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JP2004188499 |
To provide a rod delivery system and method for increasing a tonnage rate in a mill which performs rolling of rod stock.In the method and system for receiving rod stocks hot-rolled from a rolling mill and delivering them to a cooling bed...
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JP3563587 |
To prolong the durable life of a pressing tool used at the time of edging a hot slab of steel etc., and to reduce the frequency of replacement of the tool by preventing the occurrence of heat checks at the slab pressing surface. A slab p...
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JP2004160545 |
To prevent occurrence of troubles such as drawing in a tail end portion of a rolled work after passing a rolling mill when the work is suddenly cut on the inlet side of the rolling mill during the rolling operation, and to considerably s...
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JP3560861 |
To maintain high productivity of a plate material with a good finished surface without flawing the plate material by satisfying the relationship of HVR≥1.5HBB+770 when the hardness of roll surface is expressed in Vickers hardness HVR a...
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JP3560397 |
To provide a speed controller for a hot rolling equipment capable of securing a running joining by controlling so that the position to which the tip of a succeeding material catches up with the tail end of a preceding material becomes co...
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JP3555751 |
To form a part of a board material into a thin shape, and to form the thin part of the board into a trapezoidal shape by rotating a rolling means on the turn table, thereby achieving lightening in weight of the board and reducing the cos...
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JP3546616 |
To surely make slabs during transporting catch up with each other and to join them during running by controlling the speed of the succeeding material so that the interval between the tail end of a preceding material and the tip of the su...
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JP3544619 |
To make it possible to stably heat by interrupting the leakage current of an eddy current to a metallic roll while preventing a spark from generating when heating the strip edge by the induction heating device using a C-type inductor. Th...
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JP2004106047 |
To shorten the length of a crop by solving a problem wherein the crop remains on the upside of the lower edge of a flying shear owing to the shortening of the length of the crop in a method for cutting the tail end part of a bar or/and a...
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JP3537101 |
PURPOSE: To improve yield at the time of continuously rolling while welding metallic strips including a weld zone. CONSTITUTION: The metallic strips 1 which are uncoiled from plural pay-off reels 2, 3 are welded at the rear end of a prec...
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JP3536990 |
PURPOSE: To prevent the generation of the crack in the metal bold under edging of a hot slab. CONSTITUTION: The press metal mold having inclined parts 4 expanded and inclined to the slab advance side and flat parts 3 facing both transver...
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JP2004090018 |
To provide an edging device in which a slab is approximately continuously fed while edging the slab with a pair of dies, the driving structure of which is simple and miniaturized, which follows up the change of an edged width without usi...
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JP3534466 |
PURPOSE: To cut bar steel into each product with an accurate length and also, reduce the maintenance and management expenses of the device by omitting a measuring device requiring maintenance inspection, concerning the device which cuts ...
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JP3533080 |
To improve an initial velocity follow-up ability for a steel sheet and to avoid tensile strength variation of the sheet after restraining the sheet by controlling the velocity until a welding truck holds a tail end of a preceding sheet a...
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JP2004074178 |
To provide a descaling method in hot rolling by which a scale type defect of the so-called red scale is prevented by removing the scale containing Si or the like which bites into an base iron in a wedge shape together with the scale of F...
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JP2004074227 |
To improve yield, to eliminate fear of shipping products below standards and to stabilize quality by performing omission of both end parts of a wire rod extended by hot rolling always exactly.The temperature of the passing wire rod 17 is...
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JP3526228 |
To perform high quality butt welding at high velocity and a stable condition, and make a welding device and a post-processing device for grinding, annealing, and the like compact and complex. In this metallic plate butt welding device, p...
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JP3521853 |
To provide a manufacturing method of an LP steel plate which is applicable regardless of the presence or absence of a flat part and by which the LP steel plate is surely cut off at good dimensional accuracy from a material to be rolled h...
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JP2004050219 |
To make strip thickness distribution at both edge parts in the width direction uniform and to make the flatness of the strip in the longitudinal direction excellent even in the case the disproportional recessing and projecting shape are ...
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JP2004050245 |
To provide a conveying apparatus for edging press devices in which the structure of the slab conveying line is simple and which copes with the change of the amount of edging of the edging press easily.In an edging press line by which the...
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JP2004042084 |
To remarkably shorten a joining period of time and also simplify a looper facility as compared with the conventional method such as a flash butt welding method or a laser beam welding method.This steel plate splicing facility is equipped...
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JP3520148 |
To prevent a steel from being cut away during rolling by butting the rear end of an advance steel and the force end of a following steel, heating a joining part and the neighborhood to the temperature lower than an MnS melting temperatur...
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JP3517357 |
To prevent productivity from degrading by forming a taping means which conducts jointing with adhesive tape under such a condition that the edges of front and rear metallic plate materials are butted to each other. A supplying and moving...
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JP2004025229 |
To provide a method and a device capable of deciding a crop cutting position of a steel sheet taking not only product yield but also production efficiency in a post-stage into account.The crop cutting position deciding device 10 is provi...
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JP2004025189 |
To provide a flying press capable of improving reliability and working rate.The flying press is provided with a position control means which calculates the distance e between pressing surfaces 22a of a die 22 and controls a pressing moto...
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JP3515694 |
To avoid any trouble in steps after the mutual connection of a preceding metal plate and the following one, typically liquid leaks in a step of foamingly filling the gap between vertically opposed metal plates with a foaming material of ...
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JP3511564 |
To prevent a step out between main and rolling clank mechanisms by performing synchronous control of the rolling and main clank mechanisms, such that both of them are subjected to correction to load fluctuation respectively. A main crank...
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JP3511482 |
To simplify the structure of a slab sizing press while securing the stability of the mechanism thereof and to obtain good maintenancability. An arm 3 is fitted so as to be rotatable to a crank shaft 2 and an outer block 9 transmitting lo...
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JP2004009119 |
To provide hot rolling equipment and a hot rolling method capable of utilizing the benefits of a flat roll and a caliber roll without disadvantages of the equipment cost, spaces, and productivity.The hot rolling equipment has a pair of v...
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JP2004001095 |
To apply welding technique to rolling treatment by avoiding problems and defects related with a current execution method or at least by making them substantially minimum.A first rolling stand 10 is operated at the sending speed exceeding...
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JP3503623 |
To prevent a subsidiary fracture accident of the splicing portion by an excessive tensile force when the tip end of a hot rolled steel strip is wound around the coiler mandrel in the endless hot rolling. A splicing point is transferred b...
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JP3504425 |
To effectively reduce the developments of edge seam flaw and surface roughening on a stainless steel plate produced through a series of hot-rolling containing a width press and/or the width rolling reduction with vertical rolls. The heat...
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JP3503609 |
To prevent a breaking failure of a jointed part due to excessive tension at the time when the tip of a hot rolled steel strip is coiled to a coiler mandrel in endless hot rolling. After a joining part is densely/solidly formed, the joini...
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JP3503624 |
To prevent the breaking accident in a joined part by excessive tension when the tip of a hot-rolled steel strip is wound around the mandrel of a coiler in endless hot rolling. A joined point is transferred with a tracking device 30, the ...
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JP3501914 |
To obtain descaling (cutting) method excellent in heat resistance and shock resistance. This method is a method in which, after the rear end part of a preceding steel and the tip part of the succeeding steel which are pressure welded are...
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JP3502726 |
To provide such a clamping device for a flying work equipment that is capable of adjusting with high precision a clamping position without causing increase in the equipment cost and the oil consumption unit, even in the case where the th...
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JP2003340502 |
To provide a method to accurately suppress camber caused by a sizing press device without causing waste of time or predicted error. Camber of the slab S is detected by angle deviation between an oscillating crank 3 on the drive side of t...
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JP3497041 |
To prevent a flange tip part from being burnt onto rolls by pressing the flange tip part of a mid part section in the direction being nearer to the sectional shape of a tip part on the bite side to a roll caliber by material deformation ...
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JP2003334605 |
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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JP3495558 |
To improve reliability on detection of a joined point by more accurately detecting the joined point of the tail end of a preceding band plate with the tip of the succeeding band plate than the conventional method and also preventing dist...
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JP3495111 |
PURPOSE: To facilitate the maintenace of a joining device by arranging clamps and pressing means on frame so as to be movable in the width direction of a slab separately from an alternating field generating coil. CONSTITUTION: The rear e...
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JP3492119 |
To improve the productivity of a strip stock by providing with a flying joining machine joining the tail end of a preceding rolled stock and the front end of a succeeding rolled stock while flying together with the rolled stock. A slab i...
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JP3491703 |
PURPOSE: To provide a rolled material jointing device and a jointing method which can joint the rear end part of preceding rolled material and the tip part of succeeding rolled material to each other in a short time with sufficient joint...
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JP3492408 |
PURPOSE: To efficiently raise the temperature of a part requiring preheating and also to perform continuous operation. CONSTITUTION: In the steel sheet joining welding equipment having preheating equipment of steel sheets 1 and 2 when th...
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JP2003320401 |
To provide an apparatus for dividing a rolled material which can help improve the material yield.The apparatus to divide the rolled material comprises a flying shear 1, a cooling bed 3, a run-out table 5, a first shearing line 7, a secon...
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JP2003311303 |
To make the material of a hot-rolled steel strip and the structure of a hot-rolled high-tensile steel strip having hyperfine structure uniform in the longitudinal direction by adding uniform strain in the longitudinal direction when perf...
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JP2003311317 |
To prevent the crack of a material due to the low toughness of a tube stock and the break of a mandrel following the working of at tube with the grooved inside surface when performing the cold rolling using a hard-to-work tube stock.By t...
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JP2003305574 |
To provide a controlling method for flash butt welding of two metallic parts A and A' in a welding machine having two pairs of fixing clamps 2 and 2' mounted respectively on a fixed frame 1 and mobile frame 1' in order to supply electric...
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JP3485414 |
To prevent the scale from being included in a welded part by bringing clamping devices close to each other, butting and pressing end faces after cutting stocks and pressing them against each other to float the scales on the end faces of ...
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JP3483518 |
To provide an improved flying shear which can certainly operate at all rolling mill discharging speed. A shear 10 has a preceding edge 28 and a following edge 24 which rotate in mutually opposite directions along an upper and a lower sha...
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