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| Number | Title | Issue Date |
| 7989028 | Continuously manufactured colored metallic products and method of manufacture of such products Metallic tube, pipe and conduit are made in a continuous process that includes a zinc galvanization stage, a first passivation stage, a second passivation stage and a third passivation stage. A colorant is added to the tube, pipe or conduit during the continuous man... | 08/02/2011 |
| 7367105 | Method and device for galvanizing objects A device and method for thermally galvanizing objects, in particular metal objects, includes pretreating an object for treating. The pretreated object is arranged in a flux bath for fluxing of the object and arranged in a zinc bath in order to have the material of t... | 05/06/2008 |
| 7244469 | Method of zinc plating and powder coating residential gas meter set assemblies The present invention is a method for zinc plating a meter set assembly used in gas delivery applications, wherein a zinc plating is applied to a steel substrate formed in the configuration of a meter bar. Once the zinc plating is applied through electrodeposition, ... | 07/17/2007 |
| 7241350 | Corrosion resistant poly-metal diffusion coatings and a method of applying same Diffusion metallic anticorrosive zinc-iron-aluminum coatings of iron and iron-based item surfaces, realized by heating of products at temperatures of 370–450° C. in a saturating powder mixture environment in a closed container. The coating compositions are multip... | 07/10/2007 |
| 6761936 | Method and installation for hot dip galvanizing hot rolled steel strip A method for hot dip galvanizing of hot-rolled steel strip, wherein in a first method step, the strip (50) is introduced into a pickling station (10-13) and a layer of scale and reaction products are removed from the strip surface in the pickling stati... | 07/13/2004 |
| 6419992 | Method of protecting articles having a bare ferrous base surface A zinc coating directly covers a bare ferrous base of parking meter housing parts. A non-epoxy thermosetting electrically insulating organic non-epoxy powder coating directly covers the zinc coating. The organic coating is directly applied to the zinc coa... | 07/16/2002 |
| 6372296 | High aluminum galvanized steel The present invention relates to galvanized steel having a high aluminum content in the coating, as well as a batch hot-dip galvanization process for making such steel. The galvanized steel herein has a coating comprising an inner layer of intermetallic i... | 04/16/2002 |
| 6335053 | Process for the continuous production by physical phase vapor deposition of coated metallic bands having a high corrosion resistance A process for the continuous production of coated metallic bands obtained by physical phase vapor deposition includes the following steps carried out on a band, eventually coated with zinc or its alloys, in motion and maintained in a vacuum environment: h... | 01/01/2002 |
| 6284122 | Production of a zinc-aluminum alloy coating by immersion into molten metal baths A process for non-continuous galvanization of a metal object with a Zn--Al alloy including the steps of pre-coating the object with a metallic layer of sufficient thickness to protect the object from oxidation and yet sufficiently thin to permit the pre-c... | 09/04/2001 |
| 6280535 | Manufacturing process on chromate-coated lead-containing galvanized steel sheet with anti-black patina property and anti-white rust property A production method for a lead-containing hot-galvanized chromated steel sheet with excellent resistance to blackening and white rust formation comprises: (a) plating a steel sheet in a hot-galvanizing bath containing 0.05-0.3 wt. % lead and 0.1-0.3 wt. %... | 08/28/2001 |
| 6277443 | Low lead or no lead batch galvanization process A batch process for making galvanized steel products with a low lead or no lead zinc coating is described. Metal parts are cleaned, rinsed, pickled and rinsed and are immersed in a hot, pre-flux solution and thoroughly dried before they are immersed in a ... | 08/21/2001 |
| 6270842 | Method of galvanizing with molten zinc-aluminum alloy A steel material subjected to preliminary treatments to remove an oxide film on the surface is immersed in a molten flux bath in an independent vessel and thereafter immersed in a molten zinc-aluminum alloy bath in a separate vessel to be galvanized with ... | 08/07/2001 |
| 6224692 | Process for galvanizing a metal strip A process for galvanizing a metal strip having a given area in a continuous galvanizing line through which the strip is run at a given speed comprising, in series, the steps of: (iii) pre-heating the metal strip; (iv) annealing the metal strip; (v) cooling the... | 05/01/2001 |
| 6217941 | Isocyanates modified for being provided with surfactant property, composition containing same, resulting coating The invention concerns a compound of formula (I) ##STR1## in which m is to 0 or 1 Iso is the (poly)isocyanate radical (after elimination of an isocyanate function); R10 is selected among: a negative charge; a hydrocarbon-based radical (i.e. a r... | 04/17/2001 |
| 6177140 | Method for galvanizing and galvannealing employing a bath of zinc and aluminum The present application discloses a method for hot-dip galvanizing and galvannealing which employs a bath of zinc and aluminum. Strips are immersed in the bath to produce substantially dross-free galvannealed and galvanized strips. The bath can have subst... | 01/23/2001 |
| 6093452 | Continuous hot-dip coating method and apparatus therefor A method for hot-dip coating a steel strip comprises: (a) continuously annealing the steel strip in an annealing furnace; (b) introducing the annealed steel strip into a molten metal coating bath through a snout; (c) dipping the annealed steel strip into ... | 07/25/2000 |
| 6080447 | Low etch alkaline zincate composition and process for zincating aluminum A method is provided for zincating aluminum substrates for metal plating thereon wherein the plated aluminum product has smoothness, dimensional integrity and increased production yield of the plated products. The substrates also have enhanced paramagneti... | 06/27/2000 |
| 6042892 | Apparatus for coating zinc on steel sheet, and method therefor An apparatus and a method for coating zinc on steel sheets for use on automobiles and electronic apparatuses are disclosed. A fluidized bed forming chamber is provided to fluidize zinc powders in carrying out a zinc coating on a heated steel sheet, so tha... | 03/28/2000 |
| 5891523 | Method for manufacturing metallized heat treated precision articles The invention provides a method for the metallizing of precision machine parts coupled with heat-treatment and machining to insure the minimal handling the remachining generally required due to dimensional distortion resulting from the standard heat-treat... | 04/06/1999 |
| 5872805 | Pot for coating continuous metallic strip A hot dip coating pot for containing a coating material in a liquid state. The coating pot comprises a substantially horizontal bottom and substantially vertical side walls. The bottom and the side walls define a first interior volume for containing the c... | 02/16/1999 |
| 5662969 | Hot coating by induction levitation A coating apparatus and method for applying a coating to a workpiece, comprising: a vessel to contain molten metal; an induction coil disposed about said vessel; and, temperature regulation means; wherein, in use, said induction coil induces a magnetic field within... | 09/02/1997 |
| 5616362 | Process and apparatus for the coating of metal A process for coating metal substrates including cleaning, degreasing and activating the substrate wherein a strongly adhering bonding agent layer is deposited on the substrate. The bonding agent layer comprises a thickness of aluminum. The bonding agent ... | 04/01/1997 |
| 5569543 | Method for coating a brake rotor and brake rotor A method and composition for coating an automotive brake rotor to render it corrosion resistant without impeding the braking function of the rotor, includes cleaning the rotor and thereafter applying a coating composition thereto which composition include... | 10/29/1996 |
| 5496588 | Method and apparatus for galvanizing linear materials A method and apparatus for continuous galvanizing of a linear element wherein controlled flow of molten zinc onto the linear element is effected through one or more nozzles, whereby galvanizing may be accomplished without immersion of the linear element i... | 03/05/1996 |
| 5399376 | Meniscus coating steel strip Method and apparatus for meniscus coating one or two sides of steel strip with a metal or metal alloy. The apparatus includes a horizontally disposed coating tray for containing molten coating metal, means for maintaining the temperature of the coating me... | 03/21/1995 |
| 5399211 | Method of plating steel Upon forming a plating coat on steel works, the works are held in a fluorine- or fluoride-containing gas atmosphere in a heated condition to thereby remove oxidized scales such as SiOx, MnOx and the like on the surface layer of the work and to form a fluo... | 03/21/1995 |
| 5354970 | Pot for batch coating of continuous metallic strip A hot dip batch coating pot for containing a coating material in a liquid state. The pot comprises a container portion having a horizontal bottom and vertical side walls, with the bottom and said side walls defining an interior volume for containing said ... | 10/11/1994 |
| 5339329 | Induction heated meniscus coating vessel A shallow vessel (50,52) for being horizontally disposed when containing a molten metal or metal alloy (66) for meniscus coating one side of a clean metal strip (34A) when the strip is moved vertically past one side of the vessel. The vessel includes a sh... | 08/16/1994 |
| 5284680 | Method for producing a galvanized ultra-high strength steel strip A method for producing ultra-high strength galvanized steel strip from a martensitic, plain carbon, steel strip which is pre-treated by induction heating rapidly or by fluxing, then hot dip galvanized and tempered, and then cooled to stop further temperin... | 02/08/1994 |
| 5133126 | Method of producing aluminum tube covered with zinc A method of producing an aluminum tube covered by a layer of zinc using a continuous cold forming machine which includes the steps of: providing an extrusion die having a heating device and an inert gas-blowing tube to the cold forming machine, introducin... | 07/28/1992 |
| 5128172 | Continuous coating process with inductive heating A continuous process for coating a series of workpieces with a metal coating comprises the steps of cleaning the workpieces with a high-pressure water system which utilizes particulates; isolating the workpieces in a non-oxidizing chamber; spraying the wo... | 07/07/1992 |
| 5032421 | Metal coating method This invention includes a method featuring steps having a transport (64, 68) to carry metal articles (10, 14) through a vacuum chamber (62, 66, 90) containing a plasma cleaning station (32) followed by exposure to an evaporant of metal (42) generated by a... | 07/16/1991 |
| 4878960 | Process for preparing alloyed-zinc-plated titanium-killed steel sheet having excellent deep-drawability There is disclosed a process for preparing alloyed-zinc-plated steel sheet having excellent deep drawability, which comprises adjusting the temperature of substrate steel sheet of titanium-killed steel essentially consisting of Cࣘ0.01%, Si | 11/07/1989 |
| 4657787 | Flow coating of metals Aluminum is flow-coated onto ferrous strip by reducing the hot strip in hydrogen, cooling it to 650°-680° C. in nitrogen and spraying molten aluminum on it such that the aluminum splats flow into each other but solidify in 0.2-0.5 seconds. The aluminum ... | 04/14/1987 |
| 4595600 | Metal cladding of wire by atomization spraying A method and apparatus for uniformly cladding a metal wire with a coating of a second metal is provided. The metal wire to be coated is preheated in a non-oxidizing atmosphere to a temperature slightly less than the melting point of the metal coating. The... | 06/17/1986 |
| 4588658 | Differentially coated galvanized steel strip A differentially coated, galvanized steel strip is produced by hot dip coating both sides of a steel strip and adjusting the weight of coating metal on opposite sides of the strip to produce a light coated side and a heavy coated side. The strip is then p... | 05/13/1986 |
| 4557953 | Process for controlling snout zinc vapor in a hot dip zinc based coating on a ferrous base metal strip A process for suppressing zinc vapor in the snout of a continuous line for hot dip coating one side or both sides of a ferrous base metal strip with a molten zinc or zinc based alloy by maintaining the atmosphere within the snout to include about 1-8% hyd... | 12/10/1985 |
| 4530858 | Process and installation for continuous manufacturing of an old (over-aged) steel band having a coating of ZN, Al or ZN-Al alloy The present invention relates to a continuous coating process by a layer of Zn, Al or of a Zn-Al alloy for a cold laminated steel band comprising a heating thermic cycle, followed by a rapid cooling, a tempered coating in the metal bath of coating in fusi... | 07/23/1985 |
| 4529628 | Method for the continuous coating of at least one portion of at least one of the faces of a metallic substrate The coating device comprises a furnace (1) comprising a crucible (4) and a lateral distribution conduit (3) whose outlet communicates with an externally open release aperture (2) serving to distribute the molten metal over the entire width of the metal st... | 07/16/1985 |
| 4500561 | Minimization of spangling on hot dip galvanized steel strip The molten exterior surface portion of a hot dip galvanized steel strip is solidified after the strip is withdrawn from a bath of molten zinc by spraying finely divided particles of a liquid nucleating agent for initiating solidification. The particles ar... | 02/19/1985 |
