JP STEEL PLANTECH CO. Patent applications |
Patent application number | Title | Published |
20150306648 | LEVELER EQUIPMENT AND SHEET MATERIAL FLATTENING METHOD - Leveler equipment includes a leveler body, a first roll cassette for a roller leveler, and a second roll cassette for a tension leveler. The roller leveler is formed when the first roll cassette is attached to the leveler body, and the tension leveler is formed when the second roll cassette is attached to the leveler body. | 10-29-2015 |
20150128675 | ROLLER LEVELER AND PLATE FLATTENING METHOD USING THE SAME - A roller leveler includes: a leveling roll unit having a plurality of leveling rolls configured to rotate so as to pass a plate while sandwiching and pressing the plate; a pushing cylinder provided at each of an entrance side and a discharge side of the leveling roll unit, at which the plate enters and is discharged, respectively, and configured to press the plate via the leveling rolls; and a driving mechanism configured to rotate the leveling rolls to pass the plate. At least one of the plurality of leveling rolls has a stepped structure, including a lateral center portion with a large diameter, corresponding to a center portion of the plate with respect to a plate width direction, and lateral end portions with a small diameter, corresponding to edge portions of the plate with respect to the plate width direction. | 05-14-2015 |
20150013418 | ROLLER LEVELER AND SHEET-MATERIAL FLATTENING METHOD - A roller leveler for flattening sheet material includes: a leveling roll unit that has a plurality of leveling rolls configured to rotate so as to pass the sheet material while sandwiching and pressing the sheet material interposed therebetween; pushing cylinders configured to press the sheet material via the leveling rolls and provided on each of an entrance side and a discharge side of the leveling roll unit, on which the sheet material enters and is discharged into and from the leveling roll unit, respectively; and a driving mechanism configured to rotate the leveling rolls to pass the sheet material, wherein the plurality of leveling rolls are designed so that a diameter thereof satisfies a relation, 0.501-15-2015 | |
20130327111 | ROLLER LEVELER AND METAL SHEET FLATTENING METHOD - A roller leveler for flattening a metal sheet or plate having a cut-sheet form includes leveling rolls disposed in a staggered state on upper and lower sides of a pass line and configured to sandwich and flatten the metal sheet while pressing it therethrough, a hydraulic pressing cylinder for pressing the metal sheet via the leveling rolls, intermediate rolls set in contact with the respective leveling rolls from outside and larger in diameter than the leveling rolls, and a drive unit for rotating the intermediate rolls. The roller leveler causes the drive unit to rotate the intermediate rolls and transmits the driving force to the leveling rolls to pass the metal sheet while causing the pressing cylinder to press the metal sheet via the leveling rolls. | 12-12-2013 |
20130327109 | ROLLER LEVELER AND METAL SHEET FLATTENING METHOD - A roller leveler for flattening a metal sheet or plate having a cut-sheet form includes leveling rolls disposed in a staggered state on upper and lower sides of a pass line and configured to sandwich and flatten the metal sheet while pressing it therethrough, a hydraulic pressing cylinder configured to press the metal sheet via the leveling rolls, a drive unit configured to rotate the leveling rolls, and a pinch roll unit disposed on one side of a leveling roll array area and including a pair of pinch rolls. The pressing cylinder presses the metal sheet via the leveling rolls with a pressing amount necessary for flattening the metal sheet, while the metal sheet is passed by a drawing force applied by the pinch rolls and a driving force applied by the drive unit. | 12-12-2013 |
20120320941 | WASTE HEAT RECOVERY STRUCTURE FOR STEEL MAKING ELECTRIC ARC FURNACES, STEEL MAKING ELECTRIC ARC FURNACE FACILITY, AND WASTE HEAT RECOVERY METHOD FOR STEEL MAKING ELECTRIC ARC FURNACES - A waste heat recovery structure includes a first exhaust gas flow path provided to each of steel making electric arc furnaces to discharge exhaust gas thereinto; a waste heat boiler disposed on the first exhaust gas flow path to recover waste heat as saturated steam from exhaust gas; a steam accumulator configured to store steam formed by confluence of saturated steam parts, each generated by the waste heat boiler; a steam super heater configured to turn steam into superheated steam by heating; a second exhaust gas flow path configured to lead exhaust gas from the waste heat boiler to the steam super heater to use it for superheating; a third exhaust gas flow path configured to discharge exhaust gas from the waste heat boiler not through the steam super heater; and a switching device configured to switch flow paths between the second and third exhaust gas flow paths. | 12-20-2012 |
20120292835 | PUSHER - A pusher includes a pusher main body configured to push forward a target object; a pusher main body cylinder connected to the pusher main body and configured to move the pusher main body forward and backward; a pusher carriage connected to the pusher main body cylinder; and a pusher carriage cylinder connected to the pusher carriage and configured to move the pusher carriage forward and backward, the pusher carriage cylinder having a pushing-out direction opposite to a pushing-out direction of the pusher main body cylinder. | 11-22-2012 |
20120261251 | SYSTEM FOR TRANSPORTING RED-HOT COKE - A system for transporting red-hot coke including a non-rotary coke receiving car which travels on a first rail for receiving coke from at least one coke oven chamber; at least two rotary coke buckets, the at least two rotary coke buckets being mounted on a turntable, wherein the turntable is operable to orbit the at least two rotary coke buckets around its center, and the turntable travels along a second rail; one or two sets of discharge devices, each containing a discharge chute and a dust collector hood, which is operable to discharge the coke from the non-rotary coke receiving car to the at least two rotary coke buckets; and a hoist for hoisting and transporting the at least two rotary coke buckets to a coke dry quenching unit. | 10-18-2012 |
20120152057 | ELECTRIC ARC MELTING FACILITY AND METHOD FOR PRODUCING MOLTEN METAL BY USING THE ELECTRIC ARC MELTING FACILITY - An electric arc melting facility includes a melting chamber configured to melt a source iron therein by electric arc discharge generated from an electrode, and a source iron feeder configured to continuously feed the source iron to the melting chamber. The facility further includes a state change detector configured to detect a state change of the melting chamber when the electric arc discharge is generated from the electrode, and a controller configured to adjust a feed rate at which the source iron feeder feeds the source iron to the melting chamber, based on a detection result of the state change detectors. | 06-21-2012 |
20120125152 | ELECTRIC ARC MELTING FACILITY AND METHOD FOR PRODUCING MOLTEN METAL BY USING ELECTRIC ARC MELTING FACILITY - An electric arc melting facility includes a melting chamber configured to melt a source iron therein by an electrode, and a shaft-shaped preheating chamber directly connected to the melting chamber. The preheating chamber includes a bottom surface inclined downward toward the melting chamber. A shaft opening dimension is set to an optimum value for controlling the supply of the source iron. A pushing device is disposed at a lower side of the preheating chamber and configured to move the source iron toward the melting chamber. The supply of the source iron from the preheating chamber to the melting chamber is performed by operating the pushing device. The supply of the source iron from the preheating chamber to the melting chamber is stopped by halting the operation of the pushing device. | 05-24-2012 |
20120103047 | ROLLER LEVELER - A roller leveler is provided having a substantially uniform pitch of leveling rolls arranged in a zigzag manner. The roller leveler is provided with a first roll group having first leveling rolls arranged with a pitch “P | 05-03-2012 |
20110168352 | AIR SUPPLY APPARATUS AND COOLING FACILITY FOR HOT GRAIN/LUMP MATERIAL PROVIDED WITH THE AIR SUPPLY APPARATUS - An air supply apparatus includes a plurality of movable carriages arranged along a circular carriage path; a movable circular duct arranged along the carriage path and connected to each of the carriages through a connection air duct; a water sealing device including a circular water seal chamber arranged along the carriage path and a water sealing plate having a lower end part thereof sunk in sealing water in the circular water seal chamber; a stationary circular duct arranged along the carriage path and fitted into the movable circular duct through the water sealing device to be freely movable, wherein the movable circular duct and the stationary circular duct form a circular air path; and an atmospheric zone that stops leakage of air in the carriage being provided in a predetermined position of the carriage path, wherein an upper space of the circular water seal chamber on a circular air path side communicates with the circular air path on a movable circular duct side, the circular air path on the movable circular duct side communicates in a circumferential direction, and a connection air duct closing mechanism that closes the connection air duct is provided in the atmospheric zone. | 07-14-2011 |
20100232913 | Equipment and Method for Tansporting Red-Hot Coke - Equipment and a method for transporting red-hot coke are provided, which do not need increase in size of a hoist, reinforcement of a CDQ system, and the like, even when the amount capacity of a coke bucket does not correspond to an amount equivalent to the coke amount from one oven chamber. In particular, transporting equipment for red-hot coke, includes: a non-rotary coke receiving car for receiving coke out of a coke oven; a coke bucket for receiving the coke discharged from the coke receiving car; a transporting device for transporting the coke bucket to a hoist position; and a hoist for transporting the coke bucket to a coke dry quenching system. | 09-16-2010 |
20090217728 | Roll, Rolling Mill and Rolling Method - To provide a roll, a rolling mill and rolling method capable of not only effectively correcting the plate crown of a material to be rolled but also reducing the edge drop and preventing a roll from damage caused by the increase of the local line pressure between the rolls. | 09-03-2009 |