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JP2007105740 |
To provide a method of wet-type skin pass rolling, which method can prevent the fracture of plates due to defective shapes and the erroneous recognition of the fracture of plates, and can stably carry out the rolling operation, and furth...
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JP2007100217 |
To provide a roller effective for conveying a hot material, which is excellent in build-up resistance even when used in an elevated-temperature atmosphere, e.g. in a heat-treatment furnace.The roller has a metal-carbide composite film co...
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JP2007098431 |
To provide a winding/centering device of hot-rolling equipment with which occurrence of troubles such as miss roll is reduced by preventing a steel sheet from running on to a side guide.The steel sheet is prevented from lifting by pressi...
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JP2007098469 |
To provide a device for raising and retaining a preceding steel material to be rolled, which does not require a large space for installation and can be used to adequately raise the preceding steel material placed on a transfer table to a...
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JP2007098468 |
To provide hot-rolling equipment and a hot-rolling method using the same by which the efficiency of rolling is improved by reducing the idle time of a hot-rolling mill even when a controlled rolled material which is required to wait for ...
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JP3943746 |
To provide a guide device for shape rolling mill capable of achieving size-free rolling and effectively performing roll change of a rolling mill, periodic maintenance, countermeasure at the time of causing misroll or the like. Upper and ...
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JP3941699 |
To prevent a stock to be rolled from being touched or slid by fixed aprons and center guide rolls installed at the central area in the crosswise direction of the metal stock to be rolled of a width reducing device which reduces the width...
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JP2007092180 |
To provide a method for restraining the buildup on a roller for carrying a high temperature material, excellent in an effective buildup resistance, even in the case of use under high temperature atmosphere, such as in the heat treatment ...
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JP3935568 |
To provide a nose piece in a manner that it is closely approachable to a roll and usable even if the install space in the left and right widthside is limited. A pair of roller holders 2 supporting a main guide rollers 4 via a roller pin ...
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JP3928314 |
To precisely predict an extracting time (heating time) in a heating furnace to continuously heat a steel and to precisely heat a slab to a temperature suitable for rolling by saving energy. By comparing a pitch tp(a) of the predictable e...
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JP3929147 |
To provide a winding apparatus by which a strip rolled to a prescribed thickness on the outlet side of a finishing mill and joined can be cut and wound by down-coilers, to manufacture product coils in the endless rolling of hot rolling j...
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JP3925789 |
To provide a cooling method for a thick steel plate which prevents the buckling of the steel plate and destruction of equipment and produces a flat steel plate continuously and stably without C or L shaped curling. A gap between an upper...
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JP3927536 |
To enhance productivity in a continuous hot rolling line of a steel strip or the like, and to suppress degradation of productivity as the speed is reduced when performing the treatment such as heating and descaling by reducing the transp...
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JP3926790 |
To provide a method and a device for guiding a steel material when rolling a bar in which a hot steel material while rolling a bar can reasonably and stably be guided to different lines separate in the height direction and the transverse...
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JP3924649 |
To execute the highly accurate tension control by estimating the tension just near a bridle roll at the existing side of the other equipment and deciding the loading tension in each roll constituting the bridle rolls based on this estima...
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JP2007054852 |
To provide a guiding device 26 with which the reciprocating rolling of bar steel is possible without generating appearance defect.This guiding device 26 is provided with the main body 28, fixing shafts 30 and a pair of side-part guiding ...
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JP2007050430 |
To make the service life of a roll for continuous casting longer than that of conventional ones by minimizing the unevenness on the surface of a roll body even if the roll is repeatedly used.The roll body 3 of the roll for continuous cas...
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JP2007046131 |
To enable obtaining as higher productivity as possible without damaging a treating ability as more than necessary, by assuming the danger ratio related to a meandering amount and a production obstacle in a strip, based on a shaping index...
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JP2007044706 |
To provide a method of manufacturing a steel material having excellent surface property capable of effectively reducing the generation ratio of scab which cannot be reduced by a conventional countermeasures.In the method of manufacturing...
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JP3915556 |
To provide a method for traversal movement of a rolled stock capable of preventing billets from generating bruises in caliber rolling, and especially to provide a method for arranging the rolled stock opposite to the caliber without easi...
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JP2007038299 |
To provide a cooling system for the hot-rolled steel strip for stably strongly cooling even a steel strip having no tension on a runout table from the final finishing mill to a coiler, and to provide its cooling method and the manufactur...
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JP3914674 |
To take a measure by judging conveying anomaly of a rolled stock automatically in an early stage in a roughing-down mill which is used on a hot-rolling line for steel sheets or the like. Sensors are provided on the inlet side and outlet ...
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JP3914296 |
To surely detect whether a material exists on skid rails or not, by electrically insulating the selected skid rail from a stand in a material supplying equipment and arranging a measuring instrument for detecting the variation of electri...
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JP3909012 |
To make a roller holder have higher rigidity, while making the roller holder have the same thickness as conventional ones. A roller guide is provided with: a pair of roller holders 2b, which is arranged in an openable and closable manner...
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JP3903630 |
To prevent a steel product from twisting and to reduce a quality defect by setting a transfer speed of a table roller to transfer the steel product slower than ejection speed of the steel product, moving the tip of the steel product in t...
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JP3903620 |
To provide a roll drive control method, a device therefor and continuous treatment equipment for a bandlike body capable of preventing a slip of the bandlike body due to roll diameter change etc. beforehand by providing a means concretel...
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JP3903376 |
To obtain a bridle roll controller in which the generation of slip is suppressed, the generation of the slip is detected automatically, the roll after the slip is generated is automatically switched from torque control to speed control a...
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JP3905666 |
To guide a rolled material into a groove of a rolling roll without causing twisting or scratch. This equipment can guide a rolled material smoothly into a groove by organically installing an entry guide 4 and an upper guide 5 sequentiall...
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JP2007007709 |
To provide a steel plate straightening method capable of bringing respective rolls of a rolling-reduction and straightening device into contact with the surface of a steel plate to be straightened without causing scratch or the like on t...
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JP3902080 |
To provide an overlaid guide member of excellent wear resistance to a slip velocity in an extensive range, and a method for manufacturing the guide member at a low cost. In the overlaid guide member of excellent wear resistance having an...
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JP3900844 |
To provide an apparatus and a method for cooling a hot-rolled steel strip, by which even the steel strip without being applied with tension is stably strongly cooled on a runout table between the outlet side of the final finishing mill, ...
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JP2007000932 |
To improve driving performance of a guide roller in a roller guide for a rolling mill.A guide 10 for directing a hot rolled product along a path in the rolling mill includes at least one annular roller which is arranged so as to contact ...
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JP3899244 |
To make the high-efficiency reversible rolling of a steel bar possible. A pair of side guide pieces 21 for guiding the side parts of the steel bar are provided freely turnably on a horizontal plane and made into the state where one end o...
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JP3897669 |
To remarkably reduce the possessive number of guides, to impart guiding function of surely guiding a rolled stock into a rolling mill without having especially large-scale equipment and also to perform roll changing work of the rolling m...
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JP2006346720 |
To increase the efficiency of machining work and to enhance machining yield.In this machining line system for a wire rod , a guide device 2, a flaw detector 3 and amachining die 4 are arranged toward the feeding direction of the wire rod...
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JP2006346691 |
To exactly remove scales of a rail material and to prevent the camber by simple constitution.A descaling part 3 and a guide part 4 are attached to a guide box 2 adjacently each other. The descaling part 3 forms a water jetting unit for r...
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JP3894200 |
To provide a guide plate, which is used as an apron on a hot-run table or a rolling-mill delivery guide, secures a stable passing performance of a hot-rolled steel strip on a hot-run table, and further is made of a resin-based material e...
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JP3896110 |
To provide an in-line soaking method of a heated steel plate in which any temperature fluctuation such as skid marks is reduced to meet severe requests for fluctuation of the thickness and the material of a product by effectively perform...
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JP3895803 |
To make it possible to easily control a tensile force applied by a strip by controlling rocking links by separate hydraulic cylinders and forming a base connecting the same as a torsional spring. First roll is almost stationally born and...
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JP3895879 |
To simplify the management and handling of guide devices and to raise durability. A driving part 102 having hydraulic motors or the like is placed at a distance to the main body part 101 of a guide device arranged on the inlet side of a ...
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JP2006334626 |
To provide a inserting method of a billet into reciprocating mills by which rolling work can be stabilized and in its turn productivity can be improved by automating the inserting operation of the billet into the reciprocating mills.This...
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JP2006326658 |
To provide a simple steel strip steering device capable of preventing hunting of the meandering corrective action of a roll.In the steering device for correcting the meandering of a steel strip by rocking a roll to hold the steel strip f...
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JP2006326593 |
To provide a method for manufacturing steel having excellent surface property capable of effectively reducing the rate of scab formation which cannot be reduced only by a conventional countermeasures.Water lubrication of a contact interf...
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JP2006326594 |
To provide a method for manufacturing steel having excellent surface property capable of effectively reducing the rate of scab formation which cannot be reduced only by a conventional countermeasures.In a steel manufacturing method in wh...
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JP2006326668 |
To restrain backside flaws in hot rolling, to enhance the yield ratio by decreasing defectives to be thrown away, and to cut down labor, costs and time for transfering a rolled product to another line for throwing the defectives away.A l...
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JP3887121 |
To prevent hang-down at the rear end part of a steel sheet by arranging plural points which are at the front tip position of the steel sheet to be oscillated on a conveying table, selecting these points according to the length of the ste...
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JP3886754 |
To provide a rolled material transfer apparatus 1, which enables improvement of production efficiency for bar steel or the like. The rolled material transfer apparatus 1 is equipped with a first roller table 9, a second roller table 11 a...
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JP3884861 |
To improve a meandering correction ability and to reduce the wear of rolls by inclining meandering correction rolls with each other in the upright state of their axes to make a pair and arranging plural sets of these pairs in the feed pa...
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JP3881117 |
To improve the dimensional accuracy and yield of products by increasing the effect of preventing torsion of a rolled stock at the time of guiding. In this method, two-face-width part where the nodal parts of the rolled stock reduced with...
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JP3876715 |
To produce a high-quality product by preventing the generation of scratches and flushes on the surface by always smoothly guiding a rolled wire rod. A plurality of roller sets 31 composed of a pair of rotary rollers 30, 30 which are rota...
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