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7875235 |
Method for batchwise heat treatment of goods to be annealed
A method is described for batchwise heat treatment of goods to be annealed which are heated in a heating chamber after scavenging air with a scavenging gas under protective gas to a predetermined...
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7730753 |
Lubricant for elevated temperature forming
The hot stretch forming of sheet metal alloys, such as highly deformable aluminum alloy materials, is improved by using a lubricant comprising bismuth between the forming tool and the engaged...
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7491278 |
Method of heat treating an aluminium alloy member and apparatus therefor
Disclosed is a method of heat treating an aluminum alloy member having a main surface, including the steps of (a) subjecting the member to a solution heat treatment (b) quenching the member and (c)...
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6689227 |
Eco-friendly starch quenchants
This invention relates to application of eco-friendly starch solution as a quenching medium for heated metal parts fabricated from steel, alloy steel, aluminum and aluminum alloys. Depending on the...
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6664019 |
Aluminum printing plates and method of making
A method of making improved aluminum printing plates comprising graining the aluminum plates, de-smutting them by treating them with nitric acid solution, then rinsing with hot water, acetating the...
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6548183 |
Metal-based composite material and method of producing the same
A metal-based composite material is formed by impregnating a matrix metal of Al or Al alloy into ores of a porous preform of a hydrogenatable metal having a metal hydride in at least a part of its...
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6368430 |
Process for quenching heat treatable metal alloys
The present invention is directed to a process comprised of a controllably variable liquid quenching means for metal alloys at or above the Leidenfrost temperature without metal alloy distortion.
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6355121 |
Modified etching bath for the deposition of a protective surface chemistry that eliminates hydrogen absorption at elevated temperatures
A method of controlling bulk absorption of atomic hydrogen and facilitating degassing of hydrogen from aluminum alloy workpieces during heat treatments in furnaces with ambient and/or...
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6270589 |
Method of manufacturing resin coated aluminum alloy plates for drawn and ironed cans
A method of manufacturing a resin-coated aluminum alloy sheet for drawn and ironed cans, which coated sheet can be subsequently formed into a drawn and ironed can without its wall breaking, and...
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6267826 |
Process for producing resin-coated aluminum alloy sheet for drawn/ironed cans
A method of manufacturing a resin-coated aluminum alloy sheet for drawn and ironed cans, which can be formed into a drawn and ironed can free from its wall breaking and having enough strength as a...
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6120618 |
Hydrocarbon phosphonic acid surface treatment that eliminates hydrogen absorption and enhances hydrogen degassing of aluminum at elevated temperatures
A method of controlling bulk absorption of atomic hydrogen and facilitating degassing of hydrogen from aluminum alloy workpieces during heat treatments in furnaces with ambient and/or...
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6066392 |
Al material excellent in thermal crack resistance and corrosion resistance
An Al material having an anodic oxidation film is provided that is excellent in gas and plasma corrosion resistance. By the present invention, a crack is not generated in the anodic oxidation film...
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6013142 |
Composition and process for preventing blistering during heat treating of aluminum alloys
Aluminum alloys that are susceptible to damage by High Temperature Oxidation during solution heat treatment are protected against such damage by a coating containing sodium fluoroborate and/or...
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5985059 |
Transition metal salt compositions that eliminate hydrogen absorption and enhance hydrogen degassing of metal and metal alloys
A method of controlling bulk absorption of atomic hydrogen and facilitating degassing of hydrogen from a metal or metal alloy workpiece during heat treatments in furnaces with ambient and/or...
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5785773 |
Process for avoiding stickers in the annealing of cold strip
When cold strip is annealed, diffusion welds, so-called stickers, frequently form on the strip surface. In order to avoid these, the cold strip, above 600° C. (holding time) is coated by oxidation ...
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5626689 |
Method of generating heat using catalytic material
This invention relates to a catalytic fuel composition capable of reducing pollutants in the combustion gasses generated upon combustion of the same. A catalytic material is combined with a liquid,...
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5431755 |
Method of and arrangement for thermal treatment of continuously moving metal bands
During thermal treatment of continuously moving metal bands more heat is supplied over a part of a treatment path to edge regions of the band per surface unit than to the center region of the band....
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5342455 |
In-situ generation of heat treating atmospheres using a mixture of non-cryogenically produced nitrogen and a hydrocarbon gas
A process for generating in-situ low-cost atmospheres suitable for annealing and heat treating ferrous and non-ferrous metals and alloys, brazing metals, sealing glass to metals, and sintering...
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5224983 |
Toughness enhancement of powder metallurgy zirconium containing aluminum-lithium alloys through degassing
A rapidly solidified zirconium containing aluminum lithium alloy powder consisting essentially of the formula Albal Lia Cub Mgc Zrd where "a" ranges from 2.1 to 3.4 wt %, "b" ranges from about 0.5...
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5154778 |
Lithium loss suppression in alloys using hydrogen atmosphere
The invention utilizes a hydrogen atmosphere during the heat treatment of an Al-Li alloy. The presence of such a reducing atmosphere prevents the reaction of surface lithium atoms with atmosphere...
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5045125 |
Case toughening of aluminum-lithium forgings
A component composed of a rapidly solidified aluminum-lithium alloy is subjected to thermal treatment at a temperature greater than 500° C. for a time period greater than 5 hours under a ...
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4969959 |
Methods for enhancing the thermal quenching of a metal surface
A method for enhancing the thermal quenching of a metal surface comprises treating the metal surface with a complex phosphate acid ester. The metal surface is simultaneously or subsequently treated...
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4968358 |
Vapor phase uphill quenching of metal alloys using fluorochemicals
Uphill quenching of metal alloys, such as aluminum alloys, is improved by conducting the heating step, after the quench-cooling step of the uphill quenching, using the elevated temperature vapor of...
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4826545 |
Method of heat treating metal parts using a washable synthetic quenchant
A method of quenching metal components utilizing a water based quenching composition which includes a polyvinylpyrrolidone polymer of high molecular weight and in relatively high concentrations and...
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4799976 |
Process for the heat treatment of Al alloys containing Li with a view to preserving their surface health
The invention relates to a process for improving the surface condition of Li-containing Al alloy products. According to the process, heating at a temperature exceeding 300° C. takes place in an ...
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4534807 |
Heat treatment of aluminium alloys containing lithium
The heat treatment of aluminium alloys having a lithium content in excess of 0.5% is carried out in an atmosphere of carbon dioxide and water vapor, the partial pressure of water vapor being at...
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4437904 |
Method for improved heat treatment of elongated aluminum alloy materials
A method and apparatus for heat treating and especially annealing of elongate metallic materials such as wire wherein the wire (24) given a longer length exposure to complete the heat treatment of...
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4391655 |
Treatment for the alleviation of high temperature oxidation of aluminum
High Temperature Oxidation (HTO) of aluminum subjected to heat treatment is controlled by exposing the aluminum surface to a metal chloride prior to heat treatment. Transition metal chlorides are...
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4325753 |
Process for degrease annealing thin strip and foil made of aluminum and aluminum alloys
On degrease annealing of thin strip and foil made of aluminum and aluminum alloys in an annealing furnace ozone is introduced into the furnace atmosphere.As a result of this the annealing time can...
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4243439 |
Process of quenching metal pieces and product produced
The invention concerns a new process for quenching metallic pieces and intended to limit the stresses engendered by quenching without essentially affecting the characteristics.This process consists...
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4200476 |
Process for the thermal treatment of thick products made of copper-containing aluminum alloys of the 7000 series
A process for the thermal treatment of a relatively thick product made of a copper-containing aluminum alloy of the 7000 series, the invention involving a solution heat treatment, quenching and...
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4161416 |
Production of aluminum wire
Aluminum 6201 alloy wire is produced by drawing solution-heat-treated rod down to wire of desired diameter, for winding onto spools, under conditions that deliver the wire to the spool at an...
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4087290 |
Process for the controlled cooling of ferrous metal
Austenitized ferrous metal, such as carbon steel, is quenched by means of an aqueous solution of a salt of polyacrylic acid which develops an extremely stable and uniform water vapor envelope...
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3928999 |
Process for treatment of coiled aluminum sheet
Damage to rolls in aluminum cold rolling mills is inhibited by a steam treatment applied to the lateral edges of coiled aluminum sheet as it emerges hot from the hot rolling mill.
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3915758 |
Surface hardening of aluminum alloys
This invention provides aluminum alloys which have a Vickers surface hardness of about 250 kg/mm2 to 1,400 kg/mm2. This invention also provides a process for preparing such aluminum alloys by...
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3865642 |
Water based quenching composition and method
A stable quenching composition comprised of an aqueous solution which contains dissolved therein: a water soluble polyvinyl alcohol resin, a solid water soluble polyoxyalkylene compound having a...
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3853637 |
METHOD OF TREATING ARTICLES UNDER DIFFERENTIAL VACUUM CONDITIONS WITH EXTERNAL GAS FLOW
The process of treating articles in a vacuum which includes placing the articles in a first enclosure which is fluidly connected to a second enclosure through a fixed or variable orifice. The first...
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3615907 |
METHOD OF ANNEALING AND CLEANING COILED METAL FOIL
Placing a tightly wound coil of metal foil in a vacuum furnace as it is received from a rolling mill with a film of rolling oil on its surfaces, subjecting it to a partial vacuum so as to increase...
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3554513 |
SYSTEM AND APPARATUS FOR QUICK QUENCHING CONTINUOUSLY HEATED STRIP
System and apparatus for quick quenching a continuously moving solution heat treated aluminum or aluminum alloy strip and the like in a substantially instantaneous fashion promptly after the strip...
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3526551 |
PROCESS FOR HEAT TREATING METALS
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3503596 |
CORROSION INHIBITION BY HEAT TREATMENT
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3498850 |
QUENCHING PROCESS
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3490958 |
HALOCARBON-METAL OXIDE COMBINATIONS IN HEAT TREATMENT OF METALS
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3746582 |
METHOD OF PRODUCING ANNEALED STRANDED CABLE
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3738919 |
TECHNIQUE FOR ADJUSTING TEMPERATURE COEFFICIENT OF RESISTANCE OF TANTALUM ALUMINUM ALLOY FILMS
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3600239 |
METHOD OF USING AND FOR FABRICATING LUTRASONIC BONDING GRADE ALUMINUM WIRE AND RESULTING PRODUCT
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3459605 |
METHOD OF ANNEALING ALUMINUM
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3429695 |
HIGH STRENGTH ALUMINUM ALLOY AND ITS PRODUCTION METHOD
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3416977 |
Cryogenic cooling
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3414406 |
Aluminium alloys and articles made therefrom
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