| Mitsubishi-Hitachi Metals Machinery, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110174869 | JOINING METHOD OF HIGH CARBON STEEL FOR ENDLESS HOT ROLLING AND THE APPARATUS THEREFOR - An endless hot rolling material shear-joining method capable of threading hot rolling materials in a finish rolling process without strip breakage by controlling joining conditions for the hot rolling materials in an endless hot rolling process for high carbon steel, and an endless hot rolling plant therefor are disclosed. The shear-joining method for endless hot rolling materials of high carbon steel includes shear-joining high carbon steel metal bars comprising, in terms of weight %, 0.30% to 1.20% C, inevitable impurities, and balance Fe, or comprising 0.15% to 1.5% C containing at least one of Cr, Ni, Mo, V, Ti, W, B, Nb, and Sb, inevitable impurities, and balance Fe, such that a joined surface of the joined metal bars is formed to be inclined in a thickness direction of the metal bars, in a hot rolling plant by a joiner adapted to join the metal bars after overlapping tail part of a leading one of the metal bar and top part of a trailing metal bar. | 07-21-2011 |
| 20110163074 | METAL PLATE JOINING METHOD AND APPARATUS - A pair of upper and lower pressure rollers | 07-07-2011 |
| 20110120979 | MASH SEAM WELDING METHOD AND APPARATUS - A pair of upper and lower electrode wheels | 05-26-2011 |
| 20110113847 | CLUSTER-TYPE MULTISTAGE ROLLING MILL - A cluster-type multistage rolling mill includes: a top inner housing housing a top roll group; a bottom inner housing housing a bottom roll group; an entry-side outer housing provided at entry sides of the inner housings and having an opening portion which a strip is allowed to pass through; a delivery-side outer housing provided at delivery sides of the inner housings and having an opening portion which the strip is allowed to pass through; sets of pass line adjusters provided in upper portions of the opening portions, and pressing an entry-side pressing portion and a delivery-side pressing portion of the top inner housing, respectively; and sets of roll gap controlling cylinders provided in lower portions of the opening portions, and pressing an entry-side pressing portion and a delivery-side pressing portion of the bottom inner housing, respectively. | 05-19-2011 |
| 20110005290 | ROLLING MILL AND TANDEM ROLLING MILL HAVING THE SAME - A rolling mill, which can use work rolls of a smaller diameter for rolling a hard material and a thin strip material, and can obtain strips of high product quality with high productivity, is provided. For this purpose, a six-high rolling mill includes upper and lower work rolls ( | 01-13-2011 |
| 20100282161 | GAS WIPING APPARATUS - In a gas wiping apparatus for blowing a gas on the front side and the back side of a strip, which exits from a hot-dip plating bath and travels upward, from wiping nozzles to adjust the amount of a plating deposit, the wiping nozzles are supported to be linearly movable beyond the width of the nozzles in the plate width direction of the strip. | 11-11-2010 |
| 20100224120 | GAS WIPING APPARATUS - In a gas wiping apparatus which blows gas through a wiping nozzle onto front and rear surfaces of a steel plate going out from a molten metal coating pot and running upward and which thereby controls a deposit mass, the wiping nozzle is separated into upper and lower lips, blocking faces partially closing a gas supply channel are formed in the upper and lower lips at vertically different positions on the opposite sides from each other in a gas outlet width direction, and the upper and lower lips are provided in such a manner as to be movable in a width direction of the steel plate. | 09-09-2010 |
| 20100175848 | TWIN-ROLL CONTINUOUS CASTER - In a twin-roll continuous caster configured to cast molten steel supplied to a molten metal pool between cooling rolls into a cast piece by, for example, cooling and solidifying the molten steel on the surfaces of the cooling rolls, the pair of cooling rolls each have ridges on the surface thereof, and cast-piece edges and a cast-piece central portion are generated. Specifically, the cast-piece edges are generated by pressing and bonding lateral edges of one of solidified shells to lateral edges of the other solidified shells, the lateral edges of the solidified shells being produced by cooling and solidifying the molten metal on surfaces of collars provided at lateral end portions of the cooling rolls. The cast-piece central portion contains the unsolidified molten steel between the solidified shells and is generated by cooling and solidifying the molten steel on the surfaces of the laterally central portions of the cooling rolls. | 07-15-2010 |
| 20100101751 | TWIN-ROLL CONTINUOUS CASTING MACHINE AND ROLLING EQUIPMENT - A twin-roll continuous casting machine comprises: a moving mechanism for moving, relative to one roll, another roll; a plurality of upper side support rolls for supporting the one-roll side of a cast slab separated from the one roll and withdrawn; and a plurality of lower side support rolls for supporting the other-roll side of the cast slab pulled out from the clearance between both rolls. The upper side support rolls are rotatably supported by first bearers, while the lower side support rolls are rotatably supported by second bearers having a force for urging the lower side support rolls toward the cast slab. The cast slab is transported, with an upper surface portion of the cast slab pulled out from the clearance between both rolls serving as a reference surface. | 04-29-2010 |
| 20100064749 | COLD ROLLED MATERIAL MANUFACTURING EQUIPMENT AND COLD ROLLING METHOD - Cold rolled material manufacturing equipment comprises: an unwinding device ( | 03-18-2010 |
| 20090191360 | STRIP CROSSBOW REDUCTION AND STRIP VIBRATION REDUCTION METHOD AND HOT DIP COATED STRIP MANUFACTURING METHOD USING THE STRIP STABILIZATION METHOD - Provided is a strip crossbow reduction and vibration reduction method (strip stabilization method) including of controlling an exciting current to an electromagnet based on a distance to a strip being conveyed, the first distance being detected by a displacement sensor, and performing crossbow reduction and vibration reduction on the strip by means of an electromagnetic force of the electromagnet. The method is characterized in that the exciting current applied to the electromagnet is controlled based on the distance and a target position corresponding to the distance, and that the exciting current is applied to the electromagnet when the strip is present within detectable range of the displacement sensor whereas the exciting current is not applied to the electromagnet when the strip is not present within the detectable range of the displacement sensor. | 07-30-2009 |
| 20090139685 | CONTINUOUS CASTING APPARATUS AND CONTINUOUS CASTING METHOD - A continuous casting apparatus having a pair of drums rotating in opposite directions, and bearing housings for rotatably supporting drum shafts protruding from opposite end surfaces of the drums,
| 06-04-2009 |
| 20090133629 | IN-LINE FILM-FORMATION APPARATUS - Provided is an in-line film-formation apparatus including: deposition sources, deposition-preventing plates, and a screen. The deposition sources store different film-formation materials, and include openings extending in the width directions of a substrate, which is perpendicular to the conveying direction. The openings, arranged in parallel with each other, are disposed respectively on the upstream and the downstream sides in the conveying direction. The plates, partitioning a co-deposition chamber from adjacent deposition chambers and placed, in parallel to each other, on the upstream and the downstream sides in the conveying direction, limit a deposition region of the vapor from the openings. The screen limits and makes the deposition regions of the substrate for vapor from openings coincide with deposition regions limited by the plates. Thereby, the formation of a mono-content film is prevented and only the mixed film is formed on the substrate. | 05-28-2009 |
