate in terms of speed and product dimensions, and sheet temperature at the exit of the induction heater. Variations in the induction heating temperature can be tolerated in the product without deviating from target mechanical properties.

Abstract: Naturally occurring bauxites are suitable as flame retardants and can be incorporated into polymeric carpet backings, when they are ground or pulverized to obtain a generally uniform distribution of particles predominantly less than 250 micrometers in size and containing up to 45 wt. % of fines (less than 3 micrometers in size), and then used in combination with an appropriate wetting agent, dispersant, froth aid, latex, and thickener package to wet-out and disperse the particles and provide adequate control of viscosity build. The bauxite should preferably have a high gibbsite content and should preferably have a pH range of from 4.5 to 8. Mechanical stirring can be used to aid in viscosity control. Lowering the specified percent solids in a formulation by adding small amounts of water allows for even finer ground bauxite (up to 55 wt. % of fines) to be used as filler for carpet backings.

Abstract: A lenticular preprinting process producing a composite image which, when printed, is assembled with a lenticular lens material (18). The composite image is developed from a plurality of images (A-D) which include both graphic and textual images. Each of the respective images are digitized and a pixel array for the image is formed. Separate digital files are created for each image. Next, computerized files are separately created for continuous tone images and for linework images. From these computerized files, separate raster image files for the continuous tone and linework images are produced. Next, segments from each raster image file is combined in a predetermined sequence with segments from the other raster image files to separately interlace the respective continuous tone and line work images. The resulting combined files are now linked to produce an image having both continuous tone and linework constituents.

Abstract: A light-weight, corrosion-resistant, readily installed bridge deck is formed of modular deck panels spliced to each other on site. Each of the deck panels is shop-fabricated by longitudinally welding flanges of adjacently placed multi-void extruded aluminum alloy structural elements. Transfer splices of longitudinally adjacent elongate elements are made by providing shear elements connecting individual elongate structural elements of each deck panel end-to-end prior to longitudinal welding of adjacent elongate elements, with the end joints between the elongate elements being arrayed in a staggered manner. A safety rail system is mounted to run alongside and above outer edges of the finished bridge deck mounted to a system of support girders.

Abstract: An aluminum alloy article consisting essentially of controlled amounts of iron, silicon, copper, manganese, magnesium, titanium, zinc, zirconium and free machining elements with the balance being aluminum and incidental impurities is adapted for use as a connector block in a heat exchanger assembly. The connector block has a connector block body with at least one machined portion therein and is configured to be brazed to a portion of the heat exchanger, particularly the heat, exchanger header. The aluminum alloy combines the properties of machinability, corrosion resistance, strength and brazeability. A connector block made from the aluminum alloy can be machined to the right configuration and can be brazed to the heat exchanger header to form a high quality brazed joint. In addition, the connector block can withstand the corrosive environment associated with the heat exchanger and has the necessary mechanical properties to interface with other heat exchanger components.

Abstract: The invention relates to a method for forming high performance metal alloys using powder metallurgy. Alloys are extruded under controlled temperature conditions through an extrusion die containing non-metal bearing inserts. This allows the extrusion of hypereutectic alloys without excessive wear of the extrusion die.

Abstract: An aluminum-based alloy composition having improved combinations of corrosion resistance, drawability, bendability and extrudability consists essentially of, in weight percent, not more than about 0.03% copper, between about 0.1 and up to about 1.5% manganese, between about 0.03 and about 0.35% titanium, an amount of magnesium up to about 1.0%, less than 0.01% nickel, between about 0.06 and about 1.0% zinc, an amount of zirconium up to about 0.3%, amounts of iron and silicon up to about 0.50%, up to 0.20% chromium, with the balance aluminum and inevitable impurities. A process of making an aluminum alloy article having high corrosion resistance, drawability, bendability and hot deformability is also provided.

Abstract: An extruded metal matrix composite incorporates boron carbide in fine particulate form. The composition is useful as a radiation shield.

Abstract: In order to form a plastic wrap which exhibits little or no cling until such time as the wrap is applied to an article or the like, the adhesive layer, which is formed on one side of a sheet of olefinic polymer, is exposed to a treatment which superficially oxidizes or cross-links the outer layer of adhesive material to form a film which exhibits greatly attenuated adhesion. This film is disruptable as the wrap is applied and is stretched and or deformed in a manner which uncovers the adhesive material and endows cling properties on at least localized areas of the wrap. Techniques for treating the adhesive layer include UV irradiation, exposure to corona and ozonification.

Abstract: A child resistant tablet package accommodates low density pharmaceutical tablets. The package includes a blister tray having a plurality of blister depressions which accommodate the low density porous pharmaceutical tablets. The blister tray further includes a frangible tray extent spaced adjacent to each blister depression. The frangible tray extent may be manually punctured through the surface of the blister tray. A planar lid is removably sealed over the blister tray and encloses the tablets within the blister depressions. The blister lid includes frangible cover extents overlying each of the frangible tray extents. The cover extents and the tray extents may be frangibly displaced so as to establish a graspable peel tab to facilitate peelable removal of portions of the cover from the overlying disposition with respect to the blister depressions so as to expose the tablets for dispensing.

Abstract: An aluminum-based alloy composition having improved corrosion resistance and extrudability consists essentially of, in weight percent, an amount of copper up to about 0.03%, between about 0.1 and 0.5% manganese, between about 0.03 and 0.30% titanium, between about 0.06 and 1.0% zinc, an amount of iron up to about 0.50%, between about 0.05 and 0.12% Si, less than 0.01% manganese, less than 0.01% nickel, up to 0.5% chromium with the balance aluminum and incidental impurities. A process of making an aluminum alloy article having high corrosion resistance also is provided.

Abstract: A light-weight, corrosion-resistant, readily installed bridge deck is formed of modular deck panels spliced to each other on site. Each of the deck panels is shop-fabricated by longitudinally welding flanges of adjacently placed multi-void extruded aluminum alloy structural elements. Transfer splices of longitudinally adjacent elongate elements are made by providing shear elements connecting individual elongate structural elements of each deck panel end-to-end prior to longitudinal welding of adjacent elongate elements, with the end joints between the elongate elements being arrayed in a staggered manner. A safety rail system is mounted to run alongside and above outer edges of the finished bridge deck mounted to a system of support girders.

Abstract: A bridge structure includes a light-weight, corrosion-resistant, readily installed bridge deck formed of modular deck panels spliced to each other on site. The deck panels are preferably shop-fabricated by longitudinal welding of adjacently placed multi-void elongate structural elements. Longitudinally adjacent elongate elements are spliced by providing internally disposed shear elements prior to longitudinal welding of adjacent spliced elongate elements, with the end joints between spliced elongate elements being arrayed in a staggered manner. A safety rail system is mounted to run alongside and above outer edges of the finished bridge deck mounted to a system of support girders.

Abstract: An aluminum alloy bridge deck construction is disclosed with a wearing surface applied thereto. The surface of the welded-together extrusions of the bridge deck is treated so that a tight bond is formed between the wearing surface and the extrusion surface. When splicing bridge deck segments together, the joint extrusions forming part of the bridge deck include a wearing surface dam on an upper surface thereof. The wearing surface dam acts as a separator between a wearing surface previously applied to the bridge deck surface prior to its splicing and a surface which receives the wearing surface after the joint is made in the field.

Abstract: An inspection apparatus for measuring the flange of a can prior to forming the flange into a radially outward directed flange includes a light generating element for generating generally parallel light rays of a light beam along an axis and a refractor for receiving the parallel light rays and separating the light rays into a first light beam and a second light beam. The first light beam propagates generally along the axis into the can and is reflected within the can to produce a lighted image of the inside edge of the flange. The second light beam propagates at an angle relative to the axis to illuminate and produce a lighted image of the outside edge of the flange. A video camera generates image data from the lighted images, and a data processor interprets the image data. The refractor includes an outer cylindrical member and an inner cylindrical member disposed in a cavity extending through the outer cylindrical member.

Abstract: A light-weight, corrosion-resistant, readily installed bridge deck is formed of modular deck panels spliced to each other on site. Each of the deck panels is shop-fabricated by longitudinally welding flanges of adjacently placed multi-void extruded aluminum alloy structural elements. Transfer splices of longitudinally adjacent elongate elements are made by providing shear elements connecting individual elongate structural elements of each deck panel end-to-end prior to longitudinal welding of adjacent elongate elements, with the end joints between the elongate elements being arrayed in a staggered manner. A safety rail system is mounted to run alongside and above outer edges of the finished bridge deck mounted to a system of support girders.

Abstract: A method of producing an AA7000 series aluminum alloy wrought product or plate includes a two step solution heat treating sequence wherein the aluminum plate is subjected to a first solution heat treatment at a first elevated temperature or temperatures for a first period of time, followed by a second solution heat treatment at a lower temperature or temperatures for a second period of time. The two step solution heat treating sequence results in vastly improved exfoliation corrosion resistance in the final aluminum wrought or plate product. An improved process for making aluminum alloy products in the T7751 Temper also is disclosed.