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JP2009195925 |
To reduce scrapped parts accompanying cutting or the like as small as possible and to improve the yield when manufacturing a hot-rolled metal band in a hot rolling line.Flying thickness change is performed during rolling a material to be...
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JP2009195983 |
To provide a rolling mill equipped with a rolling bearing, and a method for controlling sheet thickness, by which highly precise sheet thickness control is enabled.A rolling mill which uses a rolling bearing for a roll chock is provided ...
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JP2009190076 |
To improve the accuracy of a plate thickness by changing the cut-off frequency of a AGC filter corresponding to rolling speed.In a first pass, plate thickness deviation obtained from an outlet-side thickness meter 5 is stored to a plate ...
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JP2009185386 |
To provide a method for producing a wide range of high-performance non-grain-oriented electrical steel sheets having excellent magnetic properties.A steel starting material, especially a pre-rolled slab heated to 1250C reheat temperature...
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JP2009183969 |
To provide a method capable of accurately obtaining an arc contact length and deformation resistance, which are necessary for calculation of a rolling load, without requiring complicated calculation processing, and of accurately predicti...
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JP2009178753 |
To provide a manufacturing method of a thick steel plate capable of enhancing the yield while suppressing generation of any flaw.The manufacturing method of the thick steel plate includes: a growth increment calculating step of calculati...
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JP2009178754 |
To provide a control method of a rolling mill by which a differential load caused by the meandering can correctly be detected by estimating the differential load caused by the thrust, and then the differential load type meandering contro...
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JP2009178740 |
To provide a method and a device for preparing a rolling schedule in a hot-rolling shop capable of preventing decrease in productivity even when changing a hot piece and a cold piece without newly adding any heating furnace.The method co...
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JP2009166087 |
To remarkably improve the yield of shipment, even when the variation of material is generated in the longitudinal direction of a rolled product, by optimizing the part where the rolled product is cut off in the downstream stage.This qual...
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JP2009160626 |
To provide a method of temper-rolling a steel strip by which rolling load is set in a short period of time when temper-rolling the steel strip.After calculating rolling load PS(i) to be imparted to the steel strip, resetting is performed...
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JP2009160599 |
To make it possible to accurately predict the temperature of a rolled stock in a cooling system for rolled stocks.In a method of predicting the temperature of the rolled stock 2, the plate temperature of the rolled stock 2 which is coole...
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JP2009160623 |
To provide a sheet thickness control system by which sheet thickness is controlled with good responsiveness and with high accuracy even when the feed speed of a material to be rolled is low.A control section 10 is provided with a feedfor...
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JP2009160650 |
To suppress failure caused by a camber of a plate during rolling without lowering the efficiency of the rolling using a reversing rolling mill.The draft in each pass is beforehand planned as a pass schedule so that the target thickness i...
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JP2009157878 |
To enhance control accuracy, and to shorten the adjustment period of a control rule in a plant system which performs fuzzy control on the basis of the control rule.A fuzzy controller 13 includes: an aggravation control rule space determi...
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JP2009154197 |
To evade the interference between a plate thickness controller and a tension controller when controlling the plate thickness on the outlet-side of the final stand and interstand tension constant without changing the screw-down position o...
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JP2009151383 |
To construct a relation model between quality and an operation easily understandable physically and reflected with an intention of an analytical person, by preparing a division pattern, based on preset division points, by making changeab...
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JP2009148809 |
To control winding temperature and intermediate temperature with high accuracy while observing the holding time of the intermediate temperature.A preset control means 110 is provided and header patterns of an upstream cooling system 160 ...
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JP2009148797 |
To obtain a control system for cold tandem rolling equipment in which the predicted accuracy of a control model is remarkably improved by measuring grain size information such as ferritic grain size as the material information of a rolle...
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JP2009142879 |
To provide a wet temper rolling method by which a steel sheet having the surface roughness (Ra) of a metallic strip which is specially desired.About transfer efficiency ((, y)) defined by the surface roughness (S) of a metallic strip aft...
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JP2009119523 |
To prevent a portion of a material 8 to be rolled from being fractured by tension acted when rolling with a cold tandem rolling mill 104 is restarted, or the like since the portion of the material 8 where is predetermined to be stopped w...
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JP2009113109 |
To provide a load distribution control device for a continuous rolling mill capable of using a state after the manual intervention by an operator of the mill as a target value of the rolling load ratio.The load distribution control devic...
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JP2009113100 |
To secure accuracy of a plate thickness at a final stand outlet by correcting an error of a mass flow estimated plate thickness generated in a transient situation such as acceleration or deceleration period of a rolling mill, through mas...
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JP2009116759 |
To provide a control model learning method and device in a process line, which solve issues by combined use of a learning system high in following property and a learning system high in a noise-proof property, and to provide a production...
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JP2009113101 |
To provide a method and an apparatus for learning control of rolling load capable of suppressing error fluctuation of estimated rolling load between rolling stands, by modeling error change between the preceding rolling stands and the la...
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JP2009113091 |
To provide a plate thickness control method of a high-strength steel plate in cold rolling, capable of performing stable cold rolling without causing any trouble such as plate breakage or line stop by correctly calculating deformation re...
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JP2009113111 |
To realize the cooling control with high accuracy by a simple computation in a winding temperature control device in the hot rolling.When estimating the winding temperature by the differential computation of a control code calculation me...
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JP2009106975 |
To surely prevent the occurrence of heat scratch in an easy and simple manner without degrading productivity when manufacturing a cold-rolled steel sheet by applying cold rolling using a cold tandem mill having a plurality of stands to a...
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JP2009095852 |
To surely manufacture a hot-rolled steel sheet, whose in-plane anisotropy of r value is so small as to be sufficiently usable in deep-drawing applications.A hot-rolled steel sheet is manufactured by finish-rolling a to-be-rolled material...
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JP2009090348 |
To provide a method of controlling thickness for improving the accuracy of thickness in the front and rear ends of a coil by accurately performing the setting of a roll gap and the circumferential speed of a roll in acceleration and dece...
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JP2009082985 |
To reduce a useless staying time in a heating furnace while satisfying the staying time in the furnace of a slab for a plurality of kinds of slabs and further to more increase the efficiency of a rolling.Attribute data and rolling-restri...
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JP2009074165 |
To provide a method and a device for emergency stop of a process line drive motor capable of safely stopping a line drive motor of the entire process line or a part thereof when any trouble occurs in a control device for determining the ...
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JP2009072807 |
To provide a method and device for controlling a planar shape of a rolled stock by which an excellent planar shape can be obtained by obtaining an accurate model which is nearly coincident by performing simple adjustment to change in ope...
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JP2009066637 |
To simultaneously materialize a uniform crown and a flat shape in the longitudinal direction of a steel plate.When performing crown-shape feedback control, the crown control is made highly responsive by correcting the bender amount of a ...
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JP2009066629 |
To provide a slab designing method and a slab designing device which can select the slab casting width accordingly to the production environment while quantitatively evaluating the effect on the production capacity, the manufacturing cos...
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JP2009066658 |
To provide a method for obtaining material information on an outgoing steel plate over the entire length without spending much time and much labor and for providing a user with detailed massive material information through a computer and...
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JP2009061484 |
To estimate a thermal crown amount correctly as possible even when an idle time is short.In the method for estimating a thermal crown, since the rolling condition of the following sheet bar 1 is set by using thermal crown amounts u1 and ...
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JP2009064054 |
To provide a control method for controlling product quality under optimal manufacturing conditions; and a control apparatus of product quality for implementing the method.The method comprises a regression formula definition process of de...
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JP2009056504 |
To successively conduct a rolling operation by using a manufacturing device of a hot-rolled steel sheet provided with a hot-rolling mill, a transportation table, a plurality of water-cooling devices arranged in a transportation direction...
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JP2009050911 |
To provide a method and a device for supporting the operation of a rolling mill which focuses attention on the supervising motion of an operator complementing the actuation of automatic controls and enables another operator to perform th...
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JP2009045635 |
To make a stable operation possible by preventing variation of inter-stand tension when rolling the nose part of a rolled stock.In a method of controlling the tension of the rolled stock in which inter-stand tension is controlled by adju...
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JP2009045650 |
To provide a rolling method which prevents meandering by performing appropriate levelling control in a rolling process of a metal plate material by taking into consideration the shape of a metal-plate raw material and an offset amount of...
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JP2009045640 |
To stably uniform a winding shape.In a method of winding a steel wire rod for winding the steel wire rod 3 rolled with a finishing mill 6 with a winding reel 8 arranged on the downstream side of the finishing mill 6, before the steel wir...
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JP2009039757 |
To elevate a line speed as high as possible without applying heavy overload to a driving motor for driving rolling rolls in a mill for rolling wires.In a wire rolling method for rolling the wires by using a tandem rolling equipment havin...
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JP2009034730 |
To provide a tension control device for tandem rolling mills capable of highly accurately controlling the tension of a rolled stock.This device is a tension control device for tandem rolling mills with which the rolled stock 1 is rolled ...
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JP2009028749 |
To provide a method of deciding a pass schedule in tandem rolling equipment by which the pass schedule in accordance with the purpose of rolling is easily decided.In the method of deciding the pass schedule in the tandem rolling equipmen...
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JP2009028772 |
To provide a method of calculating the amount of camber of a steel sheet during rolling and a method of manufacturing the steel sheet by which the camber shape of the steel sheet when rolling the steel sheet is measured accurately and at...
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JP2009022985 |
To provide a control method for compensating the insufficient capacity of a shape control means, and manufacturing a rolled material having excellent shape accuracy with high productivity by suppressing a change in a rolling load much in...
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JP2009006373 |
To attain uniform crown in the longitudinal direction of a steel sheet.A crown controller is provided with a setup means 102 or the like for calculating the preset value of a bender by setup calculation prior to rolling of the steel shee...
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JP2009000735 |
To provide a method for analyzing roll eccentricity of a rolling mill, which can simply, surely, and accurately calculate upper and lower eccentricity components, and to provide a device for eliminating the roll eccentricity.Roll eccentr...
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JP2009000742 |
To control plate thickness difference in the plate width direction on the outlet side of a finishing mill of a hot strip mill to a desired value during rolling by installing a plate thickness measuring instrument for the plate width dire...
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