Abstract: The invention relates to a sandwich material for brazing comprising a core layer of a first aluminum alloy and a barrier layer of a second aluminum alloy characterized by that: the first alloy, constituting the core layer contains (in weight %): 0.8-2% Mn, ?1.0% Mg, 0.3-1.5% Si, ?0.3% Ti, ?0.3% Cr, ?0.3% Zr, ?1.3% Cu, ?0.5% Zn, ?0.2% In, ?0.1% Sn and ?0.7% (Fe+Ni), the balance consisting of Al and ?0.05% of each of the unavoidable impurities, and that the second alloy, constituting the barrier layer contains (in weight %): ?0.2% Mn+Cr, ?1.0% Mg, ?1.5% Si, ?0.3% Ti, ?0.2% Zr, ?0.3% Cu, ?0.5% Zn, ?0.2% In, ?0.1% Sn and ?1.5% (Fe+Ni), the balance consisting of Al and ?0.05% of each of the unavoidable impurities, The invention also concerns a method for the manufacture of the sandwich material, a brazed product, such as a heat exchanger comprising the sandwich material and the use of the brazed product at high and low temperatures.

Abstract: Maraging steel compositions, methods of forming the same, and articles formed therefrom comprising, by weight, 15.0 to 20.0% Ni, 2.0 to 6.0% Mo, 3.0 to 8.0% Ti, up to 0.5% Al, the balance Fe and residual impurities. The composition may be a first layer of a composite plate, and may have a second layer deposited on the first layer, the second layer having a composition comprising, by weight, 15.0 to 20.0% Ni, 2.0 to 6.0% Mo, 1.0 to 3.0 Ti, up to 0.5% Al, the balance Fe and residual impurities. The first layer may have a hardness value ranging from 58 to 64 RC, and the second layer may have a hardness value ranging from 48 to 54 RC. The first layer may be formed employing powdered metallurgical techniques. Articles formed from the compositions include armored plate.

Abstract: Disclosed is a multilayered steel composite which compatibly achieves properties such as strength and ductility that are incompatible in conventional steels and is excellent in strength, ductility, weldability, toughness and fatigue strength. Also, disclosed is a method for producing the multilayered steel which is produced by rolling with least two kinds of steels having different chemical compositions and microstructure or different mechanical properties, in combination.

Abstract: The invention relates to an antifriction composite comprising a metal support layer, an intermediate layer produced from an aluminum alloy and a bearing layer produced from an aluminum alloy. The components of the aluminum alloys of the intermediate layer and the bearing layer are identical except for an additional soft phase portion in the bearing layer. Said soft phase portion may include lead, tin and/or bismuth. The invention also relies to a method for producing the inventive antifriction composite.

Abstract: A method of producing an aluminium alloy brazing sheet for the manufacturing of light brazed assemblies, wherein said brazing sheet has good formability, combined with a low susceptibility to core penetration in the end annealed as-produced condition after stretching, forming and/or shaping and brazing are disclosed. Assemblies made according to the method are also disclosed.

Abstract: The present invention a high strength aluminium alloy brazing sheet, comprising an Al—Zn core layer and at least one clad layer, the core layer including the following composition (in weight percent): Zn 1.2 to 5.5 Mg 0.8 to 3.0 Mn 0.1 to 1.0 Cu <0.2 Si ?<0.35 Fe <0.5 optionally one or more of: Zr <0.3 Cr <0.3 V <0.3 Ti <0.2 Hf <0.3 Sc <0.5, the balance aluminium and incidental elements and impurities. The clad layer includes an Al—Si based filler alloy and is applied on at least one side of the core layer. The invention relates furthermore to a brazed assembly including such brazing sheet, to the use of such brazing sheet and to method for producing an aluminium alloy brazing sheet.

Abstract: Cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multi-layered composite metal having a layer of stainless steel roll bonded at or near the core of the composite. The stainless layer is roll bonded to layers of aluminum which, in turn, is roll bonded to layers of stainless steel or aluminum. The layer of stainless steel adjacent to the cooking range may be a ferromagnetic grade of stainless steel if induction-type heating is desired. The cookware may include a non-stick surface applied thereto.

Abstract: Cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multi-layered composite metal having a layer of titanium roll bonded at or near the core of the composite. The titanium layer is roll bonded to layers of aluminum which, in turn, is roll bonded to layers of stainless steel. The layer of stainless steel adjacent to the cooking range may be a ferritic stainless steel if induction-type heating is desired. The multi-layered composite is also suitable for making a sole plate for an iron. Both the cookware and sole plate may include a non-stick surface applied thereto.

Abstract: With an Al—Cu bonded structure, an Ag layer can be remained at the Al—Cu bonding interlayer providing ductile deformation behavior and a tensile strength at the bonded interlayer similar to that of the Al base material. This results in superior bonding characteristics. Furthermore, a thin Al—Cu bonded structure can be obtained as a result of using the Al—Cu dissimilar material bonded section, which has superior workability, as the base material to perform rolling for wall-thickness reduction. The thin Al—Cu structure has superior dimensional accuracy and can meet diverse dimensional demands. The structure combines the light weight of Al with its particular heat transfer and heat dissipative characteristics and anti-corrosive properties of Cu, allowing it to meet the compact, thin, light-weight, and high-performance needs of electronic devices. The structure can be widely used in heat exchanges and heat transfer devices.

Abstract: The present invention relates to a color cathode ray tube provided with a pressed-type shadow mask. As material for constituting the shadow mask 6, a single plate body made of a composite gradient alloy plate consisting of three layers 6A, 6B, 6C or more in which an alloy element has the concentration gradient which is continuously changed from one surface to the other surface is used. The present invention can realize a pressed mask having a large radius of curvature by self-correcting the thermal deformation such as a doming or the like.

Abstract: This invention describes the roll bonding of Al and Ni-bearing Cu alloys to suitable substrates to produce self-brazing materials for the elevated temperature, aggressive environment application. The Al and Ni-bearing Cu alloy for the self-brazing layers can be obtained by cladding layers of elemental Ni and Al to Cu. The Al content in the self-brazing layers can be varied from 2 to 100%. The Ni content in the self-brazing Cu alloy can be varied from 10 to 100%. Additional alloying elements in the commercial Cu alloys such as Fe, Cr, Si, Mn, Sn and Zn are unavoidable. Trace elements in the commercial alloys such as Pb, Ag and As will also affect the brazing and shall be reduced.

Abstract: A method for producing titanium alloy brazing strips and the resulting brazing strips and/or foils. The method uses a cold-rolling process without annealing to generate a titanium based multi-layer alloy strip or foil made up of discrete layers of titanium and an additional layer or layers of one or more metals, such as nickel and/or copper, for example, or alloys thereof, with the layer of titanium roll bonded without annealing to the layers of the additional metal(s). The resulting strip or foil can include, for example, Cu/Ti/Cu, Ni/Ti/Ni, and Ni/Ti/Cu, and also, for example, Cu/Ni/Ti/Ni/Cu, and Ni/Cu/Ti/Cu/Ni, among other combinations. The resulting strip or foil can be used for brazing, creating an alloy of the weight percentage of the original materials.

Abstract: Cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multi-layered composite metal having a layer of titanium roll bonded at or near the core of the composite. The titanium layer is roll bonded to layers of aluminum which, in turn, is roll bonded to layers of stainless steel. The layer of stainless steel adjacent to the cooking range may be a ferritic stainless steel if induction-type heating is desired. The multi-layered composite is also suitable for making a sole plate for an iron. Both the cookware and sole plate may include a non-stick surface applied thereto.

Abstract: An efficient and effective process for manufacturing of hardened aluminum components is achieved by coordinating the material preparation steps with the forming steps. The resulting product is a hardened aluminum component with desirable strength characteristics. The process includes initial heating of sheet material in order to prepare it for further processing. The sheet material is then quenched to promote appropriate material conditioning. A product forming sub-process is then undertaken in a relatively short period of time following the quenching. The product forming is done while the material is in a relatively ductile condition, thus easing forming operations, and avoiding product spring-back problems. Lastly, the component is naturally aged, to provide the final hardening operations. The resulting product has very desirable strength characteristics, due to the combined forming and hardening process.

Abstract: The instant invention is directed to a bonded product, such as a manifold, for gas or liquid chromatographs, and a method for making the same. The bonded product is made using the following steps: (i) contacting two or more steel sheets; (ii) heating the contacted sheets to a temperature substantially below the melting temperature of the sheets; (iii) applying pressure to the contacted sheets; and (iv) cooling the contacted sheets. No intermediate foreign material is used to bond the steel sheets, e.g., no welding material or TLP diffusion bonding plate is utilized. Nonetheless, a strong, leak free bond is generated at temperatures as low as 1700° F. (926.6° C.). The bond is molecular in nature, as evidenced by grains that grow from one sheet to another across the interface between the two sheets.

Abstract: An object of the present invention is to provide a cladding material, which has high joining strength and excellent productivity, and a manufacturing method therefor; in order to attain this object, the present invention provides a cladding material comprising: a first material to be joined which is made of aluminum or an aluminum alloy; a second material to be joined which is made of a single metal or an alloy and which is join the first material to be joined; and an intermediate layer which is provided between the first and second materials to be joined.

Abstract: A wiring layer transfer composite constituted by a laminate composed of a carrier layer, a barrier layer and a wiring-forming layer, the barrier layer being a continuous layer substantially free from defects, can be produced by (a) preparing a first Cu-based metal foil having an average thickness of 50 &mgr;m or less and an average surface roughness Rz of 5 &mgr;m or less in both surfaces for the carrier layer; (b) preparing a second Cu-based metal foil having an average thickness of 20 &mgr;m or less and an average surface roughness Rz of 5 &mgr;m or less in both surfaces for the wiring-forming layer; (c) vapor-depositing a metal having different etchability from that of Cu onto at least one of the first metal foil and the second metal foil to form the barrier layer having an average thickness of 1 &mgr;m or less; and (b) pressure-welding both metal foils via the barrier layer.

Abstract: A ceramic metal matrix composite and copper material having a layer of ceramic metal matrix composite such as aluminum silicon carbide (Al—SiC) bonded to a layer of metal such as copper useful for forming heat-dissipating components for microelectronics concerned with lightweight, high stiffness, high thermal conductivity and compatible thermo expansion characteristics. The clad material may be formed from plurality of sucessive layers of composite and metal. The material is formed by rolling an extruded strip of Al—SiC with the metal layer. Alternately, an interim layer of aluminum, aluminum silicon or other bond-enhancing material is clad to the metal layer prior to rolling it with the composite. The interim layer is thought to form a stronger bond with the exposed aluminum matrix portion of the composites layer.

Abstract: A 5-ply composite metal product for the manufacture of cookware is provided which contains a relatively thick copper core having relatively thin layers of pure aluminum bonded between outer layers of stainless steel. The cooking vessels made therefrom may contain a decorative groove or skived ring around a perimeter of the vessel, formed by machining away the outer layers of stainless steel and pure aluminum to visually expose the copper core.