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| Number | Title | Issue Date |
| 7077724 | Sheet metal scale removing water jet process An apparatus and method of removing scale from the surfaces of processed sheet metal employs high pressure jets of water directed from nozzles positioned in close proximity to the sheet metal surfaces. ... | 07/18/2006 |
| 6890665 | Martensitic stainless steel and method for manufacturing the same Martensitic stainless steel whose steel composition is restricted within a specific range for each element is provided. The scale layer formed on the surface of the base material consists of an inner layer scale mainly including FeCr2O4 and an ... | 05/10/2005 |
| 6854169 | Method for the descaling of metal A method and apparatus for the descaling of metal surfaces without the use of caustic substances is provided. The apparatus includes a first and second blast heads containing fan shaped nozzles that spray high velocity jets of smooth edged, ceramic media at a scale ... | 02/15/2005 |
| 6389666 | Method of and apparatus for descaling of surfaces having oscillation marks of cast billets produced by a continuous casting machine A method of descaling surfaces having oscillation marks of cast billets produced by a continuous casting process an reduced in a hot strip train including an equalizing furnace and a plurality of rolling mill stands, with the cast billets being delivered ... | 05/21/2002 |
| 6385832 | Descaling device for a continuous cast metal strip A descaling device for hydromechanically descaling metal strip has a descaling spray arrangement with first and second spray nozzles arranged adjacent to one another in first and second spray nozzle rows transverse to the transport direction with several ... | 05/14/2002 |
| 6119323 | Apparatus for the descaling of rolled metal stock Structural shapes are descaled with water or air jets from a distributor beam in the form of a tube bundle extending across the path of the structural shape and rotatable to juxtapose a selected nozzle array with the structural shape. The nozzle arrays on... | 09/19/2000 |
| 5389761 | Method and apparatus for cleaning metal pieces prior to resistive seam welding or laser lap seam welding An apparatus comprises a current source, first and second wheels through which a current from the current source selectively flows, and a source of gas, wherein the first and second wheels receive first and second pieces of metal having overlapping portio... | 02/14/1995 |
| 5131126 | Method for descaling hot-rolled stainless steel strip A descaling method for removing oxide scale from a hot-rolled stainless steel strip. A solution of an alkaline earth metal chloride is applied to the surface of the oxide scale layer formed on the hot-rolled stainless steel strip, and the solution is allo... | 07/21/1992 |
